diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 1cdb4679..7767e2ab 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.9.0-alpha.0
+current_version = 0.9.0
 tag = True
 sign_tags = True
 tag_message = ethash {new_version}
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a0b2dfc9..94f15451 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,19 @@
 # Changelog
 
+## [0.9.0] — 2022-04-05
+
+- Added: The constant `ETHASH_MAX_EPOCH_NUMBER = 32639` representing
+  the maximum supported Ethash epoch.
+  [#212](https://github.com/chfast/ethash/pull/212)
+- Removed: Previously deprecated ProgPoW implementation.
+  [#207](https://github.com/chfast/ethash/pull/207)
+  [#209](https://github.com/chfast/ethash/pull/209)
+  [#210](https://github.com/chfast/ethash/pull/210)
+- Removed: Support for using custom hash function for light cache generation.
+  [#213](https://github.com/chfast/ethash/pull/213)
+- Removed: The internal header builtins.h.
+  [#208](https://github.com/chfast/ethash/pull/208)
+
 ## [0.8.0] — 2021-11-09
 
 - Added: The new set of functions which verify Ethash hashes against difficulty
@@ -124,6 +138,7 @@
  - Added: Experimental support for [ProgPoW] [0.9.1][ProgPoW-changelog].
 
 
+[0.9.0]: https://github.com/chfast/ethash/releases/tag/v0.9.0
 [0.8.0]: https://github.com/chfast/ethash/releases/tag/v0.8.0
 [0.7.1]: https://github.com/chfast/ethash/releases/tag/v0.7.1
 [0.7.0]: https://github.com/chfast/ethash/releases/tag/v0.7.0
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7597c7fd..5b1fbbc9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -19,7 +19,7 @@ cable_set_build_type(DEFAULT Release CONFIGURATION_TYPES Release RelWithDebInfo
 include(cmake/Hunter/init.cmake)
 
 project(ethash)
-set(PROJECT_VERSION 0.9.0-alpha.0)
+set(PROJECT_VERSION 0.9.0)
 
 cable_configure_compiler(NO_STACK_PROTECTION)
 if(CABLE_COMPILER_GNULIKE)
diff --git a/include/ethash/version.h b/include/ethash/version.h
index ab0b626a..bea8fc66 100644
--- a/include/ethash/version.h
+++ b/include/ethash/version.h
@@ -6,7 +6,7 @@
 #pragma once
 
 /** The ethash library version. */
-#define ETHASH_VERSION "0.9.0-alpha.0"
+#define ETHASH_VERSION "0.9.0"
 
 #ifdef __cplusplus
 namespace ethash
diff --git a/setup.py b/setup.py
index a9684fe6..bf29a727 100755
--- a/setup.py
+++ b/setup.py
@@ -68,7 +68,7 @@ def run(self):
 
 setup(
     name='ethash',
-    version='0.9.0-alpha.0',
+    version='0.9.0',
     description=
     "C/C++ implementation of Ethash – the Ethereum Proof of Work algorithm",
     url='https://github.com/chfast/ethash',