pgsql client/server compatibility matrix?

Can someone help find (or create) a client/server compatibility
matrix that shows which client versions are compatible with
which server versions?  For example,

server:  7.1.2  7.2.1  7.2.2  7.2.3 ...

client
======
7.1.2     Yes    No      No    No   ...
7.2.1     No
7.2.2     No
7.2.3     No
7.3       ...
7.3.1
...

I'd be happy to contribute it to the docs.

Ed