diff --git a/Changelog.md b/Changelog.md
index 7233ea1..f529b8e 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,6 +1,6 @@
 # CHANGELOG
 
-## master (unreleased)
+## v10.0.0 (2020-06-05)
 
 - **BREAKING CHANGE**: the ``IsoRegistry.get_calendar_class()`` method has been removed from the code and should no longer be used (#375, #495).
 
diff --git a/docs/iso-registry.md b/docs/iso-registry.md
index c5a817c..847078c 100644
--- a/docs/iso-registry.md
+++ b/docs/iso-registry.md
@@ -129,7 +129,7 @@ Let's say that we only know the ISO code for Switzerland (`CH`). If we want to c
 
 *Note*: this function would return `None` if the code is unknown.
 
-**DEPRECATION WARNING**: As of version X.X.X, the ``IsoRegistry.get_calendar_class()`` has been renamed into ``IsoRegistry.get()`` to retrieve a single calendar class out of the registry.
+**DEPRECATION WARNING**: As of version 10.0.0, the ``IsoRegistry.get_calendar_class()`` has been renamed into ``IsoRegistry.get()`` to retrieve a single calendar class out of the registry.
 
 
 ## Select only sub-regions
diff --git a/setup.py b/setup.py
index 245d7f1..abf8451 100644
--- a/setup.py
+++ b/setup.py
@@ -28,7 +28,7 @@ REQUIREMENTS = [
     'pyluach',
     'setuptools>=1.0',
 ]
-version = '9.3.0.dev0'
+version = '10.0.0'
 __VERSION__ = version
 
 params = dict(