# LangChain

Platform for agent engineering

## Latest product update

### Control Agent Parameters on a Per-Model Basis

LangChain team·1d ago·0 comments

## April 2026

### Product Updates Timeline

#### Update on April 1
- Chat LangChain Embedded in Documentation

#### Update on April 4
- New Claude Code Tracing Plugin for LangSmith

#### Update on April 6
- Cost Alerting in LangSmith

#### Update on April 7
- Arcade's 7,500+ tools available in LangSmith Fleet

#### Update on April 8
- A2A Support in LangSmith Deployments

#### Update on April 9
- Deep Agents deploy Launched in Beta

#### Update on April 9
- Enhanced Claude Agent SDK Tracing in LangSmith

#### Update on April 18
- Tool Access Controls and Usage Tracking in LangSmith Fleet

#### Update on April 21
- Named 2026 Google Cloud Partner of the Year

#### Update on April 24
- Create and edit files with agents in LangSmith Fleet

#### Update on April 28
- LangSmith Achieves "Awardable" Status for Government Use

#### Update on April 30
- Control Agent Parameters on a Per-Model Basis