Major Changes

• [DevOps] Upgrade to lightning 2.0 by @ourownstory in #1514

New Features

• [Minor] add subdivisions to holidays by @MaiBe-ctrl in #1584
• [Minor] Support io.bytes output by @MaiBe-ctrl in #1583

Fixes

• [Fix] fix bug #1580 by @MaiBe-ctrl in #1582
• [Fix] fix future regressor by @MaiBe-ctrl in #1585
• [Fix| Fix neural nets regressor shape by @MaiBe-ctrl in https://github.com//pull/1589
• [Fix] Raise Error if ar_reg is set an dn_lags is null by @MaiBe-ctrl in #1588
• [Fix] Fix frequency inference if NaT by @MaiBe-ctrl in #1590
• [Docs] fix typo in get_latest_forecast example by @SimonWittner in #1551

Other Changes

• [DevOps] Cleaning CI workflow files and dependencies by @ourownstory in #1547
• [DevOps] update poetry by @ourownstory in #1587
• [DevOps] Run black by @ourownstory in #1593
• [DevOps] bump version to 0.9.0 by @ourownstory in #1594

New Contributors

• @MaiBe-ctrl made their first contribution in #1582

Full Changelog: 0.8.0...0.9.0