Module versioning 

Semver reasoning for cache coverage: which upgrade a client may accept silently, and which breaking line a version belongs to.

Enums

SemverBreakingLine

The semver breaking line a version belongs to.

Functions

breaking_line

The breaking line version belongs to.

is_semver_compatible_upgrade

Whether candidate may replace current under cargo’s ^ compatibility rules: strictly newer, on the same breaking line, and not a pre-release.

is_within_recent_breaking_lines

Whether candidate’s breaking line is among the limit most recent distinct breaking lines in known_versions (ordered by the newest version in each line).