TautWeekly for Plex v0.20.4

v0.20.4 makes the main Manager header Refresh aware of stale or missing
stable-release status without making local status depend on the Internet.

Local first, update check second

The header control finishes its normal local and cached status reload first.
Only after that succeeds does it consult the backend's typed update status and
start a non-blocking version check when one is recommended. GitHub latency or
failure never delays or fails the overall local refresh; progress and sanitized
failure remain in Settings > Updates.

Authenticated application entry and the explicit Check now action retain
their existing semantics. Repeated header clicks reuse the five-minute success
cache, failure backoff, and single active-check lock. A later header refresh can
start a newly stale or otherwise applicable check because no session-wide flag
suppresses future attempts.

Preserved update boundary

The check retains the 24-hour stale threshold, eight-second deadline, fixed
stable GitHub release endpoint, strict release and platform-asset validation,
authentication, same-origin and CSRF protection, public-only cached metadata,
offline-capable health, and package-owned install guidance. Refreshing
Tautulli choices, Tailscale access, schedules, operations, configuration
status, or the browser does not initiate an update request.

The shared production Manager provides the same behavior on Windows, macOS
Docker, NAS/Docker, QNAP, Unraid, compatible Docker, native Linux, and FreeBSD.
The static GUI Preview mirrors the sequence entirely in memory without network
access.

Update existing installations

Back up private data, then use the documented update path for the installed
package. Existing configuration, credentials, schedules, output, backups,
operation history, and update cache remain in their private locations.

Validation

Regression coverage exercises stale, fresh, backoff, active, repeated-click,
unsupported, failure, authenticated-entry, manual-check, and scoped-control
cases. Release validation also includes the full Manager and installer test and
vet suites, maintained cross-builds, desktop and mobile browser QA, repository
privacy and package contracts, shell and PowerShell suites, reproducible
archives and checksums, the Windows installer lifecycle, and the
multi-architecture container build and boot tests.