Updates CHANGELOG

Author: eamodio

CHANGELOG.md

@@ -6,12 +6,29 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/) and this p
 
 ## [Unreleased]
 
+### Added
+
+- Adds support for Claude Sonnet 4.5 for GitLens' AI features
+
+### Changed
+
+- Greatly improves performance of the _Inspect_ and \_Graph Details views by virtualizing the tree rendering ([#3470](https://github.com/gitkraken/vscode-gitlens/issues/3470))
+  - Improved keyboard navigation support including arrow keys, Home/End, Enter/Space, Tab, and added type-ahead search functionality
+- Improves Linear issue tracker support ([#4605](https://github.com/gitkraken/vscode-gitlens/issues/4605), [#4615](https://github.com/gitkraken/vscode-gitlens/issues/4615), [#4620](https://github.com/gitkraken/vscode-gitlens/issues/4620), [#4621](https://github.com/gitkraken/vscode-gitlens/issues/4621), [#4622](https://github.com/gitkraken/vscode-gitlens/issues/4622))
+
 ### Fixed
 
+- Fixes _Commit Composer_ rendering performance when working changes contain large file diffs ([#4661](https://github.com/gitkraken/vscode-gitlens/issues/4661))
+- Fixes AI cancellation cases being treated as errors ([#4609](https://github.com/gitkraken/vscode-gitlens/issues/4609))
+- Fixes MCP banner not being clickable on Commit graph view ([#4630](https://github.com/gitkraken/vscode-gitlens/issues/4630))
 - Fixes Git diff of a renamed file is shown as a new file ([#4246](https://github.com/gitkraken/vscode-gitlens/issues/4246))
 - Fixes typos ([#4345](https://github.com/gitkraken/vscode-gitlens/issues/4345) — thanks to [PR #4346](https://github.com/gitkraken/vscode-gitlens/pull/4346) by Noritaka Kobayashi ([@noritaka1166](https://github.com/noritaka1166)))
-- Fixes issue where the _Commit Graph_ hover would not hide when going from the hover to the graph background (not another row)
-- Fixes _Commit Composer_ rendering performance when working changes contain large file diffs ([#4661](https://github.com/gitkraken/vscode-gitlens/issues/4661))
+- Fixes an issue where the _Commit Graph_ hover would not hide when going from the hover to the graph background (not another row)
+- Fixes an issue where clicking _Open Changes_ on commit files in the views would error
+
+### Removed
+
+- Removes " (bundled with GitLens)" text from GK MCP server name ([#4664](https://github.com/gitkraken/vscode-gitlens/issues/4664))
 
 ## [17.5.1] - 2025-09-24