ABAP Add-On Patch Version (Emergency Patch)
The concept name is not defined in the provided sources, and no supporting detail about a specific SAP developer concept can be extracted beyond the context of add-on updates. Based on the available source, an add-on update is a mechanism that allows an add-on administrator to provide different kinds of updates to an add-on on SAP Business Technology Platform. Developers use it to deliver changes or fixes to installed add-ons, as described in the Create Add-On Update documentation.