Here is some information from the Bwilcox site:
Download/Install CBECC-Res 2019 – For Compliance with the 2019 Standards
CBECC-Res 2019 can be used to show compliance with the performance approach of the 2019 California Residential Building Energy Efficiency Standards, in effect for building permits filed on or after January 1, 2020.
- CBECC-Res 2019.1.1 – November 26, 2019 (alternate link)
Click either link to download CBECC-Res 2019.1.1 (1574), which includes only corrections to internal HERS provider specifications. This version is required to successfully register some 2019 projects with a HERS provider. CBECC-Res 2019.1.0 was approved by the California Energy Commission on May 15, 2019. A description of this release is located here.
Please read the CBECC-Res 2019 Quick Start Guide for more information.
Please note: CBECC-Res 2019 can read RIBD files generated in CBECC-Res 2013 or CBECC-Res 2016 (backwards compatible), but CBECC-Res 2013 and CBECC-Res 2016 cannot read RIBD files generated in CBECC-Res 2019 (not forwards compatible). If you are also using either 2013 or 2016 compliance software, be sure to install the programs in different directories.