From 901393a19aef820670758a0de302b00855b0e7da Mon Sep 17 00:00:00 2001
From: Netra Prasad Neupane <39429615+np-n@users.noreply.github.com>
Date: Wed, 25 Feb 2026 13:12:10 +0545
Subject: [PATCH 1/2] support modular langchain as well

---
 .../pipelines/components/retriever/base.py       | 16 +++++++++++++---
 setup.py                                         |  1 +
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/paddlex/inference/pipelines/components/retriever/base.py b/paddlex/inference/pipelines/components/retriever/base.py
index a348836836..b4f067951e 100644
--- a/paddlex/inference/pipelines/components/retriever/base.py
+++ b/paddlex/inference/pipelines/components/retriever/base.py
@@ -21,13 +21,23 @@
 from .....utils.deps import class_requires_deps, is_dep_available
 from .....utils.subclass_register import AutoRegisterABCMetaClass
 
-if is_dep_available("langchain"):
-    from langchain.docstore.document import Document
-    from langchain.text_splitter import RecursiveCharacterTextSplitter
+
 if is_dep_available("langchain-community"):
     from langchain_community import vectorstores
     from langchain_community.vectorstores import FAISS
 
+# Document import capability
+try:
+    from langchain_core.documents import Document
+except ImportError:
+    from langchain.docstore.document import Document
+
+# Text splitter compatibility
+try:
+    from langchain_text_splitters import RecursiveCharacterTextSplitter
+except ImportError:
+    from langchain.text_splitter import RecursiveCharacterTextSplitter
+
 
 @class_requires_deps("langchain", "langchain-community")
 class BaseRetriever(ABC, metaclass=AutoRegisterABCMetaClass):
diff --git a/setup.py b/setup.py
index b02f516f2a..c5018ace36 100644
--- a/setup.py
+++ b/setup.py
@@ -44,6 +44,7 @@
     "langchain-community": ">= 0.2, < 1.0",
     "langchain-core": "",
     "langchain-openai": ">= 0.1, < 1.0",
+    "langchain_text_splitters": "",
     "lxml": "",
     "matplotlib": "",
     "modelscope": ">=1.28.0",

From b39f4308ba781fed72a0cbcd214429a5d9dd528b Mon Sep 17 00:00:00 2001
From: Netra Prasad Neupane <39429615+np-n@users.noreply.github.com>
Date: Wed, 25 Feb 2026 13:14:41 +0545
Subject: [PATCH 2/2] fix

---
 setup.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/setup.py b/setup.py
index c5018ace36..a3a43d9f88 100644
--- a/setup.py
+++ b/setup.py
@@ -40,10 +40,10 @@
     "jieba": "",
     "Jinja2": "",
     "joblib": "",
-    "langchain": ">= 0.2, < 1.0",
-    "langchain-community": ">= 0.2, < 1.0",
+    "langchain": ">= 0.2",
+    "langchain-community": ">= 0.2",
     "langchain-core": "",
-    "langchain-openai": ">= 0.1, < 1.0",
+    "langchain-openai": ">= 0.1",
     "langchain_text_splitters": "",
     "lxml": "",
     "matplotlib": "",