What's Changed

• chore!: clean up old migrations by @secana in https://github.com/kellnr/kellnr/pull/989
• feat!: use kellnr cli and remove default directories by @secana in https://github.com/kellnr/kellnr/pull/990
• feat: support to build kellnr on Windows by @secana in https://github.com/kellnr/kellnr/pull/969
• ci: new build targets by @secana in https://github.com/kellnr/kellnr/pull/997
• feat: add openconnectid/oauth2 authentication by @secana in https://github.com/kellnr/kellnr/pull/999
• refactor: improve db layout by @secana in https://github.com/kellnr/kellnr/pull/1000
• feat: add SBOM for releases by @secana in https://github.com/kellnr/kellnr/pull/1001

Full Changelog: https://github.com/kellnr/kellnr/compare/v5.14.1...v6.0.0-rc.2