nopCommerce 2.20 medium trust critical issue fix

We released nopCommerce 2.20 on October 11th. It has a critical issue. It doesn't work in medium trust (reported here). That's why we've just released a new version of nopCommerce. So if you downloaded nopCommerce 2.20 before October 14th, then download the latest version again here (its version is still 2.20)

Or you can follow the next steps in order to manually apply the fix. Please see changeset a1147f9c4dcb

Is there instruction for applying the manual fix?

See changeset a1147f9c4dcb. It has a list of changed files with highlighted changes. Apply them to your solution and recompile it.

Do you download the changes and then compare them to your current code?

or are you using a tool for this in VS?