|[p2-dev] New explanation support enabled by default|
The new explanation support is now on by default. To give it a try you can grab the the following N build http://download.eclipse.org/eclipse/downloads/drops/N20090301-2000/.
This support is not yet final and the reason to enable it by default is so we can collect some data about performance on large configs https://bugs.eclipse.org/bugs/show_bug.cgi?id=266687
Support for reponsive cancellation is not in yet but we should be able to make it for tomorrow I build (https://bugs.eclipse.org/bugs/show_bug.cgi?id=266598).