Update requirements.txt

requirements.txt

@@ -1,14 +1,10 @@
-# Language & Core
-langchain==0.3.1
-langchain-community==0.3.1
-langchain-huggingface==0.1.0
+# 2026 Stable "Pure v1" Stack
+langchain==1.0.1
+langchain-community==1.0.1
+langchain-huggingface==1.0.0
 langchain-classic==1.0.1
-
-# Vector DB & Processing
+langchain-core==1.2.7
 chromadb==0.5.5
 pypdf==4.2.0
 sentence-transformers==3.0.1
-
-# Interface
-gradio==5.1.0
-huggingface-hub==0.28.0
+gradio==5.1.0