New this build: support for Amazon Appstore packaged apps. Previously to publish to the Amazon Appstore you had to have a web-hosted project and provide the URL to the Amazon Appstore. However now the Amazon Appstore accepts packaged apps where they host the files for you, saving you from having to find a host. Simply zip the resulting files and upload them in the 'App files' section of the Amazon developer dashboard (after choosing the 'ZIP' option).
There are a few other fixes in this build, and an optimisation for destroying lots of objects. We're due a stable update soon so please test carefully and report any issues you find to the Bugs forum following all the guidelines. If all is well then r190 will be the next stable release.