pub const VERSION: u32 = 3;Expand description
The newest format version this writes.
Bumped when the grammar changes in a way an older reader could not follow. A file naming a version this does not know is refused rather than guessed at; every version up to this one still reads, because each version only added to the one before: version 2 the conical helix and the periodic B-spline, version 3 entity tables with gaps in their ids. A file is written at the oldest version that holds it.