To learn what has changed in Orchestrator v2021.4.x, check out the release notes:
🛈 UiPath periodically releases patches that include fixes and improvements when there is a business need. The documentation for a specific version reflects the latest patch on that version. Product changes in-between patches can be checked in the release notes. For example, in March 2021, the documentation for 2020.4 Orchestrator illustrates its latest patch, namely 2020.4.5.
Updated about a month ago