chore: prep v0.0.28

Signed-off-by: Facundo Tuesca <facundo.tuesca@trailofbits.com>

Author: facutuesca

CHANGELOG.md

@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.0.28]
+
+### Changed
+
+- Upgraded `sigstore` dependency to `>=4.0.0`
+
 ## [0.0.27]
 
 ### Fixed
@@ -315,7 +321,8 @@ This is a corrective release for [0.0.14].
 
 - Initial implementation
 
-[Unreleased]: https://github.com/trailofbits/pypi-attestation-models/compare/v0.0.27...HEAD
+[Unreleased]: https://github.com/trailofbits/pypi-attestation-models/compare/v0.0.28...HEAD
+[0.0.28]: https://github.com/trailofbits/pypi-attestation-models/compare/v0.0.27...v0.0.28
 [0.0.27]: https://github.com/trailofbits/pypi-attestation-models/compare/v0.0.26...v0.0.27
 [0.0.26]: https://github.com/trailofbits/pypi-attestation-models/compare/v0.0.25...v0.0.26
 [0.0.25]: https://github.com/trailofbits/pypi-attestation-models/compare/v0.0.24...v0.0.25

src/pypi_attestations/__init__.py

@@ -1,6 +1,6 @@
 """The `pypi-attestations` APIs."""
 
-__version__ = "0.0.27"
+__version__ = "0.0.28"
 
 from ._impl import (
     Attestation,