diff --git a/quest/m0/release-backports/README.md b/quest/m0/release-backports/README.md
index 723070da2d1..b9e0cc443d5 100644
--- a/quest/m0/release-backports/README.md
+++ b/quest/m0/release-backports/README.md
@@ -48,7 +48,6 @@ findings; expanding this shortlist needs a separate scope decision.
 ## Required
 
 - [JS input parsing](/quest/m0/release-backports/parsing.md) - malformed certificates and paths cannot trigger disproportionate parsing work
-- [FFI cancellation](/quest/m0/release-backports/ffi-cancellation.md) - cancelled reads and accepts leave the next event for the next caller
 
 ## Related
 
diff --git a/quest/m0/release-backports/ffi-cancellation.md b/quest/m0/release-backports/ffi-cancellation.md
deleted file mode 100644
index 87ca93ef3bb..00000000000
--- a/quest/m0/release-backports/ffi-cancellation.md
+++ /dev/null
@@ -1,36 +0,0 @@
-# [M] Backport cancellation-safe FFI reads and accepts
-
-## Goal
-
-On the current release line, cancelling a foreign read or accept cannot
-consume the next frame or incoming session. Existing synchronous server
-cancellation still releases its listener without deadlocking, and runtime
-shutdown remains safe. Published signatures and wire behavior stay intact.
-
-## Plan
-
-Decided 2026-10-22 (maintainer): include the paired fixes from
-[moq-dev/moq#5140](https://github.com/moq-dev/moq/pull/5140) and
-[moq-dev/moq#5172](https://github.com/moq-dev/moq/pull/5172) in the focused
-backports. Treat read and accept cancellation together because the server's
-synchronous cancellation constrains how its pending accept is driven.
-
-Release 36f392f492 still spawns Task::run work independently. UniFFI's foreign
-cancel stops polling before the future is freed, so spawned work can keep
-running and take an event during that interval. Reproduce through the actual
-UniFFI cancel/free boundary, including delivery between cancellation and
-freeing; merely dropping a Rust future does not establish the contract.
-
-Port ownership of pending operations from the two fixes while retaining the
-release runtime and listener APIs. Preserve bounded incoming-request storage,
-listener release during a parked accept, and synchronization with runtime
-shutdown. Do not import main's later worker-pool or transport redesigns.
-Cover read/accept cancellation, the next caller's event, server cancellation,
-and runtime shutdown with deterministic synchronization. Run affected binding
-checks and just test interop --all in addition to the release gate. The
-consumers are existing foreign-language readers and native binding servers;
-no wrapper migration or new API is intended.
-
-## Related
-
-- [Draining shutdown](/quest/m0/ffi-shutdown-backport.md) - coordinate overlapping FFI files while keeping its additive drain API in its own backport