Mumble 1.6.1001 (RC 2)
Posted on October 23, 2026 by Hartmnt
We are happy to announce the second release candidate of the next Mumble stable series: version 1.6. We want to get this stable as soon as possible, so please make sure to report any issues you encounter in our GitHub issue tracker.
For the first time we are including macOS arm64 pre-built binaries for this release.
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.
macOS arm64
We are including macOS arm64 binaries in this release for the first time. Please let us know, if they work as intended. macOS binaries are still not signed nor notarized and this will not change for the foreseeable future.
Changelog
This is the full list of changes since Mumble version 1.6.870.
Client
- Added: Option to prevent restoring and saving window states on startup (#7244)
- Added: Print Mumble version to log on startup (#7252)
- Added: Significantly improve chat image viewer (#7210)
- Changed: Reduce the quantity of window state information in settings file (#7241)
- Fixed: Actually honor the
--skip-settings-backup-promptCLI flag (#7245) - Fixed: Color scheme detection on Sway (#7120)
- Fixed: Connect Dialog timing issue (#7115)
- Fixed: Don’t allow to link channel to itself (#7106)
- Fixed: Don’t send placeholder when using paste+send, if window is out-of-focus (#7121)
- Fixed: Make invalid certificate dialog actually display certificate (#7197)
- Fixed: Memory leak related to input devices being connected (#7235)
- Fixed: Move “Quit” action to application menu on macOS (#7156)
- Fixed: Prevent crash loop due to incompatible window state information in settings file (#7241)
- Fixed: Rare library loading issue (#7324)
- Fixed: Remove need for successful ping before trying to connect (#7371)
- Fixed: Replace remaining legacy DBus domain with “info.mumble” (#7155)
- Fixed: Skip UDP ping when TCP mode is forced (#7302)
- Fixed: Use default preferences icon in macOS menu (#7156)
- Fixed: Use “search” servername as template when adding new favorite (#7377)
- Fixed: Windows audio dropout issues especially related to RDP sessions (#7134)
Server
- Fixed: Avoid redundant newline in log message (#7420)
- Fixed: Broadcast the actual suppression state after ACL changes (#7402)
- Fixed: Broken server GUI rendering on Windows (#7322)
- Fixed: Crash when a user is both added to and removed from a group at once (#7402)
- Fixed: Crash when adding unregistered user to a group using ICE (#7119)
- Fixed: Disallow data flow to and from unauthenticated connections (#7398)
- Fixed: Don’t try to migrate channel properties with ’null’ value (#7408)
- Fixed: Drop connections that fail to authenticate in time (#7417)
- Fixed: Ensure qdBasePath always exists on Windows (#7327)
- Fixed: Flush the ACL cache of the users whose temporary groups changed (#7402)
- Fixed: Password generator not using the full alphabet (#7313)
- Fixed: Prevent unregistered users from matching temporary groups of session 1 (#7402)
- Fixed: Reject unauthenticated use of reserved names (#7254)
- Fixed: Respect TLS 1.3 sslCiphers config option (#7309)
- Fixed: Server crash related to malformed packets (#7236)
- Fixed: Server crash related to zeroconf on Windows (#7133)
- Fixed: Store the password passed to ICE registerUser (#7402)
- Fixed: Try to make config RegEx match everything that Mumble 1.5 did (#7386)
- Fixed: Various server-side bug fixes which could lead to crashes or denial-of-service (#7398 #7402)
Both
- Fixed: Crash when invalid varint encodings are parsed (#7148)
- Fixed: Ensure we never write to an invalid socket (#7168)
- Fixed: IP netmask handling (#7283)
- Fixed: Network Quality of Service setting with IPv6 (#7345)
- Fixed: Prevent double delete when destroying a channel with children (#7402)
- Fixed: Versioning scheme on Windows 10 (21H1) or greater (#7263)
Positional audio plugins
- Added: Plugin for Remnant II (#7442)
- Added: Plugin for Teardown (#7443)
- Fixed: Missing “Grounded” plugin with Windows installer (#7185)