====== v7.2.1 — Catch setup and retained rollback ======

Native Catch is live in owner Lobby 1. [[lobbies:catch|Catch guide]] · [[status:start|Current rooms]].

This patch reuses an unused lobby's retained public Discord panel as well as its control channel. Missing or colliding routes are refused before committing configuration; existing rooms keep their panels and permissions.

Completed Catch setup transactions can be reviewed and rolled back after an upgrade through the exact root-protected committed installation history. The original runtime digest stays recorded. Pending, foreign or unverifiable transactions remain blocked. Configuration rollback retains Catch history/opinions and current sibling preferences while keeping a compatible controller and hub.

The exact reviewed predecessors are v7.1.20 and v7.2.0. This is a shared-controller release: automatic application waits for every configured room on that host to become safely empty. Upgrading does not add or replace rooms, change authorization/enrollment, or enable an opted-out service. Existing Standard/Mania settings and reliability repairs remain included.

===== Scope and qualification =====

The full native catalog has 13,395 records, including 12,317 eligible Ranked/Approved charts before room filters. Catch is NM, fixed difficulty, initial 3.00–4.00★; Loved, conversions, styles, farm and automatic difficulty stay excluded. Gameplay, supervisor code, dependency wheels and legacy readers are unchanged from v7.2.0.

Sixteen corrective unit cases, a fresh installed full-catalog Catch case, a retained v7.2.0 Catch-plan upgrade/rollback and a two-room signed automatic v7.1.20 upgrade passed. Configuration rollback retained Catch opinions and restarted the original rooms; enabled four-room Discord routing was checked. All invented donor rooms closed and processes were retired. Public artifact scans have zero unresolved findings. The broader v7.2.0 full-catalog and compatibility evidence remains applicable to unchanged code; the entire repository suite was not repeated, and historical unavailable/failing fixtures are documented in VALIDATION.json.

The actual owner startup, artwork, website and Discord connection are verified separately. No Catch player gameplay or manual Discord-button acceptance is claimed yet. The independently pinned owner recovery code was explicitly reviewed and refreshed without changing its policy or boot preferences.

===== Operators =====

Use the verified installer and Native Catch operator guide in the release. Catch addition is explicit and takes reviewed JSON through ''catch-pilot-prepare --settings-stdin''. Keep state on any uncertain result; do not repeat room creation or delete a journal. The optional normalization helper only accepts stopped, positively closed diagnostic rows and creates no rooms.

Qualified installation target remains Linux x86_64/glibc, Python 3.12 and systemd. ARM and additional operating systems are not qualified by this release.

[[https://github.com/Aves-Knoot/poolrotater-v7-pilot/releases/tag/v7.2.1|Installer, checksums and exact validation evidence]] · [[updates:v7_2_0|Native Catch foundation]] · [[updates:start|Release history]]