A common practice is once Patches are released for deployment, the reference images need to be rebuilt to have all required patches installed in your reference image.
Even though this is not something that needs to be monitored once it worked well in the past, it is a very time consuming process.
An alternative way is to use dism.exe to do it yourself, but that requried manual labour which will eliminate the benefits of having as much as possible automated.
Finally, ConfigMgr 2012 has the option to inject Patches to an image automatically without rerunning a build and capture Task Sequence to have the updates installed.
The Offline Service Manager allows you to inject updates to a reference image and will update te image for you.
Once finished all you need to is updating your Distribution Points and you’re finished…
This allows you to redefine your update strategy and have it done quickly.
In my opinion, I would not even consider using the ‘Install Updates’ task in any Task Sequence which will increase deployments dramatically…