On 2023-04-03 11:48:42 +0500, Stanislav Vlasov wrote: > And I saw perl5 scripts from past (about 5.6 or lower), which can't > run on perl5 from current (5.22 or so at the moment).
I would say that's quite rare (or these scripts were using experimental features). I started with perl 5.000 in early 1995, I think (the oldest Perl script I still have in my archives is from 1995-02-12), and wrote many Perl scripts, and couldn't see any incompatibility, except some rare warnings on poorly written code (very easy to fix). For my work, I'm still running large complex scripts I started to write in January 1999. Practical incompatibilities in the C language are much worse with modern optimizations. -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)