SPFx 1.9: New Features and Improvements

SPFx 1.9 shipped with SharePoint improvements. Here’s what’s new for developers.

Key Updates

• Library components GA: Share code across solutions
• Improved Teams support: Better tab development
• Pre-allocate extension hosts: Faster extension loading
• Office UI Fabric 7: Updated component library

Upgrade

npm install @microsoft/sp-core-library@1.9.0
npm install @microsoft/sp-webpart-base@1.9.0

Teams Tab Development

{
  "supportedHosts": ["SharePointWebPart", "TeamsTab"]
}

References

• SPFx 1.9 Release Notes