Release 0.6.0

It's a major release where we drop Python 2 support entirely.
The most significant changes are:

• Removed support for EOL Python 2.7, 3.6, 3.7
• Added support for previously missing RELATIVE-OID construct
• Updated link to Layman's Guide

All changes are noted in the CHANGELOG.

Release 0.5.1

It's a minor release.

• Added support for PyPy 3.10 and Python 3.12
• Updated RTD configuration to include a dummy index.rst redirecting to contents.html, ensuring compatibility with third-party documentation and search indexes.
• Fixed the API breakage wih decoder.decode(substrateFun=...).
  A substrateFun passed to decoder.decode() can now be either v0.4 Non-Streaming or v0.5 Streaming.
  pyasn1 will detect and handle both cases transparently.
  A substrateFun passed to one of the new streaming decoders is still expected to be v0.5 Streaming only.

All changes are noted in the CHANGELOG.

Release 0.5.0

It's a major release. The most important changes are:

• PyPI package ownership for pyasn1 and pyasn1-module has been transferred to Christian Heimes and Simon Pichugin in PyPI support ticket #2090.
• The upstream repositories for pyasn1 and pyasn1-modules are now in the GitHub organization https://github.com/pyasn1/.
• Modernized packaging and testing. pyasn1 now uses setup.cfg, pyproject.toml, build, and GitHub Actions.
• Make BER/CER/DER decoders streaming and suspendible
• Added support for Python 3.8, 3.9, 3.10, 3.11
• Removed support for EOL Pythons 2.4, 2.5, 2.6, 3.2, 3.3, 3.4, 3.5
• Added support for PyPy 3.7, 3.8, 3.9

All changes are noted in the CHANGELOG.