MySQL extractor errors

We are investigating MySQL extractor errors for some configurations ending with error message: 

The "incrementalFetchingColumn" must be configured, if incremental fetching is enabled.

The issue is probably caused by new extractor release on Jun 08 05:55 UTC, we are doing rollback.

UPDATE 07:07 UTC: We have rollbacked the previous version. All affected configurations should start working in five minutes.

UPDATE 07:18 UTC: All affected configurations are working again, last error at Jun 08 07:07:45