Usually we prefer to have updates/upgrades for free, but due to the cost of licensing the Kontakt Player, we opted for the $20 USD upgrade fee. This price can, of course, be discounted further by redeeming your Orange Slices.
If you bought either of the libraries from October 1st onward, we've upgraded you free of charge.
Regarding what's new in the upgrades, we took the opportunity to make some improvements and additions:
Full Native Kontrol Standard integration Native Instruments' Komplete Kontrol keyboards and Maschine now offer integration with virtual instruments. That way the Evolution guitar library's effects and settings are readily available directly from these excellent hardware interfaces. The upgrade also incorporates the Komplete Kontrol's Light Guide technology to display the different key ranges and keyswitches.
Snapshot-based factory presets The snapshot system in Kontakt 5 is designed specifically for handling presets, so we've upgraded the Evolution guitar engine to use those. It integrates really nicely with the Komplete software, Komplete Kontrol keyboards, and Maschine, too.
Oh, and while we were at it, we added a bunch of new factory presets.
Other miscellaneous improvements The upgrade includes the very latest version of the Evolution guitar engine, which includes new reverb pedals, improved round-robin cycling for better multi-tracking, as well as a few minor bug fixes.
The improvements made in these two libraries will also be released as updates for Evolution Banshee and Evolution Stratosphere, so stay tuned for those.