Yes, Goodnites have changed. I spent 3 days, going to 8 stores each day, and found a pack from August, dated 2018-08-01. I have news:
Compared with the same model produced 2017-04-03 (April) the exterior and side nonwoven materials have new softer and less dense form. I believe that I find them easier to put on and off, and they might fit bigger waists.
I have 7 in the pack left. I will mail you one if you want.
Width, Length seem the same. I stretched them out as much as I could with my hand a stout tape measure and found that they both could stretch to 24 inches in length. I know that the current design, 2017 goodnites flattened out, but not stretched out, lie 12.25" tall (2007-2012 Goodnites were 12.5", or 25" in total length). The width is 7" on both models.
At the moment, I think I like the denser, less soft sides of the old version, cause it reminds me I'm in my diapie, but maybe this causes less friction during long walks?