I have seen customers asking this question about they can use an old build while creation of a release as we show only latest 100 builds in the create release dialog. For example in the below dialog, we are not showing any builds older than ...20170510.33 version.
Here are the steps that you should follow to use an older build.
1. Open the old build and find out its build Id. For example for the below build, its build Id is 3861910.
2. Specify the build in the create release dialog and it should work.