State Department website indicates the policy goes into effect on Wednesday?!
http://www.state.gov/r/pa/prs/ps/2014/11/233904.htm
Starting November 12, the United States and the People’s Republic of China will reciprocally increase the validity of short-term business and tourist visas and student and exchange visas issued to each other’s citizens.
Chinese applicants who qualify for a B-category nonimmigrant visa (NIV) may now be issued multiple-entry visas for up to 10 years for business and tourist travel. Qualified Chinese students and exchange visitors and their dependents who qualify for F, M, or J-category visas are now eligible for multiple-entry visas valid for up to five years or the length of their program. U.S. citizens eligible for Chinese short term business and tourist visas should also receive multiple-entry visas valid for up to 10 years, while qualified U.S. students may receive student residency permits valid up to five years, depending on the length of their educational program.