diff --git a/docs/release-notes/release-notes-next.md b/docs/release-notes/release-notes-next.md
index 74a56ada..6e1c177c 100644
--- a/docs/release-notes/release-notes-next.md
+++ b/docs/release-notes/release-notes-next.md
@@ -15,6 +15,12 @@
   `ListReservations`, `InstantOut`, `InstantOutQuote`, or `ListInstantOuts`.
   [PR #1194](https://github.com/lightninglabs/loop/pull/1194)
 
+* Calling `NewStaticAddress` without `send_coins_request.addr` now derives and
+  returns a fresh receive address instead of reusing the address associated
+  with the client's L402. Integrations must not assume that repeated calls are
+  idempotent or return the same address.
+  [PR #1139](https://github.com/lightninglabs/loop/pull/1139)
+
 #### Bug Fixes
 
 * Loop Out requests now account for channel reserves when checking outbound
diff --git a/looprpc/client.proto b/looprpc/client.proto
index 36374957..c999b445 100644
--- a/looprpc/client.proto
+++ b/looprpc/client.proto
@@ -163,7 +163,9 @@ service SwapClient {
         returns (ListInstantOutsResponse);
 
     /* loop: `static newstaticaddress`
-    NewStaticAddress requests a new static address for loop-ins from the server.
+    NewStaticAddress derives a fresh static receive address on every request
+    without send_coins_request.addr, or funds an existing address when addr is
+    set.
     */
     rpc NewStaticAddress (NewStaticAddressRequest)
         returns (NewStaticAddressResponse);
diff --git a/looprpc/client.swagger.json b/looprpc/client.swagger.json
index 15ff61af..856f5072 100644
--- a/looprpc/client.swagger.json
+++ b/looprpc/client.swagger.json
@@ -870,7 +870,7 @@
     },
     "/v1/staticaddr": {
       "post": {
-        "summary": "loop: `static newstaticaddress`\nNewStaticAddress requests a new static address for loop-ins from the server.",
+        "summary": "loop: `static newstaticaddress`\nNewStaticAddress derives a fresh static receive address on every request\nwithout send_coins_request.addr, or funds an existing address when addr is\nset.",
         "operationId": "SwapClient_NewStaticAddress",
         "responses": {
           "200": {
diff --git a/looprpc/client_grpc.pb.go b/looprpc/client_grpc.pb.go
index b03cc9e8..8fcce869 100644
--- a/looprpc/client_grpc.pb.go
+++ b/looprpc/client_grpc.pb.go
@@ -114,7 +114,9 @@ type SwapClientClient interface {
 	// their current status.
 	ListInstantOuts(ctx context.Context, in *ListInstantOutsRequest, opts ...grpc.CallOption) (*ListInstantOutsResponse, error)
 	// loop: `static newstaticaddress`
-	// NewStaticAddress requests a new static address for loop-ins from the server.
+	// NewStaticAddress derives a fresh static receive address on every request
+	// without send_coins_request.addr, or funds an existing address when addr is
+	// set.
 	NewStaticAddress(ctx context.Context, in *NewStaticAddressRequest, opts ...grpc.CallOption) (*NewStaticAddressResponse, error)
 	// loop: `static listunspentdeposits`
 	// ListUnspentDeposits returns a list of utxos deposited at a static address.
@@ -574,7 +576,9 @@ type SwapClientServer interface {
 	// their current status.
 	ListInstantOuts(context.Context, *ListInstantOutsRequest) (*ListInstantOutsResponse, error)
 	// loop: `static newstaticaddress`
-	// NewStaticAddress requests a new static address for loop-ins from the server.
+	// NewStaticAddress derives a fresh static receive address on every request
+	// without send_coins_request.addr, or funds an existing address when addr is
+	// set.
 	NewStaticAddress(context.Context, *NewStaticAddressRequest) (*NewStaticAddressResponse, error)
 	// loop: `static listunspentdeposits`
 	// ListUnspentDeposits returns a list of utxos deposited at a static address.