Write up Ruby 3.4.6 Released

Author: k0kubun

en/news/_posts/2025-09-15-ruby-3-4-6-released.md

@@ -9,7 +9,15 @@ lang: en
 
 Ruby 3.4.6 has been released.
 
-Please see the [GitHub releases](https://github.com/ruby/ruby/releases/tag/v3_4_6) for further details.
+This is a routine update that includes bug fixes.
+Please refer to the [release notes on GitHub](https://github.com/ruby/ruby/releases/tag/v3_4_6) for further details.
+
+## Release Schedule
+
+We intend to release the latest stable Ruby version (currently Ruby 3.4) every two months following the most recent release.
+Ruby 3.4.7 is scheduled for November and 3.4.8 for January.
+
+If a change arises that significantly affects users, a release may occur earlier than planned, and the subsequent schedule may shift accordingly.
 
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