Linesmith 4.6.4

Linesmith 4.6.4 is a small security update to 4.6.3.

• Licence keys belong to Linesmith: a key is accepted only for the Linesmith licence on Polar.
• Nothing is compiled during setup: the three packages that PyPI offers only as source code are now installed as prebuilt, hash-pinned files, so setup no longer downloads unverified build tools.
• Private data folder on Linux: projects, models and setup logs are readable only by your user account.
• No way back to unsigned updates: versions before 4.6.3 (which do not check update signatures) are no longer offered in the update settings.

Updating: Linesmith 4.4 and later update themselves to 4.6.4 when you close the app (from 4.6.3 it downloads only a few hundred KB). From 4.3 or earlier, download and run this release once.

Downloads and SHA-256 checksums are attached below.