We're considering moving our FortiAuthenticator up to 6.0.1.
Would love to hear anybody's experience with it before we upgrade.
Updated ours to 6.0.2 from 5.3 recently, all seems to be working smoothly.
Our push to update was performed to attempt to solve some issues with O365 / Azure AD integration.
vulnerabilities resolved in 6.0.2 are a good reason to upgrade. In any case read release notes for known issues.