Any updated compatibility issues with Sawyer Mini threads attaching to dirty water
bags?

Reason I am asking is the threads between a new mini and my old (5 yeas +/-) Evernew water bag don’t work well together. The old bags fit perfectly on an older model mini. Odd.

Were there any changes in recent years to the threads?

More importantly, any recommends for makes of dirty water bags to use with new minis (will be used with existing gravity feed system)?