Release Lifecycle¶
What is a Release Lifecycle?¶
During each monthly release, Mattermost backports high severity or high impact security fixes to the previous three monthly releases. Extended Support Releases receive backports for security fixes and major bug fixes for the length of their life cycle. Once a release life cycle has ended, it will no longer receive the security or major bug backports. We follow the same release cycle pattern for all upcoming releases.
Important
Support for server Extended Support Release (ESR) 5.19 is coming to the end of its lifecycle on October 15th, 2020. Upgrading to server v5.25 or later is highly recommended.
| Version | Release Type | Lifecyle Start Date | Lifecycle End Date | Extended Support Release |
|---|---|---|---|---|
| 5.30 | Feature | 2020-12-16 | 2021-03-15 | |
| 5.29 | Quality | 2020-11-16 | 2021-02-15 | |
| 5.28 | Feature | 2020-10-16 | 2021-01-15 | |
| 5.27 | Quality | 2020-09-16 | 2020-12-15 | |
| 5.26 | Feature | 2020-08-16 | 2020-11-15 | |
| 5.25 | Quality | 2020-07-16 | 2021-04-15 | Yes |
| 5.24 | Feature | 2020-06-16 | 2020-09-15 | |
| 5.23 | Quality | 2020-05-16 | 2020-08-15 | |
| 5.22 | Feature | 2020-04-16 | 2020-07-15 | |
| 5.21 | Quality | 2020-03-16 | 2020-06-15 | |
| 5.20 | Feature | 2020-02-16 | 2020-05-15 | |
| 5.19 | Quality | 2020-01-16 | 2020-09-15 | Yes |
| 5.18 | Feature | 2019-12-16 | 2020-03-15 | |
| 5.17 | Quality | 2019-11-16 | 2020-02-15 | |
| 5.16 | Feature | 2019-10-16 | 2020-01-15 | |
| 5.15 | Quality | 2019-09-16 | 2019-12-15 | |
| 5.14 | Feature | 2019-08-16 | 2019-11-15 | |
| 5.13 | Quality | 2019-07-16 | 2019-09-15 | |
| 5.12 | Feature | 2019-06-16 | 2019-08-15 | |
| 5.11 | Quality | 2019-05-16 | 2019-07-15 | |
| 5.10 | Feature | 2019-04-16 | 2019-06-15 | |
| 5.9 | Quality | 2019-03-16 | 2020-04-15 | Yes |
| 5.8 | Feature | 2019-02-16 | 2019-04-15 | |
| 5.7 | Quality | 2019-01-16 | 2019-03-15 | |
| 5.6 | Feature | 2018-12-16 | 2019-02-15 | |
| 5.5 | Quality | 2018-11-16 | 2019-01-15 | |
| 5.4 | Feature | 2018-10-16 | 2018-12-15 | |
| 5.3 | Feature | 2018-09-16 | 2018-11-15 | |
| 5.2 | Feature | 2018-08-16 | 2018-10-15 | |
| 5.1 | Feature | 2018-07-16 | 2018-09-15 | |
| 5.0 | Feature | 2018-06-16 | 2018-08-15 | |
| 4.10 | Feature | 2018-05-16 | 2019-07-15 | Yes |
| 4.9 | Feature | 2018-04-16 | 2018-06-15 | |
| 4.8 | Feature | 2018-03-16 | 2018-05-15 | |
| 4.7 | Feature | 2018-02-16 | 2018-04-15 | |
| 4.6 | Feature | 2018-01-16 | 2018-03-15 | |
| 4.5 | Feature | 2017-12-16 | 2018-02-15 | |
| 4.4 | Feature | 2017-11-16 | 2018-01-15 | |
| 4.3 | Feature | 2017-10-16 | 2017-12-15 | |
| 4.2 | Feature | 2017-09-16 | 2017-11-15 | |
| 4.1 | Feature | 2017-08-16 | 2017-10-15 | |
| 4.0 | Feature | 2017-07-16 | 2017-09-15 |
