id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
20974	Remove obsolete locale-specific files on upgrade	SergeyBiryukov	dd32	"We used to have `wp-content/languages/ru_RU.css` file in ru_RU package.

Since #19603, it's no longer needed, but is still left over on upgrade. We should probably include it in `$_old_files`.

I suppose the same applies to zh_CN and he_IL packages ([19825])."	defect (bug)	assigned	low	Future Release	I18N	3.4	normal		has-patch needs-refresh 3.6-early