Release 1.7.5

- CHANGELOG: cut the 1.7.5 release (dated 2026-06-11); reset Unreleased.
- VERSION: 1.7.4 -> 1.7.5.
- Manuals (DA + EN): bump version stamps.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

CHANGELOG.md

@@ -11,6 +11,14 @@ Version numbers follow [Semantic Versioning](https://semver.org/spec/v2.0.0.html
 
 ---
 
+## [1.7.5] — 2026-06-11
+
+### Fixed
+
+- **Stale UI after updating the server** — Flask served `/static/` files with no `Cache-Control` header, so browsers cached JS/CSS heuristically (often for days). After a server update — including the new in-app self-update, whose post-install reload hit the cache — the backend was new but the frontend stayed old, and fixes appeared "not to work" until a hard refresh. `SEND_FILE_MAX_AGE_DEFAULT = 0` now makes every static file revalidate via ETag: unchanged files answer with a cheap 304, changed files are re-fetched immediately on the next normal page load.
+
+---
+
 ## [1.7.4] — 2026-06-10
 
 ### Fixed

VERSION

@@ -1 +1 @@
-1.7.4
+1.7.5

docs/manuals/MANUAL-DA.md

@@ -1,6 +1,6 @@
 # GDPR Scanner — Brugermanual
 
-Version 1.7.4
+Version 1.7.5
 
 ---
 
@@ -671,4 +671,4 @@ For en typisk skole- eller kommunescanning er omkostningen ubetydelig — Claude
 
 ---
 
-*GDPR Scanner v1.7.4 — teknisk opsætning og konfiguration: se README.md*
+*GDPR Scanner v1.7.5 — teknisk opsætning og konfiguration: se README.md*

docs/manuals/MANUAL-EN.md

@@ -1,6 +1,6 @@
 # GDPR Scanner — User Manual
 
-Version 1.7.4
+Version 1.7.5
 
 ---
 
@@ -671,4 +671,4 @@ For a typical school or municipality scan the cost is negligible — Claude Haik
 
 ---
 
-*GDPR Scanner v1.7.4 — for technical setup and configuration see README.md*
+*GDPR Scanner v1.7.5 — for technical setup and configuration see README.md*

gdpr_scanner.py

@@ -317,6 +317,11 @@ app = Flask(__name__,
             template_folder=_os.path.join(_BASE_DIR, "templates"),
             static_folder=_os.path.join(_BASE_DIR, "static"))
 
+# Static files must revalidate on every load (cheap 304s via ETag). Without
+# this there is no Cache-Control header and browsers cache JS/CSS heuristically
+# for days — after a self-update the backend is new but the UI stays stale.
+app.config["SEND_FILE_MAX_AGE_DEFAULT"] = 0
+
 # Session secret — derived from machine_id so it survives restarts without a separate file.
 # machine_id is also the Fernet key (base64-encoded 32 bytes); we use its raw bytes as the secret.
 try: