v2.2.3

nats-io/nats-serverv2.2.3Aug 14, 2026by stenya

Upgrading?

AI Summary

This release prioritizes stability and reliability by fixing critical bugs related to DNS handling, mDNS functionality, service worker recovery, and Windows uninstall behavior.

Key Highlights

  • Fixed oversized DNS packets that killed the internal DNS listener.
  • Resolved multiple mDNS reliability and correctness issues.
  • Fixed Portmaster crash on first restart on some systems.
  • Fixed Windows uninstall overwriting unrelated registry entries.

New Features

  • Enabled HTTP/2 for DNS-over-HTTPS resolvers.
  • Added block reason logging for denied DNS query logs.
  • Added fingerprint tooltips to app profile cards in the 'All Apps' view.
  • Automatically repair corrupted intel/resource update artifacts.
  • Added tooltips and group entries in the tools menu.

Full Release Notes

## What's Changed
* fix: Oversized DNS packets could kill the internal DNS listener by @stenya in https://github.com/safing/portmaster/pull/2227
* fix: Multiple mDNS reliability and correctness issues by @stenya in https://github.com/safing/portmaster/pull/2229
* fix: Internal service workers could silently stop recovering after a failure by @stenya in https://github.com/safing/portmaster/pull/2228
* fix: Portmaster crash after the first restart on some systems by @stenya in https://github.com/safing/portmaster/issues/2191
* fix: (Windows) Uninstall overwriting unrelated startup registry entries by @GCDBusiness in https://github.com/safing/portmaster/pull/2217
* fix: (Windows) Logging regression that broke log output after service restart by @stenya in https://github.com/safing/portmaster/pull/2221
* fix: (UI) Enter key accidentally triggering delete buttons in the profile editor by @stenya
* improvement: Automatically repair corrupted intel/resource update artifacts by @floze-the-genius in https://github.com/safing/portmaster/pull/2196
* improvement: Enable HTTP/2 for DNS-over-HTTPS resolvers by @stenya
* improvement: Include block reason in denied DNS query logs by @stenya
* improvement: (UI) Add fingerprint tooltip to app profile cards in "All Apps" view by @stenya in https://github.com/safing/portmaster/issues/2183
* improvement: (UI) Add tooltips and group entries in the tools menu by @stenya

## New Contributors
* @GCDBusiness made their first contribution in https://github.com/safing/portmaster/pull/2217
* @floze-the-genius made their first contribution in https://github.com/safing/portmaster/pull/2196

**Full Changelog**: https://github.com/safing/portmaster/compare/v2.2.1...v2.2.3

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