FAQ 1.7: How stable is Perl?

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This message is one of several periodic postings to comp.lang.perl.misc
intended to make it easier for perl programmers to find answers to
common questions. The core of this message represents an excerpt
from the documentation provided with Perl.


1.7: How stable is Perl?

    Production releases, which incorporate bug fixes and new functionality,
    are widely tested before release. Since the 5.000 release, we have
    averaged only about one production release per year.

    Larry and the Perl development team occasionally make changes to the
    internal core of the language, but all possible efforts are made toward
    backward compatibility. While not quite all perl4 scripts run flawlessly
    under perl5, an update to perl should nearly never invalidate a program
    written for an earlier version of perl (barring accidental bug fixes and
    the rare new keyword).


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