Users in the limited beta of Observability can now view advanced insights for serverless Vercel Functions. Explore low level metrics about function execution, including:

• CPU throttle and memory usage: Understand CPU usage and memory consumption and see if you could benefit from upgrading the function to more resources

• Time to First Byte (TTFB): See how quickly your function responds to requests by sending the first bytes of the response

• Function start type: View cold start and pre-warmed function invocation rates

Observability is in limited beta for current Monitoring users and can be accessed from the new Observability tab in your Vercel projects.

We've improved the experience of deploying projects using pnpm, Corepack, and Turborepo together.

Previously, combinations of these tools could result in unexpected behavior or complex build errors. Clear error and warning messages have been added, explaining how to fix problems when incompatibilities exist.

For example, a project with Corepack enabled, specifying pnpm@9.0.0, and a lockfile of version 6.0 would previously see the warning: Ignoring not compatible lockfile. Now, this is handled with a clearer error message: Detected lockfile "6.0" which is not compatible with the intended corepack package manager "pnpm@9.0.0". Update your lockfile or change to a compatible corepack version.

Additionally, each package previously had to define its own packageManager. The root package.json#packageManager is now detected in monorepo projects with Corepack enabled and applied to all packages.

You can now filter by custom date ranges in Speed Insights. Select any custom time period in the date range picker, or drag across the graph to quickly focus on specific period.

Learn more about Speed Insights or enable Speed Insights for your project.