Update CHANGELOG.md

CHANGELOG.md

@@ -5,6 +5,20 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [vNext]
+- Fixed invocations for PowerShell bootstrapping script
+- Fixed retrieval of `version_dotnet_sdk` in telemetry
+- Fixed solution serialization to show information about duplicated entries
+- Fixed path construction to be lazy for in-memory solutions that get saved
+- Fixed missing LFS and Submodule settings in AzurePipelines configuration
+- Fixed `GitHubTasks.GetGitHubBrowseUrl` to trim trailing slash
+- Fixed `GitVersionAttribute.Framework` default value to `net5.0`
+- Fixed URLs in `ChangeLogTasks`
+- Fixed default value emission for `DotCoverTasks`
+- Fixed missing properties for `GitVersionTasks`
+- Fixed missing secret attributes in `SonarScannerTasks`
+- Fixed missing `OctoVersionTasks` and `OctoVersionAttribute`
+- Fixed missing `ChocolateyTasks`
+- Fixed enumeration for `NerdbankGitVersioning`
 
 ## [5.2.1] / 2021-06-18
 - Fixed telemetry