write a changelog

Yes - I, too, read https://keepachangelog.com/en/1.0.0/ in the past
year or so.

CHANGELOG.md

@@ -0,0 +1,52 @@
+# Changelog
+
+## Unreleased
+
+Bug fixed:
+
+ - The byte-order-mark `U+FEFF` (“the BOM”) is now treated as whitespace, as required by the KDLv1 spec ([#8]).
+
+Enhancement:
+
+ - The parser and emitter now support the [draft KDLv2 spec][kdl2-pr] if you explicitly enable this in the options:
+   * in __C__, pass `KDL_DETECT_VERSION` (for hybrid mode) or `KDL_READ_VERSION_2` (for v2 only) as a parse option to `kdl_create_*_parser()`, and set the `version` attribute of the struct `kdl_emitter_options` when creating the emitter.
+   * in __C++__, `parse()` and `to_string()` now take an optional argument of type `KdlVersion`.
+   * in __Python__, the `parse()` function and the `EmitterOptions` both take an optional argument `version`.
+   * the command line tools `ckdl-cat` and `ckdl-parse-events` take options `-1` and `-2` to specify the KDL version.
+
+Deprecations:
+
+ - The string escaping functions `kdl_escape` and `kdl_unescape` are deprecated. Use `kdl_escape_v` and `kdl_unescape_v` instead (the   `*_v` functions allow you to pass the KDL version).
+
+[#8]: https://github.com/tjol/ckdl/issues/8
+[kdl2-pr]: https://github.com/kdl-org/kdl/pull/286
+
+## v0.1.2 (2023-10-03)
+
+Bug fixed:
+
+ - `fals?` is no longer treated as a synonym for `false` ([#4]).
+
+Enhancement:
+
+ - `kdlpp` now can now be built as a shared library (so/dylib/DLL). ([#2], [#3]; thanks to [Artemis Everfree][@faithanalog]).  
+   This comes with the same caveat as for libkld: on Windows, you must define `KDLPP_STATIC_LIB` when you're linking statically before including `<kdlpp.h>`.
+
+[#2]: https://github.com/tjol/ckdl/pull/2
+[#3]: https://github.com/tjol/ckdl/pull/3
+[#4]: https://github.com/tjol/ckdl/pull/4
+[@faithanalog]: https://github.com/faithanalog
+
+## v0.1.1 (2022-10-19)
+
+Bugs fixed:
+
+ - The emitter can now emit the value `false` ([#1], thanks to [Erin][@erincandescent]).
+ - Emitter errors are now returned correctly.
+
+[#1]: https://github.com/tjol/ckdl/issues/1
+[@erincandescent]: https://github.com/erincandescent
+
+## v0.1 (2022-09-25)
+
+Initial release