Version: 2023.2
  • C#


Suggest a change


Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.


Submission failed

For some reason your suggested change could not be submitted. Please <a>try again</a> in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.



Switch to Manual


value A PackageRegistrationEventArgs structure describing the modifications to the registered packages list.


Event raised before applying changes to the registered packages list.

Occurs before the asset database begins refreshing. Packages about to be modified or removed are still present and functional, because the package registration process has not yet begun.
Note: There is no guarantee that the AssetPostprocessor pipeline will finish by the time this event is raised, so don't rely on the execution order for pre-processing events.