docs: update release notes

docs/release-notes/release-notes-0.18.0.md

@@ -342,14 +342,6 @@ bitcoin peers' feefilter values into account](https://github.com/lightningnetwor
   add coin selection strategy option to the following on-chain RPC calls
   `EstimateFee`, `SendMany`, `SendCoins`, `BatchOpenChannel`, `SendOutputs`, and `FundPsbt`.
 
-* Previously when callng `SendCoins`, `SendMany`, `OpenChannel` and
-  `CloseChannel` for coop close, it is allowed to specify both an empty
-  `SatPerVbyte` and `TargetConf`, and a default conf target of 6 will be used.
-  This is [no longer allowed](
-  https://github.com/lightningnetwork/lnd/pull/8422) and the caller must
-  specify either `SatPerVbyte` or `TargetConf` so the fee estimator can do a
-  proper fee estimation.
-
 * `BumpFee` has been updated to take advantage of the [new budget-based
   sweeper](https://github.com/lightningnetwork/lnd/pull/8667). The param
   `force` has been deprecated and replaced with a new param `immediate`, and a
@@ -421,6 +413,18 @@ bitcoin peers' feefilter values into account](https://github.com/lightningnetwor
   manage the lifecycle of the inputs.
 
 ## Breaking Changes
+
+* Previously when callng `SendCoins`, `SendMany`, `OpenChannel` and
+  `CloseChannel` for coop close, it is allowed to specify both an empty
+  `SatPerVbyte` and `TargetConf`, and a default conf target of 6 will be used.
+  This will [no longer be
+  allowed](https://github.com/lightningnetwork/lnd/pull/8422) in the next
+  release (v0.19.0) and the caller must specify either `SatPerVbyte` or
+  `TargetConf` so the fee estimator can do a proper fee estimation. For current
+  release, [an error will be
+  logged](https://github.com/lightningnetwork/lnd/pull/8693) when no values are
+  specified.
+
 ## Performance Improvements
 
 * Watchtower client DB migration to massively [improve the start-up