GNS3 0.8.4 RC2 is now released. Because there are quite a lot of changes since RC1, we have decided to release one more release candidate version before a final 0.8.4.
Here is a quick list of the changes since RC1, without including bug fixes:
New hub device (yes for real!).
VPCS is included in DMG package on Mac OS X.
New Idlemax and Idlesleep settings (advanced manipulation of idlepc).
IOS image and settings test button.
New tips dialog to promote GNS3 products/videos/tutorials (totally optional and can be deactivated).
New Tool menu to start external scripts/tools. Should help users on Windows 8.
Qemu 1.3 has been removed from the all-in-one (not fully functional).