Checkmate

What's New

• Configurable schedulers and a new worker model power a major reliability and throughput upgrade. Checkmate now ships a less-simple queue alongside the existing in-memory option, with selectable queue type, worker fleet, and concurrency settings — so larger fleets of monitors can be scheduled and executed without saturating a single process. New worker stats and a queue/jobs table expose what's running, what's pending, and what failed, making the scheduler observable instead of a black box.
• DNS monitors are now a first-class monitor type. Both the backend provider and the frontend create/edit experience have landed, so DNS records can be monitored end-to-end without external tooling.
• Maintenance windows now support groups and recurring schedules. Operators can group monitors under a single maintenance window and run recurring schedules cleanly, with the recurring-edit validation gap fixed so editing an active window no longer corrupts its schedule. Past-dated one-time windows are now rejected at creation, eliminating a class of "silently inactive" maintenance entries.
• Monitor tags ship across backend, frontend, and monitor summaries. Tags can be assigned to monitors and surface consistently in summaries and lists, with a centered Tag-label layout that fits the existing design system.
• Bulk pause/resume and a partial-failure warning land for fleet operators. Multiple monitors can now be paused or resumed in one action, and when an operation only partially succeeds the UI surfaces a partial failure warning with the failed count instead of silently swallowing it.
• Uptime progress indicators have been added across monitors, infrastructure, pagespeed, and status pages, giving an at-a-glance read on availability without drilling into each row.
• Mobile and desktop pagespeed strategies are now selectable per monitor, so a single pagespeed monitor can target either form factor instead of being locked to one.
• ntfy is now a supported notification channel, joining email, Discord, Slack, and webhooks for alert delivery.
• A new Catalan (ca) translation has been added, and 16 existing locales received a gap-closing translation pass so newly added strings are no longer rendered in English. README translations have also been added for all supported languages.
• The status page now uses the operator-configured timezone on public pages, so visitors and operators see the same timestamps regardless of browser locale.
• Status code 5000 is now rendered as "Down" with a subtype tooltip, replacing a confusing raw code with a human-readable status plus the underlying reason on hover.
• SMTP configuration now accepts an optional sender display name, so outgoing alert emails arrive with a meaningful "From" name instead of just an address.
• Capture endpoint and authorization-secret fields on the infrastructure monitor form now have inline guidance, removing a frequent setup-time stumbling block.
• API docs are now generated directly from the Zod validation schemas, so the published OpenAPI spec stays in sync with what the server actually accepts.
• Mongo diagnostics, raised recent-check limits, connection reuse, and a bumped concurrency default round out a wider performance and observability pass on the server side.
• A blank-screen crash when clearing the timezone search field has been fixed, alongside fixes for status-page save mutation, pause/resume of geo jobs, histogram response-time rendering, monitor-summary tag rendering, page-index reset, jobs pagination, and a husky pre-commit guard that no longer fires during merges or rebases.
• Mono and ARM container images can now run as a non-root user (UID 1000), aligning with hardened-runtime and Kubernetes security policies.
• Dependencies have been refreshed across the stack — axios, multer, vite, lodash, and a sweep of transitive bumps (picomatch, flatted, follow-redirects, postcss, yaml, protocol-buffers-schema, fast-xml-parser) — closing known advisories and keeping the build current.

Thank you to our new contributors @harsh-aghara, @adosaiguas, @Iriome-Santana, and @jhcpeixoto for their first contributions in this release!

What's Changed

• Fix: prevent blank screen crash when clearing timezone search field by @ayshaL in https://github.com/bluewave-labs/Checkmate/pull/3583
• feat(smtp): add optional sender display name to SMTP configuration by @gorkem-bwl in https://github.com/bluewave-labs/Checkmate/pull/3607
• chore(deps): bump axios to 1.15.2 by @gorkem-bwl in https://github.com/bluewave-labs/Checkmate/pull/3611
• chore(deps): bump multer to 1.4.5-lts.2 by @gorkem-bwl in https://github.com/bluewave-labs/Checkmate/pull/3612
• chore(deps): bump lodash to 4.18.1 (transitive) by @gorkem-bwl in https://github.com/bluewave-labs/Checkmate/pull/3613
• chore(deps): bump picomatch (transitive) by @gorkem-bwl in https://github.com/bluewave-labs/Checkmate/pull/3614
• chore(deps): bump flatted (transitive) by @gorkem-bwl in https://github.com/bluewave-labs/Checkmate/pull/3615
• chore(deps): bump vite to ^6.4.2 by @gorkem-bwl in https://github.com/bluewave-labs/Checkmate/pull/3616
• chore(deps): bump follow-redirects (transitive) by @gorkem-bwl in https://github.com/bluewave-labs/Checkmate/pull/3617
• chore(deps): bump postcss (transitive) by @gorkem-bwl in https://github.com/bluewave-labs/Checkmate/pull/3618
• chore(deps): bump postcss (transitive) by @gorkem-bwl in https://github.com/bluewave-labs/Checkmate/pull/3619
• chore(deps): bump yaml (transitive) by @gorkem-bwl in https://github.com/bluewave-labs/Checkmate/pull/3620
• chore(deps): bump protocol-buffers-schema (transitive) by @gorkem-bwl in https://github.com/bluewave-labs/Checkmate/pull/3621
• chore(deps): bump fast-xml-parser (transitive) by @gorkem-bwl in https://github.com/bluewave-labs/Checkmate/pull/3622
• fix: mutate status page on save by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3624
• feat: raise max recent checks by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3623
• fix: extract duplicate code, add slot components by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3625
• feat: Generate API docs from zod schema by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3627
• fix(status-page): use operator-configured timezone on public pages by @gorkem-bwl in https://github.com/bluewave-labs/Checkmate/pull/3630
• feat(infrastructure): clarify capture endpoint and authorization secret on monitor form by @gorkem-bwl in https://github.com/bluewave-labs/Checkmate/pull/3629
• fix: pause resume geo jobs by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3632
• fix: queue table by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3633
• feat/bulk pause resume by @harsh-aghara in https://github.com/bluewave-labs/Checkmate/pull/3626
• docs: rename frontend-conventions to coding-conventions, add backend rules by @gorkem-bwl in https://github.com/bluewave-labs/Checkmate/pull/3637
• feat(checks): render status code 5000 as "Down" with subtype tooltip by @gorkem-bwl in https://github.com/bluewave-labs/Checkmate/pull/3638
• fix(maintenance): reject past-dated one-time windows at creation by @gorkem-bwl in https://github.com/bluewave-labs/Checkmate/pull/3640
• feat: dns provider by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3642
• i18n: add Catalan language by @adosaiguas in https://github.com/bluewave-labs/Checkmate/pull/3643
• feat: fe/dns monitors by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3644
• fix: allow mono and arm containers to run as non-root user (UID 1000) by @Iriome-Santana in https://github.com/bluewave-labs/Checkmate/pull/3584
• feat: adding mobile/desktop pagespeed strategy by @akashmannil in https://github.com/bluewave-labs/Checkmate/pull/3470
• fix: husky guard pre-commit against merge/rebase state by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3645
• fix: histogram-response-times by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3648
• feat: maintenance window groups by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3649
• Feat/fe/maintenance window groups by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3650
• fix: update query by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3652
• Fix/maintenance recurring edit validation by @ZeinebMegaadi in https://github.com/bluewave-labs/Checkmate/pull/3547
• fix(i18n): close translation gaps across 16 locales by @gorkem-bwl in https://github.com/bluewave-labs/Checkmate/pull/3653
• add password and newPassword to editUserValidation by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3654
• fix: width for stats size, noWrap for stats by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3655
• feat: monitor tags by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3661
• fix: monitor summary with tags by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3664
• Feat/fe tags by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3663
• fix: update monitors on maintenance window change by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3668
• Expose failedCount and surface partial failure warning in UI by @harsh-aghara in https://github.com/bluewave-labs/Checkmate/pull/3670
• Add indeterminate icon to Checkbox component for consistency by @harsh-aghara in https://github.com/bluewave-labs/Checkmate/pull/3669
• fix: add tests for mw and monitor services by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3671
• fix: add centering box for Tag labels by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3672
• chore: bump dependencies by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3674
• Feat/mongo diagnostics by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3675
• reset page index by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3676
• feat: bump concurrency by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3677
• Feat: Uptime Progress Indicator by @Br0wnHammer in https://github.com/bluewave-labs/Checkmate/pull/3673
• docs: add README translations for all supported locales by @gorkem-bwl in https://github.com/bluewave-labs/Checkmate/pull/3687
• feat: Configurable Schedulers by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3688
• fix: move listener registration to constructor by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3689
• feat: workers by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3691
• Feat: Progress indicator status page by @Br0wnHammer in https://github.com/bluewave-labs/Checkmate/pull/3692
• feat: worker stats by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3693
• fix: less simple queue tweaks by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3695
• fix: connection reuse by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3696
• fix: jobs pagination by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3697
• Feat: Progress indicator infra & pagespeed by @Br0wnHammer in https://github.com/bluewave-labs/Checkmate/pull/3694
• feat: add ntfy notification support by @jhcpeixoto in https://github.com/bluewave-labs/Checkmate/pull/3684
• bump version by @ajhollid in https://github.com/bluewave-labs/Checkmate/pull/3700

New Contributors

• @harsh-aghara made their first contribution in https://github.com/bluewave-labs/Checkmate/pull/3626
• @adosaiguas made their first contribution in https://github.com/bluewave-labs/Checkmate/pull/3643
• @Iriome-Santana made their first contribution in https://github.com/bluewave-labs/Checkmate/pull/3584
• @jhcpeixoto made their first contribution in https://github.com/bluewave-labs/Checkmate/pull/3684

Full Changelog: https://github.com/bluewave-labs/Checkmate/compare/v3.7.1...v3.8.0