Otto v3.5.6 Relased
Otto 3.5.6 was released to address a compatibility issues with Claris FileMaker Server 2023. This download is available in Version History
Migrator.fmp12 v3.0.2 Released
A new Migrator.fmp12 file is not required for use with FileMaker 2023 or FileMaker Server 2023. You will get a warning when you connect to a Claris FileMaker Server running 2023. You can safely dismiss the warning. It just says that Migrator hasn't been tested with this version of FileMaker Server.
The new version, v3.0.2, is available for download.