Updates release notes for 4.4

Fixes #6056

docs/releasenotes.asciidoc

@@ -15,11 +15,30 @@ in the index pattern name.
 * {k4issue}1362[Issue 1362]: Color palette selector added.
 * {k4issue}1553[Issue 1553]: Kibana can shorten URLs for shared or embedded items.
 * {k4issue}5733[Issue 5733]: Time-based index pattern expansion can be set at index pattern creation time.
+* {k4issue}5775[Issue 5775]: Adds a configuration option to change the maximum payload size sent to the server.
+* {k4issue}4966[Issue 4966]: Logo is now in SVG format.
+* {k4issue}3625[Issue 3625]: Downloaded visualizations now use the visualization name as the filename.
+* {k4issue}5279[Issue 5279]: Large strings are truncated with an ellipsis (`...`).
+* {k4issue}5241[Issue 5241]: Truncated visualization names are displayed in full as tooltips.
 
 [float]
 [[bugfixes]]
 == Bug Fixes
 
-* {k4issue}5896[Issue 5896]: Bookmarked URLs to saved filtered searches from a previous version of Kibana display correctly.
+* {k4issue}5896[Issue 5896]: Bookmarked URLs to saved filtered searches from a previous version of Kibana display 
+correctly.
 * {k4issue}5191[Issue 5191]: Timepicker is now available for dashboards that contain a chart based on an index that is not 
 time-based.
+* {k4issue}5744[Issue 5744]: Fixes bug that caused incorrect display of "No results found" in some cases.
+* {k4issue}5824[Issue 5284]: Corrects a fatal error when Kibana starts with node x86 on Windows x64 systems.
+
+[float]
+[[plugin-system]]
+== Plugin System Changes
+
+* {k4issue}5226[Issue 5226]: Plugins are explicit when they start to route.
+* {k4pull}5725[Pull Request 5725]: Plugins can extend Chrome navigation.
+* {k4issue}4720[Issue 4720]: Adds support for zip compression.
+* {k4pull}5704[Pull Request 5704]: Removes Github shortcuts from the plugin installer.
+* {k4issue}5661[Issue 5661]: Fixes the plugin optimization path.
+* {k4pull}5538[Pull Request 5538]: Apps can use empty export types.