Update changelog for 2.8.6

cyderize · cyderize · commit 02c4fcbb4fea · 2024-09-25T15:07:06.000+10:00
diff --git a/changes.rst b/changes.rst
@@ -4,7 +4,12 @@ MiniZinc Change Log
 For detailed bug reports consult the issue tracker at
 https://github.com/MiniZinc/libminizinc/issues.
 
-.. _unreleased:
+.. _v2.8.6:
+
+`Version 2.8.6 <https://github.com/MiniZinc/MiniZincIDE/releases/tag/2.8.6>`__
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+(released 25 September 2024)
 
 Changes:
 ^^^^^^^^
