Editing the release yourself after it has been distributed does NOT change the release in the stores.
If you want to make a change to a release you will need to submit a support request. Do this by clicking the 'Support' link from the release toolbar. You will need to specify which tracks are affected by the change and which stores. Please be as detailed as possible when submitting your request. We will do our best to reply within 8 hours of the request.
Depending on the store and what has been updated, changes can take anywhere from a day to a week to take place.
If your change requires adding or removing a track, or changing the order of the tracks on the release, then most stores require us to remove the release from the store and resubmit it for distribution. This means that any chart positions you have will be lost and the release may be offline for a number of days.