Let it not be said Microsoft does not look after its platforms, no matter how small. According to AnythingbutiPod Microsoft has just pushed out a firmware update for the Zune HD, bringing it up to version 4.5 (114).
Like the 3792 update for Windows Phone 7 this one does not do anything more than simply remove the compromised certificate from the IE browser in the Zune HD, which is pretty cool given I am sure the small number of people who actually use the device to browse the internet.
Microsoft has also just released 9 new apps for the Zune HD a week ago, and the last firmware update was in April this year, making the Zune HD far from an abandoned platform.
Read more at AnythingbutiPod.