Kiln 1.4.1

Added

• Rebuild a saved design in one step. rebuild_design re-runs a design's
  saved build recipe: parametric designs re-derive from their OpenSCAD source
  and parameters, imported models re-slice their saved parts. It replaces
  smart_redesign, which is retired.

Changed

• Previews look like the real thing on every computer. Preview images now
  use the same studio look as the web app — print bed, lighting, shadow. That
  used to need a browser on your machine; it's built in now.

• Running several printers at once is a Kiln Business feature, and that now
  properly applies to every printer command. hand_back_printer moves Kiln
  between machines without touching a running print.

• When Kiln asks you to update, it says what you'd get. Update prompts
  used to give you the version number and nothing else. Now they name two or
  three of the things the new release adds, so you can decide whether it's
  worth doing right now instead of taking it on faith.

Fixed

• Slicing for a Bambu now names the file to upload. It produced two
  files and pointed at the one Bambu printers can't start from, so the
  upload was refused a few steps later. Kiln now names the right one.

• Designs and slices no longer fail at random on macOS. OpenSCAD and
  PrusaSlicer sometimes crash on startup, before reading your model. Kiln
  retries instead of failing.

• Preview renders no longer take over your desktop on macOS. They could pop
  up a keychain dialog for Chrome — a browser you never opened — and bounce a
  second Chrome icon into your Dock. Neither happens now.

• A logo with a see-through background now carves just the mark. Kiln was
  reading the empty space around the artwork as solid ink, so it cut the logo's
  whole rectangle into the part as a sunken frame. White logos came out blank.
  Now fixed.