OpenID Connect Support
While Kentico does support OpenID, "OpenID Connect" performs many of the same tasks but does so in a way that is standardized and API-friendly.
We have centralized authentication across numerous sites (both internal and external) using OpenID Connect and our Kentico site is the one lone holdout due to lack of support.
Tobias Beckendorff commented
Would be great to have OpenID Connect Support for Amazon Cognito
This is an excellent ideal. OpenID Connect is more secure then SAML, which is based on XML. XML parsers have had many unexpected glitches over the years. SAML relies on XML parsing and canonicalization. It's clear that the market is moving toward OpenID Connect (for example, Google, Microsoft Azure AD, Okta all support OpenID Connect).