DBISAM 4.48 is now available for download. If you're an existing customer, then you should be receiving an email shortly with download instructions.
The new features are below:
New 4.48 FeaturesThe following are the new features in 4.48:
There are new TDBISAMEngineRecordLockTrigger and RecordUnlockTrigger events that are fired for every record lock or unlock operation. This is useful for tracking record locks or diagnosing locking issues.