diff --git a/HISTORY.md b/HISTORY.md
index 957d17e4..60348f2d 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,10 +1,30 @@
 Release History
 ---------------
-# 0.9.0a0 (2024-10-17)
+
+# 0.9.0 (2024-12-21)
+
+## What's Changed
+
+### 🐛 Bugs fixed
+
+* fix links to readthedocs site by @wang-boyu in https://github.com/projectmesa/mesa-geo/pull/257
+* fix broken mesa dependencies in GeoJupyterViz by @AdamZh0u in https://github.com/projectmesa/mesa-geo/pull/269
+
+### 🔧 Maintenance
+
+* rename make_geospace_leaflet to make_geospace_component by @wang-boyu in https://github.com/projectmesa/mesa-geo/pull/270
+* update make_plot_measure method name from mesa viz by @wang-boyu in https://github.com/projectmesa/mesa-geo/pull/264
+* Require Mesa 3.0 stable by @EwoutH in https://github.com/projectmesa/mesa-geo/pull/260
+
+**Full Changelog**: https://github.com/projectmesa/mesa-geo/compare/v0.9.0a1...v0.9.0
+
+# 0.9.0a1 (2024-10-17)
+
 ## Highlights
 This small pre-release fixes a bug in the RasterLayer rendering and deprecated the old GeoJupyterViz, in favor of the new SolaraViz.
 
 ## What's Changed
+
 ### 🐛 Bugs fixed
 * fix raster layer rendering in solaraviz by @wang-boyu in https://github.com/projectmesa/mesa-geo/pull/254
 ### 📜 Documentation improvements
diff --git a/docs/conf.py b/docs/conf.py
index 743db109..c69d3e5d 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -66,9 +66,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = "0.8.0"
+version = "0.9.0"
 # The full version, including alpha/beta/rc tags.
-release = "0.8.0"
+release = "0.9.0"
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/mesa_geo/__init__.py b/mesa_geo/__init__.py
index d74fdd29..ed58a2fc 100644
--- a/mesa_geo/__init__.py
+++ b/mesa_geo/__init__.py
@@ -24,7 +24,7 @@
 ]
 
 __title__ = "Mesa-Geo"
-__version__ = "0.9.0a1"
+__version__ = "0.9.0"
 __license__ = "Apache 2.0"
 _this_year = datetime.datetime.now(tz=datetime.timezone.utc).date().year
 __copyright__ = f"Copyright {_this_year} Project Mesa Team"