Changes since langchain==0.2.11
langchain[patch]: Release 0.2.12 (#24954)
langchain[minor]: Upgrade ambiguous root_validator to @pre_init (#24895)
langchain[patch]: Update unit tests to workaround a pydantic 2 issue (#24886)
langchain[patch]: Add missing type annotations (#24889)
langchain[patch]: fix ollama in init_chat_model (#24832)
langchain[patch]: init_chat_model() to import ChatOllama from langchain-ollama and fallback on langchain-community (#24821)
langchain: revert "init_chat_model() to support ChatOllama from langchain-ollama" (#24819)
langchain: init_chat_model() to support ChatOllama from langchain-ollama (#24818)
langchain: Make OutputFixingParser.from_llm() create a useable retry chain (#24687)
community[minor]: Self query retriever for HANA Cloud Vector Engine (#24494)
langchain: fix TrajectoryEvalChain.prep_inputs (#19959)
langchain[patch]: init_chat_model support ChatBedrockConverse (#24564)