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+# c-stdaux - Auxiliary macros and functions for the C standard library
+
+## CHANGES WITH 1.4.0:
+
+        * New compiler-builtin c_assume_aligned() allows hinting alignment
+          to the compiler and thus improving code generation. For targets
+          without such builtins, the function will be a no-op.
+
+        * A new set of memory-load operations is added: c_load_*()
+          This includes support for reading unaligned & aligned memory,
+          big-endian & little-endian data, and various standard sizes.
+          The helpers are basically a pointer cast to `uintX_t*` and a
+          dereference operation, but they guarantee that strict aliasing
+          rules, as well as alignment requirements are followed.
+
+        Contributions from: David Rheinsberg, Jan Engelhardt, Tom Gundersen
+
+        - Dußlingen, 2023-01-12
+
+## CHANGES WITH 1.3.0:
+
+        * Microsoft Windows is now supported as a target platform.
+
+        * The `C_COMPILER_*` and `C_OS_*` pre-processor constants now
+          allow identifying the used compiler as well as the target OS.
+
+        * The new `_c_always_inline_` annotation allows telling compilers
+          to inline a function unless technically not possible.
+
+        * Split c-stdaux.h into modules and include them from the root
+          header for backwards compatibility. Inclusion of the new modules
+          is guarded by the `C_COMPILER_*` and `C_OS_*` macros to prevent
+          them from being used on unspported platforms. A direct include
+          of the respective modules allows overriding that behavior.
+
+          The new modules provide the same functionality as before on the
+          previously supported linux platforms. With the support of other
+          platforms, individual modules might not be available, or generic
+          functions might provide a stub that provides the same runtime
+          behavior, but possibly with fewer diagnostics.
+
+        * Rework `c_assert()` to avoid context-expressions and instead use
+          the ternary-operator to check for the assertion.
+
+        * Improve `c_{un,}likely()` to support constant-folding as well as
+          -Wparantheses diagnostics if supported by the compiler. This adds
+          `_c_boolean_expr_()` as a helper to achieve this.
+
+        Contributions from: David Rheinsberg, Thomas Haller
+
+        - Dußlingen, 2022-12-15
+
+## CHANGES WITH 1.2.0:
+
+        * Add c_memcmp() as a safe wrapper around memcmp(3) that supports
+          empty arenas as NULL pointers.
+
+        * Add an API documentation renderer based on the sphinx docutils
+          suite. The documentation is available on readthedocs.org.
+
+        * Drop stdatomic.h from the public includes. This was not used by
+          any of the dependent projects, but breaks builds on older GCC
+          compilers. While this is technically an API break, no breakage
+          has been discovered in our tests, and thus we deemed it reasonable
+          to proceed without version bump.
+
+        Contributions from: David Rheinsberg, Thomas Haller
+
+        - Dußlingen, 2022-07-22
+
+## CHANGES WITH 1.1.0:
+
+        * Add c_memcpy() as a safe wrapper around memcpy(3) that supports
+          empty arenas as NULL pointers.
+
+        * Support building on MacOS-X.
+
+        * Rework the apidoc comments and properly document the entire API.
+
+        * Export 'version-scripts' configuration variable alongside the
+          existing 'cflags' variable. It defines whether c-stdaux was built
+          with GNU-linker version-scripts, or not. Dependent projects can
+          use this to decide whether to use version-scripts or not.
+          Additionally, the new 'version-scripts' meson-option allows
+          specifying whether to use version-scripts, auto-detect whether to
+          enable it, or disable it.
+
+        * Fix the export of `cflags` to also be exported in pkg-config, not
+          just meson subprojects.
+
+        * Avoid NULL-pointers in compile-time macros. This silences possible
+          false-positives from code sanitizers that otherwise trip over the
+          NULL pointer dereferences.
+
+        Contributions from: David Rheinsberg, Evgeny Vereshchagin
+
+        - Brno, 2022-06-22
+
+## CHANGES WITH 1.0.0:
+
+        * Initial release of c-stdaux.
+
+        Contributions from: David Rheinsberg, Lorenzo Arena, Michele Dionisio,
+                            Yuri Chornoivan
+
+        - Dußlingen, 2022-05-12