A: For SP1, yes. There is no combined "update rollup" after this. However, note that Autodesk also released specialized hotfixes (e.g., for Security Updates) after SP1. Check your Autodesk account for those.
autocad-lt-2015-sp1-64bit.exe official installer for Service Pack 1 for the 64-bit version of Autodesk AutoCAD LT 2015
A: For SP1, yes. There is no combined "update rollup" after this. However, note that Autodesk also released specialized hotfixes (e.g., for Security Updates) after SP1. Check your Autodesk account for those.
autocad-lt-2015-sp1-64bit.exe official installer for Service Pack 1 for the 64-bit version of Autodesk AutoCAD LT 2015 autocad-lt-2015-sp1-64bit.exe
