Merge branch 'DRTVWR-594-maint-Y' into marchcat/594-y-pbr-merge

# Conflicts:
#	indra/newview/llinventorygallery.cpp
#	indra/newview/skins/default/xui/en/notifications.xml

53 files changed, 1321 insertions, 318 deletions

diff --git a/autobuild.xml b/autobuild.xml
index 37371746d5..9710b7a083 100644
--- a/autobuild.xml
+++ b/autobuild.xml
@@ -408,11 +408,11 @@
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>f6835c4d7745cd1cadfbce47b40331d08affb532</string>
+              <string>e03eb77224290c875ff84f75b7fe3d0e7c162c94</string>
               <key>hash_algorithm</key>
               <string>sha1</string>
               <key>url</key>
-              <string>https://github.com/secondlife/3p-dictionaries/releases/download/v1.0.1-dev2.gf887629-f887629/dictionaries-common-None.tar.zst</string>
+              <string>https://github.com/secondlife/3p-dictionaries/releases/download/v1-a01bb6c/dictionaries-1.a01bb6c-common-a01bb6c.tar.zst</string>
             </map>
             <key>name</key>
             <string>common</string>
@@ -425,7 +425,7 @@
         <key>copyright</key>
         <string>Copyright 2014 Apache OpenOffice software</string>
         <key>version</key>
-        <string>None</string>
+        <string>1.a01bb6c</string>
         <key>name</key>
         <string>dictionaries</string>
         <key>description</key>
@@ -734,11 +734,11 @@
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>6604c1cca515d287e697997a8d5593d1cae172a9</string>
+              <string>066625e7aa7f697a4b6cd461aad960c57181011f</string>
               <key>hash_algorithm</key>
               <string>sha1</string>
               <key>url</key>
-              <string>https://github.com/secondlife/3p-glh_linear/releases/download/v1.0.1-dev2.g3253ed7-3253ed7/glh_linear-common-None.tar.zst</string>
+              <string>https://github.com/secondlife/3p-glh_linear/releases/download/v1.0.1-dev4-984c397/glh_linear-1.0.1-dev4-common-984c397.tar.zst</string>
             </map>
             <key>name</key>
             <string>common</string>
@@ -751,7 +751,7 @@
         <key>copyright</key>
         <string>Copyright (c) 2000 Cass Everitt</string>
         <key>version</key>
-        <string>None</string>
+        <string>1.0.1-dev4</string>
         <key>name</key>
         <string>glh_linear</string>
         <key>description</key>
@@ -882,11 +882,11 @@
               <key>creds</key>
               <string>github</string>
               <key>hash</key>
-              <string>a193ff65d6db48626d65d96c6124c6efca85e8ec</string>
+              <string>ae2c2a215b1bc2e3f37a67e301926dc405902d1a</string>
               <key>hash_algorithm</key>
               <string>sha1</string>
               <key>url</key>
-              <string>https://api.github.com/repos/secondlife/3p-havok-source/releases/assets/108912596</string>
+              <string>https://api.github.com/repos/secondlife/3p-havok-source/releases/assets/136778143</string>
             </map>
             <key>name</key>
             <string>darwin64</string>
@@ -910,11 +910,11 @@
               <key>creds</key>
               <string>github</string>
               <key>hash</key>
-              <string>ebfb82b6143874e7938b9d1e8a70d0a2e28aa818</string>
+              <string>0393dd75c58f7046bed47e62a8884a78cb02a5c3</string>
               <key>hash_algorithm</key>
               <string>sha1</string>
               <key>url</key>
-              <string>https://api.github.com/repos/secondlife/3p-havok-source/releases/assets/108912599</string>
+              <string>https://api.github.com/repos/secondlife/3p-havok-source/releases/assets/136778145</string>
             </map>
             <key>name</key>
             <string>windows64</string>
@@ -1120,11 +1120,11 @@
               <key>creds</key>
               <string>github</string>
               <key>hash</key>
-              <string>bcc7e2c34896fc9cbc41828dee8a4ddf54f10453</string>
+              <string>ad72fa1d103df777906f0d98f3e882b9916aeada</string>
               <key>hash_algorithm</key>
               <string>sha1</string>
               <key>url</key>
-              <string>https://api.github.com/repos/secondlife/3p-kdu/releases/assets/108298968</string>
+              <string>https://api.github.com/repos/secondlife/3p-kdu/releases/assets/136774118</string>
             </map>
             <key>name</key>
             <string>darwin64</string>
@@ -1136,11 +1136,11 @@
               <key>creds</key>
               <string>github</string>
               <key>hash</key>
-              <string>9de772df2ed12e9c742df6c90670c7cbbb9c93a6</string>
+              <string>e46e4ac93a237b5c4a14183766f76ba5d58935a2</string>
               <key>hash_algorithm</key>
               <string>sha1</string>
               <key>url</key>
-              <string>https://api.github.com/repos/secondlife/3p-kdu/releases/assets/108298969</string>
+              <string>https://api.github.com/repos/secondlife/3p-kdu/releases/assets/136774125</string>
             </map>
             <key>name</key>
             <string>linux64</string>
@@ -1152,15 +1152,31 @@
               <key>creds</key>
               <string>github</string>
               <key>hash</key>
-              <string>92533ff0f8c1881ad85e75800f9072c413ccf7b7</string>
+              <string>bb37557f78c72b26580a521f8b8dabfa1b34e6e6</string>
               <key>hash_algorithm</key>
               <string>sha1</string>
               <key>url</key>
-              <string>https://api.github.com/repos/secondlife/3p-kdu/releases/assets/108298970</string>
+              <string>https://api.github.com/repos/secondlife/3p-kdu/releases/assets/136774126</string>
             </map>
             <key>name</key>
             <string>windows64</string>
           </map>
+          <key>linux</key>
+          <map>
+            <key>archive</key>
+            <map>
+              <key>creds</key>
+              <string>github</string>
+              <key>hash</key>
+              <string>711b82f9f588d3a125af7dcd8c81f93d9c343a7d</string>
+              <key>hash_algorithm</key>
+              <string>sha1</string>
+              <key>url</key>
+              <string>https://api.github.com/repos/secondlife/3p-kdu/releases/assets/136774121</string>
+            </map>
+            <key>name</key>
+            <string>linux</string>
+          </map>
         </map>
         <key>license</key>
         <string>Kakadu</string>
@@ -1169,7 +1185,7 @@
         <key>copyright</key>
         <string>Kakadu software</string>
         <key>version</key>
-        <string>7.10.4.539108</string>
+        <string>7.10.4.4b9ec5f</string>
         <key>name</key>
         <string>kdu</string>
         <key>description</key>
@@ -1468,11 +1484,11 @@
             <key>archive</key>
             <map>
               <key>hash</key>
-              <string>e50ea94bbaa4ff41bf53b84b7192df1a694c5337</string>
+              <string>d3c1f7f947a2d8e89a98af816be2492afb42dfbc</string>
               <key>hash_algorithm</key>
               <string>sha1</string>
               <key>url</key>
-              <string>https://github.com/secondlife/llca/releases/download/v202310121525.0-d22bd98/llca-202310121530.0-common-d22bd98.tar.zst</string>
+              <string>https://github.com/secondlife/llca/releases/download/v202311020117.0-0f5d9c3/llca-202311012318.0-common-0f5d9c3.tar.zst</string>
             </map>
             <key>name</key>
             <string>common</string>
diff --git a/doc/contributions.txt b/doc/contributions.txt
index af8b259c74..3e49ecb3e5 100755
--- a/doc/contributions.txt
+++ b/doc/contributions.txt
@@ -842,6 +842,7 @@ Kadah Coba
 Jondan Lundquist
 Joosten Briebers
     MAINT-7074
+    BUG-225288
 Josef Munster
 Josette Windlow
 Juilan Tripsa
diff --git a/indra/llcommon/llevents.cpp b/indra/llcommon/llevents.cpp
index 0a213bddef..aa9a258723 100644
--- a/indra/llcommon/llevents.cpp
+++ b/indra/llcommon/llevents.cpp
@@ -152,12 +152,21 @@ void LLEventPumps::clear()
     }
 }
 
-void LLEventPumps::reset()
+void LLEventPumps::reset(bool log_pumps)
 {
     // Reset every known LLEventPump instance. Leave it up to each instance to
     // decide what to do with the reset() call.
+    if (log_pumps)
+    {
+        LL_INFOS() << "Resetting " << (S32)mPumpMap.size() << " pumps" << LL_ENDL;
+    }
+
     for (PumpMap::value_type& pair : mPumpMap)
     {
+        if (log_pumps)
+        {
+            LL_INFOS() << "Resetting pump " << pair.first << LL_ENDL;
+        }
         pair.second->reset();
     }
 }
@@ -314,9 +323,11 @@ std::string LLEventPump::inventName(const std::string& pfx)
 
 void LLEventPump::clear()
 {
+    LLMutexLock lock(&mConnectionListMutex);
     // Destroy the original LLStandardSignal instance, replacing it with a
     // whole new one.
     mSignal = std::make_shared<LLStandardSignal>();
+
     mConnections.clear();
 }
 
@@ -324,6 +335,7 @@ void LLEventPump::reset()
 {
     // Resetting mSignal is supposed to disconnect everything on its own
     // But due to crash on 'reset' added explicit cleanup to get more data
+    LLMutexLock lock(&mConnectionListMutex);
     ConnectionMap::const_iterator iter = mConnections.begin();
     ConnectionMap::const_iterator end = mConnections.end();
     while (iter!=end)
@@ -348,6 +360,8 @@ LLBoundListener LLEventPump::listen_impl(const std::string& name, const LLEventL
         return LLBoundListener();
     }
 
+    LLMutexLock lock(&mConnectionListMutex);
+
     float nodePosition = 1.0;
 
     // if the supplied name is empty we are not interested in the ordering mechanism 
@@ -507,8 +521,9 @@ LLBoundListener LLEventPump::listen_impl(const std::string& name, const LLEventL
     return bound;
 }
 
-LLBoundListener LLEventPump::getListener(const std::string& name) const
+LLBoundListener LLEventPump::getListener(const std::string& name)
 {
+    LLMutexLock lock(&mConnectionListMutex);
     ConnectionMap::const_iterator found = mConnections.find(name);
     if (found != mConnections.end())
     {
@@ -520,6 +535,7 @@ LLBoundListener LLEventPump::getListener(const std::string& name) const
 
 void LLEventPump::stopListening(const std::string& name)
 {
+    LLMutexLock lock(&mConnectionListMutex);
     ConnectionMap::iterator found = mConnections.find(name);
     if (found != mConnections.end())
     {
diff --git a/indra/llcommon/llevents.h b/indra/llcommon/llevents.h
index ae6e5aabc9..b5c4e58c9c 100644
--- a/indra/llcommon/llevents.h
+++ b/indra/llcommon/llevents.h
@@ -293,7 +293,7 @@ public:
      * Reset all known LLEventPump instances
      * workaround for DEV-35406 crash on shutdown
      */
-    void reset();
+    void reset(bool log_pumps = false);
 
 private:
     friend class LLEventPump;
@@ -519,7 +519,7 @@ public:
 
     /// Get the LLBoundListener associated with the passed name (dummy
     /// LLBoundListener if not found)
-    virtual LLBoundListener getListener(const std::string& name) const;
+    virtual LLBoundListener getListener(const std::string& name);
     /**
      * Instantiate one of these to block an existing connection:
      * @code
@@ -562,6 +562,7 @@ private:
     LLHandle<LLEventPumps> mRegistry;
 
     std::string mName;
+    LLMutex mConnectionListMutex;
 
 protected:
     virtual LLBoundListener listen_impl(const std::string& name, const LLEventListener&,
diff --git a/indra/llcommon/llmemory.cpp b/indra/llcommon/llmemory.cpp
index 7cdf7254ff..574b9b8b3b 100644
--- a/indra/llcommon/llmemory.cpp
+++ b/indra/llcommon/llmemory.cpp
@@ -38,6 +38,7 @@
 #include <mach/mach_host.h>
 #elif LL_LINUX
 # include <unistd.h>
+# include <sys/resource.h>
 #endif
 
 #include "llmemory.h"
@@ -273,33 +274,16 @@ U64 LLMemory::getCurrentRSS()
 
 U64 LLMemory::getCurrentRSS()
 {
-	static const char statPath[] = "/proc/self/stat";
-	LLFILE *fp = LLFile::fopen(statPath, "r");
-	U64 rss = 0;
+	struct rusage usage;
 
-	if (fp == NULL)
-	{
-		LL_WARNS() << "couldn't open " << statPath << LL_ENDL;
+	if (getrusage(RUSAGE_SELF, &usage) != 0) {
+		// Error handling code could be here
 		return 0;
 	}
 
-	// Eee-yew!	 See Documentation/filesystems/proc.txt in your
-	// nearest friendly kernel tree for details.
-	
-	{
-		int ret = fscanf(fp, "%*d (%*[^)]) %*c %*d %*d %*d %*d %*d %*d %*d "
-						 "%*d %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d %Lu",
-						 &rss);
-		if (ret != 1)
-		{
-			LL_WARNS() << "couldn't parse contents of " << statPath << LL_ENDL;
-			rss = 0;
-		}
-	}
-	
-	fclose(fp);
-
-	return rss;
+	// ru_maxrss (since Linux 2.6.32)
+	// This is the maximum resident set size used (in kilobytes).
+	return usage.ru_maxrss * 1024;
 }
 
 #else
diff --git a/indra/llmessage/lldatapacker.cpp b/indra/llmessage/lldatapacker.cpp
index 9f7768f78e..b7013dbb6e 100644
--- a/indra/llmessage/lldatapacker.cpp
+++ b/indra/llmessage/lldatapacker.cpp
@@ -298,6 +298,13 @@ BOOL LLDataPackerBinaryBuffer::unpackBinaryData(U8 *value, S32 &size, const char
 	}
 
 	htolememcpy(&size, mCurBufferp, MVT_S32, 4);
+
+    if (size < 0)
+    {
+        LL_WARNS() << "LLDataPackerBinaryBuffer::unpackBinaryData unpacked invalid size, aborting!" << LL_ENDL;
+        return FALSE;
+    }
+
 	mCurBufferp += 4;
 
 	if (!verifyLength(size, name))
diff --git a/indra/llui/llfiltereditor.h b/indra/llui/llfiltereditor.h
index 3a05bc05a1..52cad3bff4 100644
--- a/indra/llui/llfiltereditor.h
+++ b/indra/llui/llfiltereditor.h
@@ -43,6 +43,7 @@ class LLFilterEditor : public LLSearchEditor
 public:
 	struct Params : public LLInitParam::Block<Params, LLSearchEditor::Params>
 	{};
+    virtual ~LLFilterEditor() {}
 
 protected:
 	LLFilterEditor(const Params&);
diff --git a/indra/llui/llfloater.cpp b/indra/llui/llfloater.cpp
index 2303cd24b7..c67db54ea6 100644
--- a/indra/llui/llfloater.cpp
+++ b/indra/llui/llfloater.cpp
@@ -1772,6 +1772,8 @@ void LLFloater::onClickTearOff(LLFloater* self)
 		{
 			if (self->mSaveRect)
 			{
+                LLRect screen_rect = self->calcScreenRect();
+                self->mPosition = LLCoordGL(screen_rect.getCenterX(), screen_rect.getCenterY()).convert();
 				self->storeRectControl();
 			}
 			self->setMinimized(FALSE); // to reenable minimize button if it was minimized
diff --git a/indra/llui/llnotifications.cpp b/indra/llui/llnotifications.cpp
index d736aa6634..d87241a9bf 100644
--- a/indra/llui/llnotifications.cpp
+++ b/indra/llui/llnotifications.cpp
@@ -994,6 +994,7 @@ LLBoundListener LLNotificationChannelBase::connectChangedImpl(const LLEventListe
 	// all of the notifications that are already in the channel
 	// we use a special signal called "load" in case the channel wants to care
 	// only about new notifications
+    LLMutexLock lock(&mItemsMutex);
 	for (LLNotificationSet::iterator it = mItems.begin(); it != mItems.end(); ++it)
 	{
 		slot(LLSD().with("sigtype", "load").with("id", (*it)->id()));
@@ -1171,29 +1172,33 @@ LLNotificationChannel::LLNotificationChannel(const std::string& name,
 	connectToChannel(parent);
 }
 
-bool LLNotificationChannel::isEmpty() const
+LLNotificationChannel::~LLNotificationChannel()
 {
-	return mItems.empty();
+    for (LLBoundListener &listener : mListeners)
+    {
+        listener.disconnect();
+    }
 }
 
-S32 LLNotificationChannel::size() const
+bool LLNotificationChannel::isEmpty() const
 {
-	return mItems.size();
+	return mItems.empty();
 }
 
-LLNotificationChannel::Iterator LLNotificationChannel::begin()
+S32 LLNotificationChannel::size() const
 {
-	return mItems.begin();
+    return mItems.size();
 }
 
-LLNotificationChannel::Iterator LLNotificationChannel::end()
+size_t LLNotificationChannel::size()
 {
-	return mItems.end();
+	return mItems.size();
 }
 
-size_t LLNotificationChannel::size()
+void LLNotificationChannel::forEachNotification(NotificationProcess process)
 {
-	return mItems.size();
+    LLMutexLock lock(&mItemsMutex);
+    std::for_each(mItems.begin(), mItems.end(), process);
 }
 
 std::string LLNotificationChannel::summarize()
@@ -1201,7 +1206,8 @@ std::string LLNotificationChannel::summarize()
 	std::string s("Channel '");
 	s += mName;
 	s += "'\n  ";
-	for (LLNotificationChannel::Iterator it = begin(); it != end(); ++it)
+    LLMutexLock lock(&mItemsMutex);
+	for (LLNotificationChannel::Iterator it = mItems.begin(); it != mItems.end(); ++it)
 	{
 		s += (*it)->summarize();
 		s += "\n  ";
@@ -1213,14 +1219,14 @@ void LLNotificationChannel::connectToChannel( const std::string& channel_name )
 {
 	if (channel_name.empty())
 	{
-		LLNotifications::instance().connectChanged(
-			boost::bind(&LLNotificationChannelBase::updateItem, this, _1));
+        mListeners.push_back(LLNotifications::instance().connectChanged(
+			boost::bind(&LLNotificationChannelBase::updateItem, this, _1)));
 	}
 	else
 	{
 		mParents.push_back(channel_name);
 		LLNotificationChannelPtr p = LLNotifications::instance().getChannel(channel_name);
-		p->connectChanged(boost::bind(&LLNotificationChannelBase::updateItem, this, _1));
+        mListeners.push_back(p->connectChanged(boost::bind(&LLNotificationChannelBase::updateItem, this, _1)));
 	}
 }
 
@@ -1728,6 +1734,7 @@ void LLNotifications::cancel(LLNotificationPtr pNotif)
 
 void LLNotifications::cancelByName(const std::string& name)
 {
+    LLMutexLock lock(&mItemsMutex);
 	std::vector<LLNotificationPtr> notifs_to_cancel;
 	for (LLNotificationSet::iterator it=mItems.begin(), end_it = mItems.end();
 		it != end_it;
@@ -1752,6 +1759,7 @@ void LLNotifications::cancelByName(const std::string& name)
 
 void LLNotifications::cancelByOwner(const LLUUID ownerId)
 {
+    LLMutexLock lock(&mItemsMutex);
 	std::vector<LLNotificationPtr> notifs_to_cancel;
 	for (LLNotificationSet::iterator it = mItems.begin(), end_it = mItems.end();
 		 it != end_it;
@@ -1799,11 +1807,6 @@ LLNotificationPtr LLNotifications::find(LLUUID uuid)
 	}
 }
 
-void LLNotifications::forEachNotification(NotificationProcess process)
-{
-	std::for_each(mItems.begin(), mItems.end(), process);
-}
-
 std::string LLNotifications::getGlobalString(const std::string& key) const
 {
 	GlobalStringMap::const_iterator it = mGlobalStrings.find(key);
diff --git a/indra/llui/llnotifications.h b/indra/llui/llnotifications.h
index 921398a693..4d71d189f2 100644
--- a/indra/llui/llnotifications.h
+++ b/indra/llui/llnotifications.h
@@ -738,16 +738,19 @@ class LLNotificationChannelBase :
 {
 	LOG_CLASS(LLNotificationChannelBase);
 public:
-	LLNotificationChannelBase(LLNotificationFilter filter) 
-	:	mFilter(filter), 
-		mItems() 
-	{}
+    LLNotificationChannelBase(LLNotificationFilter filter) 
+    : mFilter(filter)
+    , mItems() 
+    , mItemsMutex()
+    {}
+
     virtual ~LLNotificationChannelBase()
     {
         // explicit cleanup for easier issue detection
         mChanged.disconnect_all_slots();
         mPassedFilter.disconnect_all_slots();
         mFailedFilter.disconnect_all_slots();
+        LLMutexLock lock(&mItemsMutex);
         mItems.clear();
     }
 	// you can also connect to a Channel, so you can be notified of
@@ -786,6 +789,7 @@ protected:
 	LLStandardSignal mChanged;
 	LLStandardSignal mPassedFilter;
 	LLStandardSignal mFailedFilter;
+    LLMutex mItemsMutex;
 	
 	// these are action methods that subclasses can override to take action 
 	// on specific types of changes; the management of the mItems list is
@@ -835,7 +839,7 @@ public:
 	LLNotificationChannel(const Params& p = Params());
 	LLNotificationChannel(const std::string& name, const std::string& parent, LLNotificationFilter filter);
 
-	virtual ~LLNotificationChannel() {}
+	virtual ~LLNotificationChannel();
 	typedef LLNotificationSet::iterator Iterator;
     
 	std::string getName() const { return mName; }
@@ -844,21 +848,23 @@ public:
 	{
 		return boost::iterator_range<parents_iter>(mParents);
 	}
-    
-	void connectToChannel(const std::string& channel_name);
-    
+
     bool isEmpty() const;
     S32 size() const;
-    
-    Iterator begin();
-    Iterator end();
-	size_t size();
-	
+    size_t size();
+
+    typedef boost::function<void(LLNotificationPtr)> NotificationProcess;
+    void forEachNotification(NotificationProcess process);
+
 	std::string summarize();
 
+protected:
+    void connectToChannel(const std::string& channel_name);
+
 private:
 	std::string mName;
 	std::vector<std::string> mParents;
+    std::vector<LLBoundListener> mListeners;
 };
 
 // An interface class to provide a clean linker seam to the LLNotifications class.
@@ -924,10 +930,6 @@ public:
 	void update(const LLNotificationPtr pNotif);
 
 	LLNotificationPtr find(LLUUID uuid);
-	
-	typedef boost::function<void (LLNotificationPtr)> NotificationProcess;
-	
-	void forEachNotification(NotificationProcess process);
 
 	// This is all stuff for managing the templates
 	// take your template out
diff --git a/indra/llui/llnotificationslistener.cpp b/indra/llui/llnotificationslistener.cpp
index e73ba1fbe9..83b5bf03ac 100644
--- a/indra/llui/llnotificationslistener.cpp
+++ b/indra/llui/llnotificationslistener.cpp
@@ -149,11 +149,11 @@ void LLNotificationsListener::listChannelNotifications(const LLSD& params) const
     if (channel)
     {
         LLSD notifications(LLSD::emptyArray());
-        for (LLNotificationChannel::Iterator ni(channel->begin()), nend(channel->end());
-             ni != nend; ++ni)
-        {
-            notifications.append(asLLSD(*ni));
-        }
+        std::function<void(LLNotificationPtr)> func = [notifications](LLNotificationPtr ni) mutable
+            {
+                notifications.append(asLLSD(ni));
+            };
+        channel->forEachNotification(func);
         response["notifications"] = notifications;
     }
     LLEventPumps::instance().obtain(params["reply"]).post(response);
diff --git a/indra/llui/llsearcheditor.cpp b/indra/llui/llsearcheditor.cpp
index bafeef41fb..7a88ecc76f 100644
--- a/indra/llui/llsearcheditor.cpp
+++ b/indra/llui/llsearcheditor.cpp
@@ -104,6 +104,14 @@ LLSearchEditor::LLSearchEditor(const LLSearchEditor::Params& p)
 	}
 }
 
+LLSearchEditor::~LLSearchEditor()
+{
+    mSearchButton = NULL;
+    mClearButton = NULL;
+    mSearchEditor->deleteAllChildren();
+    deleteAllChildren();
+}
+
 //virtual
 void LLSearchEditor::draw()
 {
diff --git a/indra/llui/llsearcheditor.h b/indra/llui/llsearcheditor.h
index c0f3c1d60c..bd51988d07 100644
--- a/indra/llui/llsearcheditor.h
+++ b/indra/llui/llsearcheditor.h
@@ -74,7 +74,7 @@ protected:
 	friend class LLUICtrlFactory;
 
 public:
-	virtual ~LLSearchEditor() {}
+	virtual ~LLSearchEditor();
 
 	/*virtual*/ void	draw();
 
diff --git a/indra/llui/lltooltip.cpp b/indra/llui/lltooltip.cpp
index a6552d4ff1..328d36c6e1 100644
--- a/indra/llui/lltooltip.cpp
+++ b/indra/llui/lltooltip.cpp
@@ -440,7 +440,13 @@ void LLToolTipMgr::createToolTip(const LLToolTip::Params& params)
 	tooltip_params.rect = LLRect (0, 1, 1, 0);
 
 	if (tooltip_params.create_callback.isProvided())
-		mToolTip = tooltip_params.create_callback()(tooltip_params);
+    {
+        mToolTip = tooltip_params.create_callback()(tooltip_params);
+        if (mToolTip == NULL) 
+        {
+            return;
+        }
+    }
 	else
 		mToolTip = LLUICtrlFactory::create<LLToolTip> (tooltip_params);
 
@@ -492,7 +498,7 @@ void LLToolTipMgr::show(const LLToolTip::Params& params)
 {
 	if (!params.styled_message.isProvided() 
 		&& (!params.message.isProvided() || params.message().empty())
-		&& !params.image.isProvided()) return;
+		&& !params.image.isProvided() && !params.create_callback.isProvided()) return;
 
 	// fill in default tooltip params from tool_tip.xml
 	LLToolTip::Params params_with_defaults(params);
diff --git a/indra/llwindow/lldxhardware.cpp b/indra/llwindow/lldxhardware.cpp
index 391a377280..07856edefc 100644
--- a/indra/llwindow/lldxhardware.cpp
+++ b/indra/llwindow/lldxhardware.cpp
@@ -71,7 +71,7 @@ HRESULT GetVideoMemoryViaWMI(WCHAR* strInputDeviceID, DWORD* pdwAdapterRam)
     BSTR pNamespace = nullptr;
 
     *pdwAdapterRam = 0;
-    hrCoInitialize = CoInitialize( 0 );
+    hrCoInitialize = CoInitializeEx(0, COINIT_MULTITHREADED);
 
     hr = CoCreateInstance( CLSID_WbemLocator,
                            nullptr,
@@ -234,7 +234,7 @@ std::string LLDXHardware::getDriverVersionWMI(EGPUVendor vendor)
 	std::string mDriverVersion;
 	HRESULT hrCoInitialize = S_OK;
 	HRESULT hres;
-	hrCoInitialize = CoInitialize(0);
+	hrCoInitialize = CoInitializeEx(0, COINIT_MULTITHREADED);
 	IWbemLocator *pLoc = NULL;
 
 	hres = CoCreateInstance(
@@ -687,7 +687,7 @@ BOOL LLDXHardware::getInfo(BOOL vram_only)
 	BOOL ok = FALSE;
     HRESULT       hr;
 
-    CoInitialize(NULL);
+    CoInitializeEx(NULL, COINIT_MULTITHREADED);
 
     IDxDiagProvider *dx_diag_providerp = NULL;
     IDxDiagContainer *dx_diag_rootp = NULL;
@@ -976,7 +976,7 @@ LLSD LLDXHardware::getDisplayInfo()
 	LLTimer hw_timer;
     HRESULT       hr;
 	LLSD ret;
-    CoInitialize(NULL);
+    CoInitializeEx(NULL, COINIT_MULTITHREADED);
 
     IDxDiagProvider *dx_diag_providerp = NULL;
     IDxDiagContainer *dx_diag_rootp = NULL;
diff --git a/indra/newview/CMakeLists.txt b/indra/newview/CMakeLists.txt
index c5477fdbd5..f0a6992884 100644
--- a/indra/newview/CMakeLists.txt
+++ b/indra/newview/CMakeLists.txt
@@ -233,6 +233,7 @@ set(viewer_SOURCE_FILES
     llfloaterimcontainer.cpp
     llfloaterinspect.cpp
     llfloaterinventorysettings.cpp
+    llfloaterinventorythumbnailshelper.cpp
     llfloaterjoystick.cpp
     llfloaterlagmeter.cpp
     llfloaterland.cpp
@@ -887,6 +888,7 @@ set(viewer_HEADER_FILES
     llfloaterimcontainer.h
     llfloaterinspect.h
     llfloaterinventorysettings.h
+    llfloaterinventorythumbnailshelper.h
     llfloaterjoystick.h
     llfloaterlagmeter.h
     llfloaterland.h
diff --git a/indra/newview/llagent.cpp b/indra/newview/llagent.cpp
index a273afab52..4fba730395 100644
--- a/indra/newview/llagent.cpp
+++ b/indra/newview/llagent.cpp
@@ -4335,6 +4335,10 @@ void LLAgent::teleportRequest(
 // Landmark ID = LLUUID::null means teleport home
 void LLAgent::teleportViaLandmark(const LLUUID& landmark_asset_id)
 {
+    if (landmark_asset_id.isNull())
+    {
+        gAgentCamera.resetView();
+    }
 	mTeleportRequest = LLTeleportRequestPtr(new LLTeleportRequestViaLandmark(landmark_asset_id));
 	startTeleportRequest();
 }
diff --git a/indra/newview/llappviewer.cpp b/indra/newview/llappviewer.cpp
index 1fc4a8532d..862006aba6 100644
--- a/indra/newview/llappviewer.cpp
+++ b/indra/newview/llappviewer.cpp
@@ -1711,7 +1711,7 @@ bool LLAppViewer::cleanup()
     LLNotifications::instance().clear();
 
 	// workaround for DEV-35406 crash on shutdown
-	LLEventPumps::instance().reset();
+	LLEventPumps::instance().reset(true);
 
 	//dump scene loading monitor results
 	if (LLSceneMonitor::instanceExists())
diff --git a/indra/newview/llchiclet.cpp b/indra/newview/llchiclet.cpp
index cc4f4536a4..3444f50e52 100644
--- a/indra/newview/llchiclet.cpp
+++ b/indra/newview/llchiclet.cpp
@@ -177,6 +177,11 @@ LLNotificationChiclet::LLNotificationChiclet(const Params& p)
 	LLFloaterNotificationsTabbed::getInstance()->setSysWellChiclet(this);
 }
 
+LLNotificationChiclet::~LLNotificationChiclet()
+{
+    mNotificationChannel.reset();
+}
+
 void LLNotificationChiclet::onMenuItemClicked(const LLSD& user_data)
 {
 	std::string action = user_data.asString();
diff --git a/indra/newview/llchiclet.h b/indra/newview/llchiclet.h
index 58a797218f..1698fa269a 100644
--- a/indra/newview/llchiclet.h
+++ b/indra/newview/llchiclet.h
@@ -531,8 +531,9 @@ public:
 	struct Params : public LLInitParam::Block<Params, LLSysWellChiclet::Params>{};
 		
 protected:
-	struct ChicletNotificationChannel : public LLNotificationChannel
+	class ChicletNotificationChannel : public LLNotificationChannel
 	{
+    public:
 		ChicletNotificationChannel(LLNotificationChiclet* chiclet) 
 			: LLNotificationChannel(LLNotificationChannel::Params().filter(filterNotification).name(chiclet->getSessionId().asString()))
 			, mChiclet(chiclet)
@@ -542,6 +543,7 @@ protected:
 			connectToChannel("Offer");
 			connectToChannel("Notifications");
 		}
+        virtual ~ChicletNotificationChannel() {}
 				
 		static bool filterNotification(LLNotificationPtr notify);
 		// connect counter updaters to the corresponding signals
@@ -553,9 +555,10 @@ protected:
 	};
 				
 	boost::scoped_ptr<ChicletNotificationChannel> mNotificationChannel;
-				
-	LLNotificationChiclet(const Params& p);
-				
+
+    LLNotificationChiclet(const Params& p);
+    ~LLNotificationChiclet();
+
 	/**
 	 * Processes clicks on chiclet menu.
 	 */
diff --git a/indra/newview/llfloaterinventorythumbnailshelper.cpp b/indra/newview/llfloaterinventorythumbnailshelper.cpp
new file mode 100644
index 0000000000..814f88e9b9
--- /dev/null
+++ b/indra/newview/llfloaterinventorythumbnailshelper.cpp
@@ -0,0 +1,543 @@
+/**
+ * @file llfloaterinventorythumbnailshelper.cpp
+ * @author Callum Prentice
+ * @brief LLFloaterInventoryThumbnailsHelper class implementation
+ *
+ * Usage instructions and some brief notes can be found in Confluence here:
+ * https://lindenlab.atlassian.net/wiki/spaces/~174746736/pages/2928672843/Inventory+Thumbnail+Helper+Tool
+ *
+ * $LicenseInfo:firstyear=2008&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2010, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+#include "llviewerprecompiledheaders.h"
+
+#include "llaisapi.h"
+#include "llclipboard.h"
+#include "llinventoryfunctions.h"
+#include "llinventorymodel.h"
+#include "llnotifications.h"
+#include "llnotificationsutil.h"
+#include "llscrolllistctrl.h"
+#include "lltexteditor.h"
+#include "lluictrlfactory.h"
+#include "lluuid.h"
+
+#include "llfloaterinventorythumbnailshelper.h"
+
+LLFloaterInventoryThumbnailsHelper::LLFloaterInventoryThumbnailsHelper(const LLSD& key)
+    :   LLFloater("floater_inventory_thumbnails_helper")
+{
+}
+
+LLFloaterInventoryThumbnailsHelper::~LLFloaterInventoryThumbnailsHelper()
+{
+}
+
+BOOL LLFloaterInventoryThumbnailsHelper::postBuild()
+{
+    mInventoryThumbnailsList = getChild<LLScrollListCtrl>("inventory_thumbnails_list");
+    mInventoryThumbnailsList->setAllowMultipleSelection(true);
+
+    mOutputLog = getChild<LLTextEditor>("output_log");
+    mOutputLog->setMaxTextLength(0xffff * 0x10);
+
+    mPasteItemsBtn = getChild<LLUICtrl>("paste_items_btn");
+    mPasteItemsBtn->setCommitCallback(boost::bind(&LLFloaterInventoryThumbnailsHelper::onPasteItems, this));
+    mPasteItemsBtn->setEnabled(true);
+
+    mPasteTexturesBtn = getChild<LLUICtrl>("paste_textures_btn");
+    mPasteTexturesBtn->setCommitCallback(boost::bind(&LLFloaterInventoryThumbnailsHelper::onPasteTextures, this));
+    mPasteTexturesBtn->setEnabled(true);
+
+    mWriteThumbnailsBtn = getChild<LLUICtrl>("write_thumbnails_btn");
+    mWriteThumbnailsBtn->setCommitCallback(boost::bind(&LLFloaterInventoryThumbnailsHelper::onWriteThumbnails, this));
+    mWriteThumbnailsBtn->setEnabled(false);
+
+    mLogMissingThumbnailsBtn = getChild<LLUICtrl>("log_missing_thumbnails_btn");
+    mLogMissingThumbnailsBtn->setCommitCallback(boost::bind(&LLFloaterInventoryThumbnailsHelper::onLogMissingThumbnails, this));
+    mLogMissingThumbnailsBtn->setEnabled(false);
+
+    mClearThumbnailsBtn = getChild<LLUICtrl>("clear_thumbnails_btn");
+    mClearThumbnailsBtn->setCommitCallback(boost::bind(&LLFloaterInventoryThumbnailsHelper::onClearThumbnails, this));
+    mClearThumbnailsBtn->setEnabled(false);
+
+    return true;
+}
+
+// Records an entry in the pasted items - saves it to a map and writes it to the log
+// window for later confirmation/validation - since it uses a map, duplicates (based on
+// the name) are discarded
+void LLFloaterInventoryThumbnailsHelper::recordInventoryItemEntry(LLViewerInventoryItem* item)
+{
+    const std::string name = item->getName();
+
+    std::map<std::string, LLViewerInventoryItem*>::iterator iter = mItemNamesItems.find(name);
+    if (iter == mItemNamesItems.end())
+    {
+        mItemNamesItems.insert({name, item});
+
+        writeToLog(
+            STRINGIZE(
+                "ITEM " << mItemNamesItems.size() << "> " <<
+                name <<
+                std::endl
+            ), false);
+    }
+    else
+    {
+        // dupe - do not save
+    }
+}
+
+// Called when the user has copied items from their inventory and selects the Paste Items button
+// in the UI - iterates over items and folders and saves details of each one.
+// The first use of this tool is for updating NUX items and as such, only looks for OBJECTS,
+// CLOTHING and BODYPARTS - later versions of this tool should make that selection editable.
+void LLFloaterInventoryThumbnailsHelper::onPasteItems()
+{
+    if (!LLClipboard::instance().hasContents())
+    {
+        return;
+    }
+
+    writeToLog(
+        STRINGIZE(
+            "\n==== Pasting items from inventory ====" <<
+            std::endl
+        ), false);
+
+    std::vector<LLUUID> objects;
+    LLClipboard::instance().pasteFromClipboard(objects);
+    size_t count = objects.size();
+
+    for (size_t i = 0; i < count; i++)
+    {
+        const LLUUID& entry = objects.at(i);
+
+        // Check for a folder
+        const LLInventoryCategory* cat = gInventory.getCategory(entry);
+        if (cat)
+        {
+            LLInventoryModel::cat_array_t cat_array;
+            LLInventoryModel::item_array_t item_array;
+
+            LLIsType is_object(LLAssetType::AT_OBJECT);
+            gInventory.collectDescendentsIf(cat->getUUID(),
+                                            cat_array,
+                                            item_array,
+                                            LLInventoryModel::EXCLUDE_TRASH,
+                                            is_object);
+
+            LLIsType is_bodypart(LLAssetType::AT_BODYPART);
+            gInventory.collectDescendentsIf(cat->getUUID(),
+                                            cat_array,
+                                            item_array,
+                                            LLInventoryModel::EXCLUDE_TRASH,
+                                            is_bodypart);
+
+            LLIsType is_clothing(LLAssetType::AT_CLOTHING);
+            gInventory.collectDescendentsIf(cat->getUUID(),
+                                            cat_array,
+                                            item_array,
+                                            LLInventoryModel::EXCLUDE_TRASH,
+                                            is_clothing);
+
+            for (size_t i = 0; i < item_array.size(); i++)
+            {
+                LLViewerInventoryItem* item = item_array.at(i);
+                recordInventoryItemEntry(item);
+            }
+        }
+
+        // Check for an item
+        LLViewerInventoryItem* item = gInventory.getItem(entry);
+        if (item)
+        {
+            const LLAssetType::EType item_type = item->getType();
+            if (item_type == LLAssetType::AT_OBJECT || item_type == LLAssetType::AT_BODYPART || item_type == LLAssetType::AT_CLOTHING)
+            {
+                recordInventoryItemEntry(item);
+            }
+        }
+    }
+
+    // update the main list view based on what we found
+    updateDisplayList();
+
+    // update the buttons enabled state based on what we found/saved
+    updateButtonStates();
+}
+
+// Records a entry in the pasted textures - saves it to a map and writes it to the log
+// window for later confirmation/validation - since it uses a map, duplicates (based on
+// the name) are discarded
+void LLFloaterInventoryThumbnailsHelper::recordTextureItemEntry(LLViewerInventoryItem* item)
+{
+    const std::string name = item->getName();
+
+    std::map<std::string, LLUUID>::iterator iter = mTextureNamesIDs.find(name);
+    if (iter == mTextureNamesIDs.end())
+    {
+        LLUUID id = item->getAssetUUID();
+        mTextureNamesIDs.insert({name, id});
+
+        writeToLog(
+            STRINGIZE(
+                "TEXTURE " << mTextureNamesIDs.size() << "> " <<
+                name <<
+                //" | " <<
+                //id.asString() <<
+                std::endl
+            ), false);
+    }
+    else
+    {
+        // dupe - do not save
+    }
+}
+
+// Called when the user has copied textures from their inventory and selects the Paste Textures
+// button in the UI - iterates over textures and folders and saves details of each one.
+void LLFloaterInventoryThumbnailsHelper::onPasteTextures()
+{
+    if (!LLClipboard::instance().hasContents())
+    {
+        return;
+    }
+
+    writeToLog(
+        STRINGIZE(
+            "\n==== Pasting textures from inventory ====" <<
+            std::endl
+        ), false);
+
+    std::vector<LLUUID> objects;
+    LLClipboard::instance().pasteFromClipboard(objects);
+    size_t count = objects.size();
+
+    for (size_t i = 0; i < count; i++)
+    {
+        const LLUUID& entry = objects.at(i);
+
+        const LLInventoryCategory* cat = gInventory.getCategory(entry);
+        if (cat)
+        {
+            LLInventoryModel::cat_array_t cat_array;
+            LLInventoryModel::item_array_t item_array;
+
+            LLIsType is_object(LLAssetType::AT_TEXTURE);
+            gInventory.collectDescendentsIf(cat->getUUID(),
+                                            cat_array,
+                                            item_array,
+                                            LLInventoryModel::EXCLUDE_TRASH,
+                                            is_object);
+
+            for (size_t i = 0; i < item_array.size(); i++)
+            {
+                LLViewerInventoryItem* item = item_array.at(i);
+                recordTextureItemEntry(item);
+            }
+        }
+
+        LLViewerInventoryItem* item = gInventory.getItem(entry);
+        if (item)
+        {
+            const LLAssetType::EType item_type = item->getType();
+            if (item_type == LLAssetType::AT_TEXTURE)
+            {
+                recordTextureItemEntry(item);
+            }
+        }
+    }
+
+    // update the main list view based on what we found
+    updateDisplayList();
+
+    // update the buttons enabled state based on what we found/saved
+    updateButtonStates();
+}
+
+// Updates the main list of entries in the UI based on what is in the maps/storage
+void LLFloaterInventoryThumbnailsHelper::updateDisplayList()
+{
+    mInventoryThumbnailsList->deleteAllItems();
+
+    std::map<std::string, LLViewerInventoryItem*>::iterator item_iter = mItemNamesItems.begin();
+    while (item_iter != mItemNamesItems.end())
+    {
+        std::string item_name = (*item_iter).first;
+
+        std::string existing_texture_name = std::string();
+        LLUUID existing_thumbnail_id = (*item_iter).second->getThumbnailUUID();
+        if (existing_thumbnail_id != LLUUID::null)
+        {
+            existing_texture_name = existing_thumbnail_id.asString();
+        }
+        else
+        {
+            existing_texture_name = "none";
+        }
+
+        std::string new_texture_name = std::string();
+        std::map<std::string, LLUUID>::iterator texture_iter = mTextureNamesIDs.find(item_name);
+        if (texture_iter != mTextureNamesIDs.end())
+        {
+            new_texture_name = (*texture_iter).first;
+        }
+        else
+        {
+            new_texture_name = "missing";
+        }
+
+        LLSD row;
+        row["columns"][EListColumnNum::NAME]["column"] = "item_name";
+        row["columns"][EListColumnNum::NAME]["type"] = "text";
+        row["columns"][EListColumnNum::NAME]["value"] = item_name;
+        row["columns"][EListColumnNum::NAME]["font"]["name"] = "Monospace";
+
+        row["columns"][EListColumnNum::EXISTING_TEXTURE]["column"] = "existing_texture";
+        row["columns"][EListColumnNum::EXISTING_TEXTURE]["type"] = "text";
+        row["columns"][EListColumnNum::EXISTING_TEXTURE]["font"]["name"] = "Monospace";
+        row["columns"][EListColumnNum::EXISTING_TEXTURE]["value"] = existing_texture_name;
+
+        row["columns"][EListColumnNum::NEW_TEXTURE]["column"] = "new_texture";
+        row["columns"][EListColumnNum::NEW_TEXTURE]["type"] = "text";
+        row["columns"][EListColumnNum::NEW_TEXTURE]["font"]["name"] = "Monospace";
+        row["columns"][EListColumnNum::NEW_TEXTURE]["value"] = new_texture_name;
+
+        mInventoryThumbnailsList->addElement(row);
+
+        ++item_iter;
+    }
+}
+
+#if 1
+// *TODO$: LLInventoryCallback should be deprecated to conform to the new boost::bind/coroutine model.
+// temp code in transition
+void inventoryThumbnailsHelperCb(LLPointer<LLInventoryCallback> cb, LLUUID id)
+{
+    if (cb.notNull())
+    {
+        cb->fire(id);
+    }
+}
+#endif
+
+// Makes calls to the AIS v3 API to record the local changes made to the thumbnails.
+// If this is not called, the operations (e.g. set thumbnail or clear thumbnail)
+// appear to work but do not push the changes back to the inventory (local cache view only)
+bool writeInventoryThumbnailID(LLUUID item_id, LLUUID thumbnail_asset_id)
+{
+    if (AISAPI::isAvailable())
+    {
+
+        LLSD updates;
+        updates["thumbnail"] = LLSD().with("asset_id", thumbnail_asset_id.asString());
+
+        LLPointer<LLInventoryCallback> cb;
+
+        AISAPI::completion_t cr = boost::bind(&inventoryThumbnailsHelperCb, cb, _1);
+        AISAPI::UpdateItem(item_id, updates, cr);
+
+        return true;
+    }
+    else
+    {
+        LL_WARNS() << "Unable to write inventory thumbnail because the AIS API is not available" << LL_ENDL;
+        return false;
+    }
+}
+
+// Called when the Write Thumbanils button is pushed. Iterates over the name/item and
+// name/.texture maps and where it finds a common name, extracts what is needed and
+// writes the thumbnail accordingly.
+void LLFloaterInventoryThumbnailsHelper::onWriteThumbnails()
+{
+    // create and show confirmation (Yes/No) textbox since this is a destructive operation
+    LLNotificationsUtil::add("WriteInventoryThumbnailsWarning", LLSD(), LLSD(),
+                             [&](const LLSD & notif, const LLSD & resp)
+    {
+        S32 opt = LLNotificationsUtil::getSelectedOption(notif, resp);
+        if (opt == 0)
+        {
+            std::map<std::string, LLViewerInventoryItem*>::iterator item_iter = mItemNamesItems.begin();
+            while (item_iter != mItemNamesItems.end())
+            {
+                std::string item_name = (*item_iter).first;
+
+                std::map<std::string, LLUUID>::iterator texture_iter = mTextureNamesIDs.find(item_name);
+                if (texture_iter != mTextureNamesIDs.end())
+                {
+                    LLUUID item_id = (*item_iter).second->getUUID();
+
+                    LLUUID thumbnail_asset_id = (*texture_iter).second;
+
+                    writeToLog(
+                        STRINGIZE(
+                            "WRITING THUMB " <<
+                            (*item_iter).first <<
+                            "\n" <<
+                            "item ID: " <<
+                            item_id <<
+                            "\n" <<
+                            "thumbnail texture ID: " <<
+                            thumbnail_asset_id <<
+                            "\n"
+                        ), true);
+
+
+                    (*item_iter).second->setThumbnailUUID(thumbnail_asset_id);
+
+                    // This additional step (notifying AIS API) is required
+                    // to make the changes persist outside of the local cache
+                    writeInventoryThumbnailID(item_id, thumbnail_asset_id);
+                }
+
+                ++item_iter;
+            }
+
+            updateDisplayList();
+        }
+        else
+        {
+            LL_INFOS() << "Writing new thumbnails was canceled" << LL_ENDL;
+        }
+    });
+}
+
+// Called when the Log Items with Missing Thumbnails is selected. This merely writes
+// a list of all the items for which the thumbnail ID is Null. Typical use case is to
+// copy from the log window, pasted to Slack to illustrate which items are missing
+// a thumbnail
+void LLFloaterInventoryThumbnailsHelper::onLogMissingThumbnails()
+{
+    std::map<std::string, LLViewerInventoryItem*>::iterator item_iter = mItemNamesItems.begin();
+    while (item_iter != mItemNamesItems.end())
+    {
+        LLUUID thumbnail_id = (*item_iter).second->getThumbnailUUID();
+
+        if (thumbnail_id == LLUUID::null)
+        {
+            writeToLog(
+                STRINGIZE(
+                    "Missing thumbnail: " <<
+                    (*item_iter).first <<
+                    std::endl
+                ), true);
+        }
+
+        ++item_iter;
+    }
+}
+
+// Called when the Clear Thumbnail button is selected.  Code to perform the clear (really
+// just writing a NULL UUID into the thumbnail field) is behind an "Are you Sure?" dialog
+// since it cannot be undone and potentinally, you could remove the thumbnails from your
+// whole inventory this way.
+void LLFloaterInventoryThumbnailsHelper::onClearThumbnails()
+{
+    // create and show confirmation (Yes/No) textbox since this is a destructive operation
+    LLNotificationsUtil::add("ClearInventoryThumbnailsWarning", LLSD(), LLSD(),
+                             [&](const LLSD & notif, const LLSD & resp)
+    {
+        S32 opt = LLNotificationsUtil::getSelectedOption(notif, resp);
+        if (opt == 0)
+        {
+            std::map<std::string, LLViewerInventoryItem*>::iterator item_iter = mItemNamesItems.begin();
+            while (item_iter != mItemNamesItems.end())
+            {
+                (*item_iter).second->setThumbnailUUID(LLUUID::null);
+
+                // This additional step (notifying AIS API) is required
+                // to make the changes persist outside of the local cache
+                const LLUUID item_id = (*item_iter).second->getUUID();
+                writeInventoryThumbnailID(item_id, LLUUID::null);
+
+                ++item_iter;
+            }
+
+            updateDisplayList();
+        }
+        else
+        {
+            LL_INFOS() << "Clearing on thumbnails was canceled" << LL_ENDL;
+        }
+    });
+}
+
+// Update the endabled state of some of the UI buttons based on what has
+// been recorded so far.  For example, if there are no valid item/texture pairs,
+// then the Write Thumbnails button is not enabled.
+void LLFloaterInventoryThumbnailsHelper::updateButtonStates()
+{
+    size_t found_count = 0;
+
+    std::map<std::string, LLViewerInventoryItem*>::iterator item_iter = mItemNamesItems.begin();
+    while (item_iter != mItemNamesItems.end())
+    {
+        std::string item_name = (*item_iter).first;
+
+        std::map<std::string, LLUUID>::iterator texture_iter = mTextureNamesIDs.find(item_name);
+        if (texture_iter != mTextureNamesIDs.end())
+        {
+            found_count++;
+        }
+
+        ++item_iter;
+    }
+
+    // the "Write Thumbnails" button is only enabled when there is at least one
+    // item with a matching texture ready to be written to the thumbnail field
+    if (found_count > 0)
+    {
+        mWriteThumbnailsBtn->setEnabled(true);
+    }
+    else
+    {
+        mWriteThumbnailsBtn->setEnabled(false);
+    }
+
+    // The "Log Missing Items" and "Clear Thumbnails" buttons are only enabled
+    // when there is at least 1 item that was pasted from inventory (doesn't need
+    // to have a matching texture for these operations)
+    if (mItemNamesItems.size() > 0)
+    {
+        mLogMissingThumbnailsBtn->setEnabled(true);
+        mClearThumbnailsBtn->setEnabled(true);
+    }
+    else
+    {
+        mLogMissingThumbnailsBtn->setEnabled(false);
+        mClearThumbnailsBtn->setEnabled(false);
+    }
+}
+
+// Helper function for writing a line to the log window. Currently the only additional
+// feature is that it scrolls to the bottom each time a line is written but it
+// is envisaged that other common actions will be added here eventually - E.G. write eavh
+// line to the Second Life log too for example.
+void LLFloaterInventoryThumbnailsHelper::writeToLog(std::string logline, bool prepend_newline)
+{
+    mOutputLog->appendText(logline, prepend_newline);
+
+    mOutputLog->setCursorAndScrollToEnd();
+}
diff --git a/indra/newview/llfloaterinventorythumbnailshelper.h b/indra/newview/llfloaterinventorythumbnailshelper.h
new file mode 100644
index 0000000000..b42a85d1a5
--- /dev/null
+++ b/indra/newview/llfloaterinventorythumbnailshelper.h
@@ -0,0 +1,82 @@
+/**
+ * @file llfloaterinventorythumbnailshelper.h
+ * @author Callum Prentice
+ * @brief Helper floater for bulk processing of inventory thumbnails tool
+ *
+ * $LicenseInfo:firstyear=2008&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2010, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_LLFLOATERINVENTORYTHUMBNAILSHELPER_H
+#define LL_LLFLOATERINVENTORYTHUMBNAILSHELPER_H
+
+#include "llfloater.h"
+class LLTextEditor;
+class LLScrollListCtrl;
+class LLViewerInventoryItem;
+class LLUUID;
+
+class LLFloaterInventoryThumbnailsHelper:
+    public LLFloater
+{
+        friend class LLFloaterReg;
+    private:
+        LLFloaterInventoryThumbnailsHelper(const LLSD& key);
+        BOOL postBuild() override;
+        ~LLFloaterInventoryThumbnailsHelper();
+
+        LLScrollListCtrl* mInventoryThumbnailsList;
+
+        LLTextEditor* mOutputLog;
+
+        LLUICtrl* mPasteItemsBtn;
+        void onPasteItems();
+
+        LLUICtrl* mPasteTexturesBtn;
+        void onPasteTextures();
+
+        LLUICtrl* mWriteThumbnailsBtn;
+        void onWriteThumbnails();
+
+        LLUICtrl* mLogMissingThumbnailsBtn;
+        void onLogMissingThumbnails();
+
+        LLUICtrl* mClearThumbnailsBtn;
+        void onClearThumbnails();
+
+        void recordInventoryItemEntry(LLViewerInventoryItem* item);
+        void recordTextureItemEntry(LLViewerInventoryItem* item);
+        void updateButtonStates();
+        void updateDisplayList();
+        void writeToLog(std::string logline, bool prepend_newline);
+
+        std::map<std::string, LLViewerInventoryItem*> mItemNamesItems;
+        std::map<std::string, LLUUID> mTextureNamesIDs;
+
+        enum EListColumnNum
+        {
+            NAME = 0,
+            EXISTING_TEXTURE = 1,
+            NEW_TEXTURE = 2
+        };
+};
+
+#endif // LL_LLFLOATERINVENTORYTHUMBNAILSHELPER_H
diff --git a/indra/newview/llfloaterworldmap.cpp b/indra/newview/llfloaterworldmap.cpp
index 8f3ec8af05..e509e8cef1 100755
--- a/indra/newview/llfloaterworldmap.cpp
+++ b/indra/newview/llfloaterworldmap.cpp
@@ -290,6 +290,7 @@ void* LLFloaterWorldMap::createWorldMapView(void* data)
 BOOL LLFloaterWorldMap::postBuild()
 {
     mMapView = dynamic_cast<LLWorldMapView*>(getChild<LLPanel>("objects_mapview"));
+    mMapView->setPan(0, 0, true);
 	
 	LLComboBox *avatar_combo = getChild<LLComboBox>("friend combo");
 	avatar_combo->selectFirstItem();
diff --git a/indra/newview/llinspecttexture.cpp b/indra/newview/llinspecttexture.cpp
index da4e3c0949..76e428b7d0 100644
--- a/indra/newview/llinspecttexture.cpp
+++ b/indra/newview/llinspecttexture.cpp
@@ -84,7 +84,10 @@ LLToolTip* LLInspectTextureUtil::createInventoryToolTip(LLToolTip::Params p)
                         }
                     }
 				}
-
+                if ((!p.message.isProvided() || p.message().empty())) 
+                {
+                    return NULL;
+                }
 				// No or more than one texture found => show default tooltip
 				return LLUICtrlFactory::create<LLToolTip>(p);
 			}
diff --git a/indra/newview/llinventorybridge.cpp b/indra/newview/llinventorybridge.cpp
index cb5316ddf4..de987d2dbd 100644
--- a/indra/newview/llinventorybridge.cpp
+++ b/indra/newview/llinventorybridge.cpp
@@ -2810,7 +2810,7 @@ BOOL LLFolderBridge::dragCategoryIntoFolder(LLInventoryCategory* inv_cat,
             is_movable = can_move_folder_to_marketplace(master_folder, dest_folder, inv_cat, tooltip_msg, bundle_size);
 		}
 
-		if (is_movable)
+		if (is_movable && !move_is_into_landmarks)
 		{
 			LLInventoryPanel* active_panel = LLInventoryPanel::getActiveInventoryPanel(FALSE);
 			is_movable = active_panel != NULL;
diff --git a/indra/newview/llinventoryfunctions.cpp b/indra/newview/llinventoryfunctions.cpp
index 4aeacae6ed..6662f14b12 100644
--- a/indra/newview/llinventoryfunctions.cpp
+++ b/indra/newview/llinventoryfunctions.cpp
@@ -462,6 +462,13 @@ void copy_inventory_category(LLInventoryModel* model,
 	gInventory.createNewCategory(parent_id, LLFolderType::FT_NONE, cat->getName(), func, cat->getThumbnailUUID());
 }
 
+void copy_cb(const LLUUID& dest_folder, const LLUUID& root_id)
+{
+    // Decrement the count in root_id since that one item won't be copied over
+    LLMarketplaceData::instance().decrementValidationWaiting(root_id);
+    update_folder_cb(dest_folder);
+};
+
 void copy_inventory_category_content(const LLUUID& new_cat_uuid, LLInventoryModel* model, LLViewerInventoryCategory* cat, const LLUUID& root_copy_id, bool move_no_copy_items)
 {
 	model->notifyObservers();
@@ -480,12 +487,21 @@ void copy_inventory_category_content(const LLUUID& new_cat_uuid, LLInventoryMode
 		LLMarketplaceData::instance().setValidationWaiting(root_id, count_descendants_items(cat->getUUID()));
 	}
 
+    LLPointer<LLInventoryCallback> cb;
+    if (root_copy_id.isNull())
+    {
+        cb = new LLBoostFuncInventoryCallback(boost::bind(copy_cb, new_cat_uuid, root_id));
+    }
+    else
+    {
+        cb = new LLBoostFuncInventoryCallback(boost::bind(update_folder_cb, new_cat_uuid));
+    }
+
 	// Copy all the items
 	LLInventoryModel::item_array_t item_array_copy = *item_array;
 	for (LLInventoryModel::item_array_t::iterator iter = item_array_copy.begin(); iter != item_array_copy.end(); iter++)
 	{
 		LLInventoryItem* item = *iter;
-		LLPointer<LLInventoryCallback> cb = new LLBoostFuncInventoryCallback(boost::bind(update_folder_cb, new_cat_uuid));
 
 		if (item->getIsLinkType())
 		{
@@ -500,8 +516,11 @@ void copy_inventory_category_content(const LLUUID& new_cat_uuid, LLInventoryMode
 				LLViewerInventoryItem * viewer_inv_item = (LLViewerInventoryItem *)item;
 				gInventory.changeItemParent(viewer_inv_item, new_cat_uuid, true);
 			}
-			// Decrement the count in root_id since that one item won't be copied over
-			LLMarketplaceData::instance().decrementValidationWaiting(root_id);
+            if (root_copy_id.isNull())
+            {
+                // Decrement the count in root_id since that one item won't be copied over
+                LLMarketplaceData::instance().decrementValidationWaiting(root_id);
+            }
 		}
 		else
 		{
diff --git a/indra/newview/llinventorygallery.cpp b/indra/newview/llinventorygallery.cpp
index 62180bb066..212f8b0446 100644
--- a/indra/newview/llinventorygallery.cpp
+++ b/indra/newview/llinventorygallery.cpp
@@ -2386,30 +2386,46 @@ BOOL LLInventoryGallery::handleDragAndDrop(S32 x, S32 y, MASK mask, BOOL drop,
     return handled;
 }
 
-void LLInventoryGallery::startDrag()
+void LLInventoryGallery::startDrag() 
 {
     std::vector<EDragAndDropType> types;
     uuid_vec_t ids;
+    LLToolDragAndDrop::ESource src = LLToolDragAndDrop::SOURCE_AGENT;
     for (LLUUID& selected_id : mSelectedItemIDs)
     {
         const LLInventoryItem* item = gInventory.getItem(selected_id);
         if (item)
         {
+            if (item->getPermissions().getOwner() == ALEXANDRIA_LINDEN_ID)
+            {
+                src = LLToolDragAndDrop::SOURCE_LIBRARY;
+            }
+
             EDragAndDropType type = LLViewerAssetType::lookupDragAndDropType(item->getType());
             types.push_back(type);
             ids.push_back(selected_id);
         }
 
         const LLViewerInventoryCategory* cat = gInventory.getCategory(selected_id);        
-        if (cat && gInventory.isObjectDescendentOf(selected_id, gInventory.getRootFolderID())
-            && !LLFolderType::lookupIsProtectedType((cat)->getPreferredType()))
+        if (cat)
         {
-            EDragAndDropType type = LLViewerAssetType::lookupDragAndDropType(cat->getType());
-            types.push_back(type);
-            ids.push_back(selected_id);
+            if (gInventory.isObjectDescendentOf(selected_id, gInventory.getLibraryRootFolderID()))
+            {
+                src = LLToolDragAndDrop::SOURCE_LIBRARY;
+                EDragAndDropType type = LLViewerAssetType::lookupDragAndDropType(cat->getType());
+                types.push_back(type);
+                ids.push_back(selected_id);
+            }
+            else if (gInventory.isObjectDescendentOf(selected_id, gInventory.getRootFolderID())
+                && !LLFolderType::lookupIsProtectedType((cat)->getPreferredType()))
+            {
+                EDragAndDropType type = LLViewerAssetType::lookupDragAndDropType(cat->getType());
+                types.push_back(type);
+                ids.push_back(selected_id);
+            }
         }
     }
-    LLToolDragAndDrop::getInstance()->beginMultiDrag(types, ids, LLToolDragAndDrop::SOURCE_AGENT);
+    LLToolDragAndDrop::getInstance()->beginMultiDrag(types, ids, src);
 }
 
 bool LLInventoryGallery::areViewsInitialized()
diff --git a/indra/newview/llinventoryobserver.cpp b/indra/newview/llinventoryobserver.cpp
index 281a8bc789..655bdfca6b 100644
--- a/indra/newview/llinventoryobserver.cpp
+++ b/indra/newview/llinventoryobserver.cpp
@@ -358,7 +358,6 @@ void LLInventoryFetchItemsObserver::startFetch()
                     {
                         // Start fetching whole folder since we need all items
                         LLInventoryModelBackgroundFetch::getInstance()->scheduleFolderFetch(folder.first, true);
-
                     }
                     else
                     {
diff --git a/indra/newview/llmachineid.cpp b/indra/newview/llmachineid.cpp
index 583742f970..8f03b13d2d 100644
--- a/indra/newview/llmachineid.cpp
+++ b/indra/newview/llmachineid.cpp
@@ -88,6 +88,7 @@ void LLWMIMethods::initCOMObjects()
     mHR = CoInitializeEx(0, COINIT_MULTITHREADED);
     if (FAILED(mHR))
     {
+        // if result S_FALSE, it's already initialized
         LL_DEBUGS("AppInit") << "Failed to initialize COM library. Error code = 0x" << std::hex << mHR << LL_ENDL;
         return;
     }
diff --git a/indra/newview/llmarketplacefunctions.cpp b/indra/newview/llmarketplacefunctions.cpp
index 8784f403cb..d27ee941a6 100644
--- a/indra/newview/llmarketplacefunctions.cpp
+++ b/indra/newview/llmarketplacefunctions.cpp
@@ -611,27 +611,17 @@ private:
     static void onIdleProcessQueue(void *userdata);
 
     // doesn't hold just marketplace related ids
-    static std::set<LLUUID> sAddQueue;
     static std::set<LLUUID> sStructureQueue;
     static bool sProcessingQueue;
 };
 
-std::set<LLUUID> LLMarketplaceInventoryObserver::sAddQueue;
 std::set<LLUUID> LLMarketplaceInventoryObserver::sStructureQueue;
 bool LLMarketplaceInventoryObserver::sProcessingQueue = false;
 
 void LLMarketplaceInventoryObserver::changed(U32 mask)
 {
-	if (mask & LLInventoryObserver::ADD && LLMarketplaceData::instance().hasValidationWaiting())
-	{
-        // When things are added to the marketplace, we might need to re-validate and fix the containing listings
-        // just add whole list even if it contains items and non-marketplace folders
-        const std::set<LLUUID>& changed_items = gInventory.getChangedIDs();
-        sAddQueue.insert(changed_items.begin(), changed_items.end());
-	}
-    
-	if (mask & (LLInventoryObserver::INTERNAL | LLInventoryObserver::STRUCTURE))
-	{
+    if (mask & (LLInventoryObserver::INTERNAL | LLInventoryObserver::STRUCTURE))
+    {
         // When things are changed in the inventory, this can trigger a host of changes in the marketplace listings folder:
         // * stock counts changing : no copy items coming in and out will change the stock count on folders
         // * version and listing folders : moving those might invalidate the marketplace data itself
@@ -641,7 +631,7 @@ void LLMarketplaceInventoryObserver::changed(U32 mask)
         sStructureQueue.insert(changed_items.begin(), changed_items.end());
 	}
 
-    if (!sProcessingQueue && (!sAddQueue.empty() || !sStructureQueue.empty()))
+    if (!sProcessingQueue && !sStructureQueue.empty())
     {
         gIdleCallbacks.addFunction(onIdleProcessQueue, NULL);
         // can do without sProcessingQueue, but it's usufull for simplicity and reliability
@@ -655,40 +645,6 @@ void LLMarketplaceInventoryObserver::onIdleProcessQueue(void *userdata)
     const U64 MAX_PROCESSING_TIME = 1000;
     U64 stop_time = start_time + MAX_PROCESSING_TIME;
 
-    if (!sAddQueue.empty())
-    {
-        // Make a copy of sAddQueue since decrementValidationWaiting
-        // can theoretically add more items
-        std::set<LLUUID> add_queue(sAddQueue);
-        sAddQueue.clear();
-
-        std::set<LLUUID>::const_iterator id_it = add_queue.begin();
-        std::set<LLUUID>::const_iterator id_end = add_queue.end();
-        // First, count the number of items in this list...
-        S32 count = 0;
-        for (; id_it != id_end; ++id_it)
-        {
-            LLInventoryObject* obj = gInventory.getObject(*id_it);
-            if (obj && (LLAssetType::AT_CATEGORY != obj->getType()))
-            {
-                count++;
-            }
-        }
-        // Then, decrement the folders of that amount
-        // Note that of all of those, only one folder will be a listing folder (if at all).
-        // The other will be ignored by the decrement method.
-        id_it = add_queue.begin();
-        for (; id_it != id_end; ++id_it)
-        {
-            LLInventoryObject* obj = gInventory.getObject(*id_it);
-            if (obj && (LLAssetType::AT_CATEGORY == obj->getType()))
-            {
-                // can trigger notifyObservers
-                LLMarketplaceData::instance().decrementValidationWaiting(obj->getUUID(), count);
-            }
-        }
-    }
-
     while (!sStructureQueue.empty() && LLTimer::getTotalTime() < stop_time)
     {
         std::set<LLUUID>::const_iterator id_it = sStructureQueue.begin();
@@ -722,7 +678,7 @@ void LLMarketplaceInventoryObserver::onIdleProcessQueue(void *userdata)
         sStructureQueue.erase(id_it);
     }
 
-    if (LLApp::isExiting() || (sAddQueue.empty() && sStructureQueue.empty()))
+    if (LLApp::isExiting() || sStructureQueue.empty())
     {
         // Nothing to do anymore
         gIdleCallbacks.deleteFunction(onIdleProcessQueue, NULL);
diff --git a/indra/newview/lloutfitgallery.cpp b/indra/newview/lloutfitgallery.cpp
index de988555c5..b26aabca4f 100644
--- a/indra/newview/lloutfitgallery.cpp
+++ b/indra/newview/lloutfitgallery.cpp
@@ -1155,22 +1155,13 @@ LLContextMenu* LLOutfitGalleryContextMenu::createMenu()
     registrar.add("Outfit.Delete", boost::bind(LLOutfitGallery::onRemoveOutfit, selected_id));
     registrar.add("Outfit.Create", boost::bind(&LLOutfitGalleryContextMenu::onCreate, this, _2));
     registrar.add("Outfit.Thumbnail", boost::bind(&LLOutfitGalleryContextMenu::onThumbnail, this, selected_id));
+    registrar.add("Outfit.Save", boost::bind(&LLOutfitGalleryContextMenu::onSave, this, selected_id));
     enable_registrar.add("Outfit.OnEnable", boost::bind(&LLOutfitGalleryContextMenu::onEnable, this, _2));
     enable_registrar.add("Outfit.OnVisible", boost::bind(&LLOutfitGalleryContextMenu::onVisible, this, _2));
     
     return createFromFile("menu_gallery_outfit_tab.xml");
 }
 
-void LLOutfitGalleryContextMenu::onThumbnail(const LLUUID& outfit_cat_id)
-{
-    LLOutfitGallery* gallery = dynamic_cast<LLOutfitGallery*>(mOutfitList);
-    if (gallery && outfit_cat_id.notNull())
-    {
-        LLSD data(outfit_cat_id);
-        LLFloaterReg::showInstance("change_item_thumbnail", data);
-    }
-}
-
 void LLOutfitGalleryContextMenu::onCreate(const LLSD& data)
 {
     LLWearableType::EType type = LLWearableType::getInstance()->typeNameToType(data.asString());
@@ -1205,7 +1196,6 @@ void LLOutfitGalleryGearMenu::onUpdateItemsVisibility()
     mMenu->setItemVisible("expand", FALSE);
     mMenu->setItemVisible("collapse", FALSE);
     mMenu->setItemVisible("thumbnail", have_selection);
-    mMenu->setItemVisible("sepatator3", TRUE);
     mMenu->setItemVisible("sort_folders_by_name", TRUE);
     LLOutfitListGearMenuBase::onUpdateItemsVisibility();
 }
diff --git a/indra/newview/lloutfitgallery.h b/indra/newview/lloutfitgallery.h
index 9915752962..b18151599f 100644
--- a/indra/newview/lloutfitgallery.h
+++ b/indra/newview/lloutfitgallery.h
@@ -195,17 +195,13 @@ public:
     
     friend class LLOutfitGallery;
     LLOutfitGalleryContextMenu(LLOutfitListBase* outfit_list)
-    : LLOutfitContextMenu(outfit_list),
-    mOutfitList(outfit_list){}
+    : LLOutfitContextMenu(outfit_list){}
 
 protected:
     /* virtual */ LLContextMenu* createMenu();
     bool onEnable(LLSD::String param);
     bool onVisible(LLSD::String param);
-    void onThumbnail(const LLUUID& outfit_cat_id);
     void onCreate(const LLSD& data);
-private:
-    LLOutfitListBase*	mOutfitList;
 };
 
 
diff --git a/indra/newview/lloutfitslist.cpp b/indra/newview/lloutfitslist.cpp
index 5c7792b0df..676444397f 100644
--- a/indra/newview/lloutfitslist.cpp
+++ b/indra/newview/lloutfitslist.cpp
@@ -37,6 +37,7 @@
 #include "llappearancemgr.h"
 #include "llfloaterreg.h"
 #include "llfloatersidepanelcontainer.h"
+#include "llinspecttexture.h"
 #include "llinventoryfunctions.h"
 #include "llinventorymodel.h"
 #include "llmenubutton.h"
@@ -62,7 +63,7 @@ bool LLOutfitTabNameComparator::compare(const LLAccordionCtrlTab* tab1, const LL
     return (LLStringUtil::compareDict(name1, name2) < 0);
 }
 
-struct outfit_accordion_tab_params : public LLInitParam::Block<outfit_accordion_tab_params, LLAccordionCtrlTab::Params>
+struct outfit_accordion_tab_params : public LLInitParam::Block<outfit_accordion_tab_params, LLOutfitAccordionCtrlTab::Params>
 {
 	Mandatory<LLWearableItemsList::Params> wearable_list;
 
@@ -144,7 +145,8 @@ void LLOutfitsList::updateAddedCategory(LLUUID cat_id)
     std::string name = cat->getName();
 
     outfit_accordion_tab_params tab_params(get_accordion_tab_params());
-    LLAccordionCtrlTab* tab = LLUICtrlFactory::create<LLAccordionCtrlTab>(tab_params);
+    tab_params.cat_id = cat_id;
+    LLOutfitAccordionCtrlTab *tab = LLUICtrlFactory::create<LLOutfitAccordionCtrlTab>(tab_params);
     if (!tab) return;
     LLWearableItemsList* wearable_list = LLUICtrlFactory::create<LLWearableItemsList>(tab_params.wearable_list);
     wearable_list->setShape(tab->getLocalRect());
@@ -1028,6 +1030,8 @@ LLContextMenu* LLOutfitContextMenu::createMenu()
     registrar.add("Outfit.Edit", boost::bind(editOutfit));
     registrar.add("Outfit.Rename", boost::bind(renameOutfit, selected_id));
     registrar.add("Outfit.Delete", boost::bind(&LLOutfitListBase::removeSelected, mOutfitList));
+    registrar.add("Outfit.Thumbnail", boost::bind(&LLOutfitContextMenu::onThumbnail, this, selected_id));
+    registrar.add("Outfit.Save", boost::bind(&LLOutfitContextMenu::onSave, this, selected_id));
 
     enable_registrar.add("Outfit.OnEnable", boost::bind(&LLOutfitContextMenu::onEnable, this, _2));
     enable_registrar.add("Outfit.OnVisible", boost::bind(&LLOutfitContextMenu::onVisible, this, _2));
@@ -1092,6 +1096,31 @@ void LLOutfitContextMenu::renameOutfit(const LLUUID& outfit_cat_id)
     LLAppearanceMgr::instance().renameOutfit(outfit_cat_id);
 }
 
+void LLOutfitContextMenu::onThumbnail(const LLUUID &outfit_cat_id)
+{
+    if (outfit_cat_id.notNull())
+    {
+        LLSD data(outfit_cat_id);
+        LLFloaterReg::showInstance("change_item_thumbnail", data);
+    }
+}
+
+void LLOutfitContextMenu::onSave(const LLUUID &outfit_cat_id)
+{
+    if (outfit_cat_id.notNull())
+    {
+        LLNotificationsUtil::add("ConfirmOverwriteOutfit", LLSD(), LLSD(),
+            [outfit_cat_id](const LLSD &notif, const LLSD &resp)
+        {
+            S32 opt = LLNotificationsUtil::getSelectedOption(notif, resp);
+            if (opt == 0)
+            {
+                LLAppearanceMgr::getInstance()->onOutfitFolderCreated(outfit_cat_id, true);
+            }
+        });
+    }
+}
+
 LLOutfitListGearMenuBase::LLOutfitListGearMenuBase(LLOutfitListBase* olist)
     :   mOutfitList(olist),
         mMenu(NULL)
@@ -1110,6 +1139,7 @@ LLOutfitListGearMenuBase::LLOutfitListGearMenuBase(LLOutfitListBase* olist)
     registrar.add("Gear.Expand", boost::bind(&LLOutfitListBase::onExpandAllFolders, mOutfitList));
 
     registrar.add("Gear.WearAdd", boost::bind(&LLOutfitListGearMenuBase::onAdd, this));
+    registrar.add("Gear.Save", boost::bind(&LLOutfitListGearMenuBase::onSave, this));
 
     registrar.add("Gear.Thumbnail", boost::bind(&LLOutfitListGearMenuBase::onThumbnail, this));
     registrar.add("Gear.SortByName", boost::bind(&LLOutfitListGearMenuBase::onChangeSortOrder, this));
@@ -1135,8 +1165,7 @@ void LLOutfitListGearMenuBase::onUpdateItemsVisibility()
     if (!mMenu) return;
 
     bool have_selection = getSelectedOutfitID().notNull();
-    mMenu->setItemVisible("sepatator1", have_selection);
-    mMenu->setItemVisible("sepatator2", have_selection);
+    mMenu->setItemVisible("wear_separator", have_selection);
     mMenu->arrangeAndClear(); // update menu height
 }
 
@@ -1181,6 +1210,20 @@ void LLOutfitListGearMenuBase::onAdd()
     }
 }
 
+void LLOutfitListGearMenuBase::onSave()
+{
+    const LLUUID &selected_id = getSelectedOutfitID();
+    LLNotificationsUtil::add("ConfirmOverwriteOutfit", LLSD(), LLSD(),
+        [selected_id](const LLSD &notif, const LLSD &resp)
+    {
+        S32 opt = LLNotificationsUtil::getSelectedOption(notif, resp);
+        if (opt == 0)
+        {
+            LLAppearanceMgr::getInstance()->onOutfitFolderCreated(selected_id, true);
+        }
+    });
+}
+
 void LLOutfitListGearMenuBase::onTakeOff()
 {
     // Take off selected outfit.
@@ -1234,15 +1277,6 @@ bool LLOutfitListGearMenuBase::onVisible(LLSD::String param)
         return false;
     }
 
-    // *TODO This condition leads to menu item behavior inconsistent with
-    // "Wear" button behavior and should be modified or removed.
-    bool is_worn = LLAppearanceMgr::instance().getBaseOutfitUUID() == selected_outfit_id;
-
-    if ("wear" == param)
-    {
-        return !is_worn;
-    }
-
     return true;
 }
 
@@ -1270,10 +1304,29 @@ void LLOutfitListGearMenu::onUpdateItemsVisibility()
     if (!mMenu) return;
     mMenu->setItemVisible("expand", TRUE);
     mMenu->setItemVisible("collapse", TRUE);
-    mMenu->setItemVisible("thumbnail", FALSE); // Never visible?
-    mMenu->setItemVisible("sepatator3", FALSE);
+    mMenu->setItemVisible("thumbnail", getSelectedOutfitID().notNull());
     mMenu->setItemVisible("sort_folders_by_name", FALSE);
     LLOutfitListGearMenuBase::onUpdateItemsVisibility();
 }
 
+BOOL LLOutfitAccordionCtrlTab::handleToolTip(S32 x, S32 y, MASK mask)
+{
+    if (y >= getLocalRect().getHeight() - getHeaderHeight()) 
+    {
+        LLSD params;
+        params["inv_type"] = LLInventoryType::IT_CATEGORY;
+        params["thumbnail_id"] = gInventory.getCategory(mFolderID)->getThumbnailUUID();
+        params["item_id"] = mFolderID;
+
+        LLToolTipMgr::instance().show(LLToolTip::Params()
+                                    .message(getToolTip())
+                                    .sticky_rect(calcScreenRect())
+                                    .delay_time(LLView::getTooltipTimeout())
+                                    .create_callback(boost::bind(&LLInspectTextureUtil::createInventoryToolTip, _1))
+                                    .create_params(params));
+        return TRUE;
+    }
+
+    return LLAccordionCtrlTab::handleToolTip(x, y, mask);
+}
 // EOF
diff --git a/indra/newview/lloutfitslist.h b/indra/newview/lloutfitslist.h
index 66b3165169..6eeccddb07 100644
--- a/indra/newview/lloutfitslist.h
+++ b/indra/newview/lloutfitslist.h
@@ -31,6 +31,7 @@
 #include "llpanel.h"
 
 // newview
+#include "llaccordionctrltab.h"
 #include "llinventorymodel.h"
 #include "lllistcontextmenu.h"
 #include "llpanelappearancetab.h"
@@ -147,6 +148,9 @@ protected:
 
     static void renameOutfit(const LLUUID& outfit_cat_id);
 
+    void onThumbnail(const LLUUID &outfit_cat_id);
+    void onSave(const LLUUID &outfit_cat_id);
+
 private:
     LLOutfitListBase*	mOutfitList;
 };
@@ -178,6 +182,7 @@ private:
     void onAdd();
     void onTakeOff();
     void onRename();
+    void onSave();
     void onCreate(const LLSD& data);
     bool onEnable(LLSD::String param);
     bool onVisible(LLSD::String param);
@@ -193,7 +198,27 @@ protected:
     /*virtual*/ void onUpdateItemsVisibility();
 };
 
-/**
+class LLOutfitAccordionCtrlTab : public LLAccordionCtrlTab
+{
+public:
+    struct Params : public LLInitParam::Block<Params, LLAccordionCtrlTab::Params>
+    {
+        Optional<LLUUID> cat_id;
+        Params() : cat_id("cat_id") {}
+    };
+
+    virtual BOOL handleToolTip(S32 x, S32 y, MASK mask);
+
+ protected:
+    LLOutfitAccordionCtrlTab(const LLOutfitAccordionCtrlTab::Params &p) 
+        : LLAccordionCtrlTab(p), 
+          mFolderID(p.cat_id)
+    {}
+    friend class LLUICtrlFactory;
+
+    LLUUID mFolderID;
+};
+  /**
  * @class LLOutfitsList
  *
  * A list of agents's outfits from "My Outfits" inventory category
diff --git a/indra/newview/llpanelteleporthistory.cpp b/indra/newview/llpanelteleporthistory.cpp
index b938b30479..3ed444a5af 100644
--- a/indra/newview/llpanelteleporthistory.cpp
+++ b/indra/newview/llpanelteleporthistory.cpp
@@ -1067,6 +1067,12 @@ void LLTeleportHistoryPanel::onGearMenuAction(const LLSD& userdata)
         LLLandmarkActions::getSLURLfromPosGlobal(globalPos,
             boost::bind(&LLTeleportHistoryPanel::gotSLURLCallback, _1));
     }
+    else if ("remove" == command_name)
+    {
+        LLTeleportHistoryStorage::getInstance()->removeItem(index);
+        LLTeleportHistoryStorage::getInstance()->save();
+        showTeleportHistory();
+    }
 }
 
 bool LLTeleportHistoryPanel::isActionEnabled(const LLSD& userdata) const
@@ -1121,7 +1127,8 @@ bool LLTeleportHistoryPanel::isActionEnabled(const LLSD& userdata) const
     if ("teleport" == command_name
         || "view" == command_name
         || "show_on_map" == command_name
-        || "copy_slurl" == command_name)
+        || "copy_slurl" == command_name
+        || "remove" == command_name)
     {
         if (!mLastSelectedFlatlList)
         {
diff --git a/indra/newview/llperfstats.cpp b/indra/newview/llperfstats.cpp
index 64e66d520b..8718f7e7b0 100644
--- a/indra/newview/llperfstats.cpp
+++ b/indra/newview/llperfstats.cpp
@@ -69,7 +69,7 @@ namespace LLPerfStats
     {
         assert_main_thread();
         // these following variables are proxies for pipeline statics we do not need a two way update (no llviewercontrol handler)
-        if( tuningFlag & NonImpostors ){ gSavedSettings.setU32("IndirectMaxNonImpostors", nonImpostors); };
+        if( tuningFlag & NonImpostors ){ gSavedSettings.setU32("RenderAvatarMaxNonImpostors", nonImpostors); };
         if( tuningFlag & ReflectionDetail ){ gSavedSettings.setS32("RenderReflectionDetail", reflectionDetail); };
         if( tuningFlag & FarClip ){ gSavedSettings.setF32("RenderFarClip", farClip); };
         if( tuningFlag & UserMinDrawDistance ){ gSavedSettings.setF32("AutoTuneRenderFarClipMin", userMinDrawDistance); };
@@ -378,7 +378,7 @@ namespace LLPerfStats
             auto count = countNearbyAvatars(std::min(LLPipeline::RenderFarClip, tunables.userImpostorDistance));
             if( count != tunables.nonImpostors )
             {
-                tunables.updateNonImposters( (count < LLVOAvatar::NON_IMPOSTORS_MAX_SLIDER)?count : LLVOAvatar::NON_IMPOSTORS_MAX_SLIDER );
+                tunables.updateNonImposters( (count < LLVOAvatar::NON_IMPOSTORS_MAX_SLIDER)?count : 0 );
                 LL_DEBUGS("AutoTune") << "There are " << count << "avatars within " << std::min(LLPipeline::RenderFarClip, tunables.userImpostorDistance) << "m of the camera" << LL_ENDL;
             }
         }
diff --git a/indra/newview/llplacesinventorypanel.cpp b/indra/newview/llplacesinventorypanel.cpp
index 1c14acd843..f3455bb4f0 100644
--- a/indra/newview/llplacesinventorypanel.cpp
+++ b/indra/newview/llplacesinventorypanel.cpp
@@ -120,3 +120,13 @@ S32	LLPlacesInventoryPanel::notify(const LLSD& info)
 	}
 	return 0;
 }
+
+BOOL LLPlacesInventoryPanel::handleDragAndDrop(S32 x, S32 y, MASK mask, BOOL drop, EDragAndDropType cargo_type, void *cargo_data,
+                                                      EAcceptance *accept, std::string &tooltip_msg)
+{
+    if (mAcceptsDragAndDrop) 
+    {
+        return LLInventoryPanel::handleDragAndDrop(x, y, mask, drop, cargo_type, cargo_data, accept, tooltip_msg);
+    }
+    return FALSE;
+}
diff --git a/indra/newview/llplacesinventorypanel.h b/indra/newview/llplacesinventorypanel.h
index 3c27964ec5..81b623b045 100644
--- a/indra/newview/llplacesinventorypanel.h
+++ b/indra/newview/llplacesinventorypanel.h
@@ -47,11 +47,14 @@ public:
 	LLPlacesInventoryPanel(const Params& p);
 	~LLPlacesInventoryPanel();
 
-    LLFolderView * createFolderRoot(LLUUID root_id );
+    LLFolderView * createFolderRoot(LLUUID root_id ) override;
 	void saveFolderState();
 	void restoreFolderState();
 
-	virtual S32	notify(const LLSD& info) ;
+	virtual S32	notify(const LLSD& info) override;
+
+    BOOL handleDragAndDrop(S32 x, S32 y, MASK mask, BOOL drop, EDragAndDropType cargo_type, void *cargo_data,
+                            EAcceptance *accept, std::string &tooltip_msg) override;
 
 private:
 	LLSaveFolderState*			mSavedFolderState;
diff --git a/indra/newview/llviewerfloaterreg.cpp b/indra/newview/llviewerfloaterreg.cpp
index 6da0e9d695..19e2655bf9 100644
--- a/indra/newview/llviewerfloaterreg.cpp
+++ b/indra/newview/llviewerfloaterreg.cpp
@@ -86,6 +86,7 @@
 #include "llfloaterimsession.h"
 #include "llfloaterinspect.h"
 #include "llfloaterinventorysettings.h"
+#include "llfloaterinventorythumbnailshelper.h"
 #include "llfloaterjoystick.h"
 #include "llfloaterlagmeter.h"
 #include "llfloaterland.h"
@@ -243,6 +244,7 @@ public:
                 "group_picker",
                 "hud",
                 "incoming_call",
+                "inventory_thumbnails_helper",
                 "linkreplace",
                 "mem_leaking",
                 "marketplace_validation",
@@ -329,7 +331,7 @@ void LLViewerFloaterReg::registerFloaters()
 	LLFloaterReg::add("build", "floater_tools.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterTools>);
 	LLFloaterReg::add("build_options", "floater_build_options.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterBuildOptions>);
 	LLFloaterReg::add("bumps", "floater_bumps.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterBump>);
-
+    
 	LLFloaterReg::add("camera", "floater_camera.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterCamera>);
 	LLFloaterReg::add("camera_presets", "floater_camera_presets.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterCameraPresets>);
 	LLFloaterReg::add("chat_voice", "floater_voice_chat_volume.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterChatVoiceVolume>);
@@ -376,6 +378,7 @@ void LLViewerFloaterReg::registerFloaters()
 	LLFloaterReg::add("incoming_call", "floater_incoming_call.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLIncomingCallDialog>);
 	LLFloaterReg::add("inventory", "floater_my_inventory.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterSidePanelContainer>);
 	LLFloaterReg::add("inspect", "floater_inspect.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterInspect>);
+    LLFloaterReg::add("inventory_thumbnails_helper", "floater_inventory_thumbnails_helper.xml", (LLFloaterBuildFunc) &LLFloaterReg::build<LLFloaterInventoryThumbnailsHelper>);
 	LLFloaterReg::add("item_properties", "floater_item_properties.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterItemProperties>);
     LLFloaterReg::add("task_properties", "floater_task_properties.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterItemProperties>);
     LLFloaterReg::add("inventory_settings", "floater_inventory_settings.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterInventorySettings>);
diff --git a/indra/newview/llviewermessage.cpp b/indra/newview/llviewermessage.cpp
index ada898b98c..55e43352bc 100644
--- a/indra/newview/llviewermessage.cpp
+++ b/indra/newview/llviewermessage.cpp
@@ -4158,6 +4158,12 @@ void process_avatar_animation(LLMessageSystem *mesgsys, void **user_data)
 					LLVOAvatar::AnimSourceIterator anim_it = avatarp->mAnimationSources.find(object_id);
 					for (;anim_it != avatarp->mAnimationSources.end(); ++anim_it)
 					{
+						if (anim_it->first != object_id)
+						{
+							// elements with the same key are always contiguous, bail if we went past the
+							// end of this object's animations
+							break;
+						}
 						if (anim_it->second == animation_id)
 						{
 							anim_found = TRUE;
diff --git a/indra/newview/llviewerobjectlist.cpp b/indra/newview/llviewerobjectlist.cpp
index 5bc7523be1..a53bd982d4 100644
--- a/indra/newview/llviewerobjectlist.cpp
+++ b/indra/newview/llviewerobjectlist.cpp
@@ -2043,6 +2043,7 @@ void LLViewerObjectList::findOrphans(LLViewerObject* objectp, U32 ip, U32 port)
 			{
 				LL_WARNS() << objectp->mID << " has self as parent, skipping!" 
 					<< LL_ENDL;
+                ++iter;
 				continue;
 			}
 
diff --git a/indra/newview/llvoavatarself.cpp b/indra/newview/llvoavatarself.cpp
index 6e5b387b36..34efb39848 100644
--- a/indra/newview/llvoavatarself.cpp
+++ b/indra/newview/llvoavatarself.cpp
@@ -834,7 +834,11 @@ void LLVOAvatarSelf::stopMotionFromSource(const LLUUID& source_id)
 	for (AnimSourceIterator motion_it = mAnimationSources.find(source_id); motion_it != mAnimationSources.end(); )
 	{
 		gAgent.sendAnimationRequest(motion_it->second, ANIM_REQUEST_STOP);
-		mAnimationSources.erase(motion_it++);
+		mAnimationSources.erase(motion_it);
+		// Must find() after each erase() to deal with potential iterator invalidation
+		// This also ensures that we don't go past the end of this source's animations
+		// into those of another source.
+		motion_it = mAnimationSources.find(source_id);
 	}
 
 
diff --git a/indra/newview/skins/default/xui/en/floater_inventory_thumbnails_helper.xml b/indra/newview/skins/default/xui/en/floater_inventory_thumbnails_helper.xml
new file mode 100644
index 0000000000..aa3500bac2
--- /dev/null
+++ b/indra/newview/skins/default/xui/en/floater_inventory_thumbnails_helper.xml
@@ -0,0 +1,99 @@
+<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
+<floater
+  legacy_header_height="18"
+  can_resize="false"
+  height="600"
+  layout="topleft"
+  min_height="175"
+  min_width="500"
+  name="contents"
+  help_topic="contents"
+  title="Inventory Thumbnails Helper"
+  width="800">
+    <scroll_list
+       top="20"
+       height="350"
+       draw_stripes="true"
+       draw_heading="true"
+       follows="all"
+       layout="topleft"
+       left="8"
+       multi_select="true"
+       name="inventory_thumbnails_list"
+       right="-8"
+       tool_tip="Paste items from your inventory">
+        <scroll_list.columns
+             dynamic_width="true"
+             label="Inventory Item"
+             name="item_name"
+             relative_width="0.4" />
+        <scroll_list.columns
+             dynamic_width="true"
+             label="Existing Texture"
+             name="existing_texture"
+             relative_width="0.3" />
+        <scroll_list.columns
+             dynamic_width="true"
+             label="New Texture"
+             name="new_texture"
+             relative_width="0.3" />
+    </scroll_list>
+    <text_editor
+      top="375"
+      height="140"
+      follows="all"
+      left="8"
+      right="-8"
+      name="output_log"
+      font="Monospace"
+      text_color="0.1 0.5 0.1 1.0"
+      width="480">
+    </text_editor>
+    <button
+      follows="left|bottom"
+      height="20"
+      label="Paste items from Inventory"
+      layout="topleft"
+      left="10"
+      name="paste_items_btn"
+      bottom="-60"
+      width="235" />
+    <button
+      follows="left|bottom"
+      height="20"
+      label="Paste textures from Inventory"
+      layout="topleft"
+      left_delta="0"
+      name="paste_textures_btn"
+      top_delta="26	"
+      width="235" />
+    <button
+      follows="left|bottom"
+      height="20"
+      label="Write Thumbnails"
+      layout="topleft"
+      left_delta="0"
+      name="write_thumbnails_btn"
+      top_delta="26	"
+      width="235" />
+    <button
+      follows="left|bottom"
+      height="20"
+      label="Log items with no thumbnail"
+      layout="bottomleft"
+      right="-10"
+      name="log_missing_thumbnails_btn"
+      bottom="60"
+      width="235" />
+    <button
+      follows="left|bottom"
+      height="20"
+      label="Clear thumbnails from pasted items"
+      layout="bottomleft"
+      right="-10"
+      name="clear_thumbnails_btn"
+      top_delta="26"
+      width="235" />
+
+
+</floater>
\ No newline at end of file
diff --git a/indra/newview/skins/default/xui/en/menu_gallery_inventory.xml b/indra/newview/skins/default/xui/en/menu_gallery_inventory.xml
index d82c453e5f..8cf0479b27 100644
--- a/indra/newview/skins/default/xui/en/menu_gallery_inventory.xml
+++ b/indra/newview/skins/default/xui/en/menu_gallery_inventory.xml
@@ -35,7 +35,7 @@
      layout="topleft"
      name="Folder Wearables Separator" />
     <menu_item_call
-     label="Replace Current Outfit"
+     label="Replace current outfit"
      layout="topleft"
      name="Replace Outfit">
         <menu_item_call.on_click
@@ -43,7 +43,7 @@
          parameter="replaceoutfit" />
     </menu_item_call>
     <menu_item_call
-     label="Add To Current Outfit"
+     label="Add folder items"
      layout="topleft"
      name="Add To Outfit">
         <menu_item_call.on_click
@@ -51,7 +51,7 @@
          parameter="addtooutfit" />
     </menu_item_call>
     <menu_item_call
-     label="Remove From Current Outfit"
+     label="Take off folder items"
      layout="topleft"
      name="Remove From Outfit">
         <menu_item_call.on_click
diff --git a/indra/newview/skins/default/xui/en/menu_gallery_outfit_tab.xml b/indra/newview/skins/default/xui/en/menu_gallery_outfit_tab.xml
index 0ca505dd5d..c93a92b2b7 100755
--- a/indra/newview/skins/default/xui/en/menu_gallery_outfit_tab.xml
+++ b/indra/newview/skins/default/xui/en/menu_gallery_outfit_tab.xml
@@ -3,7 +3,7 @@
     layout="topleft"
     name="Outfit">
     <menu_item_call
-        label="Wear - Replace Current Outfit"
+        label="Replace current outfit"
         layout="topleft"
         name="wear_replace">
         <on_click
@@ -16,7 +16,7 @@
         parameter="wear_replace" />
     </menu_item_call>
     <menu_item_call
-        label="Wear - Add to Current Outfit"
+        label="Add outfit items"
         layout="topleft"
         name="wear_add">
         <on_click
@@ -29,7 +29,7 @@
         parameter="wear_add" />
     </menu_item_call>
     <menu_item_call
-        label="Take Off - Remove from Current Outfit"
+        label="Take off outfit items"
         layout="topleft"
         name="take_off">
         <on_click
@@ -41,17 +41,60 @@
         function="Outfit.OnVisible"
         parameter="take_off" />
     </menu_item_call>
+    <menu_item_separator/>
     <menu_item_call
-     label="Image..."
-     layout="topleft"
-     name="thumbnail">
+        label="Image..."
+        layout="topleft"
+        name="thumbnail">
+        <on_click
+        function="Outfit.Thumbnail" />
+    </menu_item_call>
+    <menu_item_call
+        label="Edit outfit"
+        layout="topleft"
+        name="edit">
+        <on_click
+        function="Outfit.Edit" />
+        <on_visible
+        function="Outfit.OnVisible"
+        parameter="edit" />
+    </menu_item_call>
+    <menu_item_call
+        label="Rename outfit"
+        layout="topleft"
+        name="rename">
+        <on_click
+        function="Outfit.Rename" />
+        <on_enable
+        function="Outfit.OnEnable"
+        parameter="rename" />
+    </menu_item_call>
+    <menu_item_call
+        label="Save to this outfit"
+        layout="topleft"
+        name="save">
+        <on_click
+         function="Outfit.Save" />
+    </menu_item_call>
+    <menu_item_separator>
+        <on_visible
+        function="Outfit.OnVisible"
+        parameter="delete" />
+    </menu_item_separator>
+    <menu_item_call
+        label="Delete outfit"
+        layout="topleft"
+        name="delete">
         <on_click
-         function="Outfit.Thumbnail" />
+        function="Outfit.Delete" />
+        <on_visible
+        function="Outfit.OnVisible"
+        parameter="delete" />
     </menu_item_call>
-    <menu_item_separator name="sepatator1" />
+    <menu_item_separator/>
     <menu
         height="175"
-        label="New Clothes"
+        label="New clothes"
         layout="topleft"
         left_delta="0"
         mouse_opaque="false"
@@ -157,7 +200,7 @@
     </menu>
     <menu
         height="85"
-        label="New Body Parts"
+        label="New body parts"
         layout="topleft"
         left_delta="0"
         mouse_opaque="false"
@@ -197,35 +240,4 @@
             parameter="eyes" />
         </menu_item_call>
     </menu>
-    <menu_item_separator name="sepatator2" />
-    <menu_item_call
-        label="Edit Outfit"
-        layout="topleft"
-        name="edit">
-        <on_click
-        function="Outfit.Edit" />
-        <on_visible
-        function="Outfit.OnVisible"
-        parameter="edit" />
-    </menu_item_call>
-    <menu_item_call
-        label="Rename Outfit"
-        layout="topleft"
-        name="rename">
-        <on_click
-        function="Outfit.Rename" />
-        <on_enable
-        function="Outfit.OnEnable"
-        parameter="rename" />
-    </menu_item_call>
-    <menu_item_call
-        label="Delete Outfit"
-        layout="topleft"
-        name="delete">
-        <on_click
-        function="Outfit.Delete" />
-        <on_visible
-        function="Outfit.OnVisible"
-        parameter="delete" />
-    </menu_item_call>
 </context_menu>
diff --git a/indra/newview/skins/default/xui/en/menu_inventory.xml b/indra/newview/skins/default/xui/en/menu_inventory.xml
index 3a8f360e2d..71f450baac 100644
--- a/indra/newview/skins/default/xui/en/menu_inventory.xml
+++ b/indra/newview/skins/default/xui/en/menu_inventory.xml
@@ -264,7 +264,7 @@
      layout="topleft"
      name="Folder Wearables Separator" />
     <menu_item_call
-     label="Replace Current Outfit"
+     label="Replace current outfit"
      layout="topleft"
      name="Replace Outfit">
         <menu_item_call.on_click
@@ -272,7 +272,7 @@
          parameter="replaceoutfit" />
     </menu_item_call>
     <menu_item_call
-     label="Add To Current Outfit"
+     label="Add folder items"
      layout="topleft"
      name="Add To Outfit">
         <menu_item_call.on_click
@@ -280,7 +280,7 @@
          parameter="addtooutfit" />
     </menu_item_call>
     <menu_item_call
-     label="Remove From Current Outfit"
+     label="Take off folder items"
      layout="topleft"
      name="Remove From Outfit">
         <menu_item_call.on_click
diff --git a/indra/newview/skins/default/xui/en/menu_outfit_gear.xml b/indra/newview/skins/default/xui/en/menu_outfit_gear.xml
index e216962d12..e7a453766b 100644
--- a/indra/newview/skins/default/xui/en/menu_outfit_gear.xml
+++ b/indra/newview/skins/default/xui/en/menu_outfit_gear.xml
@@ -4,7 +4,7 @@
  visible="false"
  name="Gear Outfit">
     <menu_item_call
-     label="Wear - Replace Current Outfit"
+     label="Replace current outfit"
      layout="topleft"
      name="wear">
         <on_click
@@ -17,7 +17,7 @@
          parameter="wear" />
     </menu_item_call>
     <menu_item_call
-     label="Wear - Add to Current Outfit"
+     label="Add outfit items"
      layout="topleft"
      name="wear_add">
         <on_click
@@ -25,9 +25,11 @@
         <on_enable
          function="Gear.OnEnable"
          parameter="wear_add" />
+        <on_visible
+         function="Gear.OnVisible"/>
     </menu_item_call>
     <menu_item_call
-     label="Take Off - Remove from Current Outfit"
+     label="Take off outfit items"
      layout="topleft"
      name="take_off">
         <on_click
@@ -39,19 +41,88 @@
          function="Gear.OnVisible"
          parameter="take_off" />
     </menu_item_call>
+    <menu_item_separator name="wear_separator" />
     <menu_item_call
      label="Image..."
      layout="topleft"
      name="thumbnail">
+       <on_click
+        function="Gear.Thumbnail" />
+    </menu_item_call>
+    <menu_item_call
+     label="Rename outfit"
+     layout="topleft"
+     name="rename">
+        <on_click
+         function="Gear.Rename" />
+        <on_enable
+         function="Gear.OnEnable"
+         parameter="rename" />
+        <on_visible
+         function="Gear.OnVisible"
+         parameter="rename" />
+    </menu_item_call>
+    <menu_item_call
+     label="Save to this outfit"
+     layout="topleft"
+     name="save">
+        <on_click
+         function="Gear.Save" />
+        <on_visible
+         function="Gear.OnVisible"/>
+    </menu_item_call>
+    <menu_item_separator>
+        <on_visible
+        function="Gear.OnVisible"
+        parameter="delete" />
+    </menu_item_separator>
+    <menu_item_call
+     label="Delete outfit"
+     layout="topleft"
+     name="delete_outfit">
+        <on_click
+         function="Gear.Delete" />
+        <on_enable
+         function="Gear.OnEnable"
+         parameter="delete" />
+        <on_visible
+         function="Gear.OnVisible"
+         parameter="delete" />
+    </menu_item_call>
+    <menu_item_separator>
+        <on_visible
+         function="Gear.OnVisible"/>
+    </menu_item_separator>
+    <menu_item_check
+     label="Sort folders always by name"
+     layout="topleft"
+     name="sort_folders_by_name">
+        <on_click
+         function="Gear.SortByName" />
+        <on_check
+         function="CheckControl"
+         parameter="OutfitGallerySortByName" />
+    </menu_item_check>
+        <menu_item_call
+     label="Expand all folders"
+     layout="topleft"
+     name="expand">
+        <on_click
+         function="Gear.Expand" />
+    </menu_item_call>
+    <menu_item_call
+     label="Collapse all folders"
+     layout="topleft"
+     name="collapse">
         <on_click
-         function="Gear.Thumbnail" />
+         function="Gear.Collapse" />
     </menu_item_call>
-  <menu_item_separator name="sepatator1" />
+  <menu_item_separator/>
             <!-- copied (with minor modifications) from menu_inventory_add.xml -->
             <!--  *TODO: generate dynamically? -->
             <menu
              height="175"
-             label="New Clothes"
+             label="New clothes"
              layout="topleft"
              left_delta="0"
              mouse_opaque="false"
@@ -165,7 +236,7 @@
             </menu>
             <menu
              height="85"
-             label="New Body Parts"
+             label="New body parts"
              layout="topleft"
              left_delta="0"
              mouse_opaque="false"
@@ -206,57 +277,4 @@
                 </menu_item_call>
             </menu>
             <!-- copied from menu_inventory_add.xml -->
-
-    <menu_item_separator name="sepatator2" />
-    <menu_item_call
-     label="Expand all folders"
-     layout="topleft"
-     name="expand">
-        <on_click
-         function="Gear.Expand" />
-    </menu_item_call>
-    <menu_item_call
-     label="Collapse all folders"
-     layout="topleft"
-     name="collapse">
-        <on_click
-         function="Gear.Collapse" />
-    </menu_item_call>
-    <menu_item_call
-     label="Rename Outfit"
-     layout="topleft"
-     name="rename">
-        <on_click
-         function="Gear.Rename" />
-        <on_enable
-         function="Gear.OnEnable"
-         parameter="rename" />
-        <on_visible
-         function="Gear.OnVisible"
-         parameter="rename" />
-    </menu_item_call>
-    <menu_item_call
-     label="Delete Outfit"
-     layout="topleft"
-     name="delete_outfit">
-        <on_click
-         function="Gear.Delete" />
-        <on_enable
-         function="Gear.OnEnable"
-         parameter="delete" />
-        <on_visible
-         function="Gear.OnVisible"
-         parameter="delete" />
-    </menu_item_call>
-    <menu_item_separator name="sepatator3" />
-    <menu_item_check
-     label="Sort Folders Always by Name"
-     layout="topleft"
-     name="sort_folders_by_name">
-        <on_click
-         function="Gear.SortByName" />
-        <on_check
-         function="CheckControl"
-         parameter="OutfitGallerySortByName" />
-    </menu_item_check>
 </toggleable_menu>
diff --git a/indra/newview/skins/default/xui/en/menu_outfit_tab.xml b/indra/newview/skins/default/xui/en/menu_outfit_tab.xml
index 8c8bb29baf..522e41df42 100644
--- a/indra/newview/skins/default/xui/en/menu_outfit_tab.xml
+++ b/indra/newview/skins/default/xui/en/menu_outfit_tab.xml
@@ -3,7 +3,7 @@
  layout="topleft"
  name="Outfit">
     <menu_item_call
-     label="Wear - Replace Current Outfit"
+     label="Replace current outfit"
      layout="topleft"
      name="wear_replace">
         <on_click
@@ -16,7 +16,7 @@
          parameter="wear_replace" />
     </menu_item_call>
     <menu_item_call
-     label="Wear - Add to Current Outfit"
+     label="Add outfit items"
      layout="topleft"
      name="wear_add">
         <on_click
@@ -29,7 +29,7 @@
          parameter="wear_add" />
     </menu_item_call>
     <menu_item_call
-     label="Take Off - Remove from Current Outfit"
+     label="Take off outfit items"
      layout="topleft"
      name="take_off">
         <on_click
@@ -41,19 +41,26 @@
          function="Outfit.OnVisible"
          parameter="take_off" />
     </menu_item_call>
+    <menu_item_separator />
     <menu_item_call
-     label="Edit Outfit"
-     layout="topleft"
-     name="edit">
+        label="Image..."
+        layout="topleft"
+        name="thumbnail">
+        <on_click
+        function="Outfit.Thumbnail" />
+    </menu_item_call>
+    <menu_item_call
+        label="Edit outfit"
+        layout="topleft"
+        name="edit">
         <on_click
          function="Outfit.Edit" />
         <on_visible
          function="Outfit.OnVisible"
          parameter="edit" />
     </menu_item_call>
-    <menu_item_separator />
     <menu_item_call
-     label="Rename Outfit"
+     label="Rename outfit"
      layout="topleft"
      name="rename">
         <on_click
@@ -63,7 +70,19 @@
          parameter="rename" />
     </menu_item_call>
     <menu_item_call
-     label="Delete Outfit"
+     label="Save to this outfit"
+     layout="topleft"
+     name="save">
+        <on_click
+         function="Outfit.Save" />
+    </menu_item_call>
+    <menu_item_separator>
+        <on_visible
+        function="Outfit.OnVisible"
+        parameter="delete" />
+    </menu_item_separator>
+    <menu_item_call
+     label="Delete outfit"
      layout="topleft"
      name="delete">
         <on_click
diff --git a/indra/newview/skins/default/xui/en/menu_teleport_history_item.xml b/indra/newview/skins/default/xui/en/menu_teleport_history_item.xml
index 153e5a70a9..9bbfdd4291 100644
--- a/indra/newview/skins/default/xui/en/menu_teleport_history_item.xml
+++ b/indra/newview/skins/default/xui/en/menu_teleport_history_item.xml
@@ -49,4 +49,17 @@
          function="TeleportHistory.GearMenu.Enable"
          parameter="copy_slurl" />
     </menu_item_call>
+    <menu_item_separator
+     layout="topleft" />
+    <menu_item_call
+     label="Remove from history"
+     layout="topleft"
+     name="remove_from_history">
+        <on_click
+         function="TeleportHistory.GearMenu.Action"
+         parameter="remove" />
+        <on_enable
+         function="TeleportHistory.GearMenu.Enable"
+         parameter="remove" />
+    </menu_item_call>
 </toggleable_menu>
diff --git a/indra/newview/skins/default/xui/en/menu_viewer.xml b/indra/newview/skins/default/xui/en/menu_viewer.xml
index 0bfdead6e7..3a671420be 100644
--- a/indra/newview/skins/default/xui/en/menu_viewer.xml
+++ b/indra/newview/skins/default/xui/en/menu_viewer.xml
@@ -3520,6 +3520,21 @@ function="World.EnvPreset"
              function="Advanced.WebContentTest"
              parameter="http://duckduckgo.com"/>
           </menu_item_call>
+            <menu_item_call
+             label="Inventory Thumbnails Helper"
+             name="Inventory Thumbnails Helper"
+				shortcut="control|alt|shift|X">
+                <menu_item_call.on_click
+                 function="Floater.Show"
+                 parameter="inventory_thumbnails_helper" />
+            </menu_item_call>
+            <menu_item_call
+           label="FB Connect Test"
+           name="FB Connect Test">
+            <menu_item_call.on_click
+             function="Advanced.WebContentTest"
+             parameter="https://cryptic-ridge-1632.herokuapp.com/"/>
+          </menu_item_call>
           <menu_item_call
              label="Dump SelectMgr"
              name="Dump SelectMgr">
diff --git a/indra/newview/skins/default/xui/en/notifications.xml b/indra/newview/skins/default/xui/en/notifications.xml
index d1838fc7ef..ca93ca71ef 100644
--- a/indra/newview/skins/default/xui/en/notifications.xml
+++ b/indra/newview/skins/default/xui/en/notifications.xml
@@ -12248,6 +12248,50 @@ Would you like to save them first?
        notext="No"
        yestext="Yes"/>
   </notification>
+
+  <notification
+   icon="alertmodal.tga"
+   name="ConfirmOverwriteOutfit"
+   type="alertmodal">
+      <unique/>
+This will replace the items in the
+selected outfit with the items you
+are wearing now.
+      <tag>confirm</tag>
+      <usetemplate
+       ignoretext="Confirm before overwriting outfit"
+       name="okcancelignore"
+       notext="Cancel"
+       yestext="Save"/>
+  </notification>
+    
+  <notification
+    icon="alertmodal.tga"
+    name="ClearInventoryThumbnailsWarning"
+    type="alertmodal">
+        You are about to remove thumbnail images from the inventory items in the list. This change cannot be undone.
+
+        Would you like to proceed?
+   <tag>confirm</tag>
+   <usetemplate
+       name="okcancelbuttons"
+       notext="No"
+       yestext="Yes"/>
+  </notification>
+
+  <notification
+    icon="alertmodal.tga"
+    name="WriteInventoryThumbnailsWarning"
+    type="alertmodal">
+        You are about to overwrite thumbnail images for some or all of the inventory items in the list. This change cannot be undone.
+
+        Would you like to proceed?
+   <tag>confirm</tag>
+   <usetemplate
+       name="okcancelbuttons"
+       notext="No"
+       yestext="Yes"/>
+  </notification>
     
   <notification
     icon="notifytip.tga"
diff --git a/indra/newview/skins/default/xui/en/panel_settings_water.xml b/indra/newview/skins/default/xui/en/panel_settings_water.xml
index f19629df26..da2f915425 100644
--- a/indra/newview/skins/default/xui/en/panel_settings_water.xml
+++ b/indra/newview/skins/default/xui/en/panel_settings_water.xml
@@ -65,7 +65,7 @@
                 Density Exponent:
             </text>
             <slider
-                    decimal_digits="1"
+                    decimal_digits="2"
                     follows="left|top"
                     height="16"
                     increment="0.01"
diff --git a/scripts/code_tools/modified_strings.py b/scripts/code_tools/modified_strings.py
index e7a9d239dc..20ed1b0555 100644
--- a/scripts/code_tools/modified_strings.py
+++ b/scripts/code_tools/modified_strings.py
@@ -162,6 +162,8 @@ def make_translation_table(mod_tree, base_tree, lang, args):
         filename = mod_blob.path
         if mod_blob.type == "tree": # directory, skip
             continue
+        if args.files and os.path.basename(filename) not in args.files:
+            continue # process only the specified files
 
         if args.verbose:
             print(filename)
@@ -325,9 +327,11 @@ if __name__ == "__main__":
     parser.add_argument("--deleted", action="store_true", default = False, help="show all translated entities which don't exist in english")
     parser.add_argument("--skip_spreadsheet", action="store_true", default = False, help="skip creating the translation spreadsheet")
     parser.add_argument("--rev", help="revision with modified strings, default HEAD", default="HEAD")
-    parser.add_argument("--rev_base", help="previous revision to compare against, default master", default="master")
+    parser.add_argument("--rev_base", help="previous revision to compare against, default main", default="main")
     parser.add_argument("--base_lang", help="base language, default en (normally leave unchanged - other values are only useful for testing)", default="en")
     parser.add_argument("--lang", help="target languages, or 'all_valid' or 'supported'; default is 'supported'", nargs="+", default = ["supported"])
+    parser.add_argument("--files", help='list of files to process', metavar='F', type=str, nargs='*')
+    parser.add_argument("--outfile", help='name of the output file', type=str, nargs='?', default="SL_Translations.xlsx")
     args = parser.parse_args()
 
     cwd = os.getcwd()
@@ -370,7 +374,7 @@ if __name__ == "__main__":
     print("Target language(s) are", ",".join(sorted(langs)))
     sys.stdout.flush()
 
-    outfile = "SL_Translations.xlsx"
+    outfile = args.outfile
     try:
         f = open(outfile,"a+")
         f.close()