Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Cloud SessionsArea: what it touches
Internal ChangesKind: in v2.1.265,
Internal ChangesSection of the release
Unclear What effect controlOnly: true has on an opened session, or when it is set, is not described in the finding.
What
Sessions and their control/event channel gained a controlOnly mode, threaded through from session-open callers down to the low-level session-open call (defaulting to unset/false).
SessionsV2Client appends control_only=1 to the session events stream URL when configured with controlOnly, letting a connection subscribe to control messages only, without the full event stream.
When a session is opened via attach, the emitted "opened" payload conditionally includes controlOnly: true.
Why
This lets a client connect to a session just to receive control messages, without also receiving the full event stream, which is more efficient when only control signaling is needed.
