diff --git a/agents/rag/uv.lock b/agents/rag/uv.lock
index edd28ecbb..2011b4751 100644
--- a/agents/rag/uv.lock
+++ b/agents/rag/uv.lock
@@ -1025,7 +1025,7 @@ wheels = [
 
 [[package]]
 name = "langchain-core"
-version = "1.2.14"
+version = "1.3.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "jsonpatch" },
@@ -1037,21 +1037,21 @@ dependencies = [
     { name = "typing-extensions" },
     { name = "uuid-utils" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/3f/ff/c5e3da8eca8a18719b300ef6c29e28208ee4e9da7f9749022b96292b6541/langchain_core-1.2.14.tar.gz", hash = "sha256:09549d838a2672781da3a9502f3b9c300863284b77b27e2a6dac4e6e650acfed", size = 833399, upload-time = "2026-02-19T14:22:33.514Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/92/fe/20190232d9b513242899dbb0c2bb77e31b4d61e343743adbe90ebc2603d2/langchain_core-1.3.0.tar.gz", hash = "sha256:14a39f528bf459aa3aa40d0a7f7f1bae7520d435ef991ae14a4ceb74d8c49046", size = 860755, upload-time = "2026-04-17T14:51:38.298Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/71/41/fe6ae9065b866b1397adbfc98db5e1648e8dcd78126b8e1266fcbe2d6395/langchain_core-1.2.14-py3-none-any.whl", hash = "sha256:b349ca28c057ac1f9b5280ea091bddb057db24d0f1c3c89bbb590713e1715838", size = 501411, upload-time = "2026-02-19T14:22:32.013Z" },
+    { url = "https://files.pythonhosted.org/packages/f8/e2/dbfa347aa072a6dc4cd38d6f9ebfc730b4c14c258c47f480f4c5c546f177/langchain_core-1.3.0-py3-none-any.whl", hash = "sha256:baf16ee028475df177b9ab8869a751c79406d64a6f12125b93802991b566cced", size = 515140, upload-time = "2026-04-17T14:51:36.274Z" },
 ]
 
 [[package]]
 name = "langchain-text-splitters"
-version = "1.1.1"
+version = "1.1.2"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "langchain-core" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/85/38/14121ead61e0e75f79c3a35e5148ac7c2fe754a55f76eab3eed573269524/langchain_text_splitters-1.1.1.tar.gz", hash = "sha256:34861abe7c07d9e49d4dc852d0129e26b32738b60a74486853ec9b6d6a8e01d2", size = 279352, upload-time = "2026-02-18T23:02:42.798Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/26/9f/6c545900fefb7b00ddfa3f16b80d61338a0ec68c31c5451eeeab99082760/langchain_text_splitters-1.1.2.tar.gz", hash = "sha256:782a723db0a4746ac91e251c7c1d57fd23636e4f38ed733074e28d7a86f41627", size = 293580, upload-time = "2026-04-16T14:20:39.162Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/84/66/d9e0c3b83b0ad75ee746c51ba347cacecb8d656b96e1d513f3e334d1ccab/langchain_text_splitters-1.1.1-py3-none-any.whl", hash = "sha256:5ed0d7bf314ba925041e7d7d17cd8b10f688300d5415fb26c29442f061e329dc", size = 35734, upload-time = "2026-02-18T23:02:41.913Z" },
+    { url = "https://files.pythonhosted.org/packages/d3/26/1ef06f56198d631296d646a6223de35bcc6cf9795ceb2442816bc963b84c/langchain_text_splitters-1.1.2-py3-none-any.whl", hash = "sha256:a2de0d799ff31886429fd6e2e0032df275b60ec817c19059a7b46181cc1c2f10", size = 35903, upload-time = "2026-04-16T14:20:38.243Z" },
 ]
 
 [[package]]
diff --git a/examples/agent-integration/rag/conversation-rag-agent/uv.lock b/examples/agent-integration/rag/conversation-rag-agent/uv.lock
index 275424b69..2e987c790 100644
--- a/examples/agent-integration/rag/conversation-rag-agent/uv.lock
+++ b/examples/agent-integration/rag/conversation-rag-agent/uv.lock
@@ -20,7 +20,7 @@ wheels = [
 
 [[package]]
 name = "agentstack-sdk"
-version = "0.6.3"
+version = "0.7.2"
 source = { editable = "../../../../apps/agentstack-sdk-py" }
 dependencies = [
     { name = "a2a-sdk" },
@@ -567,7 +567,7 @@ wheels = [
 
 [[package]]
 name = "langchain-core"
-version = "1.2.14"
+version = "1.3.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "jsonpatch" },
@@ -579,21 +579,21 @@ dependencies = [
     { name = "typing-extensions" },
     { name = "uuid-utils" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/3f/ff/c5e3da8eca8a18719b300ef6c29e28208ee4e9da7f9749022b96292b6541/langchain_core-1.2.14.tar.gz", hash = "sha256:09549d838a2672781da3a9502f3b9c300863284b77b27e2a6dac4e6e650acfed", size = 833399, upload-time = "2026-02-19T14:22:33.514Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/92/fe/20190232d9b513242899dbb0c2bb77e31b4d61e343743adbe90ebc2603d2/langchain_core-1.3.0.tar.gz", hash = "sha256:14a39f528bf459aa3aa40d0a7f7f1bae7520d435ef991ae14a4ceb74d8c49046", size = 860755, upload-time = "2026-04-17T14:51:38.298Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/71/41/fe6ae9065b866b1397adbfc98db5e1648e8dcd78126b8e1266fcbe2d6395/langchain_core-1.2.14-py3-none-any.whl", hash = "sha256:b349ca28c057ac1f9b5280ea091bddb057db24d0f1c3c89bbb590713e1715838", size = 501411, upload-time = "2026-02-19T14:22:32.013Z" },
+    { url = "https://files.pythonhosted.org/packages/f8/e2/dbfa347aa072a6dc4cd38d6f9ebfc730b4c14c258c47f480f4c5c546f177/langchain_core-1.3.0-py3-none-any.whl", hash = "sha256:baf16ee028475df177b9ab8869a751c79406d64a6f12125b93802991b566cced", size = 515140, upload-time = "2026-04-17T14:51:36.274Z" },
 ]
 
 [[package]]
 name = "langchain-text-splitters"
-version = "1.1.1"
+version = "1.1.2"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "langchain-core" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/85/38/14121ead61e0e75f79c3a35e5148ac7c2fe754a55f76eab3eed573269524/langchain_text_splitters-1.1.1.tar.gz", hash = "sha256:34861abe7c07d9e49d4dc852d0129e26b32738b60a74486853ec9b6d6a8e01d2", size = 279352, upload-time = "2026-02-18T23:02:42.798Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/26/9f/6c545900fefb7b00ddfa3f16b80d61338a0ec68c31c5451eeeab99082760/langchain_text_splitters-1.1.2.tar.gz", hash = "sha256:782a723db0a4746ac91e251c7c1d57fd23636e4f38ed733074e28d7a86f41627", size = 293580, upload-time = "2026-04-16T14:20:39.162Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/84/66/d9e0c3b83b0ad75ee746c51ba347cacecb8d656b96e1d513f3e334d1ccab/langchain_text_splitters-1.1.1-py3-none-any.whl", hash = "sha256:5ed0d7bf314ba925041e7d7d17cd8b10f688300d5415fb26c29442f061e329dc", size = 35734, upload-time = "2026-02-18T23:02:41.913Z" },
+    { url = "https://files.pythonhosted.org/packages/d3/26/1ef06f56198d631296d646a6223de35bcc6cf9795ceb2442816bc963b84c/langchain_text_splitters-1.1.2-py3-none-any.whl", hash = "sha256:a2de0d799ff31886429fd6e2e0032df275b60ec817c19059a7b46181cc1c2f10", size = 35903, upload-time = "2026-04-16T14:20:38.243Z" },
 ]
 
 [[package]]
diff --git a/examples/agent-integration/rag/simple-rag-agent/uv.lock b/examples/agent-integration/rag/simple-rag-agent/uv.lock
index bbfb55ebd..8648d2782 100644
--- a/examples/agent-integration/rag/simple-rag-agent/uv.lock
+++ b/examples/agent-integration/rag/simple-rag-agent/uv.lock
@@ -20,7 +20,7 @@ wheels = [
 
 [[package]]
 name = "agentstack-sdk"
-version = "0.6.3"
+version = "0.7.2"
 source = { editable = "../../../../apps/agentstack-sdk-py" }
 dependencies = [
     { name = "a2a-sdk" },
@@ -540,7 +540,7 @@ wheels = [
 
 [[package]]
 name = "langchain-core"
-version = "1.2.14"
+version = "1.3.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "jsonpatch" },
@@ -552,21 +552,21 @@ dependencies = [
     { name = "typing-extensions" },
     { name = "uuid-utils" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/3f/ff/c5e3da8eca8a18719b300ef6c29e28208ee4e9da7f9749022b96292b6541/langchain_core-1.2.14.tar.gz", hash = "sha256:09549d838a2672781da3a9502f3b9c300863284b77b27e2a6dac4e6e650acfed", size = 833399, upload-time = "2026-02-19T14:22:33.514Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/92/fe/20190232d9b513242899dbb0c2bb77e31b4d61e343743adbe90ebc2603d2/langchain_core-1.3.0.tar.gz", hash = "sha256:14a39f528bf459aa3aa40d0a7f7f1bae7520d435ef991ae14a4ceb74d8c49046", size = 860755, upload-time = "2026-04-17T14:51:38.298Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/71/41/fe6ae9065b866b1397adbfc98db5e1648e8dcd78126b8e1266fcbe2d6395/langchain_core-1.2.14-py3-none-any.whl", hash = "sha256:b349ca28c057ac1f9b5280ea091bddb057db24d0f1c3c89bbb590713e1715838", size = 501411, upload-time = "2026-02-19T14:22:32.013Z" },
+    { url = "https://files.pythonhosted.org/packages/f8/e2/dbfa347aa072a6dc4cd38d6f9ebfc730b4c14c258c47f480f4c5c546f177/langchain_core-1.3.0-py3-none-any.whl", hash = "sha256:baf16ee028475df177b9ab8869a751c79406d64a6f12125b93802991b566cced", size = 515140, upload-time = "2026-04-17T14:51:36.274Z" },
 ]
 
 [[package]]
 name = "langchain-text-splitters"
-version = "1.1.1"
+version = "1.1.2"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "langchain-core" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/85/38/14121ead61e0e75f79c3a35e5148ac7c2fe754a55f76eab3eed573269524/langchain_text_splitters-1.1.1.tar.gz", hash = "sha256:34861abe7c07d9e49d4dc852d0129e26b32738b60a74486853ec9b6d6a8e01d2", size = 279352, upload-time = "2026-02-18T23:02:42.798Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/26/9f/6c545900fefb7b00ddfa3f16b80d61338a0ec68c31c5451eeeab99082760/langchain_text_splitters-1.1.2.tar.gz", hash = "sha256:782a723db0a4746ac91e251c7c1d57fd23636e4f38ed733074e28d7a86f41627", size = 293580, upload-time = "2026-04-16T14:20:39.162Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/84/66/d9e0c3b83b0ad75ee746c51ba347cacecb8d656b96e1d513f3e334d1ccab/langchain_text_splitters-1.1.1-py3-none-any.whl", hash = "sha256:5ed0d7bf314ba925041e7d7d17cd8b10f688300d5415fb26c29442f061e329dc", size = 35734, upload-time = "2026-02-18T23:02:41.913Z" },
+    { url = "https://files.pythonhosted.org/packages/d3/26/1ef06f56198d631296d646a6223de35bcc6cf9795ceb2442816bc963b84c/langchain_text_splitters-1.1.2-py3-none-any.whl", hash = "sha256:a2de0d799ff31886429fd6e2e0032df275b60ec817c19059a7b46181cc1c2f10", size = 35903, upload-time = "2026-04-16T14:20:38.243Z" },
 ]
 
 [[package]]