Most of the Mathematica users beyond beginner level will be aware of the phenomenon of Packed Arrays. The user-accessible functions related to packed arrays live in the Developercontext and have been there for quite some time. I wonder what this means for their future use.

Is Developer more stable than Experimental? Can we expect this functionality to move into the kernel and what calling strategies could we adopt to minimize the effects such a move would have?

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pack = DeveloperToPackedArray;
then only use those; if anything changes then it's only one place I need to change it. On the other hand a re-factoring: of DeveloperToPackagedArray is not the end of the world.