This release adds the following new features:
- [Nested tasks](https://github.com/wekan/wekan/pull/1723);
- [Calendar improvements](https://github.com/wekan/wekan/pull/1752);
- [SSO CAS](https://github.com/wekan/wekan/pull/1742).
and fixes the following bugs:
- [Fix warning about missing space in jade file](https://github.com/wekan/wekan/commit/067aef9de948ef0cb6037d52602100b00d214706);
- Revert [Fix vertical align of user avatar initials](https://github.com/wekan/wekan/pull/1714), so that [initials are again
visible](https://github.com/wekan/wekan/commit/122a61b3333fb77c0f08bbdc6fe0d3c2f6db97df);
- Fix lint warning: [EditCardDate is assigned a value but never used
no-unused-vars](https://github.com/wekan/wekan/commit/dd324aa581bed7ea31f20968c6b596f373e7054f);
- Fix [Minimize board sidebar actually just moves it over](https://github.com/wekan/wekan/issues/1589).
Thanks to GitHub users dagomar, ppoulard, pravdomil, TNick and xet7 for their contributions.