We have a licensed 4.75 version and used it to generate edmx. We moved to 5.0 without changing the schema and so we did not regenerate the edmx. Now we tried 5.7 to generate edmx and got significantly different, specifically, size 793(v4.75) kb vs 395(v5.7) kb, and the associationsets are not generated. Note our schema did not change. I went back to 4.75 to regerate and the associationset were generated perfectly.
Am I missing something?