It looks like the announcement for general availability for vSphere 6.5 was published a bit earlier than expected. However, it is true that vSphere 6.5 has GA'ed and you can now download it! Below is a nice aggregated list of all the relevant release notes, documentation and download links related to the GA of vSphere 6.5.

I have also created a short URL which you can access this exact same page using vmwa.re/vsphere65

Enjoy and happy vSphere'ing 6.5 😀

Release Notes:

Downloads:

Documentation: