We've been pondering about whether to add some more specialized validators in the Symfony core, and because it does not hurt to have a few more built-in validators, Symfony 2.3 comes with some new ones: IBAN, ISBN, ISSN, and currency.
I don't have to say much more about them, so let me explain why I've been writing about small 2.3 additions until now:
- I want to demonstrate that contributing to Symfony does not necessarily mean doing big things -- any Symfony developer is able to help the community at some point (as of today, 780 did for the code and 492 for the documentation);
- I want to thank all contributors, and giving them some exposure and recognition on this blog is probably a good way -- if you have ever contributed, you are also listed on the Symfony hall of fame;
- I want to make everyone realize that we are slowly but steadily moving from the big bang to a less crazy activity -- you can read more on this topic on my personal blog in case you missed it.
Next time I'm going to write about a very exiting 2.3 new feature... just to demonstrate that Symfony 2.3 is also really worth it. Until then, stay tuned!
Nice to see that you have change your position about the isbn constraint https://github.com/symfony/symfony/pull/2298