https://support.claris.com/s/article/FileMaker-Server-Version-Comparison?language=en_US

FileMaker 19 version comparison

https://help.claris.com/en/pro-help/content/new-features.html

FileMaker Pro System Requirements and Compatibility Comparison

https://support.claris.com/s/article/FileMaker-Pro-operating-system-requirements-all-versions-1503692917754?language=en_US

FileMaker Server to FileMaker Cloud solutions comparison

https://support.claris.com/s/article/Comparison-of-FileMaker-Server-and-FileMaker-Cloud?language=en_US

FileMaker Server to FileMaker Cloud technical comparison

https://support.claris.com/s/article/Claris-FileMaker-19-Technical-Specifications?language=en_US

ODBC data sources/drivers are supported with External SQL Data Sources comparison

https://support.claris.com/s/article/Which-ODBC-data-sources-drivers-are-supported-with-External-SQL-Data-Sources-1503692938173?language=en_US