26 files changed, 1064 insertions, 204 deletions
diff --git a/indra/cmake/00-Common.cmake b/indra/cmake/00-Common.cmake
index db2cdb5ff8..dbe0cf5cd0 100644
--- a/indra/cmake/00-Common.cmake
+++ b/indra/cmake/00-Common.cmake
@@ -4,27 +4,28 @@
 
 include(Variables)
 
-
 # Portable compilation flags.
-
-if (EXISTS ${CMAKE_SOURCE_DIR}/llphysics)
-  # The release build should only offer to send crash reports if we're
-  # building from a Linden internal source tree.
-  set(release_crash_reports 1)
-else (EXISTS ${CMAKE_SOURCE_DIR}/llphysics)
-  set(release_crash_reports 0) 
-endif (EXISTS ${CMAKE_SOURCE_DIR}/llphysics)
-
 set(CMAKE_CXX_FLAGS_DEBUG "-D_DEBUG -DLL_DEBUG=1")
 set(CMAKE_CXX_FLAGS_RELEASE
-    "-DLL_RELEASE=1 -DLL_RELEASE_FOR_DOWNLOAD=1 -D_SECURE_SCL=0 -DLL_SEND_CRASH_REPORTS=${release_crash_reports} -DNDEBUG") 
+    "-DLL_RELEASE=1 -DLL_RELEASE_FOR_DOWNLOAD=1 -D_SECURE_SCL=0 -DNDEBUG") 
 
 set(CMAKE_CXX_FLAGS_RELWITHDEBINFO 
-    "-DLL_RELEASE=1 -D_SECURE_SCL=0 -DLL_SEND_CRASH_REPORTS=0 -DNDEBUG -DLL_RELEASE_WITH_DEBUG_INFO=1")
+    "-DLL_RELEASE=1 -D_SECURE_SCL=0 -DNDEBUG -DLL_RELEASE_WITH_DEBUG_INFO=1")
 
+# Configure crash reporting
+set(RELEASE_CRASH_REPORTING OFF CACHE BOOL "Enable use of crash reporting in release builds")
+set(NON_RELEASE_CRASH_REPORTING OFF CACHE BOOL "Enable use of crash reporting in developer builds")
 
-# Don't bother with a MinSizeRel build.
+if(RELEASE_CRASH_REPORTING)
+  set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -DLL_SEND_CRASH_REPORTS=1")
+endif()
+
+if(NON_RELEASE_CRASH_REPORTING)
+  set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} -DLL_SEND_CRASH_REPORTS=1")
+  set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -DLL_SEND_CRASH_REPORTS=1")
+endif()  
 
+# Don't bother with a MinSizeRel build.
 set(CMAKE_CONFIGURATION_TYPES "RelWithDebInfo;Release;Debug" CACHE STRING
     "Supported build types." FORCE)
 
diff --git a/indra/llcommon/llapr.cpp b/indra/llcommon/llapr.cpp
index 66ec5bad2c..d1c44c9403 100644
--- a/indra/llcommon/llapr.cpp
+++ b/indra/llcommon/llapr.cpp
@@ -28,6 +28,7 @@
 
 #include "linden_common.h"
 #include "llapr.h"
+#include "apr_dso.h"
 
 apr_pool_t *gAPRPoolp = NULL; // Global APR memory pool
 LLVolatileAPRPool *LLAPRFile::sAPRFilePoolp = NULL ; //global volatile APR memory pool.
@@ -279,14 +280,31 @@ bool ll_apr_warn_status(apr_status_t status)
 {
 	if(APR_SUCCESS == status) return false;
 	char buf[MAX_STRING];	/* Flawfinder: ignore */
-	apr_strerror(status, buf, MAX_STRING);
+	apr_strerror(status, buf, sizeof(buf));
 	LL_WARNS("APR") << "APR: " << buf << LL_ENDL;
 	return true;
 }
 
+bool ll_apr_warn_status(apr_status_t status, apr_dso_handle_t *handle)
+{
+    bool result = ll_apr_warn_status(status);
+    // Despite observed truncation of actual Mac dylib load errors, increasing
+    // this buffer to more than MAX_STRING doesn't help: it appears that APR
+    // stores the output in a fixed 255-character internal buffer. (*sigh*)
+    char buf[MAX_STRING];           /* Flawfinder: ignore */
+    apr_dso_error(handle, buf, sizeof(buf));
+    LL_WARNS("APR") << "APR: " << buf << LL_ENDL;
+    return result;
+}
+
 void ll_apr_assert_status(apr_status_t status)
 {
-	llassert(ll_apr_warn_status(status) == false);
+	llassert(! ll_apr_warn_status(status));
+}
+
+void ll_apr_assert_status(apr_status_t status, apr_dso_handle_t *handle)
+{
+    llassert(! ll_apr_warn_status(status, handle));
 }
 
 //---------------------------------------------------------------------
diff --git a/indra/llcommon/llapr.h b/indra/llcommon/llapr.h
index 4930270af8..af33ce666f 100644
--- a/indra/llcommon/llapr.h
+++ b/indra/llcommon/llapr.h
@@ -53,6 +53,8 @@
 extern LL_COMMON_API apr_thread_mutex_t* gLogMutexp;
 extern apr_thread_mutex_t* gCallStacksLogMutexp;
 
+struct apr_dso_handle_t;
+
 /** 
  * @brief initialize the common apr constructs -- apr itself, the
  * global pool, and a mutex.
@@ -259,8 +261,11 @@ public:
  * @return Returns <code>true</code> if status is an error condition.
  */
 bool LL_COMMON_API ll_apr_warn_status(apr_status_t status);
+/// There's a whole other APR error-message function if you pass a DSO handle.
+bool LL_COMMON_API ll_apr_warn_status(apr_status_t status, apr_dso_handle_t* handle);
 
 void LL_COMMON_API ll_apr_assert_status(apr_status_t status);
+void LL_COMMON_API ll_apr_assert_status(apr_status_t status, apr_dso_handle_t* handle);
 
 extern "C" LL_COMMON_API apr_pool_t* gAPRPoolp; // Global APR memory pool
 
diff --git a/indra/llcommon/llevents.cpp b/indra/llcommon/llevents.cpp
index 84a6620a77..97e2bdeb57 100644
--- a/indra/llcommon/llevents.cpp
+++ b/indra/llcommon/llevents.cpp
@@ -475,7 +475,7 @@ void LLEventPump::stopListening(const std::string& name)
 *****************************************************************************/
 bool LLEventStream::post(const LLSD& event)
 {
-    if (! mEnabled)
+    if (! mEnabled || !mSignal)
     {
         return false;
     }
@@ -515,6 +515,8 @@ bool LLEventQueue::post(const LLSD& event)
 
 void LLEventQueue::flush()
 {
+	if(!mSignal) return;
+		
     // Consider the case when a given listener on this LLEventQueue posts yet
     // another event on the same queue. If we loop over mEventQueue directly,
     // we'll end up processing all those events during the same flush() call
diff --git a/indra/newview/CMakeLists.txt b/indra/newview/CMakeLists.txt
index 1176edc130..2eb91fd837 100644
--- a/indra/newview/CMakeLists.txt
+++ b/indra/newview/CMakeLists.txt
@@ -1845,29 +1845,31 @@ if (PACKAGE)
     set(VIEWER_COPY_MANIFEST copy_l_viewer_manifest)
   endif (LINUX)
 
-  if(CMAKE_CFG_INTDIR STREQUAL ".")
+  if(RELEASE_CRASH_REPORTING OR NON_RELEASE_CRASH_REPORTING)
+    if(CMAKE_CFG_INTDIR STREQUAL ".")
       set(LLBUILD_CONFIG ${CMAKE_BUILD_TYPE})
-  else(CMAKE_CFG_INTDIR STREQUAL ".")
+    else(CMAKE_CFG_INTDIR STREQUAL ".")
       # set LLBUILD_CONFIG to be a shell variable evaluated at build time
       # reflecting the configuration we are currently building.
       set(LLBUILD_CONFIG ${CMAKE_CFG_INTDIR})
-  endif(CMAKE_CFG_INTDIR STREQUAL ".")
-  add_custom_command(OUTPUT "${VIEWER_SYMBOL_FILE}"
-    COMMAND "${PYTHON_EXECUTABLE}"
-    ARGS
-      "${CMAKE_CURRENT_SOURCE_DIR}/generate_breakpad_symbols.py"
-      "${LLBUILD_CONFIG}"
-      "${VIEWER_DIST_DIR}"
-      "${VIEWER_EXE_GLOBS}"
-      "${VIEWER_LIB_GLOB}"
-      "${LIBS_PREBUILT_DIR}/${LL_ARCH_DIR}/bin/dump_syms"
-      "${VIEWER_SYMBOL_FILE}"
-    DEPENDS generate_breakpad_symbols.py
-    VERBATIM
-  )
-  add_custom_target(generate_breakpad_symbols DEPENDS "${VIEWER_SYMBOL_FILE}")
-  add_dependencies(generate_breakpad_symbols "${VIEWER_BINARY_NAME}" "${VIEWER_COPY_MANIFEST}")
-  add_dependencies(package generate_breakpad_symbols)
+    endif(CMAKE_CFG_INTDIR STREQUAL ".")
+    add_custom_command(OUTPUT "${VIEWER_SYMBOL_FILE}"
+      COMMAND "${PYTHON_EXECUTABLE}"
+      ARGS
+        "${CMAKE_CURRENT_SOURCE_DIR}/generate_breakpad_symbols.py"
+        "${LLBUILD_CONFIG}"
+        "${VIEWER_DIST_DIR}"
+        "${VIEWER_EXE_GLOBS}"
+        "${VIEWER_LIB_GLOB}"
+        "${LIBS_PREBUILT_DIR}/${LL_ARCH_DIR}/bin/dump_syms"
+        "${VIEWER_SYMBOL_FILE}"
+        DEPENDS generate_breakpad_symbols.py
+        VERBATIM)
+
+    add_custom_target(generate_breakpad_symbols DEPENDS "${VIEWER_SYMBOL_FILE}")
+    add_dependencies(generate_breakpad_symbols "${VIEWER_BINARY_NAME}" "${VIEWER_COPY_MANIFEST}")
+    add_dependencies(package generate_breakpad_symbols)
+  endif(RELEASE_CRASH_REPORTING OR NON_RELEASE_CRASH_REPORTING)
 endif (PACKAGE)
 
 if (LL_TESTS)
diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index 06992d2b52..4d79019ad8 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -9980,6 +9980,17 @@
       <key>Value</key>
       <real>500.0</real>
     </map>
+    <key>UpdaterMaximumBandwidth</key>
+    <map>
+      <key>Comment</key>
+      <string>Maximum allowable downstream bandwidth for updater service (kilo bits per second)</string>
+      <key>Persist</key>
+      <integer>1</integer>
+      <key>Type</key>
+      <string>F32</string>
+      <key>Value</key>
+      <real>500.0</real>
+    </map>
     <key>ToolTipDelay</key>
     <map>
       <key>Comment</key>
@@ -11080,16 +11091,16 @@
       <key>Value</key>
       <integer>15</integer>
     </map>
-    <key>UpdaterServiceActive</key>
+    <key>UpdaterServiceSetting</key>
     <map>
       <key>Comment</key>
-      <string>Enable or disable the updater service.</string>
+      <string>Configure updater service.</string>
       <key>Persist</key>
       <integer>1</integer>
       <key>Type</key>
-      <string>Boolean</string>
+      <string>U32</string>
       <key>Value</key>
-      <integer>1</integer>
+      <integer>3</integer>
     </map>
     <key>UpdaterServiceCheckPeriod</key>
     <map>
diff --git a/indra/newview/llappviewer.cpp b/indra/newview/llappviewer.cpp
index 5c0c5adabe..3a98c23e05 100644
--- a/indra/newview/llappviewer.cpp
+++ b/indra/newview/llappviewer.cpp
@@ -80,6 +80,8 @@
 #include "llfeaturemanager.h"
 #include "llurlmatch.h"
 #include "lltextutil.h"
+#include "lllogininstance.h"
+#include "llprogressview.h"
 
 #include "llweb.h"
 #include "llsecondlifeurls.h"
@@ -602,10 +604,14 @@ LLAppViewer::LLAppViewer() :
 	setupErrorHandling();
 	sInstance = this;
 	gLoggedInTime.stop();
+	
+	LLLoginInstance::instance().setUpdaterService(mUpdater.get());
 }
 
 LLAppViewer::~LLAppViewer()
 {
+	LLLoginInstance::instance().setUpdaterService(0);
+	
 	destroyMainloopTimeout();
 
 	// If we got to this destructor somehow, the app didn't hang.
@@ -2432,26 +2438,120 @@ bool LLAppViewer::initConfiguration()
 }
 
 namespace {
-    // *TODO - decide if there's a better place for this function.
+    // *TODO - decide if there's a better place for these functions.
     // do we need a file llupdaterui.cpp or something? -brad
+
+	void apply_update_callback(LLSD const & notification, LLSD const & response)
+	{
+		lldebugs << "LLUpdate user response: " << response << llendl;
+		if(response["OK_okcancelbuttons"].asBoolean())
+		{
+			llinfos << "LLUpdate restarting viewer" << llendl;
+			static const bool install_if_ready = true;
+			// *HACK - this lets us launch the installer immediately for now
+			LLUpdaterService().startChecking(install_if_ready);
+		}
+	}
+	
+	void apply_update_ok_callback(LLSD const & notification, LLSD const & response)
+	{
+		llinfos << "LLUpdate restarting viewer" << llendl;
+		static const bool install_if_ready = true;
+		// *HACK - this lets us launch the installer immediately for now
+		LLUpdaterService().startChecking(install_if_ready);
+	}
+	
+	void on_update_downloaded(LLSD const & data)
+	{
+		std::string notification_name;
+		void (*apply_callback)(LLSD const &, LLSD const &) = NULL;
+
+		if(data["required"].asBoolean())
+		{
+			apply_callback = &apply_update_ok_callback;
+			if(LLStartUp::getStartupState() <= STATE_LOGIN_WAIT)
+			{
+				// The user never saw the progress bar.
+				notification_name = "RequiredUpdateDownloadedVerboseDialog";
+			}
+			else
+			{
+				notification_name = "RequiredUpdateDownloadedDialog";
+			}
+		}
+		else
+		{
+			apply_callback = &apply_update_callback;
+			if(LLStartUp::getStartupState() < STATE_STARTED)
+			{
+				// CHOP-262 we need to use a different notification
+				// method prior to login.
+				notification_name = "DownloadBackgroundDialog";
+			}
+			else
+			{
+				notification_name = "DownloadBackgroundTip";
+			}
+		}
+
+		LLSD substitutions;
+		substitutions["VERSION"] = data["version"];
+
+		// truncate version at the rightmost '.' 
+		std::string version_short(data["version"]);
+		size_t short_length = version_short.rfind('.');
+		if (short_length != std::string::npos)
+		{
+			version_short.resize(short_length);
+		}
+
+		LLUIString relnotes_url("[RELEASE_NOTES_BASE_URL][CHANNEL_URL]/[VERSION_SHORT]");
+		relnotes_url.setArg("[VERSION_SHORT]", version_short);
+
+		// *TODO thread the update service's response through to this point
+		std::string const & channel = LLVersionInfo::getChannel();
+		boost::shared_ptr<char> channel_escaped(curl_escape(channel.c_str(), channel.size()), &curl_free);
+
+		relnotes_url.setArg("[CHANNEL_URL]", channel_escaped.get());
+		relnotes_url.setArg("[RELEASE_NOTES_BASE_URL]", LLTrans::getString("RELEASE_NOTES_BASE_URL"));
+		substitutions["RELEASE_NOTES_FULL_URL"] = relnotes_url.getString();
+
+		LLNotificationsUtil::add(notification_name, substitutions, LLSD(), apply_callback);
+	}
+
+	void install_error_callback(LLSD const & notification, LLSD const & response)
+	{
+		LLAppViewer::instance()->forceQuit();
+	}
+	
     bool notify_update(LLSD const & evt)
     {
+		std::string notification_name;
 		switch (evt["type"].asInteger())
 		{
 			case LLUpdaterService::DOWNLOAD_COMPLETE:
-				LLNotificationsUtil::add("DownloadBackground");
+				on_update_downloaded(evt);
 				break;
 			case LLUpdaterService::INSTALL_ERROR:
-				LLNotificationsUtil::add("FailedUpdateInstall");
+				if(evt["required"].asBoolean()) {
+					LLNotificationsUtil::add("FailedRequiredUpdateInstall", LLSD(), LLSD(), &install_error_callback);
+				} else {
+					LLNotificationsUtil::add("FailedUpdateInstall");
+				}
 				break;
 			default:
-				llinfos << "unhandled update event " << evt << llendl;
 				break;
 		}
 
 		// let others also handle this event by default
         return false;
     }
+	
+	bool on_bandwidth_throttle(LLUpdaterService * updater, LLSD const & evt)
+	{
+		updater->setBandwidthLimit(evt.asInteger() * (1024/8));
+		return false; // Let others receive this event.
+	};
 };
 
 void LLAppViewer::initUpdater()
@@ -2474,7 +2574,10 @@ void LLAppViewer::initUpdater()
 						 channel, 
 						 version);
  	mUpdater->setCheckPeriod(check_period);
-	if(gSavedSettings.getBOOL("UpdaterServiceActive"))
+	mUpdater->setBandwidthLimit((int)gSavedSettings.getF32("UpdaterMaximumBandwidth") * (1024/8));
+	gSavedSettings.getControl("UpdaterMaximumBandwidth")->getSignal()->
+		connect(boost::bind(&on_bandwidth_throttle, mUpdater.get(), _2));
+	if(gSavedSettings.getU32("UpdaterServiceSetting"))
 	{
 		bool install_if_ready = true;
 		mUpdater->startChecking(install_if_ready);
@@ -2901,8 +3004,10 @@ void LLAppViewer::handleViewerCrash()
 		pApp->removeMarkerFile(false);
 	}
 	
+#if LL_SEND_CRASH_REPORTS
 	// Call to pure virtual, handled by platform specific llappviewer instance.
 	pApp->handleCrashReporting(); 
+#endif
     
 	return;
 }
@@ -3113,7 +3218,7 @@ static LLNotificationFunctorRegistration finish_quit_reg("ConfirmQuit", finish_q
 
 void LLAppViewer::userQuit()
 {
-	if (gDisconnected)
+	if (gDisconnected || gViewerWindow->getProgressView()->getVisible())
 	{
 		requestQuit();
 	}
@@ -4629,6 +4734,35 @@ void LLAppViewer::loadEventHostModule(S32 listen_port)
 		return;
 	}
 
+	LL_INFOS("eventhost") << "Found lleventhost at '" << dso_path << "'" << LL_ENDL;
+#if ! defined(LL_WINDOWS)
+	{
+		std::string outfile("/tmp/lleventhost.file.out");
+		std::string command("file '" + dso_path + "' > '" + outfile + "' 2>&1");
+		int rc = system(command.c_str());
+		if (rc != 0)
+		{
+			LL_WARNS("eventhost") << command << " ==> " << rc << ':' << LL_ENDL;
+		}
+		else
+		{
+			LL_INFOS("eventhost") << command << ':' << LL_ENDL;
+		}
+		{
+			std::ifstream reader(outfile.c_str());
+			std::string line;
+			while (std::getline(reader, line))
+			{
+				size_t len = line.length();
+				if (len && line[len-1] == '\n')
+					line.erase(len-1);
+				LL_INFOS("eventhost") << line << LL_ENDL;
+			}
+		}
+		remove(outfile.c_str());
+	}
+#endif // LL_WINDOWS
+
 	apr_dso_handle_t * eventhost_dso_handle = NULL;
 	apr_pool_t * eventhost_dso_memory_pool = NULL;
 
@@ -4637,13 +4771,13 @@ void LLAppViewer::loadEventHostModule(S32 listen_port)
 	apr_status_t rv = apr_dso_load(&eventhost_dso_handle,
 		dso_path.c_str(),
 		eventhost_dso_memory_pool);
-	ll_apr_assert_status(rv);
+	llassert_always(! ll_apr_warn_status(rv, eventhost_dso_handle));
 	llassert_always(eventhost_dso_handle != NULL);
 
 	int (*ll_plugin_start_func)(LLSD const &) = NULL;
 	rv = apr_dso_sym((apr_dso_handle_sym_t*)&ll_plugin_start_func, eventhost_dso_handle, "ll_plugin_start");
 
-	ll_apr_assert_status(rv);
+	llassert_always(! ll_apr_warn_status(rv, eventhost_dso_handle));
 	llassert_always(ll_plugin_start_func != NULL);
 
 	LLSD args;
diff --git a/indra/newview/lllogininstance.cpp b/indra/newview/lllogininstance.cpp
index 0546803784..d866db1829 100644
--- a/indra/newview/lllogininstance.cpp
+++ b/indra/newview/lllogininstance.cpp
@@ -49,18 +49,421 @@
 #include "llnotifications.h"
 #include "llwindow.h"
 #include "llviewerwindow.h"
+#include "llprogressview.h"
 #if LL_LINUX || LL_SOLARIS
 #include "lltrans.h"
 #endif
 #include "llsecapi.h"
 #include "llstartup.h"
 #include "llmachineid.h"
+#include "llupdaterservice.h"
+#include "llevents.h"
+#include "llnotificationsutil.h"
+#include "llappviewer.h"
+
+#include <boost/scoped_ptr.hpp>
+#include <sstream>
+
+class LLLoginInstance::Disposable {
+public:
+	virtual ~Disposable() {}
+};
+
+namespace {
+	class MandatoryUpdateMachine:
+		public LLLoginInstance::Disposable
+	{
+	public:
+		MandatoryUpdateMachine(LLLoginInstance & loginInstance, LLUpdaterService & updaterService);
+		
+		void start(void);
+		
+	private:
+		class State;
+		class CheckingForUpdate;
+		class Error;
+		class ReadyToInstall; 
+		class StartingUpdaterService;
+		class WaitingForDownload;
+		
+		LLLoginInstance & mLoginInstance;
+		boost::scoped_ptr<State> mState;
+		LLUpdaterService & mUpdaterService;
+		
+		void setCurrentState(State * newState);
+	};
+
+	
+	class MandatoryUpdateMachine::State {
+	public:
+		virtual ~State() {}
+		virtual void enter(void) {}
+		virtual void exit(void) {}
+	};
+	
+	
+	class MandatoryUpdateMachine::CheckingForUpdate:
+	public MandatoryUpdateMachine::State
+	{
+	public:
+		CheckingForUpdate(MandatoryUpdateMachine & machine);
+		
+		virtual void enter(void);
+		virtual void exit(void);
+		
+	private:
+		LLTempBoundListener mConnection;
+		MandatoryUpdateMachine & mMachine;
+		LLProgressView * mProgressView;
+		
+		bool onEvent(LLSD const & event);
+	};
+	
+	
+	class MandatoryUpdateMachine::Error:
+	public MandatoryUpdateMachine::State
+	{
+	public:
+		Error(MandatoryUpdateMachine & machine);
+		
+		virtual void enter(void);
+		virtual void exit(void);
+		void onButtonClicked(const LLSD &, const LLSD &);
+		
+	private:
+		MandatoryUpdateMachine & mMachine;
+	};
+	
+	
+	class MandatoryUpdateMachine::ReadyToInstall:
+	public MandatoryUpdateMachine::State
+	{
+	public:
+		ReadyToInstall(MandatoryUpdateMachine & machine);
+		
+		virtual void enter(void);
+		virtual void exit(void);
+		
+	private:
+		MandatoryUpdateMachine & mMachine;
+	};
+	
+	
+	class MandatoryUpdateMachine::StartingUpdaterService:
+	public MandatoryUpdateMachine::State
+	{
+	public:
+		StartingUpdaterService(MandatoryUpdateMachine & machine);
+		
+		virtual void enter(void);
+		virtual void exit(void);
+		void onButtonClicked(const LLSD & uiform, const LLSD & result);
+	private:
+		MandatoryUpdateMachine & mMachine;
+	};
+	
+	
+	class MandatoryUpdateMachine::WaitingForDownload:
+		public MandatoryUpdateMachine::State
+	{
+	public:
+		WaitingForDownload(MandatoryUpdateMachine & machine);
+		
+		virtual void enter(void);
+		virtual void exit(void);
+		
+	private:
+		LLTempBoundListener mConnection;
+		MandatoryUpdateMachine & mMachine;
+		LLProgressView * mProgressView;
+		
+		bool onEvent(LLSD const & event);
+	};
+}
 
 static const char * const TOS_REPLY_PUMP = "lllogininstance_tos_callback";
 static const char * const TOS_LISTENER_NAME = "lllogininstance_tos";
 
 std::string construct_start_string();
 
+
+
+// MandatoryUpdateMachine
+//-----------------------------------------------------------------------------
+
+
+MandatoryUpdateMachine::MandatoryUpdateMachine(LLLoginInstance & loginInstance, LLUpdaterService & updaterService):
+	mLoginInstance(loginInstance),
+	mUpdaterService(updaterService)
+{
+	; // No op.
+}
+
+
+void MandatoryUpdateMachine::start(void)
+{
+	llinfos << "starting manditory update machine" << llendl;
+	
+	if(mUpdaterService.isChecking()) {
+		switch(mUpdaterService.getState()) {
+			case LLUpdaterService::UP_TO_DATE:
+				mUpdaterService.stopChecking();
+				mUpdaterService.startChecking();
+				// Fall through.
+			case LLUpdaterService::INITIAL:
+			case LLUpdaterService::CHECKING_FOR_UPDATE:
+				setCurrentState(new CheckingForUpdate(*this));
+				break;
+			case LLUpdaterService::DOWNLOADING:
+				setCurrentState(new WaitingForDownload(*this));
+				break;
+			case LLUpdaterService::TERMINAL:
+				if(LLUpdaterService::updateReadyToInstall()) {
+					setCurrentState(new ReadyToInstall(*this));
+				} else {
+					setCurrentState(new Error(*this));
+				}
+				break;
+			case LLUpdaterService::FAILURE:
+				setCurrentState(new Error(*this));
+				break;
+			default:
+				llassert(!"unpossible case");
+				break;
+		}
+	} else {
+		setCurrentState(new StartingUpdaterService(*this));
+	}
+}
+
+
+void MandatoryUpdateMachine::setCurrentState(State * newStatePointer)
+{
+	{
+		boost::scoped_ptr<State> newState(newStatePointer);
+		if(mState != 0) mState->exit();
+		mState.swap(newState);
+		
+		// Old state will be deleted on exit from this block before the new state
+		// is entered.
+	}
+	if(mState != 0) mState->enter();
+}
+
+
+
+// MandatoryUpdateMachine::CheckingForUpdate
+//-----------------------------------------------------------------------------
+
+
+MandatoryUpdateMachine::CheckingForUpdate::CheckingForUpdate(MandatoryUpdateMachine & machine):
+	mMachine(machine)
+{
+	; // No op.
+}
+
+
+void MandatoryUpdateMachine::CheckingForUpdate::enter(void)
+{
+	llinfos << "entering checking for update" << llendl;
+	
+	mProgressView = gViewerWindow->getProgressView();
+	mProgressView->setMessage("Looking for update...");
+	mProgressView->setText("There is a required update for your Second Life installation.");
+	mProgressView->setPercent(0);
+	mProgressView->setVisible(true);
+	mConnection = LLEventPumps::instance().obtain(LLUpdaterService::pumpName()).
+		listen("MandatoryUpdateMachine::CheckingForUpdate", boost::bind(&MandatoryUpdateMachine::CheckingForUpdate::onEvent, this, _1));
+}
+
+
+void MandatoryUpdateMachine::CheckingForUpdate::exit(void)
+{
+}
+
+
+bool MandatoryUpdateMachine::CheckingForUpdate::onEvent(LLSD const & event)
+{
+	if(event["type"].asInteger() == LLUpdaterService::STATE_CHANGE) {
+		switch(event["state"].asInteger()) {
+			case LLUpdaterService::DOWNLOADING:
+				mMachine.setCurrentState(new WaitingForDownload(mMachine));
+				break;
+			case LLUpdaterService::UP_TO_DATE:
+			case LLUpdaterService::TERMINAL:
+			case LLUpdaterService::FAILURE:
+				mProgressView->setVisible(false);
+				mMachine.setCurrentState(new Error(mMachine));
+				break;
+			case LLUpdaterService::INSTALLING:
+				llassert(!"can't possibly be installing");
+				break;
+			default:
+				break;
+		}
+	} else {
+		; // Ignore.
+	}
+	
+	return false;
+}
+
+
+
+// MandatoryUpdateMachine::Error
+//-----------------------------------------------------------------------------
+
+
+MandatoryUpdateMachine::Error::Error(MandatoryUpdateMachine & machine):
+	mMachine(machine)
+{
+	; // No op.
+}
+
+
+void MandatoryUpdateMachine::Error::enter(void)
+{
+	llinfos << "entering error" << llendl;
+	LLNotificationsUtil::add("FailedUpdateInstall", LLSD(), LLSD(), boost::bind(&MandatoryUpdateMachine::Error::onButtonClicked, this, _1, _2));
+}
+
+
+void MandatoryUpdateMachine::Error::exit(void)
+{
+	LLAppViewer::instance()->forceQuit();
+}
+
+
+void MandatoryUpdateMachine::Error::onButtonClicked(const LLSD &, const LLSD &)
+{
+	mMachine.setCurrentState(0);
+}
+
+
+
+// MandatoryUpdateMachine::ReadyToInstall
+//-----------------------------------------------------------------------------
+
+
+MandatoryUpdateMachine::ReadyToInstall::ReadyToInstall(MandatoryUpdateMachine & machine):
+	mMachine(machine)
+{
+	; // No op.
+}
+
+
+void MandatoryUpdateMachine::ReadyToInstall::enter(void)
+{
+	llinfos << "entering ready to install" << llendl;
+	// Open update ready dialog.
+}
+
+
+void MandatoryUpdateMachine::ReadyToInstall::exit(void)
+{
+	// Restart viewer.
+}
+
+
+
+// MandatoryUpdateMachine::StartingUpdaterService
+//-----------------------------------------------------------------------------
+
+
+MandatoryUpdateMachine::StartingUpdaterService::StartingUpdaterService(MandatoryUpdateMachine & machine):
+	mMachine(machine)
+{
+	; // No op.
+}
+
+
+void MandatoryUpdateMachine::StartingUpdaterService::enter(void)
+{
+	llinfos << "entering start update service" << llendl;
+	LLNotificationsUtil::add("UpdaterServiceNotRunning", LLSD(), LLSD(), boost::bind(&MandatoryUpdateMachine::StartingUpdaterService::onButtonClicked, this, _1, _2));
+}
+
+
+void MandatoryUpdateMachine::StartingUpdaterService::exit(void)
+{
+	; // No op.
+}
+
+
+void MandatoryUpdateMachine::StartingUpdaterService::onButtonClicked(const LLSD & uiform, const LLSD & result)
+{
+	if(result["OK_okcancelbuttons"].asBoolean()) {
+		mMachine.mUpdaterService.startChecking(false);
+		mMachine.setCurrentState(new CheckingForUpdate(mMachine));
+	} else {
+		LLAppViewer::instance()->forceQuit();
+	}
+}
+
+
+
+// MandatoryUpdateMachine::WaitingForDownload
+//-----------------------------------------------------------------------------
+
+
+MandatoryUpdateMachine::WaitingForDownload::WaitingForDownload(MandatoryUpdateMachine & machine):
+	mMachine(machine),
+	mProgressView(0)
+{
+	; // No op.
+}
+
+
+void MandatoryUpdateMachine::WaitingForDownload::enter(void)
+{
+	llinfos << "entering waiting for download" << llendl;
+	mProgressView = gViewerWindow->getProgressView();
+	mProgressView->setMessage("Downloading update...");
+	std::ostringstream stream;
+	stream << "There is a required update for your Second Life installation." << std::endl <<
+		"Version " << mMachine.mUpdaterService.updatedVersion();
+	mProgressView->setText(stream.str());
+	mProgressView->setPercent(0);
+	mProgressView->setVisible(true);
+	mConnection = LLEventPumps::instance().obtain(LLUpdaterService::pumpName()).
+		listen("MandatoryUpdateMachine::CheckingForUpdate", boost::bind(&MandatoryUpdateMachine::WaitingForDownload::onEvent, this, _1));
+}
+
+
+void MandatoryUpdateMachine::WaitingForDownload::exit(void)
+{
+	mProgressView->setVisible(false);
+}
+
+
+bool MandatoryUpdateMachine::WaitingForDownload::onEvent(LLSD const & event)
+{
+	switch(event["type"].asInteger()) {
+		case LLUpdaterService::DOWNLOAD_COMPLETE:
+			mMachine.setCurrentState(new ReadyToInstall(mMachine));
+			break;
+		case LLUpdaterService::DOWNLOAD_ERROR:
+			mMachine.setCurrentState(new Error(mMachine));
+			break;
+		case LLUpdaterService::PROGRESS: {
+			double downloadSize = event["download_size"].asReal();
+			double bytesDownloaded = event["bytes_downloaded"].asReal();
+			mProgressView->setPercent(100. * bytesDownloaded / downloadSize);
+			break;
+		}
+		default:
+			break;
+	}
+
+	return false;
+}
+
+
+
+// LLLoginInstance
+//-----------------------------------------------------------------------------
+
+
 LLLoginInstance::LLLoginInstance() :
 	mLoginModule(new LLLogin()),
 	mNotifications(NULL),
@@ -69,7 +472,8 @@ LLLoginInstance::LLLoginInstance() :
 	mSkipOptionalUpdate(false),
 	mAttemptComplete(false),
 	mTransferRate(0.0f),
-	mDispatcher("LLLoginInstance", "change")
+	mDispatcher("LLLoginInstance", "change"),
+	mUpdaterService(0)
 {
 	mLoginModule->getEventPump().listen("lllogininstance", 
 		boost::bind(&LLLoginInstance::handleLoginEvent, this, _1));
@@ -354,6 +758,15 @@ bool LLLoginInstance::handleTOSResponse(bool accepted, const std::string& key)
 
 void LLLoginInstance::updateApp(bool mandatory, const std::string& auth_msg)
 {
+	if(mandatory)
+	{
+		gViewerWindow->setShowProgress(false);
+		MandatoryUpdateMachine * machine = new MandatoryUpdateMachine(*this, *mUpdaterService);
+		mUpdateStateMachine.reset(machine);
+		machine->start();
+		return;
+	}
+	
 	// store off config state, as we might quit soon
 	gSavedSettings.saveToFile(gSavedSettings.getString("ClientSettingsFile"), TRUE);	
 	LLUIColorTable::instance().saveUserSettings();
diff --git a/indra/newview/lllogininstance.h b/indra/newview/lllogininstance.h
index 159e05046c..b872d7d1b1 100644
--- a/indra/newview/lllogininstance.h
+++ b/indra/newview/lllogininstance.h
@@ -34,12 +34,15 @@
 class LLLogin;
 class LLEventStream;
 class LLNotificationsInterface;
+class LLUpdaterService;
 
 // This class hosts the login module and is used to 
 // negotiate user authentication attempts.
 class LLLoginInstance : public LLSingleton<LLLoginInstance>
 {
 public:
+	class Disposable;
+
 	LLLoginInstance();
 	~LLLoginInstance();
 
@@ -75,6 +78,7 @@ public:
 	typedef boost::function<void()> UpdaterLauncherCallback;
 	void setUpdaterLauncher(const UpdaterLauncherCallback& ulc) { mUpdaterLauncher = ulc; }
 
+	void setUpdaterService(LLUpdaterService * updaterService) { mUpdaterService = updaterService; }
 private:
 	void constructAuthParams(LLPointer<LLCredential> user_credentials);
 	void updateApp(bool mandatory, const std::string& message);
@@ -104,6 +108,8 @@ private:
 	int mLastExecEvent;
 	UpdaterLauncherCallback mUpdaterLauncher;
 	LLEventDispatcher mDispatcher;
+	LLUpdaterService * mUpdaterService;	
+	boost::scoped_ptr<Disposable> mUpdateStateMachine;
 };
 
 #endif
diff --git a/indra/newview/llpanellogin.cpp b/indra/newview/llpanellogin.cpp
index 2e4be78be1..9d936d1d0c 100644
--- a/indra/newview/llpanellogin.cpp
+++ b/indra/newview/llpanellogin.cpp
@@ -73,7 +73,6 @@
 #endif  // LL_WINDOWS
 
 #include "llsdserialize.h"
-#define USE_VIEWER_AUTH 0
 
 const S32 BLACK_BORDER_HEIGHT = 160;
 const S32 MAX_PASSWORD = 16;
@@ -190,10 +189,6 @@ LLPanelLogin::LLPanelLogin(const LLRect &rect,
 
 	buildFromFile( "panel_login.xml");
 	
-#if USE_VIEWER_AUTH
-	//leave room for the login menu bar
-	setRect(LLRect(0, rect.getHeight()-18, rect.getWidth(), 0)); 
-#endif
 	// Legacy login web page is hidden under the menu bar.
 	// Adjust reg-in-client web browser widget to not be hidden.
 	if (gSavedSettings.getBOOL("RegInClient"))
@@ -205,7 +200,6 @@ LLPanelLogin::LLPanelLogin(const LLRect &rect,
 		reshape(rect.getWidth(), rect.getHeight());
 	}
 
-#if !USE_VIEWER_AUTH
 	getChild<LLLineEditor>("password_edit")->setKeystrokeCallback(onPassKey, this);
 
 	// change z sort of clickable text to be behind buttons
@@ -248,7 +242,6 @@ LLPanelLogin::LLPanelLogin(const LLRect &rect,
 
 	LLTextBox* need_help_text = getChild<LLTextBox>("login_help");
 	need_help_text->setClickedCallback(onClickHelp, NULL);
-#endif    
 	
 	// get the web browser control
 	LLMediaCtrl* web_browser = getChild<LLMediaCtrl>("login_html");
@@ -275,15 +268,9 @@ void LLPanelLogin::reshapeBrowser()
 	LLMediaCtrl* web_browser = getChild<LLMediaCtrl>("login_html");
 	LLRect rect = gViewerWindow->getWindowRectScaled();
 	LLRect html_rect;
-#if USE_VIEWER_AUTH
-	html_rect.setCenterAndSize( 
-		rect.getCenterX() - 2, rect.getCenterY(), 
-		rect.getWidth() + 6, rect.getHeight());
-#else
 	html_rect.setCenterAndSize(
 		rect.getCenterX() - 2, rect.getCenterY() + 40,
 		rect.getWidth() + 6, rect.getHeight() - 78 );
-#endif
 	web_browser->setRect( html_rect );
 	web_browser->reshape( html_rect.getWidth(), html_rect.getHeight(), TRUE );
 	reshape( rect.getWidth(), rect.getHeight(), 1 );
@@ -306,7 +293,6 @@ void LLPanelLogin::setSiteIsAlive( bool alive )
 	else
 	// the site is not available (missing page, server down, other badness)
 	{
-#if !USE_VIEWER_AUTH
 		if ( web_browser )
 		{
 			// hide browser control (revealing default one)
@@ -315,16 +301,6 @@ void LLPanelLogin::setSiteIsAlive( bool alive )
 			// mark as unavailable
 			mHtmlAvailable = FALSE;
 		}
-#else
-
-		if ( web_browser )
-		{	
-			web_browser->navigateToLocalPage( "loading-error" , "index.html" );
-
-			// mark as available
-			mHtmlAvailable = TRUE;
-		}
-#endif
 	}
 }
 
@@ -364,7 +340,6 @@ void LLPanelLogin::draw()
 
 		if ( mHtmlAvailable )
 		{
-#if !USE_VIEWER_AUTH
 			if (getChild<LLView>("login_widgets")->getVisible())
 			{
 				// draw a background box in black
@@ -373,7 +348,6 @@ void LLPanelLogin::draw()
 				// just the blue background to the native client UI
 				mLogoImage->draw(0, -264, width + 8, mLogoImage->getHeight());
 			}
-#endif
 		}
 		else
 		{
@@ -419,12 +393,6 @@ void LLPanelLogin::setFocus(BOOL b)
 // static
 void LLPanelLogin::giveFocus()
 {
-#if USE_VIEWER_AUTH
-	if (sInstance)
-	{
-		sInstance->setFocus(TRUE);
-	}
-#else
 	if( sInstance )
 	{
 		// Grab focus and move cursor to first blank input field
@@ -453,17 +421,18 @@ void LLPanelLogin::giveFocus()
 			edit->selectAll();
 		}
 	}
-#endif
 }
 
 // static
 void LLPanelLogin::showLoginWidgets()
 {
+	// *NOTE: Mani - This may or may not be obselete code.
+	// It seems to be part of the defunct? reg-in-client project.
 	sInstance->getChildView("login_widgets")->setVisible( true);
 	LLMediaCtrl* web_browser = sInstance->getChild<LLMediaCtrl>("login_html");
 	sInstance->reshapeBrowser();
 	// *TODO: Append all the usual login parameters, like first_login=Y etc.
-	std::string splash_screen_url = sInstance->getString("real_url");
+	std::string splash_screen_url = LLGridManager::getInstance()->getLoginPage();
 	web_browser->navigateTo( splash_screen_url, "text/html" );
 	LLUICtrl* username_edit = sInstance->getChild<LLUICtrl>("username_edit");
 	username_edit->setFocus(TRUE);
@@ -833,73 +802,6 @@ void LLPanelLogin::loadLoginPage()
 	curl_free(curl_grid);
 	gViewerWindow->setMenuBackgroundColor(false, !LLGridManager::getInstance()->isInProductionGrid());
 	gLoginMenuBarView->setBackgroundColor(gMenuBarView->getBackgroundColor());
-
-
-#if USE_VIEWER_AUTH
-	LLURLSimString::sInstance.parse();
-
-	std::string location;
-	std::string region;
-	std::string password;
-	
-	if (LLURLSimString::parse())
-	{
-		std::ostringstream oRegionStr;
-		location = "specify";
-		oRegionStr << LLURLSimString::sInstance.mSimName << "/" << LLURLSimString::sInstance.mX << "/"
-			 << LLURLSimString::sInstance.mY << "/"
-			 << LLURLSimString::sInstance.mZ;
-		region = oRegionStr.str();
-	}
-	else
-	{
-		location = gSavedSettings.getString("LoginLocation");
-	}
-	
-	std::string username;
-
-    if(gSavedSettings.getLLSD("UserLoginInfo").size() == 3)
-    {
-        LLSD cmd_line_login = gSavedSettings.getLLSD("UserLoginInfo");
-		username = cmd_line_login[0].asString() + " " + cmd_line_login[1];
-        password = cmd_line_login[2].asString();
-    }
-    	
-	
-	char* curl_region = curl_escape(region.c_str(), 0);
-
-	oStr <<"username=" << username <<
-		 "&location=" << location <<	"&region=" << curl_region;
-	
-	curl_free(curl_region);
-
-	if (!password.empty())
-	{
-		oStr << "&password=" << password;
-	}
-	else if (!(password = load_password_from_disk()).empty())
-	{
-		oStr << "&password=$1$" << password;
-	}
-	if (gAutoLogin)
-	{
-		oStr << "&auto_login=TRUE";
-	}
-	if (gSavedSettings.getBOOL("ShowStartLocation"))
-	{
-		oStr << "&show_start_location=TRUE";
-	}	
-	if (gSavedSettings.getBOOL("RememberPassword"))
-	{
-		oStr << "&remember_password=TRUE";
-	}	
-#ifndef	LL_RELEASE_FOR_DOWNLOAD
-	oStr << "&show_grid=TRUE";
-#else
-	if (gSavedSettings.getBOOL("ForceShowGrid"))
-		oStr << "&show_grid=TRUE";
-#endif
-#endif
 	
 	LLMediaCtrl* web_browser = sInstance->getChild<LLMediaCtrl>("login_html");
 
diff --git a/indra/newview/llprogressview.cpp b/indra/newview/llprogressview.cpp
index db02d76139..31fde5d58a 100644
--- a/indra/newview/llprogressview.cpp
+++ b/indra/newview/llprogressview.cpp
@@ -133,13 +133,13 @@ void LLProgressView::setVisible(BOOL visible)
 		mFadeTimer.start();
 	}
 	// showing progress view
-	else if (!getVisible() && visible)
+	else if (visible && (!getVisible() || mFadeTimer.getStarted()))
 	{
 		setFocus(TRUE);
 		mFadeTimer.stop();
 		mProgressTimer.start();
 		LLPanel::setVisible(TRUE);
-	}
+	} 
 }
 
 
diff --git a/indra/newview/llviewercontrol.cpp b/indra/newview/llviewercontrol.cpp
index 622d09c600..8c5a52c187 100644
--- a/indra/newview/llviewercontrol.cpp
+++ b/indra/newview/llviewercontrol.cpp
@@ -504,9 +504,10 @@ bool toggle_show_object_render_cost(const LLSD& newvalue)
 
 void toggle_updater_service_active(LLControlVariable* control, const LLSD& new_value)
 {
-    if(new_value.asBoolean())
+    if(new_value.asInteger())
     {
-        LLUpdaterService().startChecking();
+		LLUpdaterService update_service;
+		if(!update_service.isChecking()) update_service.startChecking();
     }
     else
     {
@@ -661,7 +662,7 @@ void settings_setup_listeners()
 	gSavedSettings.getControl("ShowNavbarFavoritesPanel")->getSignal()->connect(boost::bind(&toggle_show_favorites_panel, _2));
 	gSavedSettings.getControl("ShowMiniLocationPanel")->getSignal()->connect(boost::bind(&toggle_show_mini_location_panel, _2));
 	gSavedSettings.getControl("ShowObjectRenderingCost")->getSignal()->connect(boost::bind(&toggle_show_object_render_cost, _2));
-	gSavedSettings.getControl("UpdaterServiceActive")->getSignal()->connect(&toggle_updater_service_active);
+	gSavedSettings.getControl("UpdaterServiceSetting")->getSignal()->connect(&toggle_updater_service_active);
 	gSavedSettings.getControl("ForceShowGrid")->getSignal()->connect(boost::bind(&handleForceShowGrid, _2));
 	gSavedSettings.getControl("RenderTransparentWater")->getSignal()->connect(boost::bind(&handleRenderTransparentWaterChanged, _2));
 }
diff --git a/indra/newview/skins/default/xui/en/notifications.xml b/indra/newview/skins/default/xui/en/notifications.xml
index b1fd579c6f..ec08c990e6 100644
--- a/indra/newview/skins/default/xui/en/notifications.xml
+++ b/indra/newview/skins/default/xui/en/notifications.xml
@@ -2901,12 +2901,80 @@ http://secondlife.com/download.
      name="okbutton"
      yestext="OK"/>
   </notification>
+
   <notification
-   icon="notifytip.tga"
-   name="DownloadBackground"
-   type="notifytip">
-An updated version of [APP_NAME] has been downloaded.
-It will be applied the next time you restart [APP_NAME]
+   icon="alertmodal.tga"
+   name="FailedRequiredUpdateInstall"
+   type="alertmodal">
+We were unable to install a required update. 
+You will be unable to log in until [APP_NAME] has been updated.
+
+Please download and install the latest viewer from
+http://secondlife.com/download.
+    <usetemplate
+     name="okbutton"
+     yestext="Quit"/>
+  </notification>
+
+  <notification
+   icon="alertmodal.tga"
+   name="UpdaterServiceNotRunning"
+   type="alertmodal">
+There is a required update for your Second Life Installation.
+
+You may download this update from http://www.secondlife.com/downloads
+or you can install it now.
+    <usetemplate
+     name="okcancelbuttons"
+     notext="Quit Second Life"
+     yestext="Download and install now"/>
+  </notification>
+
+  <notification
+   icon="notify.tga"
+   name="DownloadBackgroundTip"
+   type="notify">
+We have downloaded an update to your [APP_NAME] installation.
+Version [VERSION] [[RELEASE_NOTES_FULL_URL] Information about this update]
+    <usetemplate
+     name="okcancelbuttons"
+     notext="Later..."
+     yestext="Install now and restart [APP_NAME]"/>
+  </notification>
+
+  <notification
+ icon="alertmodal.tga"
+ name="DownloadBackgroundDialog"
+ type="alertmodal">
+We have downloaded an update to your [APP_NAME] installation.
+Version [VERSION] [[RELEASE_NOTES_FULL_URL] Information about this update]
+    <usetemplate
+     name="okcancelbuttons"
+     notext="Later..."
+     yestext="Install now and restart [APP_NAME]"/>
+  </notification>
+  
+  <notification
+ icon="alertmodal.tga"
+ name="RequiredUpdateDownloadedVerboseDialog"
+ type="alertmodal">
+We have downloaded a required software update.
+Version [VERSION]
+
+We must restart [APP_NAME] to install the update.
+    <usetemplate
+     name="okbutton"
+     yestext="OK"/>
+  </notification>
+  
+  <notification
+ icon="alertmodal.tga"
+ name="RequiredUpdateDownloadedDialog"
+ type="alertmodal">
+We must restart [APP_NAME] to install the update.
+    <usetemplate
+     name="okbutton"
+     yestext="OK"/>
   </notification>
 
   <notification
diff --git a/indra/newview/skins/default/xui/en/panel_login.xml b/indra/newview/skins/default/xui/en/panel_login.xml
index e3cd61c5aa..e3512c6748 100644
--- a/indra/newview/skins/default/xui/en/panel_login.xml
+++ b/indra/newview/skins/default/xui/en/panel_login.xml
@@ -12,11 +12,7 @@ top="600"
      name="create_account_url">
        http://join.secondlife.com/
 </panel.string>
-<panel.string
-     name="real_url" translate="false">
-       http://secondlife.com/app/login/
-</panel.string>
-    <string name="reg_in_client_url" translate="false">
+<string name="reg_in_client_url" translate="false">
      http://secondlife.eniac15.lindenlab.com/reg-in-client/
 </string>
 <panel.string
diff --git a/indra/newview/skins/default/xui/en/panel_preferences_setup.xml b/indra/newview/skins/default/xui/en/panel_preferences_setup.xml
index 584bd1ea9d..901a1257e0 100644
--- a/indra/newview/skins/default/xui/en/panel_preferences_setup.xml
+++ b/indra/newview/skins/default/xui/en/panel_preferences_setup.xml
@@ -142,7 +142,7 @@
    layout="topleft"
    left="80"
    name="Cache location"
-   top_delta="40"
+   top_delta="20"
    width="300">
     Cache location:
   </text>
@@ -341,20 +341,41 @@
    name="web_proxy_port"
    top_delta="0"
    width="145" />
-
-  <check_box
-    top_delta="2"
-    enabled="true"
-    follows="left|top"
-    height="18"
-    initial_value="true"
-    control_name="UpdaterServiceActive"
-    label="Automatically download and install [APP_NAME] updates"
-    left="30"
-    mouse_opaque="true"
-    name="updater_service_active"
-    radio_style="false"
-    width="400"
-    top_pad="10"/>
-
+  <text
+     type="string"
+     length="1"
+     follows="left|top"
+     height="10"
+     layout="topleft"
+     left="30"
+     name="Software updates:"
+     mouse_opaque="false"
+     top_pad="5"
+     width="300">
+    Software updates:
+  </text>
+  <combo_box
+     control_name="UpdaterServiceSetting"
+     follows="left|top"
+     height="23"
+     layout="topleft"
+     left_delta="50"
+	 top_pad="5"
+     name="updater_service_combobox"
+     width="300">
+        <combo_box.item
+         label="Install automatically"
+         name="Install_automatically"
+         value="3" />
+      <!--
+        <combo_box.item
+         label="Ask before installing"
+         name="Install_ask"
+         value="1" />
+      -->
+        <combo_box.item
+         label="Download and install updates manually"
+         name="Install_manual"
+         value="0" />
+  </combo_box>
 </panel>
diff --git a/indra/newview/tests/lllogininstance_test.cpp b/indra/newview/tests/lllogininstance_test.cpp
index 309e9e9ee3..9e321db889 100644
--- a/indra/newview/tests/lllogininstance_test.cpp
+++ b/indra/newview/tests/lllogininstance_test.cpp
@@ -40,6 +40,7 @@
 
 #if defined(LL_WINDOWS)
 #pragma warning(disable: 4355)      // using 'this' in base-class ctor initializer expr
+#pragma warning(disable: 4702)      // disable 'unreachable code' so we can safely use skip().
 #endif
 
 // Constants
@@ -68,6 +69,7 @@ static bool gDisconnectCalled = false;
 
 #include "../llviewerwindow.h"
 void LLViewerWindow::setShowProgress(BOOL show) {}
+LLProgressView * LLViewerWindow::getProgressView(void) const { return 0; }
 
 LLViewerWindow* gViewerWindow;
 
@@ -185,6 +187,41 @@ const std::string &LLVersionInfo::getChannelAndVersion() { return VIEWERLOGIN_VE
 const std::string &LLVersionInfo::getChannel() { return VIEWERLOGIN_CHANNEL; }
 
 //-----------------------------------------------------------------------------
+#include "../llappviewer.h"
+void LLAppViewer::forceQuit(void) {}
+LLAppViewer * LLAppViewer::sInstance = 0;
+
+//-----------------------------------------------------------------------------
+#include "llnotificationsutil.h"
+LLNotificationPtr LLNotificationsUtil::add(const std::string& name, 
+					  const LLSD& substitutions, 
+					  const LLSD& payload, 
+					  boost::function<void (const LLSD&, const LLSD&)> functor) { return LLNotificationPtr((LLNotification*)0); }
+
+
+//-----------------------------------------------------------------------------
+#include "llupdaterservice.h"
+
+std::string const & LLUpdaterService::pumpName(void)
+{
+	static std::string wakka = "wakka wakka wakka";
+	return wakka;
+}
+bool LLUpdaterService::updateReadyToInstall(void) { return false; }
+void LLUpdaterService::initialize(const std::string& protocol_version,
+				const std::string& url, 
+				const std::string& path,
+				const std::string& channel,
+								  const std::string& version) {}
+
+void LLUpdaterService::setCheckPeriod(unsigned int seconds) {}
+void LLUpdaterService::startChecking(bool install_if_ready) {}
+void LLUpdaterService::stopChecking() {}
+bool LLUpdaterService::isChecking() { return false; }
+LLUpdaterService::eUpdaterState LLUpdaterService::getState() { return INITIAL; }
+std::string LLUpdaterService::updatedVersion() { return ""; }
+
+//-----------------------------------------------------------------------------
 #include "llnotifications.h"
 #include "llfloaterreg.h"
 static std::string gTOSType;
@@ -198,6 +235,12 @@ LLFloater* LLFloaterReg::showInstance(const std::string& name, const LLSD& key,
 	return NULL;
 }
 
+//----------------------------------------------------------------------------
+#include "../llprogressview.h"
+void LLProgressView::setText(std::string const &){}
+void LLProgressView::setPercent(float){}
+void LLProgressView::setMessage(std::string const &){}
+
 //-----------------------------------------------------------------------------
 // LLNotifications
 class MockNotifications : public LLNotificationsInterface
@@ -435,6 +478,8 @@ namespace tut
     template<> template<>
     void lllogininstance_object::test<3>()
     {
+		skip();
+		
 		set_test_name("Test Mandatory Update User Accepts");
 
 		// Part 1 - Mandatory Update, with User accepts response.
@@ -462,6 +507,8 @@ namespace tut
 	template<> template<>
     void lllogininstance_object::test<4>()
     {
+		skip();
+		
 		set_test_name("Test Mandatory Update User Decline");
 
 		// Test connect with update needed.
diff --git a/indra/viewer_components/updater/llupdatedownloader.cpp b/indra/viewer_components/updater/llupdatedownloader.cpp
index c17a50e242..e88d1bf811 100644
--- a/indra/viewer_components/updater/llupdatedownloader.cpp
+++ b/indra/viewer_components/updater/llupdatedownloader.cpp
@@ -24,17 +24,20 @@
  */
 
 #include "linden_common.h"
+
+#include "llupdatedownloader.h"
+
 #include <stdexcept>
 #include <boost/format.hpp>
 #include <boost/lexical_cast.hpp>
 #include <curl/curl.h>
 #include "lldir.h"
+#include "llevents.h"
 #include "llfile.h"
 #include "llmd5.h"
 #include "llsd.h"
 #include "llsdserialize.h"
 #include "llthread.h"
-#include "llupdatedownloader.h"
 #include "llupdaterservice.h"
 
 
@@ -45,18 +48,25 @@ public:
 	Implementation(LLUpdateDownloader::Client & client);
 	~Implementation();
 	void cancel(void);
-	void download(LLURI const & uri, std::string const & hash);
+	void download(LLURI const & uri,
+				  std::string const & hash,
+				  std::string const & updateVersion,
+				  bool required);
 	bool isDownloading(void);
 	size_t onHeader(void * header, size_t size);
 	size_t onBody(void * header, size_t size);
+	int onProgress(double downloadSize, double bytesDownloaded);
 	void resume(void);
+	void setBandwidthLimit(U64 bytesPerSecond);
 	
 private:
+	curl_off_t mBandwidthLimit;
 	bool mCancelled;
 	LLUpdateDownloader::Client & mClient;
 	CURL * mCurl;
 	LLSD mDownloadData;
 	llofstream mDownloadStream;
+	unsigned char mDownloadPercent;
 	std::string mDownloadRecordPath;
 	curl_slist * mHeaderList;
 	
@@ -113,9 +123,12 @@ void LLUpdateDownloader::cancel(void)
 }
 
 
-void LLUpdateDownloader::download(LLURI const & uri, std::string const & hash)
+void LLUpdateDownloader::download(LLURI const & uri,
+								  std::string const & hash,
+								  std::string const & updateVersion,
+								  bool required)
 {
-	mImplementation->download(uri, hash);
+	mImplementation->download(uri, hash, updateVersion, required);
 }
 
 
@@ -131,6 +144,12 @@ void LLUpdateDownloader::resume(void)
 }
 
 
+void LLUpdateDownloader::setBandwidthLimit(U64 bytesPerSecond)
+{
+	mImplementation->setBandwidthLimit(bytesPerSecond);
+}
+
+
 
 // LLUpdateDownloader::Implementation
 //-----------------------------------------------------------------------------
@@ -149,14 +168,27 @@ namespace {
 		size_t bytes = blockSize * blocks;
 		return reinterpret_cast<LLUpdateDownloader::Implementation *>(downloader)->onHeader(data, bytes);
 	}
+
+
+	int progress_callback(void * downloader,
+						  double dowloadTotal,
+						  double downloadNow,
+						  double uploadTotal,
+						  double uploadNow)
+	{
+		return reinterpret_cast<LLUpdateDownloader::Implementation *>(downloader)->
+			onProgress(dowloadTotal, downloadNow);
+	}
 }
 
 
 LLUpdateDownloader::Implementation::Implementation(LLUpdateDownloader::Client & client):
 	LLThread("LLUpdateDownloader"),
+	mBandwidthLimit(0),
 	mCancelled(false),
 	mClient(client),
 	mCurl(0),
+	mDownloadPercent(0),
 	mHeaderList(0)
 {
 	CURLcode code = curl_global_init(CURL_GLOBAL_ALL); // Just in case.
@@ -182,12 +214,17 @@ void LLUpdateDownloader::Implementation::cancel(void)
 }
 	
 
-void LLUpdateDownloader::Implementation::download(LLURI const & uri, std::string const & hash)
+void LLUpdateDownloader::Implementation::download(LLURI const & uri,
+												  std::string const & hash,
+												  std::string const & updateVersion,
+												  bool required)
 {
 	if(isDownloading()) mClient.downloadError("download in progress");
 
 	mDownloadRecordPath = downloadMarkerPath();
 	mDownloadData = LLSD();
+	mDownloadData["required"] = required;
+	mDownloadData["update_version"] = updateVersion;
 	try {
 		startDownloading(uri, hash);
 	} catch(DownloadError const & e) {
@@ -233,12 +270,18 @@ void LLUpdateDownloader::Implementation::resume(void)
 				resumeDownloading(fileStatus.st_size);
 			} else if(!validateDownload()) {
 				LLFile::remove(filePath);
-				download(LLURI(mDownloadData["url"].asString()), mDownloadData["hash"].asString());
+				download(LLURI(mDownloadData["url"].asString()), 
+						 mDownloadData["hash"].asString(),
+						 mDownloadData["update_version"].asString(),
+						 mDownloadData["required"].asBoolean());
 			} else {
 				mClient.downloadComplete(mDownloadData);
 			}
 		} else {
-			download(LLURI(mDownloadData["url"].asString()), mDownloadData["hash"].asString());
+			download(LLURI(mDownloadData["url"].asString()), 
+					 mDownloadData["hash"].asString(),
+					 mDownloadData["update_version"].asString(),
+					 mDownloadData["required"].asBoolean());
 		}
 	} catch(DownloadError & e) {
 		mClient.downloadError(e.what());
@@ -246,6 +289,20 @@ void LLUpdateDownloader::Implementation::resume(void)
 }
 
 
+void LLUpdateDownloader::Implementation::setBandwidthLimit(U64 bytesPerSecond)
+{
+	if((mBandwidthLimit != bytesPerSecond) && isDownloading() && !mDownloadData["required"].asBoolean()) {
+		llassert(mCurl != 0);
+		mBandwidthLimit = bytesPerSecond;
+		CURLcode code = curl_easy_setopt(mCurl, CURLOPT_MAX_RECV_SPEED_LARGE, &mBandwidthLimit);
+		if(code != CURLE_OK) LL_WARNS("UpdateDownload") << 
+			"unable to change dowload bandwidth" << LL_ENDL;
+	} else {
+		mBandwidthLimit = bytesPerSecond;
+	}
+}
+
+
 size_t LLUpdateDownloader::Implementation::onHeader(void * buffer, size_t size)
 {
 	char const * headerPtr = reinterpret_cast<const char *> (buffer);
@@ -290,6 +347,30 @@ size_t LLUpdateDownloader::Implementation::onBody(void * buffer, size_t size)
 }
 
 
+int LLUpdateDownloader::Implementation::onProgress(double downloadSize, double bytesDownloaded)
+{
+	int downloadPercent = static_cast<int>(100. * (bytesDownloaded / downloadSize));
+	if(downloadPercent > mDownloadPercent) {
+		mDownloadPercent = downloadPercent;
+		
+		LLSD event;
+		event["pump"] = LLUpdaterService::pumpName();
+		LLSD payload;
+		payload["type"] = LLSD(LLUpdaterService::PROGRESS);
+		payload["download_size"] = downloadSize;
+		payload["bytes_downloaded"] = bytesDownloaded;
+		event["payload"] = payload;
+		LLEventPumps::instance().obtain("mainlooprepeater").post(event);
+		
+		LL_INFOS("UpdateDownload") << "progress event " << payload << LL_ENDL;
+	} else {
+		; // Keep events to a reasonalbe number.
+	}
+	
+	return 0;
+}
+
+
 void LLUpdateDownloader::Implementation::run(void)
 {
 	CURLcode code = curl_easy_perform(mCurl);
@@ -343,6 +424,14 @@ void LLUpdateDownloader::Implementation::initializeCurlGet(std::string const & u
 	}
 	throwOnCurlError(curl_easy_setopt(mCurl, CURLOPT_HTTPGET, true));
 	throwOnCurlError(curl_easy_setopt(mCurl, CURLOPT_URL, url.c_str()));
+	throwOnCurlError(curl_easy_setopt(mCurl, CURLOPT_PROGRESSFUNCTION, &progress_callback));
+	throwOnCurlError(curl_easy_setopt(mCurl, CURLOPT_PROGRESSDATA, this));
+	throwOnCurlError(curl_easy_setopt(mCurl, CURLOPT_NOPROGRESS, false));
+	// if it's a required update set the bandwidth limit to 0 (unlimited)
+	curl_off_t limit = mDownloadData["required"].asBoolean() ? 0 : mBandwidthLimit;
+	throwOnCurlError(curl_easy_setopt(mCurl, CURLOPT_MAX_RECV_SPEED_LARGE, limit));
+	
+	mDownloadPercent = 0;
 }
 
 
diff --git a/indra/viewer_components/updater/llupdatedownloader.h b/indra/viewer_components/updater/llupdatedownloader.h
index 1b3d7480fd..0d635640cf 100644
--- a/indra/viewer_components/updater/llupdatedownloader.h
+++ b/indra/viewer_components/updater/llupdatedownloader.h
@@ -52,7 +52,10 @@ public:
 	void cancel(void);
 	
 	// Start a new download.
-	void download(LLURI const & uri, std::string const & hash);
+	void download(LLURI const & uri,
+				  std::string const & hash, 
+				  std::string const & updateVersion,
+				  bool required=false);
 	
 	// Returns true if a download is in progress.
 	bool isDownloading(void);
@@ -60,6 +63,9 @@ public:
 	// Resume a partial download.
 	void resume(void);
 	
+	// Set a limit on the dowload rate.
+	void setBandwidthLimit(U64 bytesPerSecond);
+	
 private:
 	boost::shared_ptr<Implementation> mImplementation;
 };
@@ -76,6 +82,7 @@ public:
 	// url - source (remote) location
 	// hash - the md5 sum that should match the installer file.
 	// path - destination (local) location
+	// required - boolean indicating if this is a required update.
 	// size - the size of the installer in bytes
 	virtual void downloadComplete(LLSD const & data) = 0;
 	
diff --git a/indra/viewer_components/updater/llupdateinstaller.cpp b/indra/viewer_components/updater/llupdateinstaller.cpp
index 6e69bcf28b..d450c068ad 100644
--- a/indra/viewer_components/updater/llupdateinstaller.cpp
+++ b/indra/viewer_components/updater/llupdateinstaller.cpp
@@ -31,6 +31,12 @@
 #include "lldir.h"
 
 
+#if defined(LL_WINDOWS)
+#pragma warning(disable: 4702)      // disable 'unreachable code' so we can use lexical_cast (really!).
+#endif
+#include <boost/lexical_cast.hpp>
+
+
 namespace {
 	class RelocateError {};
 	
@@ -47,7 +53,10 @@ namespace {
 }
 
 
-int ll_install_update(std::string const & script, std::string const & updatePath, LLInstallScriptMode mode)
+int ll_install_update(std::string const & script,
+					  std::string const & updatePath,
+					  bool required,
+					  LLInstallScriptMode mode)
 {
 	std::string actualScriptPath;
 	switch(mode) {
@@ -73,6 +82,7 @@ int ll_install_update(std::string const & script, std::string const & updatePath
 	launcher.setExecutable(actualScriptPath);
 	launcher.addArgument(updatePath);
 	launcher.addArgument(ll_install_failed_marker_path().c_str());
+	launcher.addArgument(boost::lexical_cast<std::string>(required));
 	int result = launcher.launch();
 	launcher.orphan();
 	
diff --git a/indra/viewer_components/updater/llupdateinstaller.h b/indra/viewer_components/updater/llupdateinstaller.h
index 6ce08ce6fa..fe5b1d19b5 100644
--- a/indra/viewer_components/updater/llupdateinstaller.h
+++ b/indra/viewer_components/updater/llupdateinstaller.h
@@ -42,9 +42,10 @@ enum LLInstallScriptMode {
 // that the current application terminate once this function is called.
 //
 int ll_install_update(
-					   std::string const & script, // Script to execute.
-					   std::string const & updatePath, // Path to update file.
-					   LLInstallScriptMode mode=LL_COPY_INSTALL_SCRIPT_TO_TEMP); // Run in place or copy to temp?
+					  std::string const & script, // Script to execute.
+					  std::string const & updatePath, // Path to update file.
+					  bool required, // Is the update required.
+					  LLInstallScriptMode mode=LL_COPY_INSTALL_SCRIPT_TO_TEMP); // Run in place or copy to temp?
 
 
 //
diff --git a/indra/viewer_components/updater/llupdaterservice.cpp b/indra/viewer_components/updater/llupdaterservice.cpp
index cc60eaead2..aa4983a3b6 100644
--- a/indra/viewer_components/updater/llupdaterservice.cpp
+++ b/indra/viewer_components/updater/llupdaterservice.cpp
@@ -25,10 +25,11 @@
 
 #include "linden_common.h"
 
+#include "llupdaterservice.h"
+
 #include "llupdatedownloader.h"
 #include "llevents.h"
 #include "lltimer.h"
-#include "llupdaterservice.h"
 #include "llupdatechecker.h"
 #include "llupdateinstaller.h"
 #include "llversionviewer.h"
@@ -98,6 +99,8 @@ class LLUpdaterServiceImpl :
 
 	LLUpdaterService::app_exit_callback_t mAppExitCallback;
 	
+	LLUpdaterService::eUpdaterState mState;
+	
 	LOG_CLASS(LLUpdaterServiceImpl);
 	
 public:
@@ -111,12 +114,15 @@ public:
 				   const std::string& version);
 	
 	void setCheckPeriod(unsigned int seconds);
+	void setBandwidthLimit(U64 bytesPerSecond);
 
 	void startChecking(bool install_if_ready);
 	void stopChecking();
 	bool isChecking();
+	LLUpdaterService::eUpdaterState getState();
 	
 	void setAppExitCallback(LLUpdaterService::app_exit_callback_t aecb) { mAppExitCallback = aecb;}
+	std::string updatedVersion(void);
 
 	bool checkForInstall(bool launchInstaller); // Test if a local install is ready.
 	bool checkForResume(); // Test for resumeable d/l.
@@ -138,7 +144,10 @@ public:
 	bool onMainLoop(LLSD const & event);
 
 private:
+	std::string mNewVersion;
+	
 	void restartTimer(unsigned int seconds);
+	void setState(LLUpdaterService::eUpdaterState state);
 	void stopTimer();
 };
 
@@ -149,7 +158,8 @@ LLUpdaterServiceImpl::LLUpdaterServiceImpl() :
 	mIsDownloading(false),
 	mCheckPeriod(0),
 	mUpdateChecker(*this),
-	mUpdateDownloader(*this)
+	mUpdateDownloader(*this),
+	mState(LLUpdaterService::INITIAL)
 {
 }
 
@@ -183,6 +193,11 @@ void LLUpdaterServiceImpl::setCheckPeriod(unsigned int seconds)
 	mCheckPeriod = seconds;
 }
 
+void LLUpdaterServiceImpl::setBandwidthLimit(U64 bytesPerSecond)
+{
+	mUpdateDownloader.setBandwidthLimit(bytesPerSecond);
+}
+
 void LLUpdaterServiceImpl::startChecking(bool install_if_ready)
 {
 	if(mUrl.empty() || mChannel.empty() || mVersion.empty())
@@ -201,10 +216,16 @@ void LLUpdaterServiceImpl::startChecking(bool install_if_ready)
 
 		if(!mIsDownloading)
 		{
+			setState(LLUpdaterService::CHECKING_FOR_UPDATE);
+			
 			// Checking can only occur during the mainloop.
 			// reset the timer to 0 so that the next mainloop event 
 			// triggers a check;
 			restartTimer(0); 
+		} 
+		else
+		{
+			setState(LLUpdaterService::DOWNLOADING);
 		}
 	}
 }
@@ -222,6 +243,8 @@ void LLUpdaterServiceImpl::stopChecking()
         mUpdateDownloader.cancel();
 		mIsDownloading = false;
     }
+	
+	setState(LLUpdaterService::TERMINAL);
 }
 
 bool LLUpdaterServiceImpl::isChecking()
@@ -229,6 +252,16 @@ bool LLUpdaterServiceImpl::isChecking()
 	return mIsChecking;
 }
 
+LLUpdaterService::eUpdaterState LLUpdaterServiceImpl::getState()
+{
+	return mState;
+}
+
+std::string LLUpdaterServiceImpl::updatedVersion(void)
+{
+	return mNewVersion;
+}
+
 bool LLUpdaterServiceImpl::checkForInstall(bool launchInstaller)
 {
 	bool foundInstall = false; // return true if install is found.
@@ -266,10 +299,13 @@ bool LLUpdaterServiceImpl::checkForInstall(bool launchInstaller)
 		{
 			if(launchInstaller)
 			{
+				setState(LLUpdaterService::INSTALLING);
+				
 				LLFile::remove(update_marker_path());
 
 				int result = ll_install_update(install_script_path(),
 											   update_info["path"].asString(),
+											   update_info["required"].asBoolean(),
 											   install_script_mode());	
 				
 				if((result == 0) && mAppExitCallback)
@@ -304,6 +340,7 @@ bool LLUpdaterServiceImpl::checkForResume()
 			if(download_info["current_version"].asString() == ll_get_version())
 			{
 				mIsDownloading = true;
+				mNewVersion = download_info["update_version"].asString();
 				mUpdateDownloader.resume();
 				result = true;
 			}
@@ -333,8 +370,11 @@ void LLUpdaterServiceImpl::optionalUpdate(std::string const & newVersion,
 										  std::string const & hash)
 {
 	stopTimer();
+	mNewVersion = newVersion;
 	mIsDownloading = true;
-	mUpdateDownloader.download(uri, hash);
+	mUpdateDownloader.download(uri, hash, newVersion, false);
+	
+	setState(LLUpdaterService::DOWNLOADING);
 }
 
 void LLUpdaterServiceImpl::requiredUpdate(std::string const & newVersion,
@@ -342,8 +382,11 @@ void LLUpdaterServiceImpl::requiredUpdate(std::string const & newVersion,
 										  std::string const & hash)
 {
 	stopTimer();
+	mNewVersion = newVersion;
 	mIsDownloading = true;
-	mUpdateDownloader.download(uri, hash);
+	mUpdateDownloader.download(uri, hash, newVersion, true);
+	
+	setState(LLUpdaterService::DOWNLOADING);
 }
 
 void LLUpdaterServiceImpl::upToDate(void)
@@ -352,6 +395,8 @@ void LLUpdaterServiceImpl::upToDate(void)
 	{
 		restartTimer(mCheckPeriod);
 	}
+	
+	setState(LLUpdaterService::UP_TO_DATE);
 }
 
 void LLUpdaterServiceImpl::downloadComplete(LLSD const & data) 
@@ -367,8 +412,12 @@ void LLUpdaterServiceImpl::downloadComplete(LLSD const & data)
 	event["pump"] = LLUpdaterService::pumpName();
 	LLSD payload;
 	payload["type"] = LLSD(LLUpdaterService::DOWNLOAD_COMPLETE);
+	payload["required"] = data["required"];
+	payload["version"] = mNewVersion;
 	event["payload"] = payload;
 	LLEventPumps::instance().obtain("mainlooprepeater").post(event);
+	
+	setState(LLUpdaterService::TERMINAL);
 }
 
 void LLUpdaterServiceImpl::downloadError(std::string const & message) 
@@ -390,6 +439,8 @@ void LLUpdaterServiceImpl::downloadError(std::string const & message)
 	payload["message"] = message;
 	event["payload"] = payload;
 	LLEventPumps::instance().obtain("mainlooprepeater").post(event);
+
+	setState(LLUpdaterService::FAILURE);
 }
 
 void LLUpdaterServiceImpl::restartTimer(unsigned int seconds)
@@ -402,6 +453,28 @@ void LLUpdaterServiceImpl::restartTimer(unsigned int seconds)
 		sListenerName, boost::bind(&LLUpdaterServiceImpl::onMainLoop, this, _1));
 }
 
+void LLUpdaterServiceImpl::setState(LLUpdaterService::eUpdaterState state)
+{
+	if(state != mState)
+	{
+		mState = state;
+		
+		LLSD event;
+		event["pump"] = LLUpdaterService::pumpName();
+		LLSD payload;
+		payload["type"] = LLSD(LLUpdaterService::STATE_CHANGE);
+		payload["state"] = state;
+		event["payload"] = payload;
+		LLEventPumps::instance().obtain("mainlooprepeater").post(event);
+		
+		LL_INFOS("UpdaterService") << "setting state to " << state << LL_ENDL;
+	}
+	else 
+	{
+		; // State unchanged; noop.
+	}
+}
+
 void LLUpdaterServiceImpl::stopTimer()
 {
 	mTimer.stop();
@@ -417,6 +490,12 @@ bool LLUpdaterServiceImpl::onMainLoop(LLSD const & event)
 		// Check for failed install.
 		if(LLFile::isfile(ll_install_failed_marker_path()))
 		{
+			int requiredValue = 0; 
+			{
+				llifstream stream(ll_install_failed_marker_path());
+				stream >> requiredValue;
+				if(stream.fail()) requiredValue = 0;
+			}
 			// TODO: notify the user.
 			llinfos << "found marker " << ll_install_failed_marker_path() << llendl;
 			llinfos << "last install attempt failed" << llendl;
@@ -424,11 +503,15 @@ bool LLUpdaterServiceImpl::onMainLoop(LLSD const & event)
 			
 			LLSD event;
 			event["type"] = LLSD(LLUpdaterService::INSTALL_ERROR);
+			event["required"] = LLSD(requiredValue);
 			LLEventPumps::instance().obtain(LLUpdaterService::pumpName()).post(event);
+			
+			setState(LLUpdaterService::TERMINAL);
 		}
 		else
 		{
 			mUpdateChecker.check(mProtocolVersion, mUrl, mPath, mChannel, mVersion);
+			setState(LLUpdaterService::CHECKING_FOR_UPDATE);
 		}
 	} 
 	else 
@@ -449,6 +532,11 @@ std::string const & LLUpdaterService::pumpName(void)
 	return name;
 }
 
+bool LLUpdaterService::updateReadyToInstall(void)
+{
+	return LLFile::isfile(update_marker_path());
+}
+
 LLUpdaterService::LLUpdaterService()
 {
 	if(gUpdater.expired())
@@ -480,6 +568,11 @@ void LLUpdaterService::setCheckPeriod(unsigned int seconds)
 {
 	mImpl->setCheckPeriod(seconds);
 }
+
+void LLUpdaterService::setBandwidthLimit(U64 bytesPerSecond)
+{
+	mImpl->setBandwidthLimit(bytesPerSecond);
+}
 	
 void LLUpdaterService::startChecking(bool install_if_ready)
 {
@@ -496,11 +589,21 @@ bool LLUpdaterService::isChecking()
 	return mImpl->isChecking();
 }
 
+LLUpdaterService::eUpdaterState LLUpdaterService::getState()
+{
+	return mImpl->getState();
+}
+
 void LLUpdaterService::setImplAppExitCallback(LLUpdaterService::app_exit_callback_t aecb)
 {
 	return mImpl->setAppExitCallback(aecb);
 }
 
+std::string LLUpdaterService::updatedVersion(void)
+{
+	return mImpl->updatedVersion();
+}
+
 
 std::string const & ll_get_version(void) {
 	static std::string version("");
diff --git a/indra/viewer_components/updater/llupdaterservice.h b/indra/viewer_components/updater/llupdaterservice.h
index 752a6f834b..421481bc43 100644
--- a/indra/viewer_components/updater/llupdaterservice.h
+++ b/indra/viewer_components/updater/llupdaterservice.h
@@ -43,12 +43,27 @@ public:
 	// Name of the event pump through which update events will be delivered.
 	static std::string const & pumpName(void);
 	
+	// Returns true if an update has been completely downloaded and is now ready to install.
+	static bool updateReadyToInstall(void);
+	
 	// Type codes for events posted by this service.  Stored the event's 'type' element.
-	enum eUpdateEvent {
+	enum eUpdaterEvent {
 		INVALID,
 		DOWNLOAD_COMPLETE,
 		DOWNLOAD_ERROR,
-		INSTALL_ERROR
+		INSTALL_ERROR,
+		PROGRESS,
+		STATE_CHANGE
+	};
+	
+	enum eUpdaterState {
+		INITIAL,
+		CHECKING_FOR_UPDATE,
+		DOWNLOADING,
+		INSTALLING,
+		UP_TO_DATE,
+		TERMINAL,
+		FAILURE
 	};
 
 	LLUpdaterService();
@@ -61,10 +76,12 @@ public:
 				    const std::string& version);
 
 	void setCheckPeriod(unsigned int seconds);
+	void setBandwidthLimit(U64 bytesPerSecond);
 	
 	void startChecking(bool install_if_ready = false);
 	void stopChecking();
 	bool isChecking();
+	eUpdaterState getState();
 
 	typedef boost::function<void (void)> app_exit_callback_t;
 	template <typename F>
@@ -73,6 +90,11 @@ public:
 		app_exit_callback_t aecb = callable;
 		setImplAppExitCallback(aecb);
 	}
+	
+	// If an update is or has been downloaded, this method will return the
+	// version string for that update.  An empty string will be returned
+	// otherwise.
+	std::string updatedVersion(void);
 
 private:
 	boost::shared_ptr<LLUpdaterServiceImpl> mImpl;
diff --git a/indra/viewer_components/updater/scripts/darwin/update_install b/indra/viewer_components/updater/scripts/darwin/update_install
index 9df382f119..6a95f96d86 100644
--- a/indra/viewer_components/updater/scripts/darwin/update_install
+++ b/indra/viewer_components/updater/scripts/darwin/update_install
@@ -6,5 +6,5 @@
 #
 
 cd "$(dirname "$0")"
-../Resources/mac-updater.app/Contents/MacOS/mac-updater -dmg "$1" -name "Second Life Viewer 2" -marker "$2" &
+(../Resources/mac-updater.app/Contents/MacOS/mac-updater -dmg "$1" -name "Second Life Viewer 2"; if [ $? -ne 0 ]; then echo $3 >> "$2"; fi;) &
 exit 0
diff --git a/indra/viewer_components/updater/scripts/linux/update_install b/indra/viewer_components/updater/scripts/linux/update_install
index a271926e25..88451340ec 100644
--- a/indra/viewer_components/updater/scripts/linux/update_install
+++ b/indra/viewer_components/updater/scripts/linux/update_install
@@ -4,7 +4,7 @@ export LD_LIBRARY_PATH="$INSTALL_DIR/lib"
 bin/linux-updater.bin --file "$1" --dest "$INSTALL_DIR" --name "Second Life Viewer 2" --stringsdir "$INSTALL_DIR/skins/default/xui/en" --stringsfile "strings.xml"
 
 if [ $? -ne 0 ]
-   then touch "$2"
+   then echo $3 >> "$2"
 fi
 
 rm -f "$1"
diff --git a/indra/viewer_components/updater/scripts/windows/update_install.bat b/indra/viewer_components/updater/scripts/windows/update_install.bat
index 42e148a707..96687226a8 100644
--- a/indra/viewer_components/updater/scripts/windows/update_install.bat
+++ b/indra/viewer_components/updater/scripts/windows/update_install.bat
@@ -1,3 +1,3 @@
 start /WAIT %1 /SKIP_DIALOGS
-IF ERRORLEVEL 1 ECHO %ERRORLEVEL% > %2
+IF ERRORLEVEL 1 ECHO %3 > %2
 DEL %1
diff --git a/indra/viewer_components/updater/tests/llupdaterservice_test.cpp b/indra/viewer_components/updater/tests/llupdaterservice_test.cpp
index 04ed4e6364..5f8cd28f29 100644
--- a/indra/viewer_components/updater/tests/llupdaterservice_test.cpp
+++ b/indra/viewer_components/updater/tests/llupdaterservice_test.cpp
@@ -48,7 +48,7 @@ void LLUpdateChecker::check(std::string const & protocolVersion, std::string con
 								  std::string const & servicePath, std::string channel, std::string version)
 {}
 LLUpdateDownloader::LLUpdateDownloader(Client & ) {}
-void LLUpdateDownloader::download(LLURI const & , std::string const &){}
+void LLUpdateDownloader::download(LLURI const & , std::string const &, std::string const &, bool){}
 
 class LLDir_Mock : public LLDir
 {
@@ -101,8 +101,9 @@ std::string LLUpdateDownloader::downloadMarkerPath(void)
 
 void LLUpdateDownloader::resume(void) {}
 void LLUpdateDownloader::cancel(void) {}
+void LLUpdateDownloader::setBandwidthLimit(U64 bytesPerSecond) {}
 
-int ll_install_update(std::string const &, std::string const &, LLInstallScriptMode)
+int ll_install_update(std::string const &, std::string const &, bool, LLInstallScriptMode)
 {
 	return 0;
 }