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@alexlarsson alexlarsson released this 26 Sep 13:24
· 362 commits to main since this release
v1.0.0
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alexlarsson Alexander Larsson
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Learn about vigilant mode.
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Learn about vigilant mode.

This is the first stable release of composefs. Starting now, we
guarantee a stable library ABI and a binary stable file format. The
later means that any image build from an identical lcfs_node tree and
identical write options, will produce a file that is binary identical
to a later run even with a different version. The same is true for
a mkcomposefs run with the same options.

Major changes since 0.1.4:

  • Added a soname with version to libcomposefs

  • All required overlayfs xattr changes are now upstream and the
    corresponding image generation changes have been made in
    composefs. This includes support for escaping overlayfs xattrs and
    whiteouts for nested overlayfs mounts.

  • fs-verity built-in signature support was dropped in favour of
    userspace signatures.

  • The erofs images now uses the new bloom filter for faster xattr
    lookups. This is backward compatible and old erofs version still
    work (sans the speedup).

  • Files can now be inlined in the erofs image to avoid overhead of
    using redirections for small files.

  • There is a new API to regenerate a lcfs_node tree from a composefs
    image file.

  • There is a new composefs-info tool that lets you dump info about
    images, including what objects it refers to and which ones are
    missing from a given basedir.

  • Various fixes, cleanups and new tests

Signed-off-by: Alexander Larsson [email protected]

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