Есть предположение, что эти изменения носят чисто косметический характер Источник:
http://xn--80aaaf9agbtgd4a3f4b.xn--p1ai/%d0%b5%d0%b2%d1%80%d0%b0%d0%b7-%d0%be%d0%bf%d1%82%d0%b8%d0%bc%d0%b8%d0%b7%d0%b8%d1%80%d1%83%d0%b5%d1%82-%d1%81%d0%b2%d0%be%d0%b8-%d0%b4%d0%b8%d0%b2%d0%b8%d0%b7%d0%b8%d0%be%d0%bd%d1%8b/
http://xn--80aaaf9agbtgd4a3f4b.xn--p1ai/%d0%b5%d0%b2%d1%80%d0%b0%d0%b7-%d0%be%d0%bf%d1%82%d0%b8%d0%bc%d0%b8%d0%b7%d0%b8%d1%80%d1%83%d0%b5%d1%82-%d1%81%d0%b2%d0%be%d0%b8-%d0%b4%d0%b8%d0%b2%d0%b8%d0%b7%d0%b8%d0%be%d0%bd%d1%8b/