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Build logs now redact Sensitive Environment Variable values

UpdateVerifiedAdded Sep 22, 2026

When an Environment Variable is marked Sensitive and has a value 32 characters or longer, Vercel now replaces it with [REDACTED] in the deployment's build logs. The Build Logs view also indicates when redaction happened, giving teams visibility into why output was masked without ever exposing the underlying value.

Read Vercel's release notes

https://vercel.com/changelog/build-logs-now-redact-sensitive-environment-variable-values

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