# News ## Version 0.7.2 *released Sun, 23 Feb 2025* Single-bugfix release: fixed the typing stub module. Nothing exercised it, and having been generated with pre-3.6 stubgen, it failed to work on modern versions. No tests failed (should add some), but the doc build by Sphinx failed accidentally since the failure to import (which was ignored) led to a missing title for the module, which Sphinx complained about. Quite funny :) ## Version 0.7.1 *released Fri, 14 Feb 2025* Minor version, with a few test improvements, and updated documentation building dependencies. No user-visible changes otherwise. Tested with CPython versions 3.7-3.13, and PyPy 3.7-3.10. ## Version 0.7.0 *released Sun, 23 Apr 2023* Important: Python 3.7 is the minimum supported version, due to difficulty of testing old releases, and the fact that everything older has been deprecated a long time ago (e.g. 3.6 at the end of 2021). Otherwise, a minor release: - Improve error handling in some corner cases (not expected to have any real-life impact, but who knows). - Improved testing coverage and test infrastructure. - Modernise parts of the C code based on recent Python version guidelines. - Add a simple security policy and contribution guidelines. ## Version 0.6.0 *released Sun, 29 Nov 2020* Major release removing Python 2 support. This allow both code cleanup and new features, such as: - Support for pathlib objects in `apply_to` and `has_extended` functions when running with Python 3.6 and newer. - Use of built-in C API functions for bytes/unicode/pathlib conversion when dealing with file names, removing custom code (with the associated benefits). Important API changes/bug fixes: - Initialisation protocol has been changed, to disallow uninitialised objects; this means that `__new__` will always create valid objects, to prevent the need for checking initialisation status in all code paths; this also (implicitly) fixes memory leaks on re-initialisation (calling `__init__(…)` on an existing object) and segfaults (!) on non-initialised object attribute access. Note ACL re-initialisation is tricky and (still) leads to undefined behaviour of existing Entry objects pointing to it. - Fix another bug in ACL re-initialisation where failures would result in invalid objects; now failed re-initialisation does not touch the original object. - Restore `__setstate__`/`__getstate__` support on Linux; this was inadvertently removed due a typo(!) when adding support for it in FreeBSD. Pickle should work again for ACL instances, although not sure how stable this serialisation format actually is. - Additionally, slightly change `__setstate__()` input to not allow Unicode, since the serialisation format is an opaque binary format. - Fix (and change) entry qualifier (which is a user/group ID) behaviour: assume/require that uid_t/gid_t are unsigned types (they are with glibc, MacOS and FreeBSD at least; the standard doesn't document the signedness), and convert parsing and returning the qualifier to behave accordingly. The breakage was most apparent on 32-bit architectures, in which context the problem was originally reported (see issue #13). Minor improvements: - Added a `data` keyword argument to `ACL()`, which allows restoring an ACL directly from a serialised form (as given by `__getstate__()`), which should simplify some uses cases (`a = ACL(); a.__set state__(…)`). - When available, add the file path to I/O error messages, which should lead to easier debugging. - The test suite has changed to `pytest`, which allows increased coverage via parameterisation. ## Version 0.5.4 *released Thu, 14 Nov 2019* Maintenance release: - Switch build system to Python 3 by default (can be overridden if needed). - Internal improvements for better cpychecker support. - Fix compatibility with PyPy. - Test improvements (both local and on Travis), testing more variations (debug, PyPy). - Improve test coverage, and allow gathering test coverage results. - Drop support (well, drop testing) for Python lower than 2.7. - Minor documentation improvements (closes #9, #12). ## Version 0.5.3 *released Thu, 30 Apr 2015* FreeBSD fixes: - Enable all FreeBSD versions after 7.x at level 2 (thanks to Garrett Cooper). - Make test suite pass under FreeBSD, which has a stricter behaviour with regards to invalid ACLs (which we do exercise in the test suite), thanks again to Garret for the bug reports. ## Version 0.5.2 *released Sat, 24 May 2014* No visible changes release: just fix tests when running under pypy. ## Version 0.5.1 *released Sun, 13 May 2012* A bug-fix only release. Critical bugs (memory leaks and possible segmentation faults) have been fixed thanks to Dave Malcolm and his ``cpychecker`` tool. Additionally, some compatibility issues with Python 3.x have been fixed (str() methods returning bytes). The documentation has been improved and changed from epydoc to sphinx; note however that the documentation is still auto-generated from the docstrings. Project reorganisation: the project home page has been moved from SourceForge to GitHub. ## Version 0.5 *released Sun, 27 Dec 2009* Added support for Python 3.x and improved support for Unicode filenames. ## Version 0.4 *released Sat, 28 Jun 2008* ### License Starting with this version, pylibacl is licensed under LGPL 2.1, Febryary 1999 or any later versions (see README.rst and COPYING). ### Linux support A few more Linux-specific functions: - add the ACL.equiv_mode() method, which will return the equivalent octal mode if this is a basic ACL and raise an IOError exception otherwise - add the acl_extended(...) function, which will check if an fd or path has an extended ACL ### FreeBSD support FreeBSD 7.x will have almost all the acl manipulation functions that Linux has, with the exception of __getstate__/__setstate__. As a workaround, use the str() and ACL(text=...) methods to pass around textual representations. ### Interface At module level there are now a few constants exported for easy-checking at runtime what features have been compiled in: - `HAS_ACL_FROM_MODE`, denoting whether the ACL constructor supports the `mode=0xxx` parameter - `HAS_ACL_CHECK`, denoting whether ACL instances support the `check()` method - `HAS_ACL_ENTRY`, denoting whether ACL manipulation is possible and the Entry and Permset classes are available - `HAS_EXTENEDED_CHECK`, denoting whether the `acl_extended()` function is supported - `HAS_EQUIV_MODE`, denoting whether ACL instances support the `equiv_mode()` method ### Internals Many functions have now unittests, which is a good thing. ## Version 0.3 *released Sun, 21 Oct 2007* ### Linux support Under Linux, implement more functions from libacl: - add `ACL(mode=...)`, implementing `acl_from_mode`. - add `ACL.to_any_text()`, implementing `acl_to_any_text`. - add ACL comparison, using `acl_cmp`. - add `ACL.check()`, which is a more descriptive function than validate.
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