This latest build, which should be on Steam for beta testers within an hour or so, has a mix of UI improvements and bug fixes.
New quests and idle workers will now trigger notifications. Idle workers can be auto-assigned and new quests will link to the Quest Window.
There is an expanded Quest view available now when clicking on a quest, which gives more details, including rewards.
A new quest has been added to help guide players to begin searching provinces, for dungeons and other interesting sites.
The battle resolution engine has been improved, with more unit abilities being considered, improved AI and some balance tweaks to make ranged attacks a bit more useful.
As always there are the usual bug fixes and tweaks. The complete patch notes can be found on the forums.
There will be a more comprehensive update on progress towards Early Access within the next couple of days, most likely accompanied by a new patch.