prep 2.22-beta4 (#2823)

Author: Timothy Mothra

.props/_GlobalStaticVersion.props

@@ -13,7 +13,7 @@
     <SemanticVersionMajor>2</SemanticVersionMajor>
     <SemanticVersionMinor>22</SemanticVersionMinor> <!-- If changing the Minor version, also update the Date value. -->
     <SemanticVersionPatch>0</SemanticVersionPatch>
-    <PreReleaseMilestone>beta3</PreReleaseMilestone> <!--Valid values: beta1, beta2, EMPTY for stable -->
+    <PreReleaseMilestone>beta4</PreReleaseMilestone> <!--Valid values: beta1, beta2, EMPTY for stable -->
     <PreReleaseMilestone Condition="'$(Redfield)' == 'True'">redfield</PreReleaseMilestone>
     <PreReleaseMilestone Condition="'$(NightlyBuild)' == 'True'">nightly</PreReleaseMilestone> <!-- Overwrite this property for nightly builds from the DEVELOP branch. -->
     <!--

CHANGELOG.md

@@ -1,6 +1,9 @@
 # Changelog
 
 ## VNext
+
+
+## Version 2.22.0-beta4
 - [Added support to read diagnostics config from the path defined in environment variable.](https://github.com/microsoft/ApplicationInsights-dotnet/pull/2769)
 
 ## Version 2.22.0-beta3