As of 02/03/2012, updated technical specifications and guides for the January 2012 release are now available. Please note that the requirements in these documents related to the price change in January 2012 are subject to change at any time up to the schedule implementation date.
Postal Service Mail.XML Technical Specifications:
Appointment Scheduling (FAST) Release 29
Profiles and Full Service Feedback (Data Distribution-(DD)) Release 29
Mailer IDs (MID) and Customer Registration IDs (CRID) Release 29
Postage Payment and Reporting (eDoc) Release 29