New Carlson 2026 / IntelliCAD 13.1 and 12.1 build (260513) is posted

New Carlson 2026 / IntelliCAD 13.1 and 12.1 build (260513) is now available for testing.

IntelliCAD side:

A workaround to AMD driver update crash has been implemented. We are also working directly with AMD driver team to produce a driver update that fixes the issue as it affects many IntelliCAD versions that we would not be able to update. 

Carlson side changes:

Road Design & Roadnet

• Fixed a bug causing road TIN generation errors and bad TIN merges. (CC-22354)

• Resolved a crash that occurred when displaying the network tree view. (CC-22296)

• Template point centerlines dialog now automatically detects the line's side relative to the main road. (CC-22210)

• Added ability to import and export special station lists via .uds files. (CC-21207)

• Fixed an issue where the "Full Range" button failed to extract the proper station range. (CC-20354)

• Fixed a template template display bug where the fill bench was not visible. (CC-21333)

Hydrology & Pond Design

• Updated C-factor and pond design routines to store, display, and report C-factors up to 4 decimal places. (CC-22321)

• Saved the culvert design control type within the pond design file for use in routing calculations. (CC-22322)

• Fixed a NOAA download freeze caused by an infinite recursive loop in acad_invoke(). (CC-22085)

Survey & Annotation

• South Azimuths now display correctly when using compressed line labels with AUTOANN. (CC-22293)

• Corrected azimuth calculations within the Point to Point Table. (CC-21610)

Please let us know if you encounter any issue which will have to be fixed immediately or other issues which are new.

As always, if this build is problematic, a full official install can be used to restore.

Thank you,

Leonid.