 On March 3, 2009, the Time Capsule was updated with simultaneous dual-band 802.11 Draft-N capability, remote AirPort Disk accessibility through Back to My Mac, and the ability to broadcast a guest network at the same time as an existing network.On October 20, 2009, Apple unveiled the updated Time Capsule with antenna improvements resulting in wireless performance gains of both speed and range.Also stated is a resulting performance improvement/time reduction on Time Capsule backups of up to 60%.