History of Data and Software Upgrades

Updates are made to improve CAST’s functionality and to maintain consistency with the other Chesapeake Bay Program Partnership models including Scenario Builder and the Watershed Model. Generally, the changes to the Chesapeake Bay Program Partnership models result from the incorporation of new science as recommended by expert panels and Partnership decisions.


Recent Updates

The latest version was deployed on June 14, 2016

  • The 2017 Milestones are now available. The milestones are part of the Chesapeake Bay TMDL and outline steps the Bay jurisdictions will take in the next two years to reduce nitrogen, phosphorus and sediment pollution to the Chesapeake Bay, and what reductions those measures will achieve.


Previous Updates

  • Version deployed on April 14, 2016
  • Version deployed on January 29, 2016
  • Version deployed on January 13, 2016
  • Version deployed on December 18, 2015
  • Version deployed on October 23, 2015
  • Version deployed on August 5, 2015
  • Version deployed on May 11, 2015
  • Version deployed on January 15, 2015
  • Version deployed on December 22, 2014
  • Version deployed on December 3, 2014
  • Version deployed on November 27, 2014
  • Version deployed on October 13, 2014
  • Version deployed on September 8, 2014
  • Version deployed on June 10, 2014
  • Version deployed on May 2, 2014
  • Version deployed on March 17, 2014
  • Version deployed on March 7, 2014
  • Version deployed on December 15, 2013
  • Version deployed on November 4, 2013
  • Version deployed on October 23, 2013
  • Version deployed on October 21, 2013
  • Version deployed on July 15, 2013
  • Version deployed on December 6, 2012
  • Version deployed on October 23, 2012
  • Version deployed on October 16, 2012
  • Version deployed on October 9, 2012
  • Version deployed on September 19, 2012
  • Version deployed on August 22, 2012
  • Version deployed on July 9, 2012
  • Version deployed on May 29, 2012
  • Version deployed on February 29, 2012
  • Version deployed on December 7, 2011