Prepare release

#PS-386 - update to 19.2.0

Prepare 16.2.0 release

#PS-386 - refactor code examples

#PS-386 - add region option

#PS-386 - update dependencies

#PS-386 - fix synchronization after redeploy

Prepare 15.1.0 release

Prepare 15.0.0 release

Prepare 14.3.0 release