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[@hwchase17](/creator/twitter/hwchase17)
"🔥Today were excited to announce new funding for LangChain (at a $1.25B valuation) to allow us to build the platform for agent engineering. LangChain started as a single Python package X years ago. Since then weve evolved into a comprehensive platform for agent engineering (LangGraph LangSmith). Our tools now power AI teams like @Replit @clay @harvey @TrustVanta @Cloudflare @Rippling @Cisco @Workday and many more. Over the past three years weve iterated from LangChain to LangSmith to LangGraph. Our goal has always been to figure out what the agents of the future look like and then build tools"  
[X Link](https://x.com/hwchase17/status/1980680421706006663) [@hwchase17](/creator/x/hwchase17) 2025-10-21T16:59Z 81K followers, 361.3K engagements


"🥳Announcing LangChain and LangGraph XXX LangChain and LangGraph XXX versions are now LIVE For both Python and TypeScript Some exciting highlights: - NEW DOCS - LangChain Agent: revamped and more flexible with middleware - LangGraph 1.0: we've been really happy with LangGraph and this is our official stamp of approval - Standard content blocks: swap seamlessly between models Read more about it here: We hope you love it"  
[X Link](https://x.com/hwchase17/status/1981030005229670438) [@hwchase17](/creator/x/hwchase17) 2025-10-22T16:08Z 81K followers, 105.1K engagements


"I am not excited about visual workflow builders X. Not simple enough for the average user. I believe there should be a simpler way to create modify and adapt no-code agents X. Not scalable for complex use cases Wrote a little blog:"  
[X Link](https://x.com/hwchase17/status/1975603633791377920) [@hwchase17](/creator/x/hwchase17) 2025-10-07T16:46Z 81K followers, 96.6K engagements


"Christians done a lot to push LangChain XXX forward for typescript devs Big part of the team"  
[X Link](https://x.com/hwchase17/status/1981078174676267240) [@hwchase17](/creator/x/hwchase17) 2025-10-22T19:20Z 81K followers, 6387 engagements


"We're doing three launch events to celebrate all that we are releasing: - SF (tonight) - Boston (Wednesday) - New York (Thursday) RSVP here and come learn all about the new stuff we're launching:"  
[X Link](https://x.com/hwchase17/status/1980685622164758922) [@hwchase17](/creator/x/hwchase17) 2025-10-21T17:20Z 81K followers, 11.9K engagements


"thank you to our friends at @WorkOS for the cake 🥳🥳🥳"  
[X Link](https://x.com/hwchase17/status/1981486611247616186) [@hwchase17](/creator/x/hwchase17) 2025-10-23T22:23Z 81K followers, 3614 engagements