diff --git a/data/reusables/github-actions/supported-github-runners.md b/data/reusables/github-actions/supported-github-runners.md
index 80614213e4..3af3da15cb 100644
--- a/data/reusables/github-actions/supported-github-runners.md
+++ b/data/reusables/github-actions/supported-github-runners.md
@@ -1,8 +1,8 @@
 | Virtual environment | YAML workflow label |
 | --------------------|---------------------|
 | Windows Server 2019 | `windows-latest` or `windows-2019` |
-| Ubuntu 20.04 | `ubuntu-20.04` |
-| Ubuntu 18.04 | `ubuntu-latest` or `ubuntu-18.04` |
+| Ubuntu 20.04 | `ubuntu-latest` (see note) or `ubuntu-20.04` |
+| Ubuntu 18.04 | `ubuntu-latest` (see note) or `ubuntu-18.04` |
 | Ubuntu 16.04 | `ubuntu-16.04` |
 | macOS Big Sur 11.0 | `macos-11.0` |
 | macOS Catalina 10.15 | `macos-latest` or `macos-10.15` |
diff --git a/data/reusables/github-actions/ubuntu-runner-preview.md b/data/reusables/github-actions/ubuntu-runner-preview.md
index 1a3636e0e1..6eb91edc13 100644
--- a/data/reusables/github-actions/ubuntu-runner-preview.md
+++ b/data/reusables/github-actions/ubuntu-runner-preview.md
@@ -1,5 +1,5 @@
 {% note %}
 
-**Note:** The Ubuntu 20.04 virtual environment is currently provided as a preview only. The `ubuntu-latest` YAML workflow label still uses the Ubuntu 18.04 virtual environment.
+**Note:** The `ubuntu-latest` label is currently being migrated from the Ubuntu 18.04 virtual environment to Ubuntu 20.04. Specifying the `ubuntu-latest` label during the migration might use either virtual environment. To explicitly use Ubuntu 20.04 or Ubuntu 18.04, specify `ubuntu-20.04` or `ubuntu-18.04`. When the migration is complete, `ubuntu-latest` will use the Ubuntu 20.04 virtual environment. For more information about the migration, see "[Ubuntu-latest workflows will use Ubuntu-20.04](https://github.com/actions/virtual-environments/issues/1816)."
 
 {% endnote %}