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: 2026-08-15 04:37:29 +0000
Latest js_protocol.json version updated:
Date: 2026-08-12 05:00:19 +0000