Under the hood
The data-transport layer gained backpressure detection and refusal callbacks instead of always resending
What
The internal channel/frame allocator that manages data transport (its allocate, transmit, and free operations) now supports:
- an
onRefusedcallback that can run per allocation - backpressure detection (
isBackedUp) checked before resending data - tracking of orphaned sequences when an allocation is freed
- a
resendflag on transmit, instead of the previous model of always resending
Why
This makes the underlying transport more resilient: it can now detect when it's sending faster than the other side can handle (backpressure) and react to refused sends, rather than blindly resending every time.