(DOCSP-33292): Compass 1.40.0 release notes (#559)

* (DOCSP-33292): Compass 1.40.0 release notes

* use new webhook

* typos

* wording

* add periods

* add period

* add generative AI feature

Author: jeff-allen-mongo

source/release-notes.txt

@@ -10,6 +10,47 @@ Release Notes
    :depth: 1
    :class: twocols
 
+|compass| 1.40.0
+----------------
+
+*Released September 26, 2023*
+
+New Features:
+
+- Upgrade :ref:`embedded MongoDB shell <embedded-mongodb-shell>` to
+  version 2.0.0 (:issue:`COMPASS-7057`).
+  
+- Upgrade Node driver to version 6.0.0 (:issue:`COMPASS-7057`).
+
+- Upgrade Electron to version 26.
+
+- Set up local Atlas detection (:issue:`COMPASS-7213`).
+
+- Display local Atlas development environments as such
+  (:issue:`COMPASS-7156`).
+
+- Introduce ``$vectorSearch`` aggregation stage to MongoDB 7.1 and 7.0.x
+  (:issue:`COMPASS-7064`).
+
+- Enable `Atlas search index
+  <https://www.mongodb.com/docs/atlas/atlas-search/atlas-search-overview/#fts-indexes>`__
+  management (:issue:`COMPASS-7238`).
+
+- Enable natural language query and pipeline generation (incrementally
+  rolled out to users) (:issue:`COMPASS-6866`).
+
+Bug Fixes:
+
+- Account for changed key order in query (:issue:`COMPASS-7194`).
+
+- Remove out stages before running explain plan (:issue:`COMPASS-7012`).
+
+- Don't automatically select regex when detecting regex
+  (:issue:`COMPASS-7144`).
+
+`Full changelog available on GitHub
+<https://github.com/mongodb-js/compass/compare/v1.39.4...v1.40.0>`__
+
 |compass| 1.39.4
 ----------------