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Release 12.1.1

This release contains a variety of fixes from 12.1-1. For information about new features in major release 12, see Release 12.1.0.

Migration to Version 12.1.1

A dump/restore is not required for those running 12.1.X.


  • Support ALTER UNDO command.
  • Remove the storage parameter initialpages of undo segment.
  • Chinese text search parser can identify and filter stop words.
  • Fix possible crash when PL/Scheme converts SQL null values and Scheme null values.
  • The name of the wait event of the SpinLock type is changed to the camel-backed name.