add a changelog

CHANGELOG.md

@@ -0,0 +1,32 @@
+opustags changelog
+==================
+
+1.2.0 - TBA
+-----------
+
+This is the biggest release for opustags. The whole code base was reviewed for robustness and
+clarity. It doesn't offer new features, but fixes a few bugs and improves error reporting.
+
+The program is now built as C++14, and the code refactored without sacrificing the original
+simplicity. It is shipped with a new test suite for preventing regressions.
+
+1.1.1 - 2018-10-24
+------------------
+
+- Mac OS X support.
+- Tolerate but truncate the data in the OpusTags packet past the comments.
+
+1.1 - 2013-01-02
+----------------
+
+- Add the --in-place option.
+- Fix a bug is --set-all where the last unterminated line was ignored.
+- Remove broken output files on failure.
+
+1.0 - 2013-01-01
+----------------
+
+This is the first release of opustags. It supports all the main feature for basic tag editing.
+
+It was written in a day, and the code is quick and dirty, though the program is simple and
+efficient.