- Support dead brains in WorkflowSecurityUpdater. [njohner]
3.3.0
------------------
- Allow choosing a specific instance to run upgrade commands. [njohner]
3.2.0
------------------
- Log memory usage during upgrade steps. [njohner] - Write upgrade step durations to a file. [njohner] - Sweep cache during upgrade if memory is critical. [njohner]
3.1.1
------------------
- Add method to iterate over brains in upgrade step. [njohner]
3.1.0
------------------
- Add intermediate commit option to commit the transaction after each installed upgrade. [deiferni]