The following new features have been released to Google Docs:
Quick starring: You can now star documents from inside the document and not just the documents list.
Justify paragraph: This is now in the toolbar so no more need to use Format > Align > Justify
Sharing invitations: Now, when you share a document with others, all new collaborators are now included on the email thread. This means that when someone replies to the email in the thread, the other invitees will automatically see the message.
For more information: