Append change log for 12.2-beta2.
Append change log for 12.2-beta2.

artemnikitin/SeriesGuide,UweTrottmann/SeriesGuide,hoanganhx86/SeriesGuide,0359xiaodong/SeriesGuide,UweTrottmann/SeriesGuide,r00t-user/SeriesGuide,epiphany27/SeriesGuide