diff --git a/doc/source/_static/docversions.js b/doc/source/_static/docversions.js
index c51c0d02d08..1640535c5b1 100644
--- a/doc/source/_static/docversions.js
+++ b/doc/source/_static/docversions.js
@@ -1,4 +1,4 @@
-var versions = ['dev', '0.20.x', '0.19.x', '0.18.x', '0.17.x', '0.16.x', '0.15.x', '0.14.x', '0.13.x', '0.12.x', '0.11.x', '0.10.x', '0.9.x', '0.8.0', '0.7.0', '0.6', '0.5', '0.4', '0.3'];
+var versions = ['dev', '0.21.x', '0.20.x', '0.19.x', '0.18.x', '0.17.x', '0.16.x', '0.15.x', '0.14.x', '0.13.x', '0.12.x', '0.11.x', '0.10.x', '0.9.x', '0.8.0', '0.7.0', '0.6', '0.5', '0.4', '0.3'];
 
 function insert_version_links() {
     for (i = 0; i < versions.length; i++){
diff --git a/doc/source/_static/version_switcher.json b/doc/source/_static/version_switcher.json
index b19977c474f..d85910e95e2 100644
--- a/doc/source/_static/version_switcher.json
+++ b/doc/source/_static/version_switcher.json
@@ -5,10 +5,15 @@
         "url": "https://scikit-image.org/docs/dev/"
     },
     {
-        "name": "0.20 (stable)",
-        "version":"0.20.0",
+        "name": "0.21 (stable)",
+        "version":"0.21.0",
         "url": "https://scikit-image.org/docs/stable/"
     },
+    {
+        "name": "0.20",
+        "version":"0.20.0",
+        "url": "https://scikit-image.org/docs/0.20.x/"
+    },
     {
         "name": "0.19",
         "version":"0.19.2",
diff --git a/skimage/__init__.py b/skimage/__init__.py
index 861614325be..72d13a498d0 100644
--- a/skimage/__init__.py
+++ b/skimage/__init__.py
@@ -65,7 +65,7 @@
 
 """
 
-__version__ = '0.21.0rc2.dev0'
+__version__ = '0.21.0'
 
 from ._shared.version_requirements import ensure_python_version
 ensure_python_version((3, 8))