More flexible Environment Variables in Edge Functions and Middleware
Environment variable limits have been increased to 64KB (up from 5KB) and variable names are now more flexible with dynamic name computation support. Environment variables are now more accessible in Edge Functions and Routing Middleware with fewer restrictions on naming and access patterns.
This changelog entry is historical. Edge Functions are deprecated for new projects. Use with the Node.js runtime and . Use for request-time routing before a response completes.Note:Vercel FunctionsFluid computeRouting Middleware
You now have more flexible access and improved limits for environment variables from and :functions using the Edge RuntimeRouting Middleware
to learn more.Check out the documentation
The max environment variable size is now 64KB instead of 5KB, .same as Vercel Functions
Other than the , there are no additional restrictions to name environment variables.reserved names
Accessing is no longer restricted to be statically analyzable. This means that, for example, you can now compute variable names such as ${PREFIX}_SECRET.
process.envprocess.env[]
Source: original entry ↗
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