I've been trying to clean up my QData file and get all the downloaded bank transactions accepted into the registers before upgrading.
Quicken updates are free, and Quicken may tell you an update is available when it starts up.
After applying this patch, now Quicken 2016 crashes after I enter the QData password before displaying the file. In the last two years Quicken has worked with no errors a total of about a week.
I finally decided to create a new QData file and discovered that that crashes as well so basically the program is useless. I have purchased new versions each year for the last 3 years in the hopes they fixed previous issues but no. They have seemed to abandoned this side of the company and perhaps have concentrated on just Turbo Tax since that is a majority of their revenue.
There may be a situation in which the One-Step Update process does not work.
You can still update Quicken by following the manual update process, however.