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Proton Bridge

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Velocity2.5

Encrypted email bridge connecting Proton Mail to desktop email clients

proton.me/mail/bridge ↗

Proton Bridge v3.27.2 adds support for the oo7 keyring on Linux.

emailimaplinuxkeyringmaintenance
◆Current state
Proton Bridge's releases in 2026 have been almost entirely maintenance: monthly vulnerability patches, Go toolchain bumps, IMAP RFC-compliance fixes and recovery from corrupted sync state files. v3.27.2 adds one item, support for the oo7 keyring service, a Rust-based Secret Service implementation used on newer Linux desktops.
◆Where it's heading
Bridge remains a stable compatibility layer rather than a growing product. The small additions that do land are about running cleanly on more desktop environments.
◆Prediction
Expect the next monthly security patch release; the entries show no sign of feature work.

◆Recent moves

  1. 7d ago

    v3.27.2: support for the oo7 keyring service

    Adds the oo7 keyring as a credential store, which helps Linux users on desktops that ship it instead of GNOME Keyring. A one-line compatibility release in a maintenance year.

    View source ↗
  2. 1mo ago

    v3.27.1: recover from corrupted sync state

    v3.27.1 recovers from a corrupted sync state file and forces a file sync during writes. It's a narrow reliability fix in line with the maintenance-only pattern.

    View source ↗
  3. 2mo ago

    v3.27.0: August security patches and IMAP fixes

    v3.27.0 patches August 2026 vulnerabilities, caps MIME structure depth, and fixes RFC3501 compliance for IMAP responses. It's steady hardening with no new user capability.

    View source ↗
  4. 2mo ago

    v3.26.0: July security patches and cleanup

    v3.26.0 patches July vulnerabilities, adds a close-window shortcut, and removes unused go-proton-api code. The shortcut is the only visible change in a mostly internal release.

    View source ↗
  5. 5mo ago

    v3.25.0: clearer errors, legacy updater removed

    v3.25.0 maps more API errors to readable messages, bumps the Go toolchain, and removes legacy updater logic. It lowers support friction without changing features.

    View source ↗
  6. 6mo ago

    v3.24.2: new Go base image

    v3.24.2 moves to a Debian Bullseye-based Go image. It's a build change only.

    View source ↗