7.0-alpha3 core version not recognized as valid in a profile make file

Sounds like a bug in drush make. Are you doing this on the command-line directly with drush, or are you using the UI on drupal.org?

this is a problem in drush_make_validate_info_file() -- the regex doesn't support any alpha|beta|rc releases at all:

elseif (preg_match('/^(\d+)(\.(x|(\d+)))?$/', $info['core'], $matches)) {

So it's not just in the d.o-specific plugin for drush make, after all. Moving component...

how's this look?

Untested, but that visually appears fine to me.

It's case-sensitive, though, so you might want [a-zA-Z0-9]+ just in case (although our version strings are _supposed_ to be lowercase). Or, at that point, you could just use 1 or more "word" characters: \w+ since it's basically equivalent except \w also matches underscores.

*shrug*

.make files are specified according to the visible version string (the kind you'd see on the title of release nodes), so for consistency i'll keep this validation the same.

fixed, thanks