I see the same difference on Windows 10: 9.01 succeeds, 9.02 crashes.
   JVERSION
Engine: j901/j64avx/windows
Release-f: commercial/2020-06-11T15:22:02
Library: 9.01.24
Platform: Win 64
Installer: J901 install
InstallPath: c:/program files/j901
Contact: www.jsoftware.com

and

Engine: j902/j64avx/windows
Beta-f: commercial/2020-09-24T11:38:10
Library: 9.02.05
Platform: Win 64
Installer: J902 install
InstallPath: c:/pgm/j902
Contact: www.jsoftware.com


On Thu, Sep 24, 2020 at 11:21 PM 'robert therriault' via Programming <
[email protected]> wrote:

> Henry, thanks for all the work that you put into improving the language
> through subsequent betas.
>
> I am away from my production computer, which has the different beta
> versions for j902, but I have found a difference between J901 and J902-f
>
>     JVERSION
> Engine: j901/j64avx2/darwin
> Beta-m: commercial/2019-10-02T11:28:59
> Library: 9.01.24
> Qt IDE: 1.8.4/5.12.5
> Platform: Darwin 64
> Installer: J901 install
> InstallPath: /users/bobtherriault/j901
> Contact: www.jsoftware.com
>
>     (1 1 $ < 0) {:: 'a';'c'
> a
>    (3 1 $ <0){:: 'a';'b';'c'
> aaa
>
> Either of these lines will crash the entire session of j902-f
>     JVERSION
> Engine: j902/j64avx2/darwin
> Beta-f: commercial/2020-09-24T12:49:44
> Library: 9.02.05
> Qt IDE: 1.8.7/5.12.7(5.12.7)
> Platform: Darwin 64
> Installer: J902 install
> InstallPath: /users/bobtherriault/j902
> Contact: www.jsoftware.com
>
> Hope this helps. I will be back from vacation on Monday, but I can still
> do a little more investigation from my laptop if necessary.
>
> Cheers, bob
>
> > On Sep 24, 2020, at 10:59 AM, Henry Rich <[email protected]> wrote:
> >
> > We are grateful for those users who take the trouble to run beta code.
> Without you, major releases would be buggy and repairing them frantic.
> >
> > This beta especially wants testers.  It includes major space
> improvements in JE execution that required visiting the code for each
> primitive and making a coding decision.  I added several run-time
> consistency checks during testing and ran our comprehensive test suite, but
> as always there is a chance that a bug slipped through.
> >
> > Henry Rich
> >
> > --
> > This email has been checked for viruses by AVG.
> > https://www.avg.com
> >
> > ----------------------------------------------------------------------
> > For information about J forums see http://www.jsoftware.com/forums.htm
>
> ----------------------------------------------------------------------
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>


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