release: 2.13.1: docs-audit - the documents and the panel's words against the code

No migration; schema 12. The pins (README, compose, guide), the guide's
backup example and the planned cuts.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -5,6 +5,11 @@ Format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/); version
 
 ## [Unreleased]
 
+## [2.13.1] - 2026-10-17
+
+The documents and the panel's words checked against the code. No migration;
+schema 12.
+
 ### Fixed
 
 - **A panel password's twelve characters are characters**: the minimum

README.md

@@ -112,8 +112,8 @@ outbound mail will not reach the real internet without DNS, PTR, and port 25.
 > local image and pulls nothing:
 >
 > ```sh
-> docker build -f build/Dockerfile --build-arg VERSION=2.13.0 \
->   -t ghcr.io/mixeme/selfpost:2.13.0 .
+> docker build -f build/Dockerfile --build-arg VERSION=2.13.1 \
+>   -t ghcr.io/mixeme/selfpost:2.13.1 .
 > ```
 
 ```sh
@@ -122,7 +122,7 @@ docker run --rm -d --name selfpost-try \
   -e SELFPOST_HOSTNAME=mail.local.test \
   -e PANEL_COOKIE_SECURE=false \
   -v selfpost-try-data:/data \
-  ghcr.io/mixeme/selfpost:2.13.0
+  ghcr.io/mixeme/selfpost:2.13.1
 ```
 
 **Get the setup URL** (pick one):

deploy/docker-compose.yml

@@ -23,7 +23,7 @@
 
 services:
   selfpost:
-    image: ghcr.io/mixeme/selfpost:2.13.0
+    image: ghcr.io/mixeme/selfpost:2.13.1
     restart: unless-stopped
     environment:
       SELFPOST_HOSTNAME: "${SELFPOST_HOSTNAME:?set the mail/panel hostname, e.g. mail.example.com}"

docs/development.md

@@ -107,7 +107,7 @@ than the default «meaningful step» rule in [§ Commits and release build](#com
 2. Git tag `vX.Y.Z` and publish the GitHub Release only on explicit request (see
    [§ Release image](#release-image)).
 
-**Planned version cuts** (from pin `2.13.0`; adjust if semver changes mid-track):
+**Planned version cuts** (from pin `2.13.1`; adjust if semver changes mid-track):
 
 | Stage | ID | Cut |
 |---|---|---|
@@ -150,6 +150,7 @@ than the default «meaningful step» rule in [§ Commits and release build](#com
 | 37 | health-setup-checks | `2.11.0` |
 | 38 | test-email | `2.12.0` |
 | 39 | local-time | `2.13.0` |
+| 40 | docs-audit | `2.13.1` |
 
 Docs-only prep (checklists in plans, no product code) uses the same per-step
 commit rule but **no** version cut until the next product stage ships.

docs/guide.md

@@ -205,14 +205,14 @@ cat ./data/setup-token
 #### Fixed image tag
 
 `deploy/docker-compose.yml` pins an explicit version (`ghcr.io/mixeme/selfpost:X.Y.Z`),
-deliberately never `:latest`. The current pin is `2.13.0`. **No 2.x image is
+deliberately never `:latest`. The current pin is `2.13.1`. **No 2.x image is
 published on ghcr.io yet** (the newest there is `1.3.0`); until one is, build
 it from the checkout under the pinned name, and Compose uses the local image
 instead of pulling:
 
 ```sh
-docker build -f build/Dockerfile --build-arg VERSION=2.13.0 \
-  -t ghcr.io/mixeme/selfpost:2.13.0 .
+docker build -f build/Dockerfile --build-arg VERSION=2.13.1 \
+  -t ghcr.io/mixeme/selfpost:2.13.1 .
 ```
 
 `VERSION` must equal the tag: it is the version the backup check compares
@@ -989,7 +989,7 @@ A version mismatch at step 5 refuses to start and leaves `/data` untouched —
 the panel exits with a message naming the tag to use, e.g.:
 
 ```
-backup: this backup was created by SelfPost 2.12.0 but this image is 2.13.0 — restore into the matching image (selfpost:2.12.0)
+backup: this backup was created by SelfPost 2.13.0 but this image is 2.13.1 — restore into the matching image (selfpost:2.13.0)
 ```
 
 Fix the tag in `docker-compose.yml` (build that tag as under [Fixed image