# NativeCAD 0.29.0 "Iwaki": class-A G4 bodies, click-to-pin review, version compare

**196 tools (192 in 0.28.0): `cad_blend_loft`, `cad_compare_versions`, `cad_project_save` and `cad_project_open` are new, none removed. The command schema is 1.84.0.**

* **`cad_blend_loft` builds class-A bodies from a few sections.** Key shapes blend through stations as one smooth skin plus two caps, 4 faces however many stations you give. Every result carries a measured G4 certificate, and two lofts can join with no lip. Tested on a race car model: 246 lofted bodies build through it and certify G4, and it refuses rolled ends that would fold at the rim, naming the fix.
* **Pin notes on the model in `cad_view_body`.** Hover names the body, face and surface type. A click pins a note with the exact face, point and camera, and your assistant reads the pins back, so "fix this here" means a specific face.
* **`cad_compare_versions` shows what changed, body by body.** Compare two versions, the live model or a STEP file: unchanged, changed (with the measured move and volume change), added or removed, with an offline A/B viewer that takes pins too.
* **`.nativecad.json` project files.** `cad_project_save` and `cad_project_open` carry a model between sessions, with part number and description. The web IDE opens and saves the same file.
* **More to Onshape and other CAD systems.** `cad_export_body` writes a FeatureScript custom feature rebuilt from the op history, and x_t and STEP carry part number, description and material.
* **Also:** G3 and G4 held across fill patches and fairing, more Creo parts opening valid, cleaner boolean slivers, a viewer shading fix on open skins and many tessellation fixes.