From db7efa5e4628e13bf5da28ce90fa0c59d6c9276b Mon Sep 17 00:00:00 2001
From: Freddy Harris <freddy03h@gmail.com>
Date: Fri, 17 Oct 2025 18:50:13 +0200
Subject: [PATCH 1/4] react 19.1 captureOwnerStack

---
 package-lock.json | 4 ++--
 package.json      | 6 +++---
 src/React.res     | 3 +++
 3 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index ce2aa29..dfb3292 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14,8 +14,8 @@
         "rescript": "^11.0.0"
       },
       "peerDependencies": {
-        "react": ">=19.0.0",
-        "react-dom": ">=19.0.0"
+        "react": ">=19.1.0",
+        "react-dom": ">=19.1.0"
       }
     },
     "node_modules/react": {
diff --git a/package.json b/package.json
index 11c8dda..45994af 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
     "rescript": "^11.0.0"
   },
   "peerDependencies": {
-    "react": ">=19.0.0",
-    "react-dom": ">=19.0.0"
+    "react": ">=19.1.0",
+    "react-dom": ">=19.1.0"
   }
-}
+}
\ No newline at end of file
diff --git a/src/React.res b/src/React.res
index 0676012..0ed5aed 100644
--- a/src/React.res
+++ b/src/React.res
@@ -451,3 +451,6 @@ external useOptimistic: (
 /** `act` is a test helper to apply pending React updates before making assertions. */
 @module("react")
 external act: (unit => promise<unit>) => promise<unit> = "act"
+
+@module("react")
+external captureOwnerStack: unit => Js.nullable<string> = "captureOwnerStack"

From 9d612c97d59a3164a66ac73226431ab1a3e0b28a Mon Sep 17 00:00:00 2001
From: Freddy Harris <freddy03h@gmail.com>
Date: Fri, 31 Oct 2025 16:33:45 +0100
Subject: [PATCH 2/4] use return decorator for captureOwnerStack

---
 src/React.res | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/React.res b/src/React.res
index 0ed5aed..36fcf2a 100644
--- a/src/React.res
+++ b/src/React.res
@@ -452,5 +452,5 @@ external useOptimistic: (
 @module("react")
 external act: (unit => promise<unit>) => promise<unit> = "act"
 
-@module("react")
-external captureOwnerStack: unit => Js.nullable<string> = "captureOwnerStack"
+@module("react") @return(nullable)
+external captureOwnerStack: unit => option<string> = "captureOwnerStack"

From 2766a12ce9830c4700ea349028dfe1ed564755d4 Mon Sep 17 00:00:00 2001
From: Freddy Harris <freddy03h@gmail.com>
Date: Sun, 2 Nov 2025 12:10:33 +0100
Subject: [PATCH 3/4] return null_to_opt instead of nullable

---
 src/React.res | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/React.res b/src/React.res
index 36fcf2a..17f7d6f 100644
--- a/src/React.res
+++ b/src/React.res
@@ -452,5 +452,5 @@ external useOptimistic: (
 @module("react")
 external act: (unit => promise<unit>) => promise<unit> = "act"
 
-@module("react") @return(nullable)
+@module("react") @return(null_to_opt)
 external captureOwnerStack: unit => option<string> = "captureOwnerStack"

From b386ca8c37935e8d47c7fa36b47761e9302b0951 Mon Sep 17 00:00:00 2001
From: Freddy Harris <freddy03h@gmail.com>
Date: Sun, 2 Nov 2025 12:16:24 +0100
Subject: [PATCH 4/4] add comment

---
 src/React.res | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/React.res b/src/React.res
index 17f7d6f..da01d2b 100644
--- a/src/React.res
+++ b/src/React.res
@@ -452,5 +452,7 @@ external useOptimistic: (
 @module("react")
 external act: (unit => promise<unit>) => promise<unit> = "act"
 
-@module("react") @return(null_to_opt)
+/** captureOwnerStack reads the current Owner Stack in development and returns it as a string if available. */
+@module("react")
+@return(null_to_opt)
 external captureOwnerStack: unit => option<string> = "captureOwnerStack"