DB2 Express-C 10.5 is now available for download. Express-C is the free edition of the DB2 database.
Unlike the competitor express offerings, DB2 Express-C does not impose any limit on the size of database. The new DB2 Express-C 10.5 release also relaxes its memory restriction by 400%. It will now use up to 16GB of memory.
DB2 Express-C can handle database of any size, it can be used in production, and it can be redistributed with your applications.