diff --git a/CHANGELOG.md b/CHANGELOG.md
index 99ced87..d086420 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@ One line per change, grouped by the release that shipped it. Newest
 first. A release is a Cargo.toml bump plus a `v<version>` tag; the
 content repos pin the tag they run (see the end of this file).
 
-## Unreleased
+## 0.5.11 (2026-09-30)
 
 - Storylines (`src/content/variants.rs`, `docs/storylines.md`): any text a person reads may be a list, one entry per storyline, every list the same length; a visitor is given one storyline for the whole site (the `portal_storyline` cookie, a year) and reads it on every page and in every mail about their case. What the machine reads - a field's `name`, `options`, states, groups, paths - never varies. The lint refuses a list of another length. Records and answer events carry `storyline`, and `GET /report` gives counts per bucket, per storyline, per state, and nothing else.