[tpm] Source of when Perl features added

[Liam R E Quin]

On Mon, 2007-10-22 at 16:33 -0400, Indy Singh wrote:

> Some of the specific things I am interested in are:
> What release introduced 'use warnings'?
uncertain -- perl -w was much older and is safe, e.g. in the #! line

> What release introduced the 'our' variable declaration?
Perl 5 but not sure which release.
> What release allowed calls to undeclared user subs without a leading &.
Perl 5, some time before 1998

But I don't have a general algorithm for answering the question, sorry.

-- 
Liam Quin - XML Activity Lead, W3C, http://www.w3.org/People/Quin/
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