If you want to take advantage of the bug fixes and new features that certain updates bring you must at some point update the image, and just because a image is classed as unstable does not always mean there is a problem, it just means that we have not fully tested the image as much as we would have liked.
For those who are dubious about using so called unstable updates, we integrated several features into the image to help alleviate these fears, such as the ability to automatically create a full image and settings backup of the existing image / settings before the update goes ahead. This way if something does go wrong you can always just retrieve those backups and flash back to your known working setup.
We have put a lot of thought and effort into the current system as we were getting a lot of flack from our users about how we previously would take sometimes months to release updates for a specific update image, so this is what we have now. personally i update all of my boxes as soon as a update is available if i find a issue serious enough to warrant it i restore a backup, which does not happen that often at all.
