I'm in 2.92 now opening projects from previous versions and all is well so far. Q: When the new-version splash screen asks to select new or use previous config

I'm in 2.92 now opening projects from previous versions and all is well so far. Q: When the new-version splash screen asks to select new or use previous config, am I missing out on optimizations or new features by selecting previous? - The render cache indicators in VSE are gone. The orange bar segments that show strip cache building is comforting while Preview FPS stutters. Confirm that caches are being built ... but in default /tmp/ vs what's in my previous config. Will start w/ a 2.92 config and update. Tangent: 2.92 was in the Snap Store earlier this week and updated without hassle. Understood there are issues w Snap, but this was a good experience.