I will admit it would be nice to have a single list of "release notes" but there are like 30 various projects and some 20+ million lines of code getting released all at once. Keep track of all of that at once, let alone at detail fine enough to be useful would be difficult.
As a result they have been doing a "blogathon" where various community members are posting whats new, etc. On the main page of eclipse.org I clicked on blogathon.
On the page that comes up (http://eclipse.org/helios/blogathon/reviews.php):
Eclipse Helios: What’s New in JDT
Top 10 Eclipse Helios Features
Let’s See What’s New in Eclipse 3.6
Git Support, Top Eclipse Helios Feature #2
New and noteworthy in Helios (Eclipse 3.6)
etc, etc etc.
As a result they have been doing a "blogathon" where various community members are posting whats new, etc. On the main page of eclipse.org I clicked on blogathon.
On the page that comes up (http://eclipse.org/helios/blogathon/reviews.php): Eclipse Helios: What’s New in JDT Top 10 Eclipse Helios Features Let’s See What’s New in Eclipse 3.6 Git Support, Top Eclipse Helios Feature #2 New and noteworthy in Helios (Eclipse 3.6) etc, etc etc.
Just have to pick some and read them.