I'm trying to put together a table of which spatial functions are supported by MySQL and MariaDB at which version numbers. 

Something like https://dev.mysql.com/doc/refman/5.5/en/spatial-function-reference.html for different versions would be awesome, but I can't find it. 

Checking wiki history isn't very helpful because it just shows a date that it was changed, with no mention of why. 

Is there a better approach I could be taking? 

I'm making the table for WordPress plugin developers, who have to deal with sometimes old versions of MySQL and MariaDB on their hosts without control over the upgrade schedule. 

Once I have the table compiled I'd love to share it back on the MariaDB KB for future people looking for the same thing. 

Many thanks,
Michael Moore