Developers should be aware that between the Browser Preview and public launch of WebAssembly, there will be at least one breaking change which will require developers to update their toolchain and binaries. These changes will be announced ahead of time and are listed below.
In addition to processing feedback during the Browser Preview, the WebAssembly community group and contributors plan to:
0x1(at which point the version will be frozen and all new features will be added in a backwards-compatible manner, and be detected through feature-testing).
As we receive significant user feedback, other items may be added here, or to the future features list.