Create changelog and make sure it gets added to the release assets

.github/workflows/release.yml

@@ -151,7 +151,7 @@ jobs:
           staging="mos-${{ env.RELEASE_VERSION }}-${{ matrix.target }}"
           mkdir -p "$staging"
 
-          cp {LICENSE,README.md} "$staging/"
+          cp {CHANGELOG.md,LICENSE,README.md} "$staging/"
           cp -R examples "$staging/"
 
           if [ "${{ matrix.os }}" = "windows-2019" ]; then

CHANGELOG.md

@@ -0,0 +1,65 @@
+# Changelog
+
+## 0.6.0 (2021-06-02)
+
+### New features
+* Support for writing unit tests
+* Support for running unit tests in an emulated 6502
+* Support for running and debugging unit tests from within Visual Studio Code
+* Symbols may be annotated with markdown comments, which will show on hover
+
+### Bugfixes
+* Various scoping issues have been resolved
+
+## 0.5.0 (2021-05-25)
+
+### New features
+* Support for debugging in Visual Studio Code (via the Debug Adapter protocol)
+* Formatting now works with label/code/comment columns
+* Can now use - and + to refer to start and end of scopes
+* Visual Studio Code: Now provides a 'build' task and associated problem matcher
+
+### Bugfixes
+* Fixed a number of edge cases related to code completion
+* Code completion doesn't seem to work inside a (segment) block
+* Fix forward references to other segments
+* Fix infinite loop with label before end of block
+* Formatting: No empty lines after a non-block label
+* Formatting: Empty line after a block
+* C/C++-style comments are not highlighted nicely
+* LSP not shutting down correctly
+* Error output is not sorted by line/file
+
+## 0.4.1 (2021-03-26)
+
+### Bugfixes
+* Formatting now works correctly for projects containing multiple files
+
+## 0.4.0 (2021-03-24)
+
+## 0.3.1 (2021-03-21)
+
+### Bugfixes
+* Linux version now shows correct version information
+
+## 0.3.0 (2021-03-16)
+
+### New features
+* Support for macros
+* Support for loops
+* Can now use `-` and `+` to refer to start and end of scopes
+* Visual Studio Code: Now provides a 'build' task and associated problem matcher
+
+### Bugfixes
+* Rewrote code generation to be both simpler and more accurate
+* The `no-color` parameter now works as expected
+
+## 0.2.0 (2021-03-11)
+
+### New features
+* Project configuration file is now required in lieu of command-line arguments
+* Language Server support
+
+## 0.1.0 (2021-02-22)
+
+First public alpha release!