f forgot manual-broadcast, one backported fix, and add added note about relay

Author: TheBlueMatt

CHANGELOG.md

@@ -37,11 +37,14 @@
    `Event::PersistStaticInvoice`s and `Event::StaticInvoiceRequested`s.
  * Zero-Fee-Commitment channels are now supported in LDK. These channels remove
    force-closure risk for feerate disagreements by using a fixed, zero fee on
-   presigned transactions, relying on anchor bumps instead. This only works with
-   LDK peers, and feature signaling may change in a future version of LDK,
-   breaking compatibility. This is negotiated automatically for
-   manually-accepted inbound channels and negotiated for outbound channels based
-   on `ChannelHandshakeConfig::negotiate_anchor_zero_fee_commitments`.
+   presigned transactions, relying on anchor bumps instead. They also utilize
+   the new TRUC policy in Bitcoin Core 29 to substantially improve the lightning
+   security model. This requires having a path of Bitcoin Core 29+ nodes between
+   you and a miner for transactions to be mined. This only works with LDK peers,
+   and feature signaling may change in a future version of LDK, breaking
+   compatibility. This is negotiated automatically for manually-accepted inbound
+   channels and negotiated for outbound channels based on
+   `ChannelHandshakeConfig::negotiate_anchor_zero_fee_commitments`.
  * `Event::BumpTransaction` is now always generated even if the transaction has
    sufficient fee. This allows you to manage transaction broadcasting more
    granularly for anchor channels (#4001).
@@ -92,6 +95,11 @@
  * `Persist` now takes a `MonitorName` rather than a `funding_txo` `OutPoint` to
    ensure the storage key is consistent across splices (#3569).
  * `lightning-liquidity` now supports persisting relevant state (#4059, #4118).
+ * `ChannelManager::funding_transaction_generated_manual_broadcast` was added to
+   open a channel without automatically broadcasting the funding transaction
+   (#3838). In it and `unsafe_manual_funding_transaction_generated`
+   force-closure logic has been updated to no longer automatically broadcast the
+   commitment tx unless the funding transaction has been seen on-chain (#4109).
  * Various instances of channel closure which provided a
    `ClosureReason::HolderForceClosed` now provide more accurate
    `ClosureReason`s, especially `ClosureReason::ProcessingError` (#3881).
@@ -132,6 +140,9 @@
    force-closed (#3989).
  * `lightning-liquidity`'s service support now properly responds to the
    `ListProtocols` message (#3785).
+ * A rare race which might lead `PeerManager` (and `lightning-net-tokio`) to
+   stop reading from a peer until a new message is sent to that peer has been
+   fixed (#4168).
  * The fields in `SocketAddress::OnionV3` are now corectly parsed, and the
    `Display` for such addresses is now lowercase (#4090).
  * `PeerManager` is now more conservative about disconnecting peers which aren't