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Changelog

3.2.0 (2026-02-06)

  • New API using a context manager
    • Support for using Encoder via context manager
    • Support for encoding sequences via context manager
    • Support for encoding sets via context manager
    • Support for using Decoder via context manager
  • Add support of Python 3.14
  • New way of installing old versions of Python in the Docker file. As a consequence, all versions of Python including 2.7 and from 3.5 to 3.14 are now properly tested.

3.1.0 (2025-05-16)

  • #291 - Add support for mypy. As a consequence, the previous module has been migrated to a package.

3.0.1 (2025-05-02)

  • Fix #288 - Use DER encoding by default as in previous versions

3.0.0 (2025-03-03)

  • Encoding and decoding of the ASN.1 REAL type
  • Support of indefinite lengths
  • Encoding and decoding of complex data (lists, sets, ...)
  • Add support for streams (file-like objects) when encoding and decoding
  • Optionally return the number of unused bits when decoding a BitString (see also #276)
  • #286 - Add ASN.1:2008 compliance test suite

2.8.0 (2025-02-20)

  • PR #285 - Use Enum with Tag for pretty representation (thanks to @Julien00859)
  • Make explicit that Python 3.12 and 3.13 are supported
  • Fix some links in the documentation
  • Add a Docker file for testing

2.7.1 (2024-08-07)

  • Fix OID encoding/decoding for the first octet according to ITU-T X.690 (thanks to Ian Neal)

2.7.0 (2023-01-17)

  • Add context manager support (thanks to Mastermind-U)

2.6.0 (2022-07-15)

  • Add support for GeneralizedTime (thanks to vollkorntomate)

2.5.0 (2022-03-03)

  • Fixes to BitString decoding and encoding of IA5String and UTCTime (thanks to 0xbf00)

2.4.2 (2021-10-29)

  • Fix a minor mistake in the dump.py example
  • Add Python 3.9 and 3.10

2.4.1 (2020-07-16)

  • Fix #89 - Replace explicit references to enum34 by enum-compat

2.4.0 (2020-06-23)

  • Fix #21 - Invalid decoding in non-Universal classes
  • Fix #57 - Invalid encoding of non-Universal classes

2.3.1 (2020-04-06)

  • No change in code, only in packaging and in texts (README, ...)

2.3.0 (2020-04-05)

  • Tests: Replace nose by pytest
  • Add Python 3.8, remove Python 3.4 support
  • PR#26 (from rumbah): Add test for default (implicit) encoding types
  • PR#25 (from thomwiggers): Attempt to support BIT STRING
  • Fix wrong example code, see #27
  • (from jcrowgey) Makes the package usable with pip install
  • Remove support of Python 3.3 (some dependencies do not support 3.3)
  • PR#15 (from ThePlasmaRailgun) Fix parsing of object identifier
  • PR#10 (from robinleander): Allow user to determine decoding tagtype

2.2.0 (2017-10-30)

  • Use "true" enums instead of classes. Use enun34 backport for old Python versions.

2.1.1 (2017-10-30)

  • Fix a bug (#9): two's complement corner case with values such as -32769. Add new test cases to test them.

2.1.0 (2016-12-18)

  • Add more documentation
  • Use (simulated) enumerations
  • Add Python 2.6 in automated checks and tests
  • Add type hints (for static checking) and fix some code

2.0.0 (2016-12-16)

  • First public release by Sebastien Andrivet
  • Support both python 2 and 3 (with Python-Future)
  • All strings are now in unicode
  • Add more ASN.1 tags (like PrintableString)
  • Fix errors in the example (dump.py)
  • Code reorganization

0.9 (2011-05-18)

  • Initial public release by Geert Jansen