New Si2 OpenAccess Contributions help you leverage OA-based technology and information.

• Si2Delta displays (in an easily readable format) differences between the OA API doc files of different OA releases. This display enables quick identification of every detail that changed in the API documentation from one release to the next, wherever it occurs throughout the tree. This can help a programmer anticipate behavioral differences that might otherwise be overlooked.
  
• Si2 OA Tutorial is a PDF version of the popular Si2 OpenAccess Online Course. It is now packaged with all the exercises and labs. Though lacking many of the features of the Online version, it is a compact, portable solution to OA API training needs.

Enhancements to the Si2 OpenAccess Online Course and Members-Only Si2 OpenAccess Online Docs help you master the API.

• Si2Delta links appear on every page that differs from the corresponding page in the prior release. Following the link produces an easy-to-read, side-by-side display of the two pages with each difference highlighted.
  
• Search engine links appear at the top of each page. Matches are conveniently categorized according to main sections, such as "API Ref", "Programmers Guide", "Translators", etc. The Online Course search includes additional categories like "Lab Code", and "Supplementary Materials" – even "Course Deltas".
  
• Collaboration Comments enable community-driven, dynamic extension of the Si2 Online Course at a per-page granularity. Whether adding errata, additional example code, or flow-specific use-cases, Comments provide immediate benefit to others taking the Course.