As for the new features, FreeBSD 11.0 RC1 ships with fixes for a ZFS/VFS deadlock, a NULL pointer dereference in IPSEC, a VESA panic that occurred during suspend operations, a problem with the Google Compute Engine image publication, an AES-ICM heap corruption typo, and a regression in the pf.conf configuration file. Additionally, it looks like the SSH (Secure Shell) version 1 protocol is no longer supported, a loader tunable, namely hw.pci.enable_pcie_hp, was added to disable PCI-e HotPlug, PCI-e hotplug on bridges that have power controllers has been disabled by default, along with OpenSSH DSA keys.