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py-cid v0.5.0 (2026-02-13)

Features

  • Add comprehensive feature parity with go-cid implementation.

    This includes 13 major features organized by priority:

    Critical Features (P0): - JSON Marshaling (IPLD Format): BaseCID.to_json_dict(), BaseCID.from_json_dict(), and CIDJSONEncoder for full JSON integration - Prefix Operations: Prefix class for CID metadata management, Prefix.sum() for creating CIDs from data, and BaseCID.prefix() for extracting prefix

    High Priority Features (P1): - /ipfs/ Path Parsing: parse_ipfs_path() and automatic extraction in from_string() - Extract Encoding: extract_encoding() to get multibase encoding without full parsing - Trailing Bytes Validation: from_bytes_strict() for strict CID parsing

    Medium Priority Features (P2): - Builder Pattern: V0Builder and V1Builder for fluent CID construction - Set Operations: CIDSet class for managing collections of unique CIDs with full Python set interface - Defined Check: BaseCID.defined() to check if CID is valid - Stream Parsing: from_reader() for parsing CIDs from streams

    Low Priority Features (P3): - MustParse: must_parse() convenience function for strict parsing - Binary/Text Marshaling: BaseCID.to_bytes(), BaseCID.to_text(), and BaseCID.from_text() - KeyString: BaseCID.key_string() for binary representation as string - Loggable: BaseCID.loggable() for logging purposes

    All features include comprehensive tests (168 total, 81% coverage) and complete documentation with working code examples. (#60)

py-cid v0.4.0 (2025-12-19)

Features

  • Add Python 3.14 to the supported and tested interpreter list across tox and CI. (#45)
  • Migrate from pymultihash to py-multihash >= 2.0.0 for better maintenance and modern API support. (#47)

Internal Changes - for py-cid Contributors

  • Update license format in pyproject.toml from deprecated TOML table to SPDX string format to comply with setuptools>=77.0.0 requirements. (#46)
  • Copied base58 code directly into py-cid to avoid future dependency issues. (#52)

py-cid v0.3.1 (2025-09-12)

Miscellaneous Changes

  • Complete build system modernization with pyproject.toml Added comprehensive development tooling (ruff, mypy, pre-commit, tox) Updated dependencies to use pymultihash instead of py-multihash Added GitHub Actions CI/CD pipeline Added type stubs for mypy support Updated Python version support to 3.10+ Enhanced testing with pytest, hypothesis, and coverage Added towncrier for changelog management Improved documentation and contributing guidelines (#40)

0.2.1 (2018-10-20)

  • Fix edge cases with multibase and multihash decoding
  • Added hypothesis tests while verifying CIDs

0.1.5 (2018-10-12)

  • Handle the case where an incorrect base58 encoded value is provided to make_cid

0.1.0 (2017-09-05)

  • First release on PyPI.