| Version | Release | Key Improvements | |---------|---------|------------------| | 1.5 | 2011 | Set List improvements, new CX-3 tones | | 1.6 | 2012 | Improved SSD compatibility (for user upgrades) | | 2.0 | 2012 | Added 2 GB sample RAM support, new SGX-1 piano (German Grand) | | 2.1 | 2013 | Bug fixes, improved MIDI sync | | 2.2 | 2014 | Last update for Gen 1 before Kronos X hardware |