Mentions new Welcome view in the CHANGELOG

(#4769, #4773, PLG-138)

Author: sergeibbb

CHANGELOG.md

@@ -6,6 +6,10 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/) and this p
 
 ## [Unreleased]
 
+### Added
+
+- Adds a welcome page webview for first-time installs to highlight Pro benefits for users in IDEs that do not support the standard VS Code walkthrough ([#4769](https://github.com/gitkraken/vscode-gitlens/issues/4769)
+
 ### Changed
 
 - Changes AI features to require GitLens Pro instead of GitLens Advanced — all AI features now consistently lead to Pro plan checkout ([#4843](https://github.com/gitkraken/vscode-gitlens/issues/4843))