- LINQ (several issues)
- INotifyCollectionChanged implementation in EntitySet - we discovered there were few WPF-specific issues, e.g. in some cases WPF tries to enumerate an EntitySet of already dead (removed) entity.
- Order of events in paired property sync scenario (earlier I described this scenario).
- Proper assignment of command timeout - in particular, during schema upgrade.
Sorry, no links to issue pages. All these issue are minor (some of them were fixed without crating an issue in public tracker at all), so ether you already know about some of them, or they aren't important for you ;)