Hi internals, The question is in the title :-)
As far as I know, most projects follow this convention: develop on the master branch, then backport the fixes/features to older versions. I had a discussion with another core dev who told me he did the opposite: develop on PHP-5.5, then move the fix/feature up to the new branches (first PHP-5.6, then master). Is there a convention for php-src? Or is it "whatever the dev wants"? -- Regards, *Florian Margaine*