FusionAuth has released Version 1.6 with several new features and minor fixes. The release includes support for SAML v2, which was a highly requested feature, although the team had reservations about its implementation due to security concerns. Other notable additions include lambdas, user-defined JavaScript functions that can be used to customize claims in JWT or SAML responses, an event log designed to assist developers with debugging integrations, and the ability to duplicate existing email templates. The release also includes a range of bug fixes and updates.