Illustration of a broken deployment pipeline caused by a command-line interface tool error.

InfrastructureHigh

Netlify CLI Upgrade Breaks Next.js Deploys

TL;DR: A recent update to the Netlify CLI, from version 24 to 26, is causing deployment failures for some developers. The issue appears to affect Next.js projects, where a key server handler file exceeds the platform's 250 MB size limit, breaking previously working CI/CD pipelines.

By Ashish KaleNetlify Communityjust now1 min readupdated 4h ago

Source

Key facts

Category: Infrastructure
Impact: High
Published: just now
Source: Netlify Community

Full summary

An update to the Netlify CLI is causing deployment failures for Next.js projects, with a server handler file exceeding the 250 MB limit.

Developers are reporting deployment failures after upgrading the Netlify Command Line Interface (CLI) from version 24 to 26. The problem stems from a significant increase in the size of a critical server handler file, which now exceeds the platform's 250 MB limit. This regression affects projects that were previously deploying without any issues. The reports specifically highlight users of the popular Next.js framework, including those within complex monorepo setups. The failure occurs during the deploy-preview stage, preventing developers from testing changes before they go live. Users confirmed that reverting to the older CLI version resolved the deployment block.

This regression is critical for development teams relying on Netlify for their CI/CD pipelines. A broken deployment process can halt development, delay feature releases, and consume valuable engineering time for troubleshooting. For CTOs and engineering managers, this unexpected failure in a core infrastructure tool underscores the importance of cautious version pinning and staged rollouts for critical dependencies. The problem directly impacts productivity for anyone using Next.js on Netlify, a common combination for modern web applications. Without a quick resolution, teams may be forced to halt CLI upgrades or implement temporary workarounds, disrupting their standard development workflows.

Why it matters

This regression in a core developer tool breaks CI/CD pipelines, halting development and feature releases. It forces teams to spend valuable engineering time on infrastructure troubleshooting instead of product development, directly impacting productivity for the large user base combining Netlify and Next.js.

Business impact

Broken deployment pipelines directly translate to delayed product releases and increased operational costs. Engineering teams are forced to divert resources from feature development to infrastructure repair, impacting project timelines and potentially delaying revenue-generating updates.

⚡ Action needed

Developers using Netlify CLI with Next.js should avoid upgrading to v26 or consider downgrading to v24 to prevent deployment failures. Pinning the CLI version in CI/CD environments is recommended until a fix is released.