John Cremona on Mon, 02 Sep 2013 10:43:37 +0200

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Re: pari version and dates

Thanks for the explanations, Bill!


On 22 August 2013 13:57, John Cremona <> wrote:
> Apologies for a question which is probably very silly.
> One of my computers has version 2.5.4 in /usr/bin, specifically
> /usr/bin/gp-2.5,  which has a datestamp of 17 Nov 2011, and when it
> runs the banner says that it was compiled on that day (presumably by
> me as I administer this machine) and the banner ends with Copyright
> (C) 2000-2011 The PARI Group.  The version number is 2.5.4 (released).
> But on it lists 2.5.4 as
> the most recent released version, dated May 2013.
> So how come I made a released version 18 months before the release date?
> More importantly, should I replace that 2011 version on the system
> with a freshly compiled 2.5.4 or would it be identical?  I just built
> it and the banner is very similar except that the copyright now ends
> 2000-2013.
> I do not usually install development versions system-wide, but would
> do if I receved an authoritative recommendation!
> Bonnes vacances a tous -- moi, je vais en Bretagne demain!
> John