The search for a "proper report" on in the context of "lifestyle and entertainment" reveals that this is a community-driven project aimed at bringing modern Minecraft features to browser-based gameplay.
This is the most controversial question. It is a clean-room reverse-engineered client that uses custom assets if you provide them. However: eaglercraft 120 1 hot
The 1.12.1 version is considered "hot" right now for two main reasons: Eaglercraft 1