diff --git a/CHANGELOG.md b/CHANGELOG.md
index d941cdb..bd94221 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,7 +11,7 @@ Pre-v1.0.0 tags followed the pi npm version (`v{pi_version}[letter]`).
 
 ---
 
-## Unreleased
+## v1.9.0 — 2026-09-10
 
 **`shellcheck` is now in the image, because the release gate it depends on could
 not be run by anyone.** v1.8.14 made shell lint a release gate: `scripts/lint-shell.sh`