Transiting through China without a transit visa.

Zevon, I'm afraid your country is not on the list of countries enjoying the 72-hour free transit.

I transited through Shanghai and Guangzhou before without a visa last year and the year before but I heard the policy has changed recently and I am looking all over the inter for any updates on such issue I even try contact China's embassy by email but no luck that's why I left a question here I am so confused .