v9.0.0 (2025-02-26)

Fix: model.vulnerability.VulnerabilityReference's properties are all mandatory (#790 via #792)
Refactor: Rename spdx.is_compund_expression -> spdx.is_expression (#779)
Behavior: BomRef affects comparison/hashing (#754 & #780)
This is only a breaking change if you relied on ordering of elements.
Behavior: streamline comparison/hashing functions (#755)
This is only a breaking change if you relied on ordering of elements.
Dependency: bump dependency py-serializable >=2 <3, was >=1.1.1 <2 (#775)
This is only a breaking change if you have other packages depend on that specific version.

What's Changed

Full Changelog: v8.9.0...v9.0.0