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Organizational Identity Pooling was deprecated in Registry v3.1.0, and since then certain functions were not available to pooled deployments. The capability is entirely removed as of Registry v5.0.0. Deployments still using Org Identity Pooling should "unpool" their identities prior to Transmogrification. There is no tooling available for unpooling at the moment. Deployments using a pooled configuration should contact the developers for assistance.
Parallel Job Runners
Registry Job Command now supports running in parallel, and from multiple nodes. The command syntax has changed slightly, and cron jobs may need to be updated.
REST API
Registry v5 introduces API v2. Although similar, it is not the same as the previous v1, and so existing code may not work without modification. Of note:
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