Quoting their description:

An open-source keyboard for Android which respects your privacy. Currently in early-beta.

Excerpts from the Changelog:

What’s Changed

• Add support for reproducible builds by @patrickgold in https://github.com/florisboard/florisboard/pull/2719
  • Many thanks to Izzy for his assistance with this!
• Add time based theme switching by @lm41 in https://github.com/florisboard/florisboard/pull/2977
• Add support for physical keyboard settings by @lm41 in https://github.com/florisboard/florisboard/pull/2981
• Fix files with spaces causing UI issues by @patrickgold in https://github.com/florisboard/florisboard/pull/2982
• Remove checks for api 26 by @lm41 in https://github.com/florisboard/florisboard/pull/2972
• Update ROADMAP.md by @lm41 in https://github.com/florisboard/florisboard/pull/2980
• Update README.md by @patrickgold in https://github.com/florisboard/florisboard/pull/2984

This release also marks an important developer milestone, as its release commit is the 2500th commit on the main brach :tada:

Full Changelog: https://github.com/florisboard/florisboard/compare/v0.5.0-beta01...v0.5.0-beta02