Merge branch 'docs-duo-recommend-latest' into 'master'

Docs: Add a bullet for GitLab latest for SM Duo (Chat, Code Suggestions, Use cases)

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/164389



Merged-by: Suzanne Selhorn <sselhorn@gitlab.com>
Co-authored-by: Michael Friedrich <mfriedrich@gitlab.com>

doc/user/gitlab_duo/use_cases.md

@@ -14,6 +14,9 @@ Learn how to:
 - Use GitLab Duo Root Cause Analysis to debug problems.
 - Solve security vulnerabilities.
 
+NOTE:
+If you have self-managed GitLab: For the best experience, upgrade to the [latest version of GitLab](https://about.gitlab.com/releases/categories/releases/).
+
 ## Use GitLab Duo to solve development challenges
 
 ### Start with a C# application

doc/user/gitlab_duo_chat/index.md

@@ -44,6 +44,9 @@ Visual Studio support is
 You can express interest in other IDE extension support
 [in this issue](https://gitlab.com/gitlab-org/editor-extensions/meta/-/issues/78).
 
+NOTE:
+If you have self-managed GitLab: For the best experience, upgrade to the [latest version of GitLab](https://about.gitlab.com/releases/categories/releases/).
+
 ## The context Chat is aware of
 
 GitLab Duo Chat is sometimes aware of the context you're working in.

doc/user/project/repository/code_suggestions/index.md

@@ -18,7 +18,7 @@ DETAILS:
 > - Subscription changed to require GitLab Duo Pro on February 15, 2024.
 
 NOTE:
-GitLab Duo Code Suggestions requires [GitLab 16.8](https://about.gitlab.com/releases/2024/01/18/gitlab-16-8-released/) and later. Earlier GitLab versions are not supported.
+GitLab Duo Code Suggestions requires [GitLab 16.8](https://about.gitlab.com/releases/2024/01/18/gitlab-16-8-released/) and later. For the best GitLab Duo experience, upgrade to the [latest version](https://about.gitlab.com/releases/categories/releases/) of GitLab.
 
 Write code more efficiently by using generative AI to suggest code while you're developing.
 
@@ -62,6 +62,7 @@ Prerequisites:
   [assigned you a seat](../../../../subscriptions/subscription-add-ons.md#assign-gitlab-duo-seats).
 - For self-managed GitLab, you must have GitLab 16.8 or later, and have
   [configured proxy settings](../../../../subscriptions/subscription-add-ons.md#configure-network-and-proxy-settings).
+
 To use Code Suggestions:
 
 1. Open your Git project in a supported IDE.