# Proton Mail Bridge v3.26.0 — Bridge Pamban v3.26.0

- Product: Proton Mail Bridge (https://whatsnew.fyi/product/proton-mail-bridge)
- Vendor: Proton
- Date: 2026-08-17
- Version: v3.26.0
- Original notes: https://github.com/ProtonMail/proton-bridge/releases/tag/v3.26.0
- Permalink: https://whatsnew.fyi/product/proton-mail-bridge/releases/v3.26.0
- Labels: Pre-release; Platforms: Desktop

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **added** — Added logging to current auth session ID
- **added** — Added meta+W shortcut to close the main window
- **added** — Added a marker for the initial eventID during sync
- **changed** — Calendar Event doesn't mutate a copy in go-proton-api
- **removed** — Remove unused worker-pool implementation in go-proton-api
- **removed** — Removed unused futures implementation in go-proton-api
- **changed** — HV requests resolve to correct API environment
- **security** — Vulnerabilities patched July 2026
- **changed** — Replaced FILENAME_VARIABLE with OUTPUT_SCRIPT for bridge-gui
- **changed** — Go Toolchain bumped to 1.26.4
- **changed** — Replaced gomock with uber-go/mock
- **security** — Go Toolchain bumped to 1.26.3 and vulnerabilities patched for June 2026
- **changed** — Empty address list now returns nil instead of empty list per RFC 3501
- **changed** — Literals are now structurally compared if byte-for-byte comparison fails
- **changed** — Orphaned unencrypted vaults are now deleted once keychain access is gained
- **fixed** — Fixed a crash on macOS 27
- **fixed** — Fixed an issue with sync_test that doesn't panic and proper event resolution for SyncFinished event in UserRefreshEvent test
- **fixed** — Fixed wait time for TestBridge_SendInvite test
- **fixed** — Fixed an issue where in-flight cancelled request caused a connection-down status
- **fixed** — Fixed an issue where cpu and memory were unbounded in the rfcparser for Gluon

###### Added
* BRIDGE-576: Added logging to current auth session ID.
* BRIDGE-568: Added meta+W shortcut to close the main window.
* BRIDGE-571: Added a marker for the initial eventID during sync.

###### Changed
* BRIDGE-601: Calendar Event doesn't mutate a copy in go-proton-api.
* BRIDGE-602: Remove unused worker-pool implementation in go-proton-api.
* BRIDGE-603: Removed unused futures implementation in go-proton-api.
* BRIDGE-611: HV requests resolve to correct API environment.
* BRIDGE-587: Vulnerabilities Patched July 2026.
* BRIDGE-581: Replaced FILENAME_VARIABLE with OUTPUT_SCRIPT for bridge-gui.
* BRIDGE-574: Go Toolchain bump to 1.26.4.
* BRIDGE-577: Replaced gomock with uber-go/mock.
* BRIDGE-555: Go Toolchain bump to 1.26.3 & Vulnerabilities patched for June 2026.
* BRIDGE-582: Empty address list now returns nil instead of empty list per RFC 3501.
* BRIDGE-610: Literals are now structurally compared if byte-for-byte comparison fails.
* BRIDGE-558: Orphaned unencrypted vaults are now deleted once keychain access is gained.

###### Fixed
* BRIDGE-612: Fixed a crash on macOS 27.
* BRIDGE-608: Fixed an issue with sync_test that doesn't panic. Proper event resolution for SyncFinished event in UserRefreshEvent test.
* BRIDGE-608: Fixed wait time for TestBridge_SendInvite test.
* BRIDGE-561: Fixed an issue where in-flight cancelled request caused a connection-down status.
* BRIDGE-563: Fixed an issue where cpu and memory where unbounded in the rfcparser for Gluon.