I am in the same process of applying the maintanance pack.
By going through the doco and TS , the maintainance order needs to be processed and will be available for the download,
Although I cant find the very specific steps to apply the same. Shall dig through all the admin guides ,
At the very least run the DM to update the software and redeploy all the web applicaitons will be involved.
Best ,
Sai Korrapati