Roundcube 1.7 Compatibility Release
May 21, 2026
All Roundcube Plus plugins and skins have been updated for compatibility with Roundcube 1.7. The new builds are available now in the customer area.
This release follows the Roundcube 1.7.0 release on May 10, and brings every plugin and skin in our catalog onto the new platform version.
Compatibility
Every plugin and skin has been tested against Roundcube 1.7 and updated where required. Customers running 1.7 — or planning to upgrade — should install the latest builds to ensure continued functionality.
These builds also include the security fixes and dependency updates from our recent major release, so installations remaining on 1.6 will benefit from upgrading as well.
Supported Roundcube Versions
With this release, we are aligning our supported version matrix:
- Roundcube 1.7 — supported
- Roundcube 1.6 — supported
- Roundcube 1.5 — no longer supported. This matches the Roundcube project, which ended 1.5.x maintenance with the 1.7.0 release. Our plugins and skins may continue to function on 1.5, but we no longer test against it or provide technical support for issues specific to that version.
Customers still on Roundcube 1.5 are encouraged to plan an upgrade to a supported version.
Availability
The updated plugins and skins are available immediately for download in the customer area. Full per-component changelogs are linked from each plugin and skin page.
For questions or upgrade assistance, contact support.
