diff --git a/.version b/.version
index 4004af690..e17948f03 100644
--- a/.version
+++ b/.version
@@ -1 +1 @@
-2.90.0
+2.90.0-beta.1
diff --git a/flake.nix b/flake.nix
index 1c090cadf..369395bfa 100644
--- a/flake.nix
+++ b/flake.nix
@@ -54,7 +54,7 @@
         (Run `touch .nocontribmsg` to hide this message.)
       '';
 
-      officialRelease = false;
+      officialRelease = true;
 
       # Set to true to build the release notes for the next release.
       buildUnreleasedNotes = false;