So I've ready the document
many times in the past, but it still doesn't completely answer the IOS nameing convention. The document only covers (for a 3825) the 12.4 and the 12.4T realeases. What does the YB, XC, MR and others mean? For example, I'm looking to load an IOS that supports the SSHv2 Enhancements. Both the 12.4(22)YB4 and 12.4(22)T3 support it. When I compare their features in Software Advisor, it shows no difference between them. Why would I choose one over the other?