OpenProject Integration 3.3.0 Adds Nextcloud 35 Support

An updated version of the OpenProject integration app for Nextcloud adds support for Nextcloud 35 and addresses issues affecting authentication and system upgrades. OpenProject announced version 3.3.0 on 29 October 2026, confirming compatibility changes and the end of parallel releases for the app's older 2.x series.

The release addresses changes introduced in Nextcloud 35 to the way OAuth2 clients are represented internally. Nextcloud has moved to a new attribute-based entity for OAuth2 clients, requiring adjustments to the integration app. Version 3.3.0 accommodates this implementation while retaining support for the previous OAuth2 system used by older supported Nextcloud versions. The changes are intended to allow organisations to upgrade their Nextcloud installations without disrupting their existing OpenProject integration.

According to OpenProject, the updated authentication integration was tested with Nextcloud 34 and Nextcloud 35. Testing included establishing the integration, creating OAuth2 clients and resetting existing clients. These checks covered both new configurations and operations involving previously configured connections.

The release also corrects an issue affecting administrator settings in Nextcloud 35. Previously, database schema checks and upgrade operations could reset existing configuration values, including the URL of the connected OpenProject instance. Version 3.3.0 addresses this behaviour by preserving those settings when Nextcloud checks the database schema or performs migrations. The fix reduces the likelihood of administrators needing to restore integration settings following these operations.

Another change concerns the app's release maintenance. OpenProject previously maintained separate 2.x and 3.x versions to support different Nextcloud releases, with versions 2.12.0 and 3.2.0 among the most recent parallel releases. With version 3.3.0, the project has discontinued the separate 2.x release track. Future compatibility updates, improvements and fixes will be delivered exclusively through the 3.x series.

OpenProject recommends that users still running a 2.x version move to a compatible 3.x release when upgrading Nextcloud. Administrators are also advised to verify supported Nextcloud versions before updating. Version 3.3.0 is available through the Nextcloud App Store, with additional technical information provided in the GitHub release notes.