diff --git a/data/config-schema/src/main/java/net/corda/schema/configuration/FlowConfig.java b/data/config-schema/src/main/java/net/corda/schema/configuration/FlowConfig.java
index 57359f35ab..67e75825d6 100644
--- a/data/config-schema/src/main/java/net/corda/schema/configuration/FlowConfig.java
+++ b/data/config-schema/src/main/java/net/corda/schema/configuration/FlowConfig.java
@@ -10,6 +10,7 @@ private FlowConfig() {
     public static final String SESSION_P2P_TTL = "session.p2pTTL";
     public static final String SESSION_FLOW_CLEANUP_TIME = "session.cleanupTime";
     public static final String PROCESSING_MAX_RETRY_ATTEMPTS = "processing.maxRetryAttempts";
+    public static final String PROCESSING_MAX_RETRY_WINDOW_DURATION = "processing.maxRetryWindowDuration";
     public static final String PROCESSING_MAX_RETRY_DELAY = "processing.maxRetryDelay";
     public static final String PROCESSING_MAX_FLOW_SLEEP_DURATION = "processing.maxFlowSleepDuration";
     public static final String PROCESSING_FLOW_CLEANUP_TIME = "processing.cleanupTime";
diff --git a/data/config-schema/src/main/resources/net/corda/schema/configuration/flow/1.0/corda.flow.json b/data/config-schema/src/main/resources/net/corda/schema/configuration/flow/1.0/corda.flow.json
index 6e88aed16e..8c0cfbfcd3 100644
--- a/data/config-schema/src/main/resources/net/corda/schema/configuration/flow/1.0/corda.flow.json
+++ b/data/config-schema/src/main/resources/net/corda/schema/configuration/flow/1.0/corda.flow.json
@@ -18,6 +18,13 @@
           "maximum": 1000,
           "default": 5
         },
+        "maxRetryWindowDuration": {
+          "description": "The duration in milliseconds after a transient error that Corda retries a flow before failing it. A value of zero disables retries.",
+          "type": "integer",
+          "minimum": 0,
+          "maximum": 2147483647,
+          "default": 300000
+        },
         "maxRetryDelay": {
           "description": "The maximum delay in milliseconds before Corda schedules a retry.",
           "type": "integer",
diff --git a/gradle.properties b/gradle.properties
index f53ffc0dc2..c879bfa8ff 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -9,7 +9,7 @@ cordaProductVersion = 5.1.0
 # NOTE: update this each time this module contains a breaking change
 ## NOTE: currently this is a top level revision, so all API versions will line up, but this could be moved to
 ##   a per module property in which case module versions can change independently.
-cordaApiRevision = 18
+cordaApiRevision = 19
 
 # Main
 kotlinVersion = 1.8.21