release: 2.10.4: origin-strict - a change with neither header is refused

Cut without asking, as the owner said on 2026-10-15. A POST with neither
Sec-Fetch-Site nor Origin is refused (the commit before this); the e2e
client sends Origin. go vet, go test (26 packages) and make e2e passed on
the test server for that tree. No migration, schema 12.

CHANGELOG [2.10.4]; pins in deploy/docker-compose.yml, README and the guide
(pin, build, the sample restore message); development's "from pin" and
row 36; roadmap row. No tag.

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

CHANGELOG.md

@@ -5,6 +5,10 @@ Format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/); version
 
 ## [Unreleased]
 
+## [2.10.4] - 2026-10-16
+
+The origin check is strict. No migration; schema 12.
+
 ### Security
 
 - **A change with no word of where it came from is refused**

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=2.10.3 \
->   -t ghcr.io/mixeme/selfpost:2.10.3 .
+> docker build -f build/Dockerfile --build-arg VERSION=2.10.4 \
+>   -t ghcr.io/mixeme/selfpost:2.10.4 .
 > ```
 
 ```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:2.10.3
+  ghcr.io/mixeme/selfpost:2.10.4
 ```
 
 **Get the setup URL** (pick one):

deploy/docker-compose.yml

@@ -23,7 +23,7 @@
 
 services:
   selfpost:
-    image: ghcr.io/mixeme/selfpost:2.10.3
+    image: ghcr.io/mixeme/selfpost:2.10.4
     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 `2.10.3`; adjust if semver changes mid-track):
+**Planned version cuts** (from pin `2.10.4`; adjust if semver changes mid-track):
 
 | Stage | ID | Cut |
 |---|---|---|
@@ -146,6 +146,7 @@ than the default «meaningful step» rule in [§ Commits and release build](#com
 | 33 | long, non-repeating queue ids | `2.10.1` (PATCH) |
 | 34 | phone-desktop-mode | `2.10.2` (PATCH) |
 | 35 | backup-reauth | `2.10.3` (PATCH) |
+| 36 | origin-strict | `2.10.4` (PATCH) |
 
 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

@@ -204,14 +204,14 @@ 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 `2.10.3`. **No 2.x image is
+deliberately never `:latest`. The current pin is `2.10.4`. **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=2.10.3 \
-  -t ghcr.io/mixeme/selfpost:2.10.3 .
+docker build -f build/Dockerfile --build-arg VERSION=2.10.4 \
+  -t ghcr.io/mixeme/selfpost:2.10.4 .
 ```
 
 `VERSION` must equal the tag: it is the version the backup check compares
@@ -953,7 +953,7 @@ 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 2.10.2 but this image is 2.10.3 — restore into the matching image (selfpost:2.10.2)
+backup: this backup was created by SelfPost 2.10.3 but this image is 2.10.4 — restore into the matching image (selfpost:2.10.3)
 ```
 
 Fix the tag in `docker-compose.yml` (build that tag as under [Fixed image

docs/roadmap.md

@@ -32,7 +32,7 @@ in `git log` and [CHANGELOG.md](../CHANGELOG.md).
 | health-setup-checks | Server › Health also checks the certificate's name, Postfix's greeting and the trusted proxy (was preflight) | agreed (2026-10-13) | — | — |
 | test-email | Send a test message from the panel (was preflight) | agreed (2026-10-13) | — | — |
 | inbound-antispam-panel | Inbound antispam journal + allow/deny lists | shipped `2.1.0` | 12/12 | [plans/inbound-antispam-panel.md](plans/inbound-antispam-panel.md) |
-| origin-strict | Refuse a state-changing request that carries neither `Sec-Fetch-Site` nor `Origin` (was csrf-tokens) | done 2026-10-16, unreleased | — | — |
+| origin-strict | Refuse a state-changing request that carries neither `Sec-Fetch-Site` nor `Origin` (was csrf-tokens) | shipped `2.10.4` | — | — |
 | backup-reauth | Ask for the account password before a backup or a domain export is downloaded | shipped `2.10.3` | — | — |
 | review-2026-08-followups | Remaining findings of the 2026-08-19 code review | closed 2026-10-14 (rows placed in [audit-2026-10-12](audit-2026-10-12.md)) | — | — |
 | panel-notifications | E-mail notifications about important events | shipped `2.3.0` | 10/10 | [plans/panel-notifications.md](plans/panel-notifications.md) |