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Revision history for Perl extension CBOR::XS

TODO: pack_keys?
TODO: document encode_cbor_sharing?
TODO: large negative integers
TODO: type cast tests.
TODO: round-tripping of types, such as float16 - maybe types::Serialiser support?
TODO: possibly implement https://peteroupc.github.io/CBOR/extended.html, but NaNs are nonportable. rely on libecb?
TODO: https://github.com/svaarala/cbor-specs/blob/master/cbor-nonutf8-string-tags.rst, but maybe that is overkill?

1.87 Fri 08 Sep 2023 22:14:18 CEST
        - shared references were not decoded correctly: instead of getting
          multiple references to the same object, you got the same
          reference to the same object, causing a number of issues. For
          example, modifying the reference would modify all places the
          reference was used, and encoding the decoded structure would
          unshare the previously shared hashes, as trheir reference count
          would be 1. Fixing this was rather involved, as perl lacks the
          ability to easily swap or copy arrays and hashes.
	- \0, \1, \undef do not work, and were not intended to ever work, as
          special values, despite being mentioned in the documentation (reported
          by nuclightq).
        - new feature: allow_weak_cycles.

1.86 Thu 04 Nov 2021 17:48:16 CET
	- fixed a wrong printf format specifier (reported by Petr Písař).

1.85 Sat 23 Oct 2021 04:59:56 CEST
	- left debugging printf in code, need a test for that :(

1.84 Thu 21 Oct 2021 03:11:52 CEST
	- fix a bug in validate_utf8 where we call perl's is_utf8_string with
          a lenght of zero for empty strings, but perl interprets that as
          "calculate length", causing spurious validation errors for
          empty strings.
	- include validate_utf8 in new_safe.
	- avoid some warnings.

1.83 Tue Dec  8 09:27:06 CET 2020
	- add CBOR::XS::as_map cast function.

1.82 Tue Dec  1 02:47:40 CET 2020
	- add CBOR::XS::as_bool cast function.

1.81 Mon Nov 30 19:29:33 CET 2020
	- cast functions were broken due to last-minute renaming. thats
          what you get for not having a tessuite.
	- Math::BigInt and Math::BigFloat are pretty broken (again),
          so disable some tests. (try printing the bigfloat
          799999999999999999998E99999999999999999998).

1.8  Sun Nov 29 22:35:13 CET 2020
	- experimental support for some type casts, as well as embedding
          raw cbor data.

1.71 Thu Nov 15 20:52:13 CET 2018
	- work around what smells like a perl bug w.r.t. exceptions
          thrown in callbacks.
	- update libecb.

1.7  Tue Jun 27 04:02:23 CEST 2017
	- SECURITY FIX: fix two bugs found by american fuzzy lop,
          upgrade is advised if you accept data from untrusted
          sources.
        - an out-of bound sharedref or stringref index could cause an
          out of bounds access - might be exploitable.
        - a decoding error during indefinite array or hash decoding
          could cause an endless loop.

1.6  Wed Dec  7 15:13:23 CET 2016
        - greatly expand the SECURITY IMPLICATIONS and similar sections.
        - new constructor new_safe, to create a secure CBOR::XS object.
        - new option forbid_objects, to disallow serialisation.
        - new CBOR::XS::safe_filter functionality.
        - fix a crash when decoding a cyclic data structure using
          stringref/pack_strings when allow_cycles is disabled.