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Release Tue, Aug 18, 2026 3 min read

Coolify 4.3.9

Original release notes

Features

  • Added an instance setting to control forced HTTPS redirects for the dashboard.

Fixes

  • Prevented DNS validation from hanging on unresponsive resolvers by adding five-second query timeouts (#11378, closes #11351).
  • Preserved active deployments when shared SSH multiplexing connections were refreshed or cleaned up (#11377, closes #11372).
  • Restored GitLab push and merge-request deployments that could fail with an HTTP 500 response (#11284, closes #11262).
  • Allowed long-running volume backups to run for up to ten hours while preserving custom timeouts on existing schedules (#11358, closes #11273).
  • Prevented SSL-enabled database containers from being left stopped during certificate ownership repair and container replacement (#11315, #11352, closes #11312).
  • Prevented OAuth provider settings from being erased when OAuth settings were re-seeded (#8210).
  • Enforced team-scoped authorization for scheduled tasks, preventing cross-team access and execution (#11239, closes #11238).
  • Prevented large bind-mounted files and oversized remote output from exhausting memory while services, tasks, logs, volumes, and configuration were read (#10960).
  • Made upgrades recover correctly when status data was temporarily unavailable after restart (#11350, closes #11347).
  • Prevented stuck container removal from blocking deployments; cleanup was deferred and retried instead.
  • Enabled compression for the dashboard over HTTPS (#10828, closes #10802).
  • Corrected S3 error email links so they pointed to the configured instance instead of localhost (#8633).
  • Fixed highlighted-button, spinner, and keyboard-shortcut contrast across custom themes (#11279).
  • Fixed account menus remaining open after clicking outside an expanded Appearance panel (#11374, closes #11373).
  • Centered icon tooltips over their triggers (#11382).

Improvements

  • Surfaced pending proxy configuration and outdated Traefik states with actionable warning indicators.
  • Made server warnings clearer, improved deployment-log scrolling, and corrected spacing in database backup settings.
  • Clarified proxy-label generation choices (#11362).
  • Clarified that saving Sentinel settings restarted Sentinel.
  • Made database and OAuth seed operations transactional to preserve existing data when seeding failed (#11360).

What's Changed

  • feat: add configurable Horizon dashboard access by @SelimSalihovic in https://github.com/coollabsio/coolify/pull/9354
  • fix(upgrade): handle missing status after restart by @andrasbacsai in https://github.com/coollabsio/coolify/pull/11350
  • fix(databases): redirect stdin for the SSL cert chown by @MarkosTech in https://github.com/coollabsio/coolify/pull/11315
  • fix: compress dashboard over HTTPS by @Prains in https://github.com/coollabsio/coolify/pull/10828
  • fix(notification): update storage email link in S3 error by @NrwPlay in https://github.com/coollabsio/coolify/pull/8633
  • fix(databases): chown SSL certs before container replacement by @andrasbacsai in https://github.com/coollabsio/coolify/pull/11352
  • fix(ui): improve highlighted button and spinner contrast by @fsioni in https://github.com/coollabsio/coolify/pull/11279
  • fix(webhook): restore GitLab source deployments by @drewmt in https://github.com/coollabsio/coolify/pull/11284
  • fix(services): avoid loading bind-mount file contents by @andrasbacsai in https://github.com/coollabsio/coolify/pull/10960
  • fix(backups): support long-running volume backups by @andrasbacsai in https://github.com/coollabsio/coolify/pull/11358
  • fix(security): enforce team-scoped authorization for scheduled tasks by @HelgeSverre in https://github.com/coollabsio/coolify/pull/11239
  • fix(oauth): prevent data loss during OAuth settings re-seed by @ryzenixx in https://github.com/coollabsio/coolify/pull/8210
  • fix: wrap seeders in db transactions by @peaklabs-dev in https://github.com/coollabsio/coolify/pull/11360
  • chore(ui): improve clarity of generate proxy label options by @peaklabs-dev in https://github.com/coollabsio/coolify/pull/11362
  • fix(ui): close account menu on outside click when appearance is expanded by @rohittiwari-dev in https://github.com/coollabsio/coolify/pull/11374
  • fix(ui): center icon tooltips over their trigger by @peaklabs-dev in https://github.com/coollabsio/coolify/pull/11382
  • fix(ssh): preserve sessions when recycling mux connections by @andrasbacsai in https://github.com/coollabsio/coolify/pull/11377
  • fix(dns): time out validation queries after five seconds by @andrasbacsai in https://github.com/coollabsio/coolify/pull/11378

New Contributors

  • @SelimSalihovic made their first contribution in https://github.com/coollabsio/coolify/pull/9354
  • @MarkosTech made their first contribution in https://github.com/coollabsio/coolify/pull/11315
  • @Prains made their first contribution in https://github.com/coollabsio/coolify/pull/10828
  • @NrwPlay made their first contribution in https://github.com/coollabsio/coolify/pull/8633
  • @fsioni made their first contribution in https://github.com/coollabsio/coolify/pull/11279
  • @HelgeSverre made their first contribution in https://github.com/coollabsio/coolify/pull/11239
  • @ryzenixx made their first contribution in https://github.com/coollabsio/coolify/pull/8210

Full Changelog: https://github.com/coollabsio/coolify/compare/v4.3.8...v4.3.9