Compatibility of shibboleth sp and idp versions

[Peter Schober]

* luke <luke.bike at gmail.com> [2020-06-08 11:46]:
> We would like to know which versions of Shibboleth Sp are compatible
> with this version of idp

Another way to (not) answer this question is by pointing out the
importance of running supported versions of the software. It is
security software after all.
That already tells you what versions you should be running, making the
question about compatibility a moot point.

There's a minor exception to what "supported" could mean in the case
of the Debian packages for the SP, which are supported (to some
degree) by the Debian packaging and security teams in cooperation with
the Shibboleth developers and so might differ slightly in their
"supported" versions from what the Shibboleth project identifies as
supported.

None of that matters one bit, of course, since both the IDP and the SP
support SAML (current and previous version) just fine, assuming that's
the protocol you're intended of using between the IDP and SP.
(I'm not aware of any other different protocols they share: The IDP
supports CAS but the SP does not; the SP supports WS-Fed but the IDP
does not. The IDP supports OIDC with an extension, the SP does not.)

-peter