[tex-live] since when does platex format incorporate e-TeXextensions?

[Nelson H. F. Beebe]

>> In recent versions of TEX Live and W32TEX, the default engine
>> of pLATEX changed from original pTEX to e-pTEX (pTEX with e-pTEX extension),
>
> I would like to know since when since is the case, and
> have not found yet the information in this document.

The 2010 TeX Live release of platex reports:

    pTeX 3.1415926-p3.1.11 (utf8.euc) (TeX Live 2010)
    kpathsea version 6.0.0
    ptetex 1.1.1

The 2011 release says

    e-pTeX 3.1415926-p3.2-110415-2.3 (utf8.euc) (TeX Live 2011)
    kpathsea version 6.0.1
    ptexenc 1.2.0

The 2018 version says

    e-pTeX 3.14159265-p3.8.0-180226-2.6 (utf8.euc) (TeX Live 2018)
    kpathsea version 6.3.0
    ptexenc version 1.3.6

Thus, the change from pTeX to e-pTeX appeared with TeX Live 2011.


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