[Koha] 2.2.9 or 3.0?

Hi, We have recently upgraded to 2.2.9 and are now considering going to 3.0. We have noticed a couple issues with 2.2.9 (amazon content using 3.0 web services instead of 4.0, and Z39.50 search throwing error for title, isbn etc when it's been entered). Should we continue upgrading straight to 3.0 or wait for it's full release? We are a small library in a physics institute with 2000 or so books. There is some pressure to go to a purchase system here, but we use primarily open source, and really like the koha product. Thanks for your input, Steve Bradwell Application Development Manager Perimeter Institute for Theoretical Physics <http://www.perimeterinstitute.ca/> (519) 569-7600 x5062.