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+title: Chickadee 0.6.0 released
+date: 2020-11-19 21:00:00
+tags: guile gamedev chickadee
+summary: Chickadee 0.6.0 has been released
+---
+
+I'm happy to announce that Chickadee 0.6.0 has been released!
+
+Chickadee is a game development toolkit for Guile.  Chickadee aims to
+provide all the features that parenthetically inclined game developers
+need to make 2D and 3D games in Scheme.
+
+As Chickadee is still alpha software, several breaking changes were
+introduced in this release.  Fortunately, the changes are mostly
+related to naming so upgrading an existing program to Chickadee 0.6.0
+should be fairly straightfoward.  Keep reading for the full scope of
+these changes.
+
+Notable improvements and changes:
+
+* Renamed `(chickadee render ...)` module namespace to `(chickadee
+  graphics ...)` so please update your `use-module` declarations!
+* New OpenGL 2 compatibility (previous releases required 3+)
+* `load-font` procedure now loads TrueType/OpenType font support via
+  FreeType (use `load-bitmap-font` to load AngelCode formatted bitmap
+  fonts now)
+* New, experimental vector path rendering API (see [Vector
+  Paths](/manuals/chickadee/Vector-Paths.html) in the manual)
+* Removed shapes module (use vector paths module instead)
+* New 3x3 transformation matrix data type
+* New OpenGL stencil test support
+* New OpenGL multisampling support
+* Improved OpenGL depth testing support
+* New `load-tileset` convenience procedure (see
+  [Textures](/manuals/chickadee/Textures.html) in the manual)
+* New `vec2=`, `vec3=`, and `vec2-cross` procedures in `(chickadee
+  math vector)` module
+* New `elapsed-time` procedure in `(chickadee)` module
+* Small tweaks to `(chickadee graphics tiled)` module (updates to
+  `draw-tile-map` calls required, see [Tile
+  Maps](/manuals/chickadee/Tile-Maps.html) in the manual)
+* Removed unnecessary `scancode` argument from key press/release
+  hooks
+* New polling support for agendas via `call-when` and `wait-until`
+  procedures (see [Scripting](/manuals/chickadee/Scripting.html) in
+  the manual)
+
+Bug fixes:
+
+* Fixed bug in `heap-remove!` that was making agendas behave very incorrectly
+* Fixed bug in `array-list-delete!` that was holding onto references
+  to deleted objects
+* Fixed bugs in `rect-union`, `rect-inflate`, and `rect-clip`
+* Fix bugs with viewports and framebuffers in relation to screen clearing
+
+source tarball: <https://files.dthompson.us/chickadee/chickadee-0.6.0.tar.gz>
+
+signature: <https://files.dthompson.us/chickadee/chickadee-0.6.0.tar.gz.asc>
+
+See the [Chickadee project page](/projects/chickadee.html) for more
+information.
+
+Bug reports, bug fixes, feature requests, and patches are welcomed.
+
+Have fun!
+
+P.S. - If you make something with Chickadee, feel free to share it
+with me via email or [Mastodon](https://toot.cat/@dthompson).  I'd
+love to see what people are doing with this library and get feedback
+about what to prioritize for future releases.