# Codespaces extension downloads failed after a dependency change

DevFeed: [Codespaces extension downloads failed after a dependency change](<https://devfeed.tech/articles/degraded-codespaces-experience-75870.md>)

Original publisher: [Read original article](<https://www.githubstatus.com/incidents/0s7ppykbyvqz>)

Published: 2026-03-12T13:06:00Z

Content type: news

Language: en

Sources: [GitHub Status - Incident History](<https://devfeed.tech/sources/github-status-incident-history.md>)

Topics: [remote-development](<https://devfeed.tech/topics/remote-development.md>), [VS Code Extension](<https://devfeed.tech/topics/vscode-extension.md>), [Visual Studio Code](<https://devfeed.tech/topics/visual-studio-code.md>), [Monitoring](<https://devfeed.tech/topics/monitoring.md>)

Tags: [alerting](<https://devfeed.tech/tags/alerting.md>), [codespaces](<https://devfeed.tech/tags/codespaces.md>), [configuration](<https://devfeed.tech/tags/configuration.md>), [extension](<https://devfeed.tech/tags/extension.md>), [observability](<https://devfeed.tech/tags/observability.md>)

## AI overview

On March 12, 2026, Codespaces users experienced errors downloading extensions in newly created or resumed environments. Active Codespaces with extensions already installed were unaffected. GitHub resolved the issue by changing how the dependency change affected Codespaces requests and said it would enhance observability and alerting.

## Source excerpt

On March 12, 2026, between 01:00 UTC and 18:53 UTC, users saw failures downloading extensions within created or resumed codespaces. Users would see an error when attempting to use an extension within VS Code. Active codespaces with extensions already downloaded were not impacted. The extensions download failures were the result of a change introduced in our extension dependency and was resolved by updating the configuration of how those changes affect requests from Codespaces. We are enhancing observability and alerting of critical issues within regular codespace operations to better detect and mitigate similar issues in the future.