I think I can remember the announcement that the C10 was the first device that could no longer coop with the regular system updates and was depreciated. if I'm right that was somewhere around the introduction of AsyncOS 6.x.x.
If you want to know for sure, just raise a support call. (And publish the answer you receive from them on the forum) :-)
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...