merge changes for storm-383

36 files changed, 381 insertions, 376 deletions

diff --git a/.hgtags b/.hgtags
index a700aa94ea..0e0898afb0 100644
--- a/.hgtags
+++ b/.hgtags
@@ -43,3 +43,11 @@ dc6483491b4af559060bccaef8e9045a303212dd 2.4.0-beta1
 25bd6007e3d2fc15db9326ed4b18a24a5969a46a 2.4.0-beta2
 1ed382c6a08ba3850b6ce9061bc551ddece0ea07 2.4.0-release
 a82e5b1e22c7f90e3c7977d146b80588f004ed0d 2.5.0-start
+76f586a8e22b1abe6b2339758c8ac0fa718975de 76f586a8e22b
+76f586a8e22b1abe6b2339758c8ac0fa718975de 76f586a8e22b
+0000000000000000000000000000000000000000 76f586a8e22b
+0000000000000000000000000000000000000000 76f586a8e22b
+345b17e7cf630db77e840b4fe3451bd476d750a3 76f586a8e22b
+345b17e7cf630db77e840b4fe3451bd476d750a3 2.5.0-beta1
+345b17e7cf630db77e840b4fe3451bd476d750a3 76f586a8e22b
+0000000000000000000000000000000000000000 76f586a8e22b
diff --git a/doc/contributions.txt b/doc/contributions.txt
index f21354b406..1ec878846d 100644
--- a/doc/contributions.txt
+++ b/doc/contributions.txt
@@ -72,6 +72,7 @@ Aleric Inglewood
 	VWR-10837
 	VWR-12691
 	VWR-12984
+	VWR-13040
 	VWR-13996
 	VWR-14426
 	VWR-24247
@@ -79,6 +80,9 @@ Aleric Inglewood
 	VWR-24252
 	VWR-24254
 	VWR-24261
+	VWR-24315
+	VWR-24317
+	VWR-24320
 	SNOW-84
 	SNOW-477
 	SNOW-744
@@ -393,6 +397,7 @@ Kitty Barnett
 	STORM-288
 	STORM-799
 	STORM-800
+    VWR-24217
 Kunnis Basiat
 	VWR-82
 	VWR-102
@@ -736,6 +741,7 @@ Thickbrick Sleaford
 	VWR-9287
 	VWR-13483
 	VWR-13947
+	VWR-24420
 Thraxis Epsilon
 	SVC-371
 	VWR-383
diff --git a/indra/llcommon/llavatarname.cpp b/indra/llcommon/llavatarname.cpp
index b1ec9e9875..ad1845d387 100644
--- a/indra/llcommon/llavatarname.cpp
+++ b/indra/llcommon/llavatarname.cpp
@@ -48,7 +48,7 @@ LLAvatarName::LLAvatarName()
 	mLegacyFirstName(),
 	mLegacyLastName(),
 	mIsDisplayNameDefault(false),
-	mIsDummy(false),
+	mIsTemporaryName(false),
 	mExpires(F64_MAX),
 	mNextUpdate(0.0)
 { }
diff --git a/indra/llcommon/llavatarname.h b/indra/llcommon/llavatarname.h
index 145aeccd35..ba258d6d52 100644
--- a/indra/llcommon/llavatarname.h
+++ b/indra/llcommon/llavatarname.h
@@ -79,7 +79,7 @@ public:
 	// Under error conditions, we may insert "dummy" records with
 	// names like "???" into caches as placeholders.  These can be
 	// shown in UI, but are not serialized.
-	bool mIsDummy;
+	bool mIsTemporaryName;
 
 	// Names can change, so need to keep track of when name was
 	// last checked.
diff --git a/indra/llimage/llpngwrapper.cpp b/indra/llimage/llpngwrapper.cpp
index fe737e2072..2cc7d3c460 100644
--- a/indra/llimage/llpngwrapper.cpp
+++ b/indra/llimage/llpngwrapper.cpp
@@ -50,8 +50,6 @@ LLPngWrapper::LLPngWrapper()
 	  mCompressionType( 0 ),
 	  mFilterMethod( 0 ),
 	  mFinalSize( 0 ),
-	  mHasBKGD(false),
-	  mBackgroundColor(),
 	  mGamma(0.f)
 {
 }
@@ -111,9 +109,9 @@ void LLPngWrapper::writeFlush(png_structp png_ptr)
 }
 
 // Read the PNG file using the libpng.  The low-level interface is used here
-// because we want to do various transformations (including setting the
-// matte background if any, and applying gama) which can't be done with
-// the high-level interface. The scanline also begins at the bottom of
+// because we want to do various transformations (including applying gama)
+// which can't be done with the high-level interface.
+// The scanline also begins at the bottom of
 // the image (per SecondLife conventions) instead of at the top, so we
 // must assign row-pointers in "reverse" order.
 BOOL LLPngWrapper::readPng(U8* src, LLImageRaw* rawImage, ImageInfo *infop)
@@ -201,8 +199,7 @@ void LLPngWrapper::normalizeImage()
 	//		2. Convert grayscales to RGB
 	//		3. Create alpha layer from transparency
 	//		4. Ensure 8-bpp for all images
-	//		5. Apply background matte if any
-	//		6. Set (or guess) gamma
+	//		5. Set (or guess) gamma
 
 	if (mColorType == PNG_COLOR_TYPE_PALETTE)
 	{
@@ -229,12 +226,6 @@ void LLPngWrapper::normalizeImage()
 	{
 		png_set_strip_16(mReadPngPtr);
 	}
-	mHasBKGD = png_get_bKGD(mReadPngPtr, mReadInfoPtr, &mBackgroundColor);
-	if (mHasBKGD)
-	{
-		png_set_background(mReadPngPtr, mBackgroundColor,
-			PNG_BACKGROUND_GAMMA_FILE, 1, 1.0);
-	}
 
 #if LL_DARWIN
 	const F64 SCREEN_GAMMA = 1.8;
@@ -261,7 +252,6 @@ void LLPngWrapper::updateMetaData()
     mBitDepth = png_get_bit_depth(mReadPngPtr, mReadInfoPtr);
     mColorType = png_get_color_type(mReadPngPtr, mReadInfoPtr);
 	mChannels = png_get_channels(mReadPngPtr, mReadInfoPtr);
-	mHasBKGD = png_get_bKGD(mReadPngPtr, mReadInfoPtr, &mBackgroundColor);
 }
 
 // Method to write raw image into PNG at dest. The raw scanline begins
diff --git a/indra/llimage/llpngwrapper.h b/indra/llimage/llpngwrapper.h
index 47a4207d66..739f435996 100644
--- a/indra/llimage/llpngwrapper.h
+++ b/indra/llimage/llpngwrapper.h
@@ -88,9 +88,6 @@ private:
 
 	U32 mFinalSize;
 
-	bool mHasBKGD;
-	png_color_16p mBackgroundColor;
-
 	F64 mGamma;
 
 	std::string mErrorMessage;
diff --git a/indra/llmessage/llavatarnamecache.cpp b/indra/llmessage/llavatarnamecache.cpp
index 03c28eb2a5..767001b633 100644
--- a/indra/llmessage/llavatarnamecache.cpp
+++ b/indra/llmessage/llavatarnamecache.cpp
@@ -81,8 +81,11 @@ namespace LLAvatarNameCache
 	// only need per-frame timing resolution
 	LLFrameTimer sRequestTimer;
 
-	// Periodically clean out expired entries from the cache
-	//LLFrameTimer sEraseExpiredTimer;
+    /// Maximum time an unrefreshed cache entry is allowed
+    const F64 MAX_UNREFRESHED_TIME = 20.0 * 60.0;
+
+    /// Time when unrefreshed cached names were checked last
+    static F64 sLastExpireCheck;
 
 	//-----------------------------------------------------------------------
 	// Internal methods
@@ -99,8 +102,9 @@ namespace LLAvatarNameCache
 
 	// Legacy name system callback
 	void legacyNameCallback(const LLUUID& agent_id,
-		const std::string& full_name,
-		bool is_group);
+							const std::string& full_name,
+							bool is_group
+							);
 
 	void requestNamesViaLegacy();
 
@@ -117,7 +121,7 @@ namespace LLAvatarNameCache
 	bool isRequestPending(const LLUUID& agent_id);
 
 	// Erase expired names from cache
-	void eraseExpired();
+	void eraseUnrefreshed();
 
 	bool expirationFromCacheControl(LLSD headers, F64 *expires);
 }
@@ -187,6 +191,7 @@ public:
 	{
 		// Pull expiration out of headers if available
 		F64 expires = LLAvatarNameCache::nameExpirationFromHeaders(mHeaders);
+		F64 now = LLFrameTimer::getTotalSeconds();
 
 		LLSD agents = content["agents"];
 		LLSD::array_const_iterator it = agents.beginArray();
@@ -207,84 +212,91 @@ public:
 				av_name.mDisplayName = av_name.mUsername;
 			}
 
+			LL_DEBUGS("AvNameCache") << "LLAvatarNameResponder::result for " << agent_id << " "
+									 << "user '" << av_name.mUsername << "' "
+									 << "display '" << av_name.mDisplayName << "' "
+									 << "expires in " << expires - now << " seconds"
+									 << LL_ENDL;
+			
 			// cache it and fire signals
 			LLAvatarNameCache::processName(agent_id, av_name, true);
 		}
 
 		// Same logic as error response case
 		LLSD unresolved_agents = content["bad_ids"];
-		if (unresolved_agents.size() > 0)
+		S32  num_unresolved = unresolved_agents.size();
+		if (num_unresolved > 0)
 		{
-			const std::string DUMMY_NAME("\?\?\?");
-			LLAvatarName av_name;
-			av_name.mUsername = DUMMY_NAME;
-			av_name.mDisplayName = DUMMY_NAME;
-			av_name.mIsDisplayNameDefault = false;
-			av_name.mIsDummy = true;
-			av_name.mExpires = expires;
-
+            LL_WARNS("AvNameCache") << "LLAvatarNameResponder::result " << num_unresolved << " unresolved ids; "
+                                    << "expires in " << expires - now << " seconds"
+                                    << LL_ENDL;
 			it = unresolved_agents.beginArray();
 			for ( ; it != unresolved_agents.endArray(); ++it)
 			{
 				const LLUUID& agent_id = *it;
-				// cache it and fire signals
-				LLAvatarNameCache::processName(agent_id, av_name, true);
+
+				LL_WARNS("AvNameCache") << "LLAvatarNameResponder::result "
+                                        << "failed id " << agent_id
+                                        << LL_ENDL;
+
+                LLAvatarNameCache::handleAgentError(agent_id);
 			}
 		}
-	}
+        LL_DEBUGS("AvNameCache") << "LLAvatarNameResponder::result " 
+                                 << LLAvatarNameCache::sCache.size() << " cached names"
+                                 << LL_ENDL;
+    }
 
 	/*virtual*/ void error(U32 status, const std::string& reason)
 	{
 		// If there's an error, it might be caused by PeopleApi,
 		// or when loading textures on startup and using a very slow 
-		// network, this query may time out. Fallback to the legacy
-		// cache. 
-
-		llwarns << "LLAvatarNameResponder error " << status << " " << reason << llendl;
+		// network, this query may time out.
+		// What we should do depends on whether or not we have a cached name
+		LL_WARNS("AvNameCache") << "LLAvatarNameResponder::error " << status << " " << reason
+								<< LL_ENDL;
 
-		// Add dummy records for all agent IDs in this request
+		// Add dummy records for any agent IDs in this request that we do not have cached already
 		std::vector<LLUUID>::const_iterator it = mAgentIDs.begin();
 		for ( ; it != mAgentIDs.end(); ++it)
 		{
 			const LLUUID& agent_id = *it;
-			gCacheName->get(agent_id, false,  // legacy compatibility
-						boost::bind(&LLAvatarNameCache::legacyNameCallback,
-						_1, _2, _3));
-		}
-	}
-
-	// Return time to retry a request that generated an error, based on
-	// error type and headers.  Return value is seconds-since-epoch.
-	F64 errorRetryTimestamp(S32 status)
-	{
-		F64 now = LLFrameTimer::getTotalSeconds();
-
-		// Retry-After takes priority
-		LLSD retry_after = mHeaders["retry-after"];
-		if (retry_after.isDefined())
-		{
-			// We only support the delta-seconds type
-			S32 delta_seconds = retry_after.asInteger();
-			if (delta_seconds > 0)
-			{
-				// ...valid delta-seconds
-				return now + F64(delta_seconds);
-			}
+			LLAvatarNameCache::handleAgentError(agent_id);
 		}
-
-		// If no Retry-After, look for Cache-Control max-age
-		F64 expires = 0.0;
-		if (LLAvatarNameCache::expirationFromCacheControl(mHeaders, &expires))
-		{
-			return expires;
-		}
-
-		// No information in header, make a guess
-		const F64 DEFAULT_DELAY = 120.0; // 2 mintues
-		return now + DEFAULT_DELAY;
 	}
 };
 
+// Provide some fallback for agents that return errors
+void LLAvatarNameCache::handleAgentError(const LLUUID& agent_id)
+{
+	std::map<LLUUID,LLAvatarName>::iterator existing = sCache.find(agent_id);
+	if (existing == sCache.end())
+    {
+        // there is no existing cache entry, so make a temporary name from legacy
+        LL_WARNS("AvNameCache") << "LLAvatarNameCache get legacy for agent "
+                                << agent_id << LL_ENDL;
+        gCacheName->get(agent_id, false,  // legacy compatibility
+                        boost::bind(&LLAvatarNameCache::legacyNameCallback,
+                                    _1, _2, _3));
+    }
+	else
+    {
+        // we have a chached (but probably expired) entry - since that would have
+        // been returned by the get method, there is no need to signal anyone
+
+        // Clear this agent from the pending list
+        LLAvatarNameCache::sPendingQueue.erase(agent_id);
+
+        const LLAvatarName& av_name = existing->second;
+        LL_DEBUGS("AvNameCache") << "LLAvatarNameCache use cache for agent "
+                                 << agent_id 
+                                 << "user '" << av_name.mUsername << "' "
+                                 << "display '" << av_name.mDisplayName << "' "
+                                 << "expires in " << av_name.mExpires - LLFrameTimer::getTotalSeconds() << " seconds"
+                                 << LL_ENDL;
+    }
+}
+
 void LLAvatarNameCache::processName(const LLUUID& agent_id,
 									const LLAvatarName& av_name,
 									bool add_to_cache)
@@ -326,6 +338,7 @@ void LLAvatarNameCache::requestNamesViaCapability()
 	std::vector<LLUUID> agent_ids;
 	agent_ids.reserve(128);
 	
+	U32 ids = 0;
 	ask_queue_t::const_iterator it = sAskQueue.begin();
 	for ( ; it != sAskQueue.end(); ++it)
 	{
@@ -336,11 +349,13 @@ void LLAvatarNameCache::requestNamesViaCapability()
 			// ...starting new request
 			url += sNameLookupURL;
 			url += "?ids=";
+			ids = 1;
 		}
 		else
 		{
 			// ...continuing existing request
 			url += "&ids=";
+			ids++;
 		}
 		url += agent_id.asString();
 		agent_ids.push_back(agent_id);
@@ -350,8 +365,10 @@ void LLAvatarNameCache::requestNamesViaCapability()
 
 		if (url.size() > NAME_URL_SEND_THRESHOLD)
 		{
-			//llinfos << "requestNames " << url << llendl;
-			LLHTTPClient::get(url, new LLAvatarNameResponder(agent_ids));//, LLSD(), 10.0f);
+			LL_DEBUGS("AvNameCache") << "LLAvatarNameCache::requestNamesViaCapability first "
+									 << ids << " ids"
+									 << LL_ENDL;
+			LLHTTPClient::get(url, new LLAvatarNameResponder(agent_ids));
 			url.clear();
 			agent_ids.clear();
 		}
@@ -359,8 +376,10 @@ void LLAvatarNameCache::requestNamesViaCapability()
 
 	if (!url.empty())
 	{
-		//llinfos << "requestNames " << url << llendl;
-		LLHTTPClient::get(url, new LLAvatarNameResponder(agent_ids));//, LLSD(), 10.0f);
+		LL_DEBUGS("AvNameCache") << "LLAvatarNameCache::requestNamesViaCapability all "
+								 << ids << " ids"
+								 << LL_ENDL;
+		LLHTTPClient::get(url, new LLAvatarNameResponder(agent_ids));
 		url.clear();
 		agent_ids.clear();
 	}
@@ -376,6 +395,11 @@ void LLAvatarNameCache::legacyNameCallback(const LLUUID& agent_id,
 	// Construct a dummy record for this name.  By convention, SLID is blank
 	// Never expires, but not written to disk, so lasts until end of session.
 	LLAvatarName av_name;
+	LL_DEBUGS("AvNameCache") << "LLAvatarNameCache::legacyNameCallback "
+							 << "agent " << agent_id << " "
+							 << "full name '" << full_name << "'"
+							 << ( is_group ? " [group]" : "" )
+							 << LL_ENDL;
 	buildLegacyName(full_name, &av_name);
 
 	// Don't add to cache, the data already exists in the legacy name system
@@ -397,6 +421,8 @@ void LLAvatarNameCache::requestNamesViaLegacy()
 		// invoked below.  This should never happen in practice.
 		sPendingQueue[agent_id] = now;
 
+		LL_DEBUGS("AvNameCache") << "LLAvatarNameCache::requestNamesViaLegacy agent " << agent_id << LL_ENDL;
+
 		gCacheName->get(agent_id, false,  // legacy compatibility
 			boost::bind(&LLAvatarNameCache::legacyNameCallback,
 				_1, _2, _3));
@@ -435,21 +461,24 @@ void LLAvatarNameCache::importFile(std::istream& istr)
 		av_name.fromLLSD( it->second );
 		sCache[agent_id] = av_name;
 	}
-	// entries may have expired since we last ran the viewer, just
-	// clean them out now
-	eraseExpired();
-	llinfos << "loaded " << sCache.size() << llendl;
+    LL_INFOS("AvNameCache") << "loaded " << sCache.size() << LL_ENDL;
+
+	// Some entries may have expired since the cache was stored,
+    // but they will be flushed in the first call to eraseUnrefreshed
+    // from LLAvatarNameResponder::idle
 }
 
 void LLAvatarNameCache::exportFile(std::ostream& ostr)
 {
 	LLSD agents;
+	F64 max_unrefreshed = LLFrameTimer::getTotalSeconds() - MAX_UNREFRESHED_TIME;
 	cache_t::const_iterator it = sCache.begin();
 	for ( ; it != sCache.end(); ++it)
 	{
 		const LLUUID& agent_id = it->first;
 		const LLAvatarName& av_name = it->second;
-		if (!av_name.mIsDummy)
+		// Do not write temporary or expired entries to the stored cache
+		if (!av_name.mIsTemporaryName && av_name.mExpires >= max_unrefreshed)
 		{
 			// key must be a string
 			agents[agent_id.asString()] = av_name.asLLSD();
@@ -484,62 +513,63 @@ void LLAvatarNameCache::idle()
 	//	return;
 	//}
 
-	// Must be large relative to above
-
-	// No longer deleting expired entries, just re-requesting in the get
-	// this way first synchronous get call on an expired entry won't return
-	// legacy name.  LF
-
-	//const F32 ERASE_EXPIRED_TIMEOUT = 60.f; // seconds
-	//if (sEraseExpiredTimer.checkExpirationAndReset(ERASE_EXPIRED_TIMEOUT))
-	//{
-	//	eraseExpired();
-	//}
-
-	if (sAskQueue.empty())
+	if (!sAskQueue.empty())
 	{
-		return;
+        if (useDisplayNames())
+        {
+            requestNamesViaCapability();
+        }
+        else
+        {
+            // ...fall back to legacy name cache system
+            requestNamesViaLegacy();
+        }
 	}
 
-	if (useDisplayNames())
-	{
-		requestNamesViaCapability();
-	}
-	else
-	{
-		// ...fall back to legacy name cache system
-		requestNamesViaLegacy();
-	}
+    // erase anything that has not been refreshed for more than MAX_UNREFRESHED_TIME
+    eraseUnrefreshed();
 }
 
 bool LLAvatarNameCache::isRequestPending(const LLUUID& agent_id)
 {
+	bool isPending = false;
 	const F64 PENDING_TIMEOUT_SECS = 5.0 * 60.0;
-	F64 now = LLFrameTimer::getTotalSeconds();
-	F64 expire_time = now - PENDING_TIMEOUT_SECS;
 
 	pending_queue_t::const_iterator it = sPendingQueue.find(agent_id);
 	if (it != sPendingQueue.end())
 	{
-		bool request_expired = (it->second < expire_time);
-		return !request_expired;
+		// in the list of requests in flight, retry if too old
+		F64 expire_time = LLFrameTimer::getTotalSeconds() - PENDING_TIMEOUT_SECS;
+		isPending = (it->second > expire_time);
 	}
-	return false;
+	return isPending;
 }
 
-void LLAvatarNameCache::eraseExpired()
+void LLAvatarNameCache::eraseUnrefreshed()
 {
 	F64 now = LLFrameTimer::getTotalSeconds();
-	cache_t::iterator it = sCache.begin();
-	while (it != sCache.end())
-	{
-		cache_t::iterator cur = it;
-		++it;
-		const LLAvatarName& av_name = cur->second;
-		if (av_name.mExpires < now)
-		{
-			sCache.erase(cur);
-		}
+	F64 max_unrefreshed = now - MAX_UNREFRESHED_TIME;
+
+    if (!sLastExpireCheck || sLastExpireCheck < max_unrefreshed)
+    {
+        sLastExpireCheck = now;
+        cache_t::iterator it = sCache.begin();
+        while (it != sCache.end())
+        {
+            cache_t::iterator cur = it;
+            ++it;
+            const LLAvatarName& av_name = cur->second;
+            if (av_name.mExpires < max_unrefreshed)
+            {
+                const LLUUID& agent_id = it->first;
+                LL_DEBUGS("AvNameCache") << agent_id 
+                                         << " user '" << av_name.mUsername << "' "
+                                         << "expired " << now - av_name.mExpires << " secs ago"
+                                         << LL_ENDL;
+                sCache.erase(cur);
+            }
+        }
+        LL_INFOS("AvNameCache") << sCache.size() << " cached avatar names" << LL_ENDL;
 	}
 }
 
@@ -550,8 +580,11 @@ void LLAvatarNameCache::buildLegacyName(const std::string& full_name,
 	av_name->mUsername = "";
 	av_name->mDisplayName = full_name;
 	av_name->mIsDisplayNameDefault = true;
-	av_name->mIsDummy = true;
-	av_name->mExpires = F64_MAX;
+	av_name->mIsTemporaryName = true;
+	av_name->mExpires = F64_MAX; // not used because these are not cached
+	LL_DEBUGS("AvNameCache") << "LLAvatarNameCache::buildLegacyName "
+							 << full_name
+							 << LL_ENDL;
 }
 
 // fills in av_name if it has it in the cache, even if expired (can check expiry time)
@@ -574,6 +607,9 @@ bool LLAvatarNameCache::get(const LLUUID& agent_id, LLAvatarName *av_name)
 				{
 					if (!isRequestPending(agent_id))
 					{
+						LL_DEBUGS("AvNameCache") << "LLAvatarNameCache::get "
+												 << "refresh agent " << agent_id
+												 << LL_ENDL;
 						sAskQueue.insert(agent_id);
 					}
 				}
@@ -595,6 +631,9 @@ bool LLAvatarNameCache::get(const LLUUID& agent_id, LLAvatarName *av_name)
 
 	if (!isRequestPending(agent_id))
 	{
+		LL_DEBUGS("AvNameCache") << "LLAvatarNameCache::get "
+								 << "queue request for agent " << agent_id
+								 << LL_ENDL;
 		sAskQueue.insert(agent_id);
 	}
 
@@ -627,7 +666,6 @@ void LLAvatarNameCache::get(const LLUUID& agent_id, callback_slot_t slot)
 				{
 					// ...name already exists in cache, fire callback now
 					fireSignal(agent_id, slot, av_name);
-
 					return;
 				}
 			}
@@ -723,6 +761,9 @@ F64 LLAvatarNameCache::nameExpirationFromHeaders(LLSD headers)
 
 bool LLAvatarNameCache::expirationFromCacheControl(LLSD headers, F64 *expires)
 {
+	bool fromCacheControl = false;
+	F64 now = LLFrameTimer::getTotalSeconds();
+
 	// Allow the header to override the default
 	LLSD cache_control_header = headers["cache-control"];
 	if (cache_control_header.isDefined())
@@ -731,12 +772,16 @@ bool LLAvatarNameCache::expirationFromCacheControl(LLSD headers, F64 *expires)
 		std::string cache_control = cache_control_header.asString();
 		if (max_age_from_cache_control(cache_control, &max_age))
 		{
-			F64 now = LLFrameTimer::getTotalSeconds();
 			*expires = now + (F64)max_age;
-			return true;
+			fromCacheControl = true;
 		}
 	}
-	return false;
+	LL_DEBUGS("AvNameCache")
+		<< ( fromCacheControl ? "expires based on cache control " : "default expiration " )
+		<< "in " << *expires - now << " seconds"
+		<< LL_ENDL;
+	
+	return fromCacheControl;
 }
 
 
diff --git a/indra/llmessage/llavatarnamecache.h b/indra/llmessage/llavatarnamecache.h
index 8f21ace96a..59c1329ffa 100644
--- a/indra/llmessage/llavatarnamecache.h
+++ b/indra/llmessage/llavatarnamecache.h
@@ -82,6 +82,9 @@ namespace LLAvatarNameCache
 
 	void erase(const LLUUID& agent_id);
 
+    /// Provide some fallback for agents that return errors
+	void handleAgentError(const LLUUID& agent_id);
+
 	// Force a re-fetch of the most recent data, but keep the current
 	// data in cache
 	void fetch(const LLUUID& agent_id);
diff --git a/indra/llui/llnotifications.cpp b/indra/llui/llnotifications.cpp
index cd0f0e36b0..cc9edfcdea 100644
--- a/indra/llui/llnotifications.cpp
+++ b/indra/llui/llnotifications.cpp
@@ -1367,7 +1367,6 @@ LLNotifications::TemplateNames LLNotifications::getTemplateNames() const
 typedef std::map<std::string, std::string> StringMap;
 void replaceSubstitutionStrings(LLXMLNodePtr node, StringMap& replacements)
 {
-	//llwarns << "replaceSubstitutionStrings" << llendl;
 	// walk the list of attributes looking for replacements
 	for (LLXMLAttribList::iterator it=node->mAttributes.begin();
 		 it != node->mAttributes.end(); ++it)
@@ -1381,13 +1380,12 @@ void replaceSubstitutionStrings(LLXMLNodePtr node, StringMap& replacements)
 			if (found != replacements.end())
 			{
 				replacement = found->second;
-				//llwarns << "replaceSubstituionStrings: value: " << value << " repl: " << replacement << llendl;
-
+				lldebugs << "replaceSubstitutionStrings: value: \"" << value << "\" repl: \"" << replacement << "\"." << llendl;
 				it->second->setValue(replacement);
 			}
 			else
 			{
-				llwarns << "replaceSubstituionStrings FAILURE: value: " << value << " repl: " << replacement << llendl;
+				llwarns << "replaceSubstitutionStrings FAILURE: could not find replacement \"" << value << "\"." << llendl;
 			}
 		}
 	}
diff --git a/indra/newview/app_settings/lindenlab.pem b/indra/newview/app_settings/lindenlab.pem
index cf88d0e047..eddae0426d 100644
--- a/indra/newview/app_settings/lindenlab.pem
+++ b/indra/newview/app_settings/lindenlab.pem
@@ -24,4 +24,74 @@ xA39CIJ65Zozs28Eg1aV9/Y+Of7TnWhW+U3J3/wD/GghaAGiKK6vMn9gJBIdBX/9
 e6ef37VGyiOEFFjnUIbuk0RWty0orN76q/lI/xjCi15XSA/VSq2j4vmnwfZcPTDu
 glmQ1A==
 -----END CERTIFICATE-----
-
+-----BEGIN CERTIFICATE-----
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+3pirsuvjMPV19zuH6b9NpJfXfd0=
+-----END CERTIFICATE-----
+-----BEGIN CERTIFICATE-----
+MIIDfTCCAuagAwIBAgIDErvmMA0GCSqGSIb3DQEBBQUAME4xCzAJBgNVBAYTAlVT
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+b8ravHNjkOR/ez4iyz0H7V84dJzjA1BOoa+Y7mHyhD8S
+-----END CERTIFICATE-----
+-----BEGIN CERTIFICATE-----
+MIID2TCCAsGgAwIBAgIDAjbQMA0GCSqGSIb3DQEBBQUAMEIxCzAJBgNVBAYTAlVT
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+TpnKXKBuervdo5AaRTPvvz7SBMS24CqFZUE+ENQ=
+-----END CERTIFICATE-----
diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index ef6f8fd3ee..a22f197b85 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -12445,16 +12445,5 @@
       <key>Value</key>
       <string>name</string>
     </map>
-    <key>ReleaseNotesURL</key>
-    <map>
-      <key>Comment</key>
-      <string>Release notes URL template</string>
-      <key>Persist</key>
-      <integer>1</integer>
-      <key>Type</key>
-      <string>String</string>
-      <key>Value</key>
-      <string>http://secondlife.com/app/releasenotes/?channel=[CHANNEL]&amp;version=[VERSION]</string>
-    </map>
 </map>
 </llsd>
diff --git a/indra/newview/llappviewer.cpp b/indra/newview/llappviewer.cpp
index 80c752da9a..6a9dfaf21b 100644
--- a/indra/newview/llappviewer.cpp
+++ b/indra/newview/llappviewer.cpp
@@ -473,8 +473,6 @@ static void settings_to_globals()
 	gDebugWindowProc = gSavedSettings.getBOOL("DebugWindowProc");
 	gShowObjectUpdates = gSavedSettings.getBOOL("ShowObjectUpdates");
 	LLWorldMapView::sMapScale = gSavedSettings.getF32("MapScale");
-
-	LLCubeMap::sUseCubeMaps = LLFeatureManager::getInstance()->isFeatureAvailable("RenderCubeMap");
 }
 
 static void settings_modify()
@@ -854,6 +852,9 @@ bool LLAppViewer::init()
 	gGLActive = TRUE;
 	initWindow();
 
+	// initWindow also initializes the Feature List, so now we can initialize this global.
+	LLCubeMap::sUseCubeMaps = LLFeatureManager::getInstance()->isFeatureAvailable("RenderCubeMap");
+
 	// call all self-registered classes
 	LLInitClassList::instance().fireCallbacks();
 
@@ -1397,16 +1398,6 @@ bool LLAppViewer::cleanup()
 	}
 	mPlugins.clear();
 
-	//----------------------------------------------
-	//this test code will be removed after the test
-	//test manual call stack tracer
-	if(gSavedSettings.getBOOL("QAMode"))
-	{
-		LLError::LLCallStacks::print() ;
-	}
-	//end of the test code
-	//----------------------------------------------
-
 	//flag all elements as needing to be destroyed immediately
 	// to ensure shutdown order
 	LLMortician::setZealous(TRUE);
@@ -3076,35 +3067,32 @@ void LLAppViewer::initMarkerFile()
 	std::string llerror_marker_file = gDirUtilp->getExpandedFilename(LL_PATH_LOGS, LLERROR_MARKER_FILE_NAME);
 	std::string error_marker_file = gDirUtilp->getExpandedFilename(LL_PATH_LOGS, ERROR_MARKER_FILE_NAME);
 
-	
 	if (LLAPRFile::isExist(mMarkerFileName, NULL, LL_APR_RB) && !anotherInstanceRunning())
 	{
 		gLastExecEvent = LAST_EXEC_FROZE;
 		LL_INFOS("MarkerFile") << "Exec marker found: program froze on previous execution" << LL_ENDL;
 	}    
-    
 	if(LLAPRFile::isExist(logout_marker_file, NULL, LL_APR_RB))
 	{
-		LL_INFOS("MarkerFile") << "Last exec LLError crashed, setting LastExecEvent to " << LAST_EXEC_LLERROR_CRASH << LL_ENDL;
 		gLastExecEvent = LAST_EXEC_LOGOUT_FROZE;
+		LL_INFOS("MarkerFile") << "Last exec LLError crashed, setting LastExecEvent to " << gLastExecEvent << LL_ENDL;
+		LLAPRFile::remove(logout_marker_file);
 	}
 	if(LLAPRFile::isExist(llerror_marker_file, NULL, LL_APR_RB))
 	{
-		llinfos << "Last exec LLError crashed, setting LastExecEvent to " << LAST_EXEC_LLERROR_CRASH << llendl;
 		if(gLastExecEvent == LAST_EXEC_LOGOUT_FROZE) gLastExecEvent = LAST_EXEC_LOGOUT_CRASH;
 		else gLastExecEvent = LAST_EXEC_LLERROR_CRASH;
+		LL_INFOS("MarkerFile") << "Last exec LLError crashed, setting LastExecEvent to " << gLastExecEvent << LL_ENDL;
+		LLAPRFile::remove(llerror_marker_file);
 	}
 	if(LLAPRFile::isExist(error_marker_file, NULL, LL_APR_RB))
 	{
-		LL_INFOS("MarkerFile") << "Last exec crashed, setting LastExecEvent to " << LAST_EXEC_OTHER_CRASH << LL_ENDL;
 		if(gLastExecEvent == LAST_EXEC_LOGOUT_FROZE) gLastExecEvent = LAST_EXEC_LOGOUT_CRASH;
 		else gLastExecEvent = LAST_EXEC_OTHER_CRASH;
+		LL_INFOS("MarkerFile") << "Last exec crashed, setting LastExecEvent to " << gLastExecEvent << LL_ENDL;
+		LLAPRFile::remove(error_marker_file);
 	}
-	
-	LLAPRFile::remove(logout_marker_file);
-	LLAPRFile::remove(llerror_marker_file);
-	LLAPRFile::remove(error_marker_file);
-	
+
 	// No new markers if another instance is running.
 	if(anotherInstanceRunning()) 
 	{
@@ -3746,6 +3734,7 @@ void LLAppViewer::loadNameCache()
 	// display names cache
 	std::string filename =
 		gDirUtilp->getExpandedFilename(LL_PATH_CACHE, "avatar_name_cache.xml");
+	LL_INFOS("AvNameCache") << filename << LL_ENDL;
 	llifstream name_cache_stream(filename);
 	if(name_cache_stream.is_open())
 	{
diff --git a/indra/newview/llfeaturemanager.cpp b/indra/newview/llfeaturemanager.cpp
index ca2ef5f5b8..4e16cc4217 100644
--- a/indra/newview/llfeaturemanager.cpp
+++ b/indra/newview/llfeaturemanager.cpp
@@ -290,11 +290,9 @@ BOOL LLFeatureManager::parseFeatureTable(std::string filename)
 	mTableVersion = version;
 
 	LLFeatureList *flp = NULL;
-	while (!file.eof() && file.good())
+	while (file >> name)
 	{
 		char buffer[MAX_STRING];		 /*Flawfinder: ignore*/
-
-		file >> name;
 		
 		if (name.substr(0,2) == "//")
 		{
@@ -303,13 +301,6 @@ BOOL LLFeatureManager::parseFeatureTable(std::string filename)
 			continue;
 		}
 
-		if (name.empty())
-		{
-			// This is a blank line
-			file.getline(buffer, MAX_STRING);
-			continue;
-		}
-
 		if (name == "list")
 		{
 			if (flp)
diff --git a/indra/newview/llfloatersettingsdebug.cpp b/indra/newview/llfloatersettingsdebug.cpp
index 71882fbb83..07f5220ab7 100644
--- a/indra/newview/llfloatersettingsdebug.cpp
+++ b/indra/newview/llfloatersettingsdebug.cpp
@@ -178,7 +178,7 @@ void LLFloaterSettingsDebug::onClickDefault()
 
 	if (controlp)
 	{
-		controlp->resetToDefault();
+		controlp->resetToDefault(true);
 		updateControl(controlp);
 	}
 }
diff --git a/indra/newview/llimview.cpp b/indra/newview/llimview.cpp
index afd565bb26..9623554200 100644
--- a/indra/newview/llimview.cpp
+++ b/indra/newview/llimview.cpp
@@ -279,7 +279,7 @@ LLIMModel::LLIMSession::LLIMSession(const LLUUID& session_id, const std::string&
 
 void LLIMModel::LLIMSession::onAdHocNameCache(const LLAvatarName& av_name)
 {
-	if (av_name.mIsDummy)
+	if (av_name.mIsTemporaryName)
 	{
 		S32 separator_index = mName.rfind(" ");
 		std::string name = mName.substr(0, separator_index);
diff --git a/indra/newview/lllogininstance.cpp b/indra/newview/lllogininstance.cpp
index d866db1829..33e051bfab 100644
--- a/indra/newview/lllogininstance.cpp
+++ b/indra/newview/lllogininstance.cpp
@@ -214,6 +214,9 @@ void MandatoryUpdateMachine::start(void)
 			case LLUpdaterService::CHECKING_FOR_UPDATE:
 				setCurrentState(new CheckingForUpdate(*this));
 				break;
+			case LLUpdaterService::TEMPORARY_ERROR:
+				setCurrentState(new Error(*this));
+				break;
 			case LLUpdaterService::DOWNLOADING:
 				setCurrentState(new WaitingForDownload(*this));
 				break;
@@ -289,6 +292,7 @@ bool MandatoryUpdateMachine::CheckingForUpdate::onEvent(LLSD const & event)
 			case LLUpdaterService::DOWNLOADING:
 				mMachine.setCurrentState(new WaitingForDownload(mMachine));
 				break;
+			case LLUpdaterService::TEMPORARY_ERROR:
 			case LLUpdaterService::UP_TO_DATE:
 			case LLUpdaterService::TERMINAL:
 			case LLUpdaterService::FAILURE:
@@ -324,7 +328,7 @@ MandatoryUpdateMachine::Error::Error(MandatoryUpdateMachine & machine):
 void MandatoryUpdateMachine::Error::enter(void)
 {
 	llinfos << "entering error" << llendl;
-	LLNotificationsUtil::add("FailedUpdateInstall", LLSD(), LLSD(), boost::bind(&MandatoryUpdateMachine::Error::onButtonClicked, this, _1, _2));
+	LLNotificationsUtil::add("FailedRequiredUpdateInstall", LLSD(), LLSD(), boost::bind(&MandatoryUpdateMachine::Error::onButtonClicked, this, _1, _2));
 }
 
 
@@ -468,7 +472,6 @@ LLLoginInstance::LLLoginInstance() :
 	mLoginModule(new LLLogin()),
 	mNotifications(NULL),
 	mLoginState("offline"),
-	mUserInteraction(true),
 	mSkipOptionalUpdate(false),
 	mAttemptComplete(false),
 	mTransferRate(0.0f),
@@ -637,64 +640,57 @@ void LLLoginInstance::handleLoginFailure(const LLSD& event)
 	LLSD response = event["data"];
 	std::string reason_response = response["reason"].asString();
 	std::string message_response = response["message"].asString();
-	if(mUserInteraction)
+	// For the cases of critical message or TOS agreement,
+	// start the TOS dialog. The dialog response will be handled
+	// by the LLLoginInstance::handleTOSResponse() callback.
+	// The callback intiates the login attempt next step, either 
+	// to reconnect or to end the attempt in failure.
+	if(reason_response == "tos")
 	{
-		// For the cases of critical message or TOS agreement,
-		// start the TOS dialog. The dialog response will be handled
-		// by the LLLoginInstance::handleTOSResponse() callback.
-		// The callback intiates the login attempt next step, either 
-		// to reconnect or to end the attempt in failure.
-		if(reason_response == "tos")
-		{
-			LLSD data(LLSD::emptyMap());
-			data["message"] = message_response;
-			data["reply_pump"] = TOS_REPLY_PUMP;
-			gViewerWindow->setShowProgress(FALSE);
-			LLFloaterReg::showInstance("message_tos", data);
-			LLEventPumps::instance().obtain(TOS_REPLY_PUMP)
-				.listen(TOS_LISTENER_NAME,
-						boost::bind(&LLLoginInstance::handleTOSResponse, 
-									this, _1, "agree_to_tos"));
-		}
-		else if(reason_response == "critical")
-		{
-			LLSD data(LLSD::emptyMap());
-			data["message"] = message_response;
-			data["reply_pump"] = TOS_REPLY_PUMP;
-			if(response.has("error_code"))
-			{
-				data["error_code"] = response["error_code"];
-			}
-			if(response.has("certificate"))
-			{
-				data["certificate"] = response["certificate"];
-			}
-			
-			gViewerWindow->setShowProgress(FALSE);
-			LLFloaterReg::showInstance("message_critical", data);
-			LLEventPumps::instance().obtain(TOS_REPLY_PUMP)
-				.listen(TOS_LISTENER_NAME,
-						boost::bind(&LLLoginInstance::handleTOSResponse, 
-									this, _1, "read_critical"));
-		}
-		else if(reason_response == "update" || gSavedSettings.getBOOL("ForceMandatoryUpdate"))
+		LLSD data(LLSD::emptyMap());
+		data["message"] = message_response;
+		data["reply_pump"] = TOS_REPLY_PUMP;
+		gViewerWindow->setShowProgress(FALSE);
+		LLFloaterReg::showInstance("message_tos", data);
+		LLEventPumps::instance().obtain(TOS_REPLY_PUMP)
+			.listen(TOS_LISTENER_NAME,
+					boost::bind(&LLLoginInstance::handleTOSResponse, 
+								this, _1, "agree_to_tos"));
+	}
+	else if(reason_response == "critical")
+	{
+		LLSD data(LLSD::emptyMap());
+		data["message"] = message_response;
+		data["reply_pump"] = TOS_REPLY_PUMP;
+		if(response.has("error_code"))
 		{
-			gSavedSettings.setBOOL("ForceMandatoryUpdate", FALSE);
-			updateApp(true, message_response);
+			data["error_code"] = response["error_code"];
 		}
-		else if(reason_response == "optional")
+		if(response.has("certificate"))
 		{
-			updateApp(false, message_response);
+			data["certificate"] = response["certificate"];
 		}
-		else
-		{	
-			attemptComplete();
-		}	
+		
+		gViewerWindow->setShowProgress(FALSE);
+		LLFloaterReg::showInstance("message_critical", data);
+		LLEventPumps::instance().obtain(TOS_REPLY_PUMP)
+			.listen(TOS_LISTENER_NAME,
+					boost::bind(&LLLoginInstance::handleTOSResponse, 
+								this, _1, "read_critical"));
 	}
-	else // no user interaction
+	else if(reason_response == "update" || gSavedSettings.getBOOL("ForceMandatoryUpdate"))
 	{
-		attemptComplete();
+		gSavedSettings.setBOOL("ForceMandatoryUpdate", FALSE);
+		updateApp(true, message_response);
 	}
+	else if(reason_response == "optional")
+	{
+		updateApp(false, message_response);
+	}
+	else
+	{	
+		attemptComplete();
+	}	
 }
 
 void LLLoginInstance::handleLoginSuccess(const LLSD& event)
diff --git a/indra/newview/lllogininstance.h b/indra/newview/lllogininstance.h
index b872d7d1b1..8b53431219 100644
--- a/indra/newview/lllogininstance.h
+++ b/indra/newview/lllogininstance.h
@@ -61,12 +61,6 @@ public:
 	// Only valid when authSuccess == true.
 	const F64 getLastTransferRateBPS() { return mTransferRate; }
 
-		// Set whether this class will drive user interaction.
-	// If not, login failures like 'need tos agreement' will 
-	// end the login attempt.
-	void setUserInteraction(bool state) { mUserInteraction = state; } 
-	bool getUserInteraction() { return mUserInteraction; }
-
 	// Whether to tell login to skip optional update request.
 	// False by default.
 	void setSkipOptionalUpdate(bool state) { mSkipOptionalUpdate = state; }
@@ -100,7 +94,6 @@ private:
 	std::string mLoginState;
 	LLSD mRequestData;
 	LLSD mResponseData;
-	bool mUserInteraction; 
 	bool mSkipOptionalUpdate;
 	bool mAttemptComplete;
 	F64 mTransferRate;
diff --git a/indra/newview/llpanellogin.cpp b/indra/newview/llpanellogin.cpp
index c143aff2d4..8d3b1fd7a0 100644
--- a/indra/newview/llpanellogin.cpp
+++ b/indra/newview/llpanellogin.cpp
@@ -35,6 +35,7 @@
 #include "llsecondlifeurls.h"
 #include "v4color.h"
 
+#include "llappviewer.h"
 #include "llbutton.h"
 #include "llcheckboxctrl.h"
 #include "llcommandhandler.h"		// for secondlife:///app/login/
@@ -859,6 +860,13 @@ void LLPanelLogin::loadLoginPage()
 	char* curl_grid = curl_escape(LLGridManager::getInstance()->getGridLabel().c_str(), 0);
 	oStr << "&grid=" << curl_grid;
 	curl_free(curl_grid);
+	
+	// add OS info
+	char * os_info = curl_escape(LLAppViewer::instance()->getOSInfo().getOSStringSimple().c_str(), 0);
+	oStr << "&os=" << os_info;
+	curl_free(os_info);
+	
+	
 	gViewerWindow->setMenuBackgroundColor(false, !LLGridManager::getInstance()->isInProductionGrid());
 	gLoginMenuBarView->setBackgroundColor(gMenuBarView->getBackgroundColor());
 	
diff --git a/indra/newview/llpanelobjectinventory.cpp b/indra/newview/llpanelobjectinventory.cpp
index 211b9cf4b1..0b6267c9e6 100644
--- a/indra/newview/llpanelobjectinventory.cpp
+++ b/indra/newview/llpanelobjectinventory.cpp
@@ -766,22 +766,12 @@ BOOL LLTaskCategoryBridge::startDrag(EDragAndDropType* type, LLUUID* id) const
 		LLViewerObject* object = gObjectList.findObject(mPanel->getTaskUUID());
 		if(object)
 		{
-			const LLInventoryItem *inv = dynamic_cast<LLInventoryItem*>(object->getInventoryObject(mUUID));
-			if (inv)
+			const LLInventoryObject* cat = object->getInventoryObject(mUUID);
+			if ( (cat) && (move_inv_category_world_to_agent(mUUID, LLUUID::null, FALSE)) )
 			{
-				const LLPermissions& perm = inv->getPermissions();
-				bool can_copy = gAgent.allowOperation(PERM_COPY, perm,
-														GP_OBJECT_MANIPULATE);
-				if((can_copy && perm.allowTransferTo(gAgent.getID()))
-				   || object->permYouOwner())
-//				   || gAgent.isGodlike())
-
-				{
-					*type = LLViewerAssetType::lookupDragAndDropType(inv->getType());
-
-					*id = inv->getUUID();
-					return TRUE;
-				}
+				*type = LLViewerAssetType::lookupDragAndDropType(cat->getType());
+				*id = mUUID;
+				return TRUE;
 			}
 		}
 	}
diff --git a/indra/newview/llselectmgr.h b/indra/newview/llselectmgr.h
index 7478ed5f9a..65a9a493f6 100644
--- a/indra/newview/llselectmgr.h
+++ b/indra/newview/llselectmgr.h
@@ -235,7 +235,7 @@ public:
 	{
 		bool operator()(LLSelectNode* node);
 	};
-	typedef boost::filter_iterator<is_root, list_t::iterator > valid_root_iterator;
+	typedef boost::filter_iterator<is_valid_root, list_t::iterator > valid_root_iterator;
 	valid_root_iterator valid_root_begin() { return valid_root_iterator(mList.begin(), mList.end()); }
 	valid_root_iterator valid_root_end() { return valid_root_iterator(mList.end(), mList.end()); }
 	
diff --git a/indra/newview/llstartup.cpp b/indra/newview/llstartup.cpp
index 5617eea4c3..0eac7d5e2a 100644
--- a/indra/newview/llstartup.cpp
+++ b/indra/newview/llstartup.cpp
@@ -981,7 +981,6 @@ bool idle_startup()
 			login->setSkipOptionalUpdate(true);
 		}
 
-		login->setUserInteraction(show_connect_box);
 		login->setSerialNumber(LLAppViewer::instance()->getSerialNumber());
 		login->setLastExecEvent(gLastExecEvent);
 		login->setUpdaterLauncher(boost::bind(&LLAppViewer::launchUpdater, LLAppViewer::instance()));
diff --git a/indra/newview/lltexturecache.cpp b/indra/newview/lltexturecache.cpp
index 6a213309a0..92080d1fd7 100644
--- a/indra/newview/lltexturecache.cpp
+++ b/indra/newview/lltexturecache.cpp
@@ -1858,8 +1858,22 @@ void LLTextureCache::removeCachedTexture(const LLUUID& id)
 //called after mHeaderMutex is locked.
 void LLTextureCache::removeEntry(S32 idx, Entry& entry, std::string& filename)
 {
+ 	bool file_maybe_exists = true;	// Always attempt to remove when idx is invalid.
+
 	if(idx >= 0) //valid entry
 	{
+		if (entry.mBodySize == 0)	// Always attempt to remove when mBodySize > 0.
+		{
+		  if (LLAPRFile::isExist(filename, getLocalAPRFilePool()))		// Sanity check. Shouldn't exist when body size is 0.
+		  {
+			  LL_WARNS("TextureCache") << "Entry has body size of zero but file " << filename << " exists. Deleting this file, too." << LL_ENDL;
+		  }
+		  else
+		  {
+			  file_maybe_exists = false;
+		  }
+		}
+
 		entry.mImageSize = -1;
 		entry.mBodySize = 0;
 		mHeaderIDMap.erase(entry.mID);
@@ -1869,7 +1883,10 @@ void LLTextureCache::removeEntry(S32 idx, Entry& entry, std::string& filename)
 		mFreeList.insert(idx);	
 	}
 
-	LLAPRFile::remove(filename, getLocalAPRFilePool());		
+	if (file_maybe_exists)
+	{
+		LLAPRFile::remove(filename, getLocalAPRFilePool());		
+	}
 }
 
 bool LLTextureCache::removeFromCache(const LLUUID& id)
diff --git a/indra/newview/llviewermessage.cpp b/indra/newview/llviewermessage.cpp
index 7dc5d96689..6fc85a3944 100644
--- a/indra/newview/llviewermessage.cpp
+++ b/indra/newview/llviewermessage.cpp
@@ -171,31 +171,6 @@ const BOOL SCRIPT_QUESTION_IS_CAUTION[SCRIPT_PERMISSION_EOF] =
 	FALSE	// ControlYourCamera
 };
 
-// Extract channel and version from a string like "SL Web Viewer Beta 10.11.29.215604".
-// (channel: "SL Web Viewer Beta", version: "10.11.29.215604")
-static bool parse_version_info(const std::string& version_info, std::string& channel, std::string& ver)
-{
-	size_t last_space = version_info.rfind(" ");
-	channel = version_info;
-
-	if (last_space != std::string::npos)
-	{
-		try
-		{
-			ver = version_info.substr(last_space + 1);
-			channel.replace(last_space, ver.length() + 1, ""); // strip version
-		}
-		catch (std::out_of_range)
-		{
-			return false;
-		}
-
-		return true;
-	}
-
-	return false;
-}
-
 bool friendship_offer_callback(const LLSD& notification, const LLSD& response)
 {
 	S32 option = LLNotificationsUtil::getSelectedOption(notification, response);
@@ -3848,31 +3823,6 @@ void process_agent_movement_complete(LLMessageSystem* msg, void**)
 		return;
 	}
 
-	if (!gLastVersionChannel.empty())
-	{
-		std::string url = regionp->getCapability("ServerReleaseNotes");
-		if (url.empty())
-		{
-			// The capability hasn't arrived yet or is not supported,
-			// fall back to parsing server version channel.
-			std::string channel, ver;
-			if (!parse_version_info(version_channel, channel, ver))
-			{
-				llwarns << "Failed to parse server version channel (" << version_channel << ")" << llendl;
-			}
-
-			url = gSavedSettings.getString("ReleaseNotesURL");
-			LLSD args;
-			args["CHANNEL"] = LLWeb::escapeURL(channel);
-			args["VERSION"] = LLWeb::escapeURL(ver);
-			LLStringUtil::format(url, args);
-		}
-
-		LLSD args;
-		args["URL"] = url;
-		LLNotificationsUtil::add("ServerVersionChanged", args);
-	}
-
 	gLastVersionChannel = version_channel;
 }
 
diff --git a/indra/newview/skins/default/xui/da/notifications.xml b/indra/newview/skins/default/xui/da/notifications.xml
index 593e686d4c..27024f4eaa 100644
--- a/indra/newview/skins/default/xui/da/notifications.xml
+++ b/indra/newview/skins/default/xui/da/notifications.xml
@@ -1580,9 +1580,6 @@ Klik på Acceptér for at deltage eller Afvis for at afvise invitationen. Klik p
 	<notification name="VoiceCallGenericError">
 		En fejl er opstået under forsøget på at koble sig på stemme chatten [VOICE_CHANNEL_NAME].  Pråv venligst senere.
 	</notification>
-	<notification name="ServerVersionChanged">
-		Du er netop ankommet til en region der benytter en anden server version, hvilket kan influere på hastigheden. [[URL] For at se yderligere.]
-	</notification>
 	<notification name="UnsupportedCommandSLURL">
 		Den SLurl du klikkede på understøttes ikke.
 	</notification>
diff --git a/indra/newview/skins/default/xui/de/notifications.xml b/indra/newview/skins/default/xui/de/notifications.xml
index a2d0b5a170..c26b02ec8f 100644
--- a/indra/newview/skins/default/xui/de/notifications.xml
+++ b/indra/newview/skins/default/xui/de/notifications.xml
@@ -2691,9 +2691,6 @@ Klicken Sie auf  &apos;Akzeptieren &apos;, um dem Chat beizutreten, oder auf  &a
 	<notification name="VoiceCallGenericError">
 		Fehler beim Versuch, eine Voice-Chat-Verbindung zu [VOICE_CHANNEL_NAME] herzustellen.  Bitte versuchen Sie es erneut.
 	</notification>
-	<notification name="ServerVersionChanged">
-		Sie haben eine Region betreten, die eine andere Server-Version verwendet. Dies kann sich auf die Leistung auswirken. [[URL] Versionshinweise anzeigen.]
-	</notification>
 	<notification name="UnsupportedCommandSLURL">
 		Die SLurl, auf die Sie geklickt haben, wird nicht unterstützt.
 	</notification>
diff --git a/indra/newview/skins/default/xui/en/floater_web_content.xml b/indra/newview/skins/default/xui/en/floater_web_content.xml
index d90d0feda9..6ec063cd26 100644
--- a/indra/newview/skins/default/xui/en/floater_web_content.xml
+++ b/indra/newview/skins/default/xui/en/floater_web_content.xml
@@ -2,26 +2,26 @@
 <floater
   legacy_header_height="18"
   can_resize="true"
-  height="440"
+  height="775"
   layout="topleft"
-  min_height="140"
-  min_width="467"
+  min_height="400"
+  min_width="500"
   name="floater_web_content"
   help_topic="floater_web_content"
   save_rect="true"
   auto_tile="true"
   title=""
   initial_mime_type="text/html"
-  width="820">
+  width="735">
   <layout_stack
-    bottom="440"
+    bottom="775"
     follows="left|right|top|bottom"
     layout="topleft"
     left="5"
     name="stack1"
     orientation="vertical"
     top="20"
-    width="810">
+    width="725">
     <layout_panel
       auto_resize="false"
       default_tab_group="1"
@@ -32,14 +32,14 @@
       name="nav_controls"
       top="400"
       user_resize="false"
-      width="800">
+      width="725">
       <button
         image_overlay="Arrow_Left_Off"
-        image_disabled="PushButton_Disabled"
-        image_disabled_selected="PushButton_Disabled"
-        image_selected="PushButton_Selected"
-        image_unselected="PushButton_Off"
-        hover_glow_amount="0.15"
+		    image_disabled="PushButton_Disabled"
+		    image_disabled_selected="PushButton_Disabled"
+		    image_selected="PushButton_Selected"
+		    image_unselected="PushButton_Off"
+		    hover_glow_amount="0.15"
         tool_tip="Navigate back"
         follows="left|top"
         height="22"
@@ -53,10 +53,10 @@
       </button>
       <button
         image_overlay="Arrow_Right_Off"
-        image_disabled="PushButton_Disabled"
-        image_disabled_selected="PushButton_Disabled"
-        image_selected="PushButton_Selected"
-        image_unselected="PushButton_Off"
+		    image_disabled="PushButton_Disabled"
+		    image_disabled_selected="PushButton_Disabled"
+		    image_selected="PushButton_Selected"
+		    image_unselected="PushButton_Off"
         tool_tip="Navigate forward"
         follows="left|top"
         height="22"
@@ -70,10 +70,10 @@
       </button>
       <button
         image_overlay="Stop_Off"
-        image_disabled="PushButton_Disabled"
-        image_disabled_selected="PushButton_Disabled"
-        image_selected="PushButton_Selected"
-        image_unselected="PushButton_Off"
+		    image_disabled="PushButton_Disabled"
+		    image_disabled_selected="PushButton_Disabled"
+		    image_selected="PushButton_Selected"
+		    image_unselected="PushButton_Off"
         tool_tip="Stop navigation"
         enabled="true"
         follows="left|top"
@@ -88,10 +88,10 @@
       </button>
       <button
         image_overlay="Refresh_Off"
-        image_disabled="PushButton_Disabled"
-        image_disabled_selected="PushButton_Disabled"
-        image_selected="PushButton_Selected"
-        image_unselected="PushButton_Off"
+		    image_disabled="PushButton_Disabled"
+		    image_disabled_selected="PushButton_Disabled"
+		    image_selected="PushButton_Selected"
+		    image_unselected="PushButton_Off"
         tool_tip="Reload page"
         follows="left|top"
         height="22"
@@ -115,7 +115,7 @@
         combo_editor.select_on_focus="true"
         tool_tip="Enter URL here"
         top_delta="0"
-        width="702">
+        width="627">
         <combo_box.commit_callback
           function="WebContent.EnterAddress" />
       </combo_box>
@@ -125,24 +125,24 @@
         follows="top|right"
         image_name="Lock2"
         layout="topleft"
-        left_delta="656"
+        left_delta="575"
         top_delta="2"
         visible="false" 
         tool_tip="Secured Browsing"
         width="16" />
       <button
         image_overlay="ExternalBrowser_Off"
-        image_disabled="PushButton_Disabled"
-        image_disabled_selected="PushButton_Disabled"
-        image_selected="PushButton_Selected"
-        image_unselected="PushButton_Off"
+		    image_disabled="PushButton_Disabled"
+		    image_disabled_selected="PushButton_Disabled"
+		    image_selected="PushButton_Selected"
+		    image_unselected="PushButton_Off"
         tool_tip="Open current URL in your desktop browser"
         follows="right|top"
         enabled="true" 
         height="22"
         layout="topleft"
         name="popexternal"
-        right="800"
+        right="725"
         top_delta="-2"
         width="22">
         <button.commit_callback
@@ -166,16 +166,16 @@
         top="0"/>
       <text
         type="string"
-        length="100"
+        length="200"
         follows="bottom|left"
         height="20"
         layout="topleft"
         left_delta="0"
         name="statusbartext"
         parse_urls="false"
-        text_color="0.4 0.4 0.4 1" 
+        text_color="0.4 0.4 0.4 1"
         top_pad="5"
-        width="452"/>
+        width="520"/>
       <progress_bar
         color_bar="0.3 1.0 0.3 1"
         follows="bottom|right"
diff --git a/indra/newview/skins/default/xui/en/notifications.xml b/indra/newview/skins/default/xui/en/notifications.xml
index 6f21938bdb..f008042a81 100644
--- a/indra/newview/skins/default/xui/en/notifications.xml
+++ b/indra/newview/skins/default/xui/en/notifications.xml
@@ -6304,15 +6304,6 @@ An error has occurred while trying to connect to voice chat for [VOICE_CHANNEL_N
   </notification>
 
   <notification
-   duration="10"
-   icon="notifytip.tga"
-   name="ServerVersionChanged"
-   priority="high"
-   type="notifytip">
-You just entered a region using a different server version, which may affect performance. [[URL] View the release notes.]
-  </notification>
-
-  <notification
    icon="notifytip.tga"
    name="UnsupportedCommandSLURL"
    priority="high"
diff --git a/indra/newview/skins/default/xui/es/notifications.xml b/indra/newview/skins/default/xui/es/notifications.xml
index 14ce39e8fc..1c31066962 100644
--- a/indra/newview/skins/default/xui/es/notifications.xml
+++ b/indra/newview/skins/default/xui/es/notifications.xml
@@ -2678,9 +2678,6 @@ Pulsa Aceptar o Rehusar para coger o no la llamada. Pulsa Ignorar para ignorar a
 	<notification name="VoiceCallGenericError">
 		Se ha producido un error al intentar conectarte al [VOICE_CHANNEL_NAME]. Por favor, inténtalo más tarde.
 	</notification>
-	<notification name="ServerVersionChanged">
-		Acabas de entrar en una región que usa un servidor con una versión distinta, y esto puede influir en el funcionamiento. [[URL] Ver las notas de desarrollo].
-	</notification>
 	<notification name="UnsupportedCommandSLURL">
 		No se admite el formato de la SLurl que has pulsado.
 	</notification>
diff --git a/indra/newview/skins/default/xui/fr/notifications.xml b/indra/newview/skins/default/xui/fr/notifications.xml
index f0b0e63af0..2ccac5c19a 100644
--- a/indra/newview/skins/default/xui/fr/notifications.xml
+++ b/indra/newview/skins/default/xui/fr/notifications.xml
@@ -2674,9 +2674,6 @@ Pour y participer, cliquez sur Accepter. Sinon, cliquez sur Refuser. Pour ignore
 	<notification name="VoiceCallGenericError">
 		Une erreur est survenue pendant la connexion au chat vocal pour [VOICE_CHANNEL_NAME]. Veuillez réessayer ultérieurement.
 	</notification>
-	<notification name="ServerVersionChanged">
-		La région dans laquelle vous avez pénétré utilise une version de serveur différente, ce qui peut avoir un impact sur votre performance. [[URL] Consultez les notes de version.]
-	</notification>
 	<notification name="UnsupportedCommandSLURL">
 		La SLurl que vous avez saisie n&apos;est pas prise en charge.
 	</notification>
diff --git a/indra/newview/skins/default/xui/it/notifications.xml b/indra/newview/skins/default/xui/it/notifications.xml
index 5e53080c77..cce5888598 100644
--- a/indra/newview/skins/default/xui/it/notifications.xml
+++ b/indra/newview/skins/default/xui/it/notifications.xml
@@ -2623,9 +2623,6 @@ Clicca su Accetta per unirti alla chat oppure su Declina per declinare l&apos;in
 	<notification name="VoiceCallGenericError">
 		Si è verificato un errore durante il tentativo di collegarti a una voice chat con [VOICE_CHANNEL_NAME].  Riprova più tardi.
 	</notification>
-	<notification name="ServerVersionChanged">
-		Sei appena entrato in una regione che usa una versione differente del server: ciò potrebbe incidere sule prestazioni. [[URL] Visualizza le note sulla versione.]
-	</notification>
 	<notification name="UnsupportedCommandSLURL">
 		Lo SLurl su cui hai cliccato non è valido.
 	</notification>
diff --git a/indra/newview/skins/default/xui/ja/notifications.xml b/indra/newview/skins/default/xui/ja/notifications.xml
index f133bb361a..baec8c073c 100644
--- a/indra/newview/skins/default/xui/ja/notifications.xml
+++ b/indra/newview/skins/default/xui/ja/notifications.xml
@@ -2675,9 +2675,6 @@ M キーを押して変更します。
 	<notification name="VoiceCallGenericError">
 		[VOICE_CHANNEL_NAME] のボイスチャットに接続中に、エラーが発生しました。後でもう一度お試しください。
 	</notification>
-	<notification name="ServerVersionChanged">
-		サーバーのバージョンが異なるリージョンに来ました。パフォーマンスに影響することがあります。 [[URL] リリースノートを確認]
-	</notification>
 	<notification name="UnsupportedCommandSLURL">
 		クリックした SLurl はサポートされていません。
 	</notification>
diff --git a/indra/newview/skins/default/xui/nl/notifications.xml b/indra/newview/skins/default/xui/nl/notifications.xml
index be0c17d2ff..f27b83d3f9 100644
--- a/indra/newview/skins/default/xui/nl/notifications.xml
+++ b/indra/newview/skins/default/xui/nl/notifications.xml
@@ -3012,9 +3012,6 @@ Klik Accepteren om deel te nemen aan de chat of Afwijzen om de uitnodiging af te
 	<notification name="VoiceCallGenericError">
 		Er is een fout opgetreden tijdens het verbinden met voice chat voor [VOICE_CHANNEL_NAME]. Probeert u het later alstublieft opnieuw.
 	</notification>
-	<notification name="ServerVersionChanged">
-		De regio die u bent binnengetreden wordt onder een andere simulatorversie uitgevoerd. Klik dit bericht voor meer details.
-	</notification>
 	<notification name="UnableToOpenCommandURL">
 		De URL die u heeft geklikt kan niet binnen deze webbrowser worden geopend.
 	</notification>
diff --git a/indra/newview/skins/default/xui/pl/notifications.xml b/indra/newview/skins/default/xui/pl/notifications.xml
index 57a6b8b8ef..138125ff0b 100644
--- a/indra/newview/skins/default/xui/pl/notifications.xml
+++ b/indra/newview/skins/default/xui/pl/notifications.xml
@@ -2635,9 +2635,6 @@ Wybierz Zaakceptuj żeby zacząć czat albo Odmów żeby nie przyjąć zaproszen
 	<notification name="VoiceCallGenericError">
 		Błąd podczas łączenia z rozmową [VOICE_CHANNEL_NAME]. Spróbuj póżniej.
 	</notification>
-	<notification name="ServerVersionChanged">
-		Ten region używa innej wersji symulatora. Kliknij na tą wiadomość żeby uzyskać więcej informacji: [[URL] View the release notes.]
-	</notification>
 	<notification name="UnsupportedCommandSLURL">
 		Nie można otworzyć wybranego SLurl.
 	</notification>
diff --git a/indra/newview/skins/default/xui/pt/notifications.xml b/indra/newview/skins/default/xui/pt/notifications.xml
index a1855f2e89..9c3b9386e0 100644
--- a/indra/newview/skins/default/xui/pt/notifications.xml
+++ b/indra/newview/skins/default/xui/pt/notifications.xml
@@ -2658,9 +2658,6 @@ Clique em Aceitar para atender ou em Recusar para recusar este convite.  Clique
 	<notification name="VoiceCallGenericError">
 		Ocorreu um erro enquanto você tentava se conectar à conversa de voz de [VOICE_CHANNEL_NAME].  Favor tentar novamente mais tarde.
 	</notification>
-	<notification name="ServerVersionChanged">
-		Você chegou a uma região com uma versão diferente de servidor, que pode afetar o desempenho.  [[URL] Consultar notas da versão.]
-	</notification>
 	<notification name="UnsupportedCommandSLURL">
 		O SLurl no qual você clicou não é suportado.
 	</notification>
diff --git a/indra/viewer_components/updater/llupdaterservice.cpp b/indra/viewer_components/updater/llupdaterservice.cpp
index aa4983a3b6..ea242f45cd 100644
--- a/indra/viewer_components/updater/llupdaterservice.cpp
+++ b/indra/viewer_components/updater/llupdaterservice.cpp
@@ -361,6 +361,7 @@ void LLUpdaterServiceImpl::error(std::string const & message)
 {
 	if(mIsChecking)
 	{
+		setState(LLUpdaterService::TEMPORARY_ERROR);
 		restartTimer(mCheckPeriod);
 	}
 }
diff --git a/indra/viewer_components/updater/llupdaterservice.h b/indra/viewer_components/updater/llupdaterservice.h
index 421481bc43..450f19c1c6 100644
--- a/indra/viewer_components/updater/llupdaterservice.h
+++ b/indra/viewer_components/updater/llupdaterservice.h
@@ -59,6 +59,7 @@ public:
 	enum eUpdaterState {
 		INITIAL,
 		CHECKING_FOR_UPDATE,
+		TEMPORARY_ERROR,
 		DOWNLOADING,
 		INSTALLING,
 		UP_TO_DATE,