Bill Allombert on Wed, 03 Oct 2012 16:17:48 +0200

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pari-2.5.3(STABLE) released

Dear PARI lovers,

I would like to announce the release of pari-2.5.3 (STABLE). The sources
and a basic Windows binary are available from

This is a BUGFIX release for the stable branch. It fixes all significant problems
that could be fixed in a simple, harmless way. However we strongly encourage
you to upgrade since it fixes a number of cases where PARI was returning an
incorrect result.

Thanks to all those who reported problems, on the mailing lists or through
our Bug Tracking System. ( See ), or
who tested the prelease.

Have fun,

  Bill and Karim

P.S: The Changelog:

[last column crossreferences current development release 2.6.0]
Done for version 2.5.3 (released 03/10/2012):

    1- padicappr(x^2+1+O(3), -1+O(5^10)) --> no error                      [F34]
    2- sqrtn(1+O(5),5) -> error, ispower(1+O(5),5) -> error [#1261]        [F65]
PB  3- printf("%.6f", 5E-5) -> SEGV [#1328]                                [F83]
BA  4- diffop(Mod(y,x^2-y),[y],[1]) -> wrong result                        [F84]
BA  5- calling a GP function with a lot of omitted arguments could crashes [F85]
GH  6- missing solutions in thue() [#951]                                  [F86]
    7- t_RFRAC == t_RFRAC could return a wrong result [#1339]              [F87]
    8- obscure bug in polroots() (sage #13314)                             [F88]
BA  9- printf() did not flush output                                       [F90]
   10- polrootsff(2*x+1,2,y) -> SEGV [#1350]                               [F93]
BA 11- elltors() was using an insufficient precision  [#1326]
   12- resultant(x,x,y) -> 0 and related problems                          [F94]
   13- thue((x^4+1)^2, 4) -> no solution                                   [F95]
BA 14- idealramgroups() and idealfrobenius() did not accept a bnf          [F96]