operators available in bash versions

[Gerard]

I apologize for asking what is probably a dumb question, but where can
I find a definitive listing of what features are available in each
version of Bash.

For example, I only have access to Bash-4 on my system. I need to know
if " $(< " also works on Bash < 4. I also have a few questions
regarding array handling.

I am running FreeBSD-7.2 and installed Bash via ports.

-- 
Gerard
gerard@seibercom.net

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