Ive had this update for a few weeks, and though I dont really care for the new look and feel, its been ok for me functionally.
However, today the app signed me out, which wouldnt be a big deal since Ive stayed logged in for a long time through several app updates. But I wasnt able to log in without providing my birth date. Thats not something that I want or need to share with every app, since it is used as personal identifiable information (e.g. by banks, government agencies, etc...) It isnt something totally private for most people, but Skype doesnt need it, and should not be forcing me to give it out.