If I am not mistaken, SQL server cannot be automatically updated via the regular windows backup routine. Instead, there are cummulative updates that need to be installed by hand. I assume this is done for security and stability reasons.
Is this correct? If so, how can I keep track of new updates without regularly reading SQL server related blogs? Is there any low-volume newsletter I can subscribe (ideally only announcing critical updates)?
Edit: Bonus Question: Should I even bother? I am only interested in security related issues and those shuold already be covered by General distribution releases (GDR), which seem to be patched in by Windows Update automatically.