What after a week of releasing Beta 1 there is now Beta 2, Again this make me think if we need to install WordPress updated version whenever it available.
Here are the changes as specified by Boren
- Insert image and edit image fixes
- SSL fixes
- i18n fixes
- Lots of new inline documentation
- Improved tag auto-suggest
- TinyMCE 3.1.1 with Opera 9.5 and Safari fixes, proper align = center removal, and improved embeds support
- jQuery UI 1.5.1
See the full list of changes since beta 2.
So if you are planning to make updates I would suggest that to do it only on your test site. Who knows the Beta might have lots of loophole that may lead to attack from Hackers.