diff --git a/.github/release-notes.md b/.github/release-notes.md
index 68f4e34..d8b3520 100644
--- a/.github/release-notes.md
+++ b/.github/release-notes.md
@@ -21,3 +21,6 @@ Gearslip 0.3 goes wireless, takes voice commands, and works with the car's rotar
 - On GrapheneOS, Gearslip no longer needs exploit protection compatibility mode.
 - The car warns you when the phone's location is off.
 - Support Gearslip through Liberapay or Monero, in Settings.
+
+## Known issues
+- Phone calls are unstable right now and may drop or fail to connect.
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 42bd647..2ca46d7 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -48,3 +48,6 @@ jobs:
           # The hand-written notes go first; GitHub adds the full changelog link under them.
           body_path: .github/release-notes.md
           generate_release_notes: true
+          # Every release starts as a pre-release: only phones on the Alpha update channel get it.
+          # Once it's tested, untick pre-release on GitHub and everyone gets it.
+          prerelease: true