0e5b1ea297
Fastcomp backend was introduced here: 14b18697e6
Emscripten changelog: https://emscripten.org/docs/introducing_emscripten/release_notes.html?highlight=2.0.0:%2008/10/2020
Emscripten issue: https://github.com/emscripten-core/emsdk/pull/590
Updated CHANGELOG.txt