Please test pari-2.17.4 prerelease 1

[Bill Allombert <Bill.Allombert@math.u-bordeaux.fr>]

Dear PARI developers,

We have made available a prerelease of PARI 2.17.4 (stable).

Please test to make sure there are no regressions!

The expected release date is 29/06/2026, but it might be delayed because
I am missing MacOS binaries for Arm-based Mac (M1, M2, M3, etc.)

Please test the prerelease tarball:
<https://pari.math.u-bordeaux.fr/pub/pari/snapshots/pari-2.17.4-pre1.tar.gz>

The digital signature is 
<https://pari.math.u-bordeaux.fr/pub/pari/snapshots/pari-2.17.4-pre1.tar.gz.asc>

Please test the 64bit Windows installer:
<https://pari.math.u-bordeaux.fr/pub/pari/windows/snapshots/Pari64-2-17-4-pre1.exe>

I have also built the 32bit Windows installer:
<https://pari.math.u-bordeaux.fr/pub/pari/windows/snapshots/Pari32-2-17-4-pre1.exe>

and the following standalone Windows binaries:

32bit 
<https://pari.math.u-bordeaux.fr/pub/pari/windows/snapshots/gp32-2-17-4-pre1.exe>
<https://pari.math.u-bordeaux.fr/pub/pari/windows/snapshots/gp32-readline-2-17-4-pre1.exe>

64bit
<https://pari.math.u-bordeaux.fr/pub/pari/windows/snapshots/gp64-2-17-4-pre1.exe>
<https://pari.math.u-bordeaux.fr/pub/pari/windows/snapshots/gp64-readline-2-17-4-pre1.exe>

64bit, multithreaded
<https://pari.math.u-bordeaux.fr/pub/pari/windows/snapshots/gppthread64-2-17-4-pre1.exe>
<https://pari.math.u-bordeaux.fr/pub/pari/windows/snapshots/gppthread64-readline-2-17-4-pre1.exe>
I will provide link to MacOS binaries later.

For intel-based mac:

the following MacOS DMG:

<https://pari.math.u-bordeaux.fr/pub/pari/mac/snapshots/PariGP-2.17.4-pre1.dmg>
<https://pari.math.u-bordeaux.fr/pub/pari/mac/snapshots/PariGP-2.17.4-pre1-pthread.dmg>
<https://pari.math.u-bordeaux.fr/pub/pari/mac/snapshots/PariGP-full-2.17.4-pre1.dmg>
<https://pari.math.u-bordeaux.fr/pub/pari/mac/snapshots/PariGP-full-2.17.4-pre1-pthread.dmg>

the following MacOS stand-alone binaries:
<https://pari.math.u-bordeaux.fr/pub/pari/mac/snapshots/gp-2.17.4-pre1-osx>
<https://pari.math.u-bordeaux.fr/pub/pari/mac/snapshots/gp-2.17.4-pre1-pthread-osx>

For arm-based ("Apple silicon") mac
(not available yet)

<https://pari.math.u-bordeaux.fr/pub/pari/mac/snapshots/PariGP-arm-2.17.4-pre1.dmg>
<https://pari.math.u-bordeaux.fr/pub/pari/mac/snapshots/PariGP-arm-2.17.4-pre1-pthread.dmg>
<https://pari.math.u-bordeaux.fr/pub/pari/mac/snapshots/PariGP-full-arm-2.17.4-pre1.dmg>
<https://pari.math.u-bordeaux.fr/pub/pari/mac/snapshots/PariGP-full-arm-2.17.4-pre1-pthread.dmg>

the following MacOS stand-alone binaries:
<https://pari.math.u-bordeaux.fr/pub/pari/mac/snapshots/gp-arm-2.17.4-pre1-osx>
<https://pari.math.u-bordeaux.fr/pub/pari/mac/snapshots/gp-arm-2.17.4-pre1-pthread-osx>

On behalf of the PARI Group,
Bill
P.S. the CHANGES

Bug numbers refer to the BTS at http://pari.math.u-bordeaux.fr/Bugs/

 [last column crossreferences current development release 2.18.1]
Done for version 2.17.4 (released 29/06/2026):
  Fixed
BA  1- call(printsep, [" "]) -> SEGV                                      [F44]
    2- forsubset: handle trivial case of negative cardinalities [#2652]   [F47]
BA  3- ellchangecurve(E).roots could be wrong [#2660]                     [F48]
    4- charpoly(Mod(x+y,y^2+x+1),y) -> invalid t_POL [#2668]              [F50]
    5- writebin(file) only saved polynomials variables in file            [F53]
BA  6- lfun(1/3+I*10^19) -> overflow in expo()                            [F54]
BA  7- fflog(a, b, o) was very slow for small o but large fields [#2676]  [F55]
LGr 8- psi(1+O(x^5)) -> wrong result [#2677]                              [F56]
    9- zetahurwitz(large s, |x| > 1) is inaccurate (correct absolute accuracy
        but zeta(s,x) is small and relative error is large) [#2673]       [F57]
BA  10- ellcard(ellinit([ffgen([53,36]),1])) -> wrong result              [F58]
    11- polcyclofactors(((x^6+x^3+1)*(3*x^3+1))^2) -> oo loop [#2680]     [F59]