In case anyone is wondering what regressed is: verb
past tense: regressed; past participle: regressed return to a former or less developed state.
After having problems with VLC not working in Mint 19 and a few other problems I went back to Mint 18.3 By formatting the root partition but not the home partition, I was able to retain most all of my settings and Apps including some of the new ones like Red Shift, and Time Shift. VLC now works great. Guess I will have to wait awhile for the bugs in Mint 19 are fixed before installing on my production machine. Can't beat the stability of 18.3
Mel