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+v4.10 (2023-01-29)
+==================
+
+Fixes:
+
+* format: plug a memory leak relating to func_entry_clone
+* Resolve mingw build failure
+
+
+v4.9 (2023-01-23)
+=================
+
+Enhancements:
+
+* socket: add sockaddr_is_local, ipaddr_is_local functions
+
+Fixes:
+
+* format: avoid return value truncation from HXformat_aprintf, HXformat_sprintf
+* format: avoid calling HXmc_length on a non-hxmc object
+* format: add new variations of printf functions returning ssize_t
+* Resolve Coverity-SCAN reports
+
+
+v4.8 (2022-12-03)
+=================
+
+Enhancements:
+
+* io: call posix_fadvise when slurping files
+
+Fixes:
+
+* io: fix garbling of slurped data when read from an unknown-size source
+
+
+v4.7 (2022-10-21)
+=================
+
+Enhancements:
+
+* string: new quoting modes HXQUOTE_BASE64URL & HXQUOTE_BASE64IMAP
+
+Fixes:
+
+* socket: make HX_socket_from_env functional on OpenBSD
+
+
+v4.6 (2022-06-27)
+=================
+
+Enhancements:
+
+* HX_slurp_fd/HX_slurp_file now supports reading from files reporting their
+  own size as 0 (e.g. ttys, /proc special files).
+
+
+v4.5 (2022-04-10)
+=================
+
+Fixes:
+
+* Resolve a number of cov-scan reported warnings.
+
+
+v4.4 (2022-03-15)
+=================
+
+Fixes:
+
+* Build fixes for the mingw environment.
+
+
+v4.3 (2022-03-14)
+=================
+
+Enhancements:
+
+* string: New functions ``HX_strtoull_sec``, ``HX_unit_seconds`` for converting
+  between second-based time durations and human-readable durations like
+  129600 <-> 1d12h.
+* io: New function ``HX_sendfile``.
+* io: raise buffer size for ``HX_copy_file`` from 1 kiB to 64 kiB
+
+
+v4.2 (2021-10-17)
+=================
+
+Enhancements:
+
+* string: New functions ``HX_strtod_unit``, ``HX_strtoull_unit``,
+  ``HX_unit_size``, ``HX_unit_size_cu`` for converting between
+  sizes and human-readable sizes like 1457664 <-> "1.45M"/"1.39M".
+
+
+v4.1 (2021-10-13)
+=================
+
+Fixes:
+
+* io: fix a use-after-free in conjunction with HX_realpath /
+  fix missing NULLing of a pointer within HX_readlink
+
+
+v4.0 (2021-10-03)
+=================
+
+Enhancements:
+
+* lib: add ``HX_slurp_fd``, ``HX_slurp_file``
+* proc: add ``HXproc_switch_user``
+* proc: add ``HXproc_top_fd``
+* socket: add ``HX_socket_from_env``
+* opt: add ``HXOPT_KEEP_ARGV`` flag
+
+Fixes:
+
+* proc: re-close pipes when ``HXproc_build_pipes`` failed
+
+
+v3.26 (2021-08-03)
+==================
+
+Fixes:
+
+* io: cure a potential infinite loop on EOF with HXio_fullread()
+* io: HXio_fullread() now returns actual bytes read rather than bytes requested
+* time: rectified HX_timeval_sub producing wrong results
+
+Changes:
+
+* nullptr checks were added to HXshconfig_free, HXformat_free, HXdeque_free and
+  HXmap_free to make their behavior be in line with free(3).
+* Documentation has been switched to reStructured Text.
+
+
+v3.25 (2020-05-14)
+==================
+
+Fixes:
+
+* string: fix out-of-bounds access when calling ``HX_strlcpy(x,y,0)``
+
+Changes:
+
+* string: ``HX_split4`` renamed to ``HX_split_inplace``
+* string: ``HX_split5`` renamed to ``HX_split_fixed``
+* defs.h: removed partially implementation of ``FIELD_SIZEOF``
+* defs.h: removed custom ``offsetof`` definition; you will need to include
+  ``<stddef.h>`` or ``<cstddef>`` now.
+
+
+v3.24 (2018-10-17)
+==================
+
+Fixes:
+
+* defs: avoid compiler warning when using ``HX_list_for_each`` in C++
+* opt: synchronize ``HXOPT_AUTOHELP`` C behavior to C++ mode
+
+
+v3.23 (2018-08-28)
+==================
+
+Enhancements:
+
+* opt: the option parser now recognizes long option abbreviations
+* io: use modern ``readdir`` rather than ``readdir_r``
+
+
+v3.22 (2014-08-25)
+==================
+
+Enhancements:
+
+* string: add the ``HXQUOTE_SQLBQUOTE`` quoting variant