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Changelog#

[1.2.1] - 2025-05-08#

  • Fixed order in UNITs constant for SEMANTIC/CONTENT unit combination
  • Improved error message for invalid ISCC-UNIT combinations in encode_units
  • Added utility for calculating Normalized Prefix Hamming Distance/Similarity (NPHD/NPHS)
  • Updated CI runners to the latest versions
  • Updated Dependencies

[1.2.0] - 2025-03-23#

  • Improved text_clean function to better handle whitespace-only lines and trailing newlines
  • Fixed text_clean behavior to match test expectations
  • Updated CI configuration to use latest test environments
  • Optimized DataHasherV0.push() to improve streaming efficiency
  • Added input validation for empty frame signatures in video code generation
  • Improve error handling and validation in decode_varnibble
  • Added experimental WIDE subtype in ISCC-CODE for 128-bit Data and Instance codes
  • Added experimatnal ISCC-IDv1

[1.1.0] - 2024-11-23#

  • Added support for Python 3.13
  • Added multiformats support for codec convenience functions
  • Added iscc_validate_mf for validation of multiformat codes
  • Changed CDC index to size if size is smaller than minimum chunk size
  • Updated dependency lock file
  • Fixed data-url api change
  • Removed Python 3.8 support (EOL)

[1.0.9] - 2024-03-17#

  • Updated dependencies
  • Fixed issue with decoding lower case base32hex strings
  • Added support for MSCDI validation

[1.0.8] - 2024-01-30#

  • Added implementors guide to README.md
  • Improved pydantic v2 import logic
  • Improved prefix extraction during normalization
  • Improved canonical ISCC string validation

[1.0.7] - 2024-01-07#

  • Support pydantic v1 & v2
  • Updated dependencies

[1.0.6] - 2023-12-15#

  • Added wheel package testing to CI
  • Fixed incompatible dependencies

[1.0.5] - 2023-12-07#

  • Improved simhash performance
  • Added native dct and wtahash support
  • Added Python 3.12 support
  • Updated and relax dependencies

[1.0.4] - 2023-06-05#

  • Removed bases dependency
  • Fixed mkdocstrings
  • Updated dependencies

[1.0.3] - 2023-03-12#

  • Fix binary wheels

[1.0.2] - 2023-03-12#

  • Publish binary wheels

[1.0.1] - 2023-03-11#

  • Switch to standard bitarray module
  • Switch tests to latest environments
  • Add Python 3.11 support to TROVE classifiers

[1.0.0] - 2023-01-24#

  • ISO/CD 24138 v1 Release
  • Updateted dependencies

[0.2.14] - 2023-01-17#

  • Added ISO Reference documentation
  • Removed non-standard conformance tests
  • Fixed Meta-Code documentation
  • Improved documentation CSS

[0.2.13] - 2023-01-16#

  • Added documentation for options
  • Added python 3.11 support
  • Added Markdown formating
  • Added developmnet documentation
  • Updated architecture figures
  • Documentation cleanup
  • Improved example code
  • Optimized LF conversion
  • Updated dependencies

[0.2.12] - 2022-11-24#

  • Fixed issue with data url compound media types
  • Added ISCC version validation to iscc_validate
  • Added prefix check to iscc_normalize
  • Bundled fonts with documentation
  • Updated dependencies

[0.2.11] - 2022-07-03#

  • Add support for gracefull build failures

[0.2.10] - 2022-07-03#

  • Fix pip instalation is missing setuptools
  • Update mkdocs

[0.2.9] - 2022-07-03#

  • Added iscc_compare function
  • Optimized soft_hash_audio performance
  • Removed Cython from build requirements
  • Fixed api listing tool
  • Updated codec architecture figure
  • Updated dependencies

[0.2.8] - 2022-04-21#

  • Fixed bug with subtype for semantic code
  • Changed URI representation to upper case
  • Changed to disallow ISCC-ID creation from ISCC-IDs
  • Added line conversion tool
  • Removed source wheel distribution
  • Updated dependencies

[0.2.7] - 2022-04-16#

  • Fixed bug in iscc_id_incr_v0
  • Added support to accept ISCC-ID URI as input for iscc_id_incr_v0
  • Added guard against custom subtype in random ISCC-CODE generation.

[0.2.6] - 2022-04-13#

  • Added KY and MM to valid prefixes
  • Added support to check for compiled extension modules
  • Added universal wheel distribution

[0.2.5] - 2022-04-10#

  • Fixed missing jcs dependency
  • Added SubType NONE to MT.ISCC to distinquish from SUM
  • Added support for deterministic generation of random ISCC-CODEs
  • Added support for custom bit-sizes for random ISCC-CODEs
  • Moved changelog into separate file
  • Updated dependencies

[0.2.4] - 2022-03-19#

  • Updated dependencies
  • Added Flake.from_int and Flake.from_string
  • Made Flake comparable and hashable
  • Use standard hex encoded multihash for datahash and metahash

[0.2.3] - 2022-03-06#

  • Update to iscc-schema 0.3.3
  • Change image normalization instructions
  • Fix issue with exporting cdc cython only functions

[0.2.1] - 2022-03-03#

  • Cleanup and update dependencies
  • Fix bitarray api change
  • Fix developer commands

[0.2.0] - 2022-02-24#

  • Complete API refactoring
  • Use Data-URL as input for Meta-Code
  • Use wallet address for ISCC-ID creation
  • Added new Flake-Code (distributed time/random ID)
  • Replaced assertions with exeptions
  • Use secure random functions
  • Retired Python 3.6 support (EOL)
  • Return simple dict objects from generator functions
  • Added ISCC string validation
  • Added multiple helper functions

[0.1.9] - 2021-12-17#

  • Added warning on non-standard options
  • Added multiformats support
  • Added uri representation
  • Removed redundant cdc_avg_chunk_size option
  • Updated codec format documentation

[0.1.8] - 2021-12-12#

  • Added conformance tests for all top level functions
  • Added conformance tests to source dir
  • Added conformance module with selftest function
  • Changed gen_image_code to accept normalized pixels instead of stream
  • Changed opts to core_opts
  • Removed image pre-processing and Pillow dependency
  • Fixed readability of conformance tests
  • Fixed soft_hash_video_v0 to accept non-tuple sequences
  • Updated example code

[0.1.7] - 2021-12-09#

  • Add dotenv for enviroment based configuration
  • Cleanup package toplevel imports
  • Return schema objects for iscc_code and iscc_id
  • Exclude unset and none values from result dicts
  • Add support for multiple code combinations for ISCC-CODE
  • Add support for ISCC-ID based on singular Instance-Code
  • Add initial conformance test system

[0.1.6] - 2021-11-29#

  • Show counter for ISCC-ID in Code.explain

[0.1.5] - 2021-11-28#

  • Fix documentation
  • Change metahash creation logic
  • Refactor models
  • Add Content-Code-Mixed
  • Add ISCC-ID
  • Refactor compose to gen_iscc_code
  • Refactor models to schema

[0.1.4] - 2021-11-17#

  • Simplified options
  • Optimize video WTA-hash for use with 64-bit granular features

[0.1.3] - 2021-11-15#

  • Try to compile Cython/C accelerator modules when installing via pip
  • Simplify soft_hash api return values
  • Add .code() method to InstanceHasher, DataHasher
  • Remove granular fingerprint calculation
  • Add more top-level imports

[0.1.2] - 2021-11-14#

  • Export more functions to toplevel
  • Return schema driven objects from ISCC code generators.

[0.1.1] - 2021-11-14#

  • Fix packaging problems

[0.1.0] - 2021-11-13#

  • Initial release