Autodesk’s official statement after SP2: "No further service packs are planned for AutoCAD Structural Detailing 2015. Users are encouraged to migrate to Revit Structure or Advance Steel."
Since ASD 2015 is obsolete and incompatible with modern Windows OS versions (10/11), consider migrating to: autocad structural detailing 2015 service pack 2
to protect against potential vulnerabilities regardless of whether the standalone hotfix was previously applied. Structural Detailing Specific Fixes Auto-Positioning Fix autocad structural detailing 2015 service pack 2
Have you encountered a specific bug in ACD 2015 SP2? Still using it for a live project? Let us know in the comments below. autocad structural detailing 2015 service pack 2
: Resolves issues where hatches in blocks displayed incorrectly during plots or became invisible if the background color was similar. Cursor Behavior : Introduces the CURSORBADGE