diff --git a/CHANGELOG.md b/CHANGELOG.md
index 81edc76..09bae73 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,14 @@ Tags follow the pi npm version: `v{pi_version}[letter]` — bare tag for the fir
 
 ## Unreleased
 
+_(no changes since v0.78.0b)_
+
+## v0.78.0b — 2026-06-03
+
+Container-level rebuild on pi `0.78.0` (unchanged): re-brands the pi-only build
+as a thin `FROM joakimp/pi-devbox:base-pi-only`, inheriting fork/recall and
+host-OS-agnostic LAN access. Letter-suffix release (pi version unchanged).
+
 ### Changed: refactored to re-brand the opencode-devbox `pi-only` variant
 
 pi-devbox no longer installs pi itself. The `Dockerfile` is now a thin