Re: Exploit the versioning (was Re: Backwards compatibility and release 1.0)

On 2015-10-15 5:27 AM, yary wrote:
> Short answer: everything must declare which semantics it expects-
> everything in Panda/CPAN at least. And we already knew it, just need
> to do it.

I believe this is something Perl 6 should require in general, if it doesn't. 
That is, it should be MANDATORY for Perl 6 code to declare what version of Perl 
it expects.  (The sole exception is one-liners.)  If we don't do this, people 
are going to be lazy and not say anything, and then there will be a large base 
of code that officially is just saying "any version of Perl 6 will do" but they 
silently actually expect Perl 6.0.0.0.... semantics.  We're always going to be 
stuck with this problem if we don't make declarations mandatory now.  That's a 
much more important change to ingrain into those several hundred existing 
modules, if they aren't already, nevermind the :D thing. -- Darren Duncan