Certificate Change in IDP

[Peter Schober]

* Santu Ghosh <mon.snahasish at gmail.com> [2018-11-20 08:59]:
> One of my IDP changed their signed certificate.
> Should we reload IDP metadata in SP again ?

Depends on how they changed the certificate. E.g. if they wrapped the
same key in a new certificate there's nothing to do for you.
If OTOH logins are currently broken due to signature validation
failing on your end, and you want them to work again, the then yes, SP
will need correct/current metadata.

-peter