The GTK 4.0 toolkit was released in December 2020, but much software continues to depend on the older version, GTK3. For this reason, the GTK3 toolkit has continued to be maintained.

GTK3 Transitions to Annual Releases

With the release of GTK 3.24.52, the update frequency will shift to one new release per year. This change reflects the maturity of the toolkit and the need to focus resources on the development of GTK4, while continuing to support the existing user base.

This approach allows developers to have a predictable and stable update cycle for GTK3, while minimizing the impact on existing applications. Maintenance will continue to focus on bug fixes and security issue resolution.