just wanted to add to YW Moderator-42
Most People nowadays dont actually fast, although there are kehilos that still say the Mi Shebeirach on shabbos for those that do fast.
Also, the slichos is really only said in Yeshivos and kollelim ( I think, correct me if i am wrong)
and sefaradim dont have it at all.
And Yekkes start it later than the others,-about 2 weeks later- because they want the first monday to fall around Kristalnacht