The latest (tip-of-tree) protocol changes frequently and may break at any time. However it captures the full capabilities of the Protocol, whereas the stable release is a subset. There is no backwards compatibility support guaranteed for the capabilities it introduces.
Latest browser_protocol.json version updated:
Date: 2025-07-23 04:34:18 +0000
Latest js_protocol.json version updated:
Date: 2025-04-26 04:29:56 +0000