IntRelNotes is the abbreviation for IntermediateReleaseNotes.text which is a file found in the source distribution/workspace of Cobra under the "Developer" directory. This file should be updated and included in patches unless the patch only covers something internal like refactoring. See also HowToSubmitAPatch.

When referencing tickets in this file, please use a ticket:NN which is the same syntax that Trac uses.