Free version of DB2 by Roberto Zicari · Published November 10, 2013 · Updated November 10, 2013 DB2 Express-C: Get Started LINK(IBM) Download DB2 Express-C LINK(IBM)
MariaDB 10.4.12, 10.3.22, and others now available February 5, 2020 by Roberto Zicari · Published February 5, 2020
Download kdb+ (32-bit version) for free February 19, 2016 by Roberto Zicari · Published February 19, 2016
VoltDB new release January 22, 2013 by Roberto Zicari · Published January 22, 2013 · Last modified June 6, 2014