The MySQL Server from Oracle comes in a two different flavours: Community Edition and Enterprise Edition. The first one is under the GPLv2 license and the later is under the GPLv2 or Commercial license. The Enterprise Edition was always available from https://enterprise.mysql.com (which now has an expired SSL certificate) under the GPLv2 license. This download page was restricted to paying customers. Since the Enterprise downloads were moved to https://edelivery.oracle.com the downloads are available for everyone (as long as it's not restricted by export regulations and accept the trial license agreement). The license is now 'Commercial'. The download be named V24071-01.zip or something like that, which is annoying. The latest version for the Enterprise release on edelivery is 5.5.8 while the latest Community version is 5.5.11. Previously there were two enterprise releases: Advanced (With partitioning) and Professional (Without partitioning). If you use https://support.o...