Sizer 2019, Update 4 (Version 12.4) was released on October 28, 2022, and introduced numerous changes for bug fixes and small improvements. These are described in the the Sizer Features and Changes document.
See Also
Sizer 2019
Design Codes and Standards
Beam and Joist Hanger Database and Design (Feature 226)
Cross-Laminated Timber (CLT) Design (Feature 214)
Other Changes
Sizer 2019, Update 1
Sizer 2019, Update 2
Sizer 2019, Update 3