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# Bootstrap Release Working Group
## Release schedule
| Release | Status | Initial Release | Active LTS Start | Maintenance LTS Start | End-of-life |
| :-----: | :-------------: | :-------------: | :--------------: | :-------------------: | :---------: |
| [2.x][] | **End-of-life** | 2013-07-18 | - | - | 2013-08-19 |
| [3.x][] | **End-of-life** | 2013-08-19 | 2014-11-01 | 2016-09-05 | 2019-07-24 |
| [4.x][] | **Active LTS** | 2018-01-18 | 2019-11-26 | 2020-05-26 | 2020-11-26 |
| 5.x | **TBD** | TBD | TBD | TBD | TBD |
**Warning:** Dates may vary widely. We are actively working on strengthening timeline assurances.
![LTS schedule](schedule.svg)
[2.x]: https://getbootstrap.com/2.3.2/getting-started.html#download-bootstrap
[3.x]: https://getbootstrap.com/docs/3.4/getting-started/#download
[4.x]: https://getbootstrap.com/docs/4.5/getting-started/download/
## Release plan
New releases of Bootstrap are made from the `main` branch to the _Active_ major version. At times to be determined by the release working group, major versions will be frozen and transitioned to _Long Term Support_ (LTS). A long term support branch will be forked from `main`, making way for semver-major changes to be made on `main` and a new _Active_ major version to be prepared.
A version in _Long Term Support_ should not have new features landed without a compelling reason. It may continue to receive:
* Bug fixes
* Security updates
* Documentation updates
After a determined period of time, versions in Long Term Support will be deep-frozen and transition to _Maintenance_.
Versions in _Maintenance_ should not have any changes landed, except for:
* **Critical** bug fixes
* **Critical** security updates
* **Important** documentation updates
Unless a change is urgent, _Maintenance_ releases are likely to be made with minimal frequency.
## Upcoming release schedule
A rough schedule of releases has been included here for planning purposes.
- **Bootstrap 4:**
- v4.5.3 in September 2020 (bug fixes and docs)
- v4.6.0 in October 2020 (feature alignment with v5)
- v4.6.x in November 2020 (bug fixes and docs)
- **Bootstrap 5:**
- v5.0.0-alpha2 in September 2020 (delayed due to team vacations)
- v5.0.0-alpha3 in October 2020 (additional new features and breaking changes)
- v5.0.0-beta1 in October 2020 (final instance of breaking changes)
- v5.0.0-beta2 in November 2020 (beta bug fixes, possibly a 3rd beta)
- v5.0.0 in December 2020 (stable release)
## LTS team members
### Releasers
* [@mdo](https://github.com/mdo) – Mark Otto
* [@xhmikosr](https://github.com/xhmikosr)
### Security
* [@bardiharborow](https://github.com/bardiharborow) – Bardi Harborow
* [@Johann-S](https://github.com/Johann-S) – Johann Servoire
* [@xhmikosr](https://github.com/xhmikosr)
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