Update changelog for 2.9.0

Author: cyderize

CMakeLists.txt

@@ -3,7 +3,7 @@ cmake_minimum_required(VERSION 3.5.0)
 #  -- Project information and versioning.
 
 project(libminizinc
-        VERSION 2.8.8
+        VERSION 2.9.0
         LANGUAGES CXX C)
 
 if(NOT BUILD_REF)

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:
+.. _v2.9.0:
+
+`Version 2.9.0 <https://github.com/MiniZinc/MiniZincIDE/releases/tag/2.9.0>`__
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+(released 11 February 2025)
 
 Changes:
 ^^^^^^^^