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Mumble

COLLAB
Velocity2.5

Open-source voice chat software

Mumble keeps its 1.5 VoIP line in slow maintenance while the 1.6.x rewrite inches through RC testing.

voipopen-sourcevoice-chatmaintenance-releasecross-platform
Current state
Mumble is a mature open-source VoIP client. The 1.5 line is in long-tail maintenance — v1.5.915 is its fifth stable release — while the next-generation 1.6.x series sits in release-candidate testing. Cadence is slow and steady, with stable point releases landing months apart.
Where it's heading
Two tracks run in parallel: incremental 1.5 stable releases that fix bugs and platform quirks, and the 1.6.x RC that carries the real forward motion. A recurring friction point is platform packaging — pre-compiled macOS binaries for the 1.5 series are no longer provided, and the in-game overlay keeps getting blocked by anti-cheat systems.
Prediction
Expect continued 1.5 maintenance point releases while 1.6.x works toward a stable debut; the dropped macOS binaries and overlay anti-cheat compatibility are the likeliest near-term focus.

Recent moves

  1. 23d ago

    v1.5.915

    The fifth stable release of the 1.5 series continues routine maintenance, but ships with a notable regression: pre-compiled macOS binaries are no longer available for the 1.5 line. It keeps the mature series ticking rather than advancing it.

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  2. 2mo ago

    v1.5.901

    The fourth stable 1.5 release, another maintenance drop carrying known issues around Windows/bonjour server crashes and unsigned macOS binaries. Steady upkeep of the current stable line.

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  3. 5mo ago

    v1.6.870 (1.6.x RC)

    ⚡ SPARK

    The first release candidate of the 1.6.x series is where Mumble's real forward motion lives — the next-generation line entering public testing after years on 1.5. It marks the branch that will eventually succeed the current stable series.

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  4. 9mo ago

    v1.5.857

    The third stable 1.5 release, a maintenance drop that continued fixing platform quirks while carrying the recurring macOS-signing and overlay-blocking known issues. Incremental upkeep of the stable line.

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  5. 1y ago

    v1.5.735

    The second stable 1.5 release, an earlier maintenance milestone in the series with the same long-standing macOS-binary and overlay compatibility caveats. Part of the slow, steady 1.5 upkeep cadence.

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  6. 2y ago

    Mumble 1.5 reaches first stable after two years in RC

    ⚡ SPARK

    The first stable cut of the 1.5 series, arriving almost two years after 1.4.287 and following three RCs across early 2024. This is the moment self-hosted server operators waiting for a sanctioned upgrade path got the green light.

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