Starting in Db2 Version 220.127.116.11, a new feature called 'DB2_AVOID_LOCK_ESCALATION' provides control over lock escalation behaviour. The feature is configured through a dynamic (no instance recycling needed) registry variable:
While system failures seldom happen, most customers expect crash recovery to complete quickly. Our development team decided upon a solution which promised increased availability, without risking the distinguished resilience that Db2 has achieved over the decades.
This article by Michael Roecken and David Sciaraffa does a deep dive into the recovery and availability enhancements in Db2 V18.104.22.168
Db2 V11.1 was released in June 2016, with many new features which have already been covered by IDUG in a number of articles and recordings. This article looks at what has been added to Db2 since General Availability