ShapeCraft 0.4.1-alpha

The first public release.

New (from 0.4.0, which was tagged but never published):

• ShapeCraft keeps itself up to date: it checks for a new version when it starts and once a day, downloads it in the
  background, and installs it when you close ShapeCraft (it asks first, or always, your choice).
• Help ▸ Check for Updates…, and an Updates section in Preferences ▸ ShapeCraft.
• Downloads for macOS (Apple silicon and Intel), Windows (installer and portable zip) and Linux (AppImage and
  tar.gz), each with OpenCASCADE inside, and SHA256SUMS.txt to check them.

Fixed:

• The release builds on Linux (a C++ conversion GCC refused) and Windows (the linker).

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Alpha: keep copies of anything important. ShapeCraft updates itself from here on: it downloads new
versions in the background and installs them when you close it.

First launch: macOS asks once: System Settings ▸ Privacy & Security ▸ Open Anyway.
Windows SmartScreen: More info ▸ Run anyway. Linux: make the AppImage executable, then double-click it.

Check a download against SHA256SUMS.txt: shasum -a 256 FILE (macOS, Linux) or Get-FileHash FILE (Windows).