treeverse · guy-har · Oct 5, 2025 · Oct 8, 2025
diff --git a/api/swagger.yml b/api/swagger.yml
@@ -90,6 +90,15 @@ components:
       required: false
       schema:
         type: string
+
+    IfMatch:
+      in: header
+      name: If-Match
+      description: Set to the object's ETag to atomically allow operations only if the object's current ETag matches the provided value.
+      example: "2e9ec317e197e02e4264d128c2e7e681"
+      required: false
+      schema:
+        type: string
 
     NoTombstone:
       in: query
@@ -5114,6 +5123,7 @@ paths:
 
       parameters:
         - $ref: "#/components/parameters/IfNoneMatch"
+        - $ref: "#/components/parameters/IfMatch"
         - in: query
           name: storageClass
           description: Deprecated, this capability will not be supported in future releases.

diff --git a/clients/java/api/openapi.yaml b/clients/java/api/openapi.yaml
diff --git a/clients/java/docs/ObjectsApi.md b/clients/java/docs/ObjectsApi.md
diff --git a/clients/java/src/main/java/io/lakefs/clients/sdk/ObjectsApi.java b/clients/java/src/main/java/io/lakefs/clients/sdk/ObjectsApi.java
diff --git a/clients/java/src/test/java/io/lakefs/clients/sdk/ObjectsApiTest.java b/clients/java/src/test/java/io/lakefs/clients/sdk/ObjectsApiTest.java
diff --git a/clients/python/docs/ObjectsApi.md b/clients/python/docs/ObjectsApi.md