I have been holding off on Sierra, but I had gone to El Capitan. I didn't run into any issues maintaining my Perl setup (non perlbrew) when I made that jump. I would not expect you to have any particular issues unless you are doing some really OS specific things that might change out from under you (whatever those might be). Or relying on some hypothetical capability that goes away in Sierra.

G'day Michael,

Thanks for the response. It's good to hear that you didn't encounter any problems with El Capitan.

"... unless you are doing some really OS specific things ..."

I don't really use the system's supplied applications except where I have to. I use Firefox instead of Safari; VLC instead of iTunes; Foxit instead of Preview; and so on. And, of course, as already stated, perlbrew Perl instead of system Perl.

"I have been holding off on Sierra, ..."

Assuming I do upgrade, which seems likely, it will happen in the next day or two. I'll report back with any issues and, if there were any, how I got around them.

— Ken

Just a quick update. I've completed the upgrade: all went well.

No problems in the Perl space. I successful ran a few scripts. My GUIs (Tk) worked as expected. As a test for cpan, I installed Acme: all good. No problems with Perlbrew. The OS has its own, two versions of Perl.

$ /usr/bin/perl -v | head -2 | tail -1
This is perl 5, version 18, subversion 2 (v5.18.2) built for darwin-th
+read-multi-2level
$ /usr/local/bin/perl -v | head -2 | tail -1
This is perl 5, version 18, subversion 1 (v5.18.1) built for darwin-th
+read-multi-2level
$ which perl
/Users/ken/perl5/perlbrew/perls/perl-5.24.0t/bin/perl
$ perl -v | head -2 | tail -1
This is perl 5, version 24, subversion 0 (v5.24.0) built for darwin-th
+read-multi-2level
$ perlbrew switch perl-5.25.9t
$ which perl
/Users/ken/perl5/perlbrew/perls/perl-5.25.9t/bin/perl
$ perl -v | head -2 | tail -1
This is perl 5, version 25, subversion 9 (v5.25.9) built for darwin-th
+read-multi-2level
[download]

Not related to Perl, but just for general information: it's ~5Gb download; the subsequent installation took maybe an hour (I wasn't watching it that closely); all of my standard applications (including Firefox, Thunderbird, VLC, OpenOffice, Foxit) worked as previously (i.e. no reinstallation or reconfiguration required); the overall look-and-feel is virtually identical.

Or perhaps you are concerned about specific modules in the perl ecosystem? In that case, bug reports or CPAN Testers reports for the distribution in question would seem to be the authoritative source for such information.

No, I was asking about other people's experiences ("Any gotchas", etc.).

I've now finished the upgrade: Re: Perl on Sierra (Mac OS X 10.12.x): any issues? [Upgrade completed successfully]

— Ken

"Why are you not running perlbrew?"

I did a search of this page for "perlbrew", to check that I hadn't inadvertently said I didn't use it. Here's the matches.

From "Perl on Sierra (Mac OS X 10.12.x): any issues?":

"I use Perlbrew and never touch the system Perl"

From "Re^2: Perl on Sierra (Mac OS X 10.12.x): any issues?":

"And, of course, as already stated, perlbrew Perl instead of system Perl."

— Ken

Howdy!

Assuming you're asking me, it's because I've been using Perl from way before there was a perlbrew, and have not made the leap. Heck, I only recently started using cpanm to install modules. In order to make effective use of perlbrew, I need to become more conversant with managing my installed modules in the perlbrew world, and I probably need to do some disk space rearranging given how full my system disk is these days.

yours,
Michael

The reply was to the OP, not you.