# LangChain

URL: https://donedeploy.com/technologies/langchain/

[!AI · November 2, 2026CI/CD for Models and PromptsEvaluation gates, model registries, canary releases and rollback: applying CI/CD discipline to prompts and models in LLM applications.](https://donedeploy.com/cicd-for-llms/)[!AI · October 23, 2026Fine-Tuning or Prompting? A Decision Guide for Small TeamsWhen prompting, RAG or fine-tuning is the right way to adapt a language model, and what each one costs a small engineering team.](https://donedeploy.com/fine-tuning-or-prompting/)

Questions

## LangChain: frequently asked

Is LangChain production ready?

Many teams run it in production. The key is pinning versions, tracing every step and testing changes, because it is a large and fast-moving library.

Do we need LangSmith?

No. LangSmith is helpful for tracing and evaluation, but OpenTelemetry-based tooling can cover the same ground if you prefer to keep data in your own stack.

Running LangChain, or deciding whether to? Tell us what you have; the first consultation is free.

[Let's talk »](https://donedeploy.com/lets-talk/)