Several changes took effect last weekend at the USPTO that will impact trademark users:
FEES: Some trademark processing and service fees were changed effective Jan. 14, 2017. Paper filers will be impacted the most. Ten TTAB fees are changing as well. For full details, see https://www.uspto.gov/trademark/fees-payment-information/trademark-fee-changes
TTAB RULES: New TTAB rules went into effect as well. The rules impact service of pleadings, timing of various parts of the process, methods for introducing testimony, and more. For more details, see:
Federal Register Notice: https://www.gpo.gov/fdsys/pkg/FR-2016-12-12/html/2016-29728.htm