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As of Registry v3.2.0, the "Enroll" link to view available Enrollment Flows (and the entire "People" menu) is no longer visible to CO People who are not Administrators. Links to specific Enrollment Flows can be made available via the "My Identity" menu by setting the Enable My Identity Shortcut in the Enrollment Flow's configuration.
Petition Specific Redirect Target Base64 Encoding
Petition Specific Redirect Targets use Base64 encoding to avoid URL parsing errors. Registry v3.2.0 supports character substitution to avoid conflicting characters that may result from the Base64 operation, and any code that generates a return parameter for initiating an Enrollment Flow should be updated. See the documentation for more information.