The in-app updater validated download URL and channel but never compared
the target against the running version, so any valid older release asset
URL installed silently while the UI presented it as an update. ApplyUpdate
now rejects targets at or below the running version on both the community
and Pro broker paths before any history entry or download, with an explicit
allowDowngrade opt-in on POST /api/updates/apply for sanctioned cases.
The rollback half already existed but nothing reached it: createBackup
retains three backups, restoreBackup works, and history records BackupPath,
yet no endpoint or UI called restoreBackup. RollbackToBackup restores the
retained backup recorded on a history entry after re-validating the path
against the managed backup roots, shares the update-in-flight slot with
ApplyUpdate, records an Action rollback history entry linked to the source
update, marks that update rolled_back, streams a restoring stage through
the existing status/SSE machinery, and restarts via the exit-for-systemd
path. POST /api/updates/rollback carries it with the same RequireAdmin plus
settings:write gating as apply. Rollback is purely local, so the Pro
edition gate never applies to it.
Settings now has the update history surface that was missing entirely:
nothing called /api/updates/history before. The Updates panel lists recent
updates with a Roll back action on successful entries whose backup is still
retained, behind a confirmation dialog naming the restore version, and the
rollback rides updateStore's shared pending-apply marker for the
post-restart toast. restoreBackup also honors PULSE_INSTALL_DIR now instead
of hardcoding /opt/pulse, matching createBackup.
Contract deltas ride along: api-contracts picks up the rollback transport
and downgrade-conflict semantics, agent-lifecycle and storage-recovery pin
rollback as server self-update plumbing, ai-runtime and cloud-paid pin the
update watcher stage vocabulary as non-assistant non-paid shell chrome, and
frontend-primitives adds UpdateHistorySection as the history/rollback
presentation owner with matching architecture proofs.
The only production consumer of the UpdaterRegistry is the plan endpoint
(GET /api/updates/plan); every real apply runs through the in-Go pipeline
in manager.go ApplyUpdate, with concurrency held by updateMu/updateInFlight.
The InstallShAdapter Execute/Rollback path (install.sh piping, rollback
binary download, health wait) and the UpdateQueue were never called outside
tests, so fixes made there silently did nothing. Adapters are now plan
providers only: the Updater interface keeps SupportsApply, PrepareUpdate,
and GetDeploymentType, pinned by the new registry proof in
internal/api/updates_test.go.
The orphaned fetchAndVerifyReleaseSignature helper goes with it; its
fail-closed sidecar tests now exercise the manager's
downloadAndVerifyReleaseSignature directly. The deployment-installability
sshsig invariant now names the manager pipeline as the only surface that
fetches release artifacts, and api-contracts, storage-recovery, and
agent-lifecycle pin the same plan-provider-only shape at their update
transport boundaries. Stale adapter references in build-release.sh,
validate-release.sh, and the installtests comments are updated to match.
The in-app updater and the unattended timer both target the public
rcourtman/Pulse community assets, so a Pro install that used them was
silently downgraded to community. Guard 2 (983a89326) blocked in-app
apply on the Pro edition, which stopped the downgrade but left Pro
installs with no update path except manual portal downloads. That
friction is a plausible driver of the runtime split: as of 2026-07-08
only 10 of 66 active paid licenses have any Pro-runtime install.
Root fix: the compiled Pro binary now checks and applies updates
through the license server download broker (GET /v1/downloads/pulse-pro
with the installation token and instance fingerprint). The check
compares against the broker's pinned private release instead of GitHub,
respecting the stable/rc channel guard. Apply re-resolves fresh signed
R2 URLs at apply time, verifies the archive against the same pinned
pulse-installer SSHSIG key plus the broker manifest sha256, and refuses
GitHub-shaped download URLs outright. An unactivated Pro binary still
refuses with the portal fallback. The community edition path is
unchanged.
The update banner restores in-app apply for auto-updatable Pro
deployments and keeps the portal instructions for deployments the
updater cannot drive (Docker). scripts/pulse-auto-update.sh now skips
when the installed binary reports Pulse Pro so the unattended timer can
never reinstall community over Pro.
Note: internal/updates/pro_update.go and manager_pro_update_test.go for
this change landed one commit early inside 313552deb via a parallel
session committing a shared staged index; this commit completes the
wiring they belong to.
- Fix SSRF and rate limit bypass in SendEnhancedWebhook by validating the rendered URL.
- Fix rate limit spoofing in updates API by using secure IP extraction (trusted proxies).
- Fix memory leak in metrics history by correctly clearing fully stale data series.
- Fix public URL poisoning by preventing overwrites when explicitly configured.
This commit implements a comprehensive refactoring of the update system
to address race conditions, redundant polling, and rate limiting issues.
Backend changes:
- Add job queue system to ensure only ONE update runs at a time
- Implement Server-Sent Events (SSE) for real-time update progress
- Add rate limiting to /api/updates/status (5-second minimum per client)
- Create SSE broadcaster for push-based status updates
- Integrate job queue with update manager for atomic operations
- Add comprehensive unit tests for queue and SSE components
Frontend changes:
- Update UpdateProgressModal to use SSE as primary mechanism
- Implement automatic fallback to polling when SSE unavailable
- Maintain backward compatibility with existing update flow
- Clean up SSE connections on component unmount
API changes:
- Add new endpoint: GET /api/updates/stream (SSE)
- Enhance /api/updates/status with client-based rate limiting
- Return cached status with appropriate headers when rate limited
Benefits:
- Eliminates 429 rate limit errors during updates
- Only one update job can run at a time (prevents race conditions)
- Real-time updates via SSE reduce unnecessary polling
- Graceful degradation to polling when SSE unavailable
- Better resource utilization and reduced server load
Testing:
- All existing tests pass
- New unit tests for queue and SSE functionality
- Integration tests verify complete update flow
