Mumble 1.3.4 Release Announcement

Posted on January 10, 2021 by Robert Adam

The Mumble team has released version 1.3.4 of the Mumble VoIP application. This is a bugfix and security release of the current and stable 1.3 series.

You can download the new version from our Downloads page or the GitHub release page or from within your Windows client or software package management system.

Changes in this Version


  • Fixed: Don’t use outdated (non-existent) notification icon names on Linux (#4705)
  • Fixed: Security vulnerability caused by allowing non http/https URL schemes in public server list (#4733)


  • Fixed: Exit status for actions like --version or --supw was always set to non-zero (#3998)


  • Fixed: Packet loss & audio artifacts caused by OCB2 XEX* mitigation (#4720)

Known issues

  • Overlay blocked by BattleEye. A request to whitelist it has been made.
  • Overlay blocked by CS:GO Trusted Mode.


  • The static server binary for Linux is using an outdated version of OpenSSL - see for details. This warning only applies to the package released by us named murmur-static_x86. It does not apply to our Ubuntu PPA releases or other maintained packages.