diff --git a/docs/conf.py b/docs/conf.py
index 756dc8104..274da2d38 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -15,7 +15,7 @@ from unittest import mock
 
 project = "Pyodide"
 copyright = "2019-2022, Pyodide contributors and Mozilla"
-pyodide_version = "0.21.0a3"
+pyodide_version = "0.21.0"
 
 if ".dev" in pyodide_version or os.environ.get("READTHEDOCS_VERSION") == "latest":
     CDN_URL = "https://cdn.jsdelivr.net/pyodide/dev/full/"
diff --git a/docs/development/maintainers.md b/docs/development/maintainers.md
index aac83a223..af5d2b442 100644
--- a/docs/development/maintainers.md
+++ b/docs/development/maintainers.md
@@ -29,7 +29,7 @@ the latest release branch named `stable` (due to ReadTheDocs constraints).
    - Generate the list of contributors for the release at the end of the
      changelog entry with,
      ```bash
-     git shortlog -s LAST_TAG.. | cut -f2- | sort --ignore-case | tr '\n' ';' | sed 's/;/, /g;s/, $//' | fold -s
+     git shortlog -s LAST_TAG.. | cut -f2- | grep -v '\[bot\]' | sort --ignore-case | tr '\n' ';' | sed 's/;/, /g;s/, $//' | fold -s
      ```
      where `LAST_TAG` is the tag for the last release.
 
diff --git a/docs/project/about.md b/docs/project/about.md
index d68471d75..ead42accb 100644
--- a/docs/project/about.md
+++ b/docs/project/about.md
@@ -45,7 +45,7 @@ list from there with "The Pyodide development team" like in the example below:
   month        = aug,
   year         = 2021,
   publisher    = {Zenodo},
-  version      = {0.20.0},
+  version      = {0.21.0},
   doi          = {10.5281/zenodo.5156931},
   url          = {https://doi.org/10.5281/zenodo.5156931}
 }
diff --git a/docs/project/changelog.md b/docs/project/changelog.md
index 8afe4aac1..9607780cc 100644
--- a/docs/project/changelog.md
+++ b/docs/project/changelog.md
@@ -12,7 +12,11 @@ substitutions:
 
 # Change Log
 
-## Unreleased
+## Version 0.21.0
+
+_August 9, 2022_
+
+[See the release notes for a summary.](https://blog.pyodide.org/posts/0.21-release/)
 
 ### Build system
 
@@ -124,7 +128,7 @@ substitutions:
   {pr}`2666`
 
 - {{ Fix }} Fix a REPL error in printing high-dimensional lists.
-  {pr}`2517`
+  {pr}`2517` {pr}`2919`
 
 - {{ Fix }} Fix output bug with using `input()` on online console
   {pr}`2509`
@@ -232,9 +236,20 @@ substitutions:
 
 - {{ Breaking }} `pyodide_build.testing` is removed. `run_in_pyodide`
   decorator can now be accessed through
-  [`pytest-runner`](https://github.com/pyodide/pytest-pyodide) package.
+  [`pytest-pyodide`](https://github.com/pyodide/pytest-pyodide) package.
   {pr}`2418`
 
+### List of contributors
+
+Alexey Ignatiev, Andrey Smelter, andrzej, Antonio Cuni, Ben Jeffery, Brian
+Benjamin Maranville, David Lechner, dragoncoder047, echorand (Amit Saha),
+Filipe, Frank, Gyeongjae Choi, Hanno Rein, haoran1062, Henry Schreiner, Hood
+Chatham, Jason Grout, jmdyck, Jo Bovy, John Wason, josephrocca, Kyle Cutler,
+Lester Fan, Liumeo, lukemarsden, Mario Gersbach, Matt Toad, Michael Droettboom,
+Michael Gilbert, Michael Neil, Mu-Tsun Tsai, Nicholas Bollweg, pysathq, Ricardo
+Prins, Rob Gries, Roman Yurchak, Ryan May, Ryan Russell, stonebig, Szymswiat,
+Tobias Megies, Vic Kumar, Victor, Wei Ji, Will Lachance
+
 ## Version 0.20.0
 
 [See the release notes for a summary.](https://blog.pyodide.org/posts/0.20-release/)
diff --git a/pyodide-build/pyodide_build/__init__.py b/pyodide-build/pyodide_build/__init__.py
index faea56acd..6a726d853 100644
--- a/pyodide-build/pyodide_build/__init__.py
+++ b/pyodide-build/pyodide_build/__init__.py
@@ -1 +1 @@
-__version__ = "0.21.0a3"
+__version__ = "0.21.0"
diff --git a/run_docker b/run_docker
index 95f63e25b..63ce2c29e 100755
--- a/run_docker
+++ b/run_docker
@@ -2,7 +2,7 @@
 
 PYODIDE_IMAGE_REPO="pyodide"
 PYODIDE_IMAGE_TAG="20220629-py310-chrome102-firefox100"
-PYODIDE_PREBUILT_IMAGE_TAG="0.20.0"
+PYODIDE_PREBUILT_IMAGE_TAG="0.21.0"
 DEFAULT_PYODIDE_DOCKER_IMAGE="${PYODIDE_IMAGE_REPO}/pyodide-env:${PYODIDE_IMAGE_TAG}"
 DEFAULT_PYODIDE_SYSTEM_PORT="none"
 DOCKER_COMMAND="/bin/bash"
diff --git a/src/js/package-lock.json b/src/js/package-lock.json
index 1210d826d..df065ef65 100644
--- a/src/js/package-lock.json
+++ b/src/js/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "pyodide",
-  "version": "0.21.0-alpha.3",
+  "version": "0.21.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "pyodide",
-      "version": "0.21.0-alpha.3",
+      "version": "0.21.0",
       "license": "Apache-2.0",
       "dependencies": {
         "base-64": "^1.0.0",
diff --git a/src/js/package.json b/src/js/package.json
index 76a9291ae..0de8eff5e 100644
--- a/src/js/package.json
+++ b/src/js/package.json
@@ -1,6 +1,6 @@
 {
   "name": "pyodide",
-  "version": "0.21.0-alpha.3",
+  "version": "0.21.0",
   "description": "The Pyodide JavaScript package",
   "keywords": [
     "python",
diff --git a/src/py/pyodide/__init__.py b/src/py/pyodide/__init__.py
index eb71d273e..32cf6a869 100644
--- a/src/py/pyodide/__init__.py
+++ b/src/py/pyodide/__init__.py
@@ -10,7 +10,7 @@
 # This package is imported by the test suite as well, and currently we don't use
 # pytest mocks for js or pyodide_js, so make sure to test "if IN_BROWSER" before
 # importing from these.
-__version__ = "0.21.0a3"
+__version__ = "0.21.0"
 
 __all__ = ["__version__"]
 
diff --git a/src/py/setup.cfg b/src/py/setup.cfg
index c295d54d9..676738eab 100644
--- a/src/py/setup.cfg
+++ b/src/py/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = pyodide
-version = 0.21.0a3
+version = 0.21.0
 author = Pyodide developers
 description = "A Python package providing core interpreter functionality for Pyodide."
 long_description = file: README.md