The Patch function allows the administrator to deploy a patch file upgrade on all agents under the same group policy. The patching process can be conducted remotely and automatically using policy synchronization. Only one patch file (Agent version) is allowed to be upgraded each time under each group policy.
A patch is generally used to fix or enhance the current version. If you accidentally patch an older version, the patch deployment should not work and the agent status will keep un-synced with the StellarOne console. Meanwhile, other policy settings can't be deployed, either. After 20 minutes the agents will resynchronize with StellarOne; until then can the policy settings be applied to the agent.