V2.6.0 to V2.7.0
-Now supports the PSR-SX600.
-Incremental installation of Expansion Packs using a USB flash drive called as "Quick Installation" is now available on the PSR--SX900, the PSR-SX700 and the PSR-SX600 with the latest firmware.
-Yamaha Expansion Manager no longer supports Windows 7.
-Now supports only 64-bit Windows.
-Solved some other minor problems.