diff --git a/engine/install/centos.md b/engine/install/centos.md
index 3b75e1c50c..e4ba4b8836 100644
--- a/engine/install/centos.md
+++ b/engine/install/centos.md
@@ -19,8 +19,8 @@ To get started with Docker Engine on CentOS, make sure you
 
 ### OS requirements
 
-To install Docker Engine, you need a maintained version of CentOS 7. Archived
-versions aren't supported or tested.
+To install Docker Engine, you need a maintained version of CentOS 7 or 8.
+Archived versions aren't supported or tested.
 
 The `centos-extras` repository must be enabled. This repository is enabled by
 default, but if you have disabled it, you need to
diff --git a/engine/install/fedora.md b/engine/install/fedora.md
index f1b278bb05..f4db1ef5f9 100644
--- a/engine/install/fedora.md
+++ b/engine/install/fedora.md
@@ -20,8 +20,6 @@ To get started with Docker Engine on Fedora, make sure you
 
 To install Docker Engine, you need the 64-bit version of one of these Fedora versions:
 
-- Fedora 30
-- Fedora 31
 - Fedora 32
 - Fedora 33
 
diff --git a/engine/install/ubuntu.md b/engine/install/ubuntu.md
index 07442c5a2d..d6f4b5f0da 100644
--- a/engine/install/ubuntu.md
+++ b/engine/install/ubuntu.md
@@ -24,6 +24,7 @@ To get started with Docker Engine on Ubuntu, make sure you
 To install Docker Engine, you need the 64-bit version of one of these Ubuntu
 versions:
 
+- Ubuntu Groovy 20.10
 - Ubuntu Focal 20.04 (LTS)
 - Ubuntu Bionic 18.04 (LTS)
 - Ubuntu Xenial 16.04 (LTS)