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Release 2.0.0 beta 2

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@FrancescAlted FrancescAlted released this 30 Aug 08:22
v2.0.0-beta.2
5debab2

Changes from 2.0.0-beta.1 to 2.0.0-beta.2

  • A new usermeta chunk in schunk allows to store arbitrary meta-information
    that is up to the user. If the schunk has an attached frame, the later
    will be updated accordingly too. For more info, see PR #74 and docstrings of
    new blosc2_update_usermeta() and blosc2_get_usermeta() functions.

  • Metalayers must now be attached to super-chunks, not frames. The reason is
    that frames are increasingly treated as a storage specifier (in-memory or
    disk now, but can be other means in the future), whereas the actual API for
    I/O (including metainfo) goes into super-chunks. See PR #75.

  • New frame format documented in
    README_FRAME_FORMAT.rst. Remember that the frame
    format is not written in stone yet, so some changes may be introduced before
    getting out of beta.

  • BREAKING CHANGE: the format for frames has changed and
    BLOSC2_VERSION_FRAME_FORMAT is now set to 1. There is no attempt to support
    previous formats, but there will probably be backward compatibility support
    starting from version 1 on.

  • BREAKING CHANGE: the next APIs have been renamed:

    • blosc2_frame_has_metalayer -> blosc2_has_metalayer
    • blosc2_frame_add_metalayer -> blosc2_add_metalayer
    • blosc2_frame_update_metalayer -> blosc2_update_metalayer
    • blosc2_frame_metalayer -> blosc2_get_metalayer

    Although the API was declared stable in beta.1, the fact that metalayers are
    attached now to super-chunks directly, made this change completely necessary.

  • BREAKING CHANGE: the next symbols have been renamed:

    • BLOSC_CPARAMS_DEFAULTS -> BLOSC2_CPARAMS_DEFAULTS
    • BLOSC_DPARAMS_DEFAULTS -> BLOSC2_DPARAMS_DEFAULTS
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