Where can I find legacy API documentation?

Questions & Answers
1

I know that the documentation for the current version of Unity is available at:

https://docs.unity3d.com/Documentation/ScriptReference/

Where can I find the documentation for previous versions?

2

I don’t know if they have all of it, but hope this helps.

https://web.archive.org/web/20120801000000*/https://docs.unity3d.com/Documentation/ScriptReference/