[Elecraft] K2 KDSP2 - firmware versions and keyboard shortcuts

[Hank]

Hey folks...
As I use my KDSP2 more and more I'm learning but have more questions.  I've noticed in the documentation that shortcuts exist - namely AFIL+SPLIT shortcut to the autonotch and AFIL+REC shortcut to denoiser.  However when pressing those sequences I get Not Installed message.  If I read the KDSP2 manual errata, I need firmware 3.16 or better (I have 3.18) and CTL 3.10 (I have 3.00).

Am I reading that correctly?

How do I upgrade the controller version to 3.10?  Download or a new chip?

Thanks in advance for your help!

Hank
K4HYJ
K2/100 #4071