Legacy definition (Score 1)

We should strive for a decent definition of legacy.

What's not a fad is now legacy. I work on Ruby-on-Rails r3 and the programmers already consider it legacy, since r4 has been out a while. Legacy should mean something similar to all: maybe not easily runnable on today's hardware (needs special emulators, ...), not having security updates, ... e.g. Cobol or ...