Update changelog (#653)

Co-authored-by: Anemy <[email protected]>

Author: github-actions[bot]

CHANGELOG.md

@@ -1,8 +1,27 @@
 # Change Log
 
-## [v1.4.0](https://github.com/mongodb-js/vscode/releases/tag/untagged-cda8b18ef8ec5f1910ea) - null
+## [v1.4.0](https://github.com/mongodb-js/vscode/releases/tag/v1.4.0) - 2024-01-09
 
-Edit the release notes before publishing.
+## What's Changed
+* feat: send logs to a LogOutputChannel VSCODE-429 by @baileympearson in https://github.com/mongodb-js/vscode/pull/616
+* feat: enable language server logs to be opened as a log file VSCODE-429 by @baileympearson in https://github.com/mongodb-js/vscode/pull/618
+* fix(explorer): auto-open connection when done connecting, fix auto open on delete VSCODE-325 VSCODE-398 by @Anemy in https://github.com/mongodb-js/vscode/pull/619
+* feat: adds a new overview screen based on LeafyGreen components VSCODE-485 by @himanshusinghs in https://github.com/mongodb-js/vscode/pull/617
+* chore(playground): codelens for active connection will inform about default connected database VSCODE-316 by @himanshusinghs in https://github.com/mongodb-js/vscode/pull/621
+* feat(webview): use Compass' connection form in the new overview page VSCODE-488 by @Anemy in https://github.com/mongodb-js/vscode/pull/622
+* chore(connections): remove keytar, keytar migration, and connection model migration VSCODE-499 by @Anemy in https://github.com/mongodb-js/vscode/pull/625
+* chore: add connection storage, simplify connection controller and storage controller interfaces by @Anemy in https://github.com/mongodb-js/vscode/pull/627
+* chore: update segment client VSCODE-498, VSCODE-501 by @mcasimir in https://github.com/mongodb-js/vscode/pull/626
+* chore(ci): sign vsix file VSCODE-493 by @mcasimir in https://github.com/mongodb-js/vscode/pull/632
+* feat(webview): update feature flag to always show new connection form VSCODE-490 by @Anemy in https://github.com/mongodb-js/vscode/pull/637
+* feat: add OIDC auth support, enable in new form VSCODE-354 by @Anemy in https://github.com/mongodb-js/vscode/pull/630
+* VSCODE-504: streams support in playgrounds by @shaketbaby in https://github.com/mongodb-js/vscode/pull/633
+
+## New Contributors
+* @baileympearson made their first contribution in https://github.com/mongodb-js/vscode/pull/616
+* @shaketbaby made their first contribution in https://github.com/mongodb-js/vscode/pull/633
+
+**Full Changelog**: https://github.com/mongodb-js/vscode/compare/v1.3.1...v1.4.0
 
 
 ## [v1.3.1](https://github.com/mongodb-js/vscode/releases/tag/v1.3.1) - 2023-10-09