Deno v2.7.9 Released with Bug Fixes and Performance Enhancements

2026/04/09

Deno, a secure JavaScript and TypeScript runtime, has released version 2.7.9. This update includes several bug fixes and improvements, focusing on the command-line interface, compiler, and extensions, as well as performance enhancements.

The fixes address issues such as showing clean errors for invalid certificate settings, improving standalone binary relaunches, and enhancing compatibility with Node.js. For example, the update fixes an issue where the command-line interface would panic when encountering an invalid --unsafely-ignore-certificate-errors value.

Additionally, the update includes performance improvements by replacing slow metrics wrappers with a shared dispatch. These changes aim to provide developers with a more stable and efficient experience.

The release also includes several other fixes, including improvements to the ext/http and ext/node modules, as well as enhancements to the fs.Dir class. For a detailed overview of the changes, it is recommended to review the release notes.

Overall, the Deno v2.7.9 release provides a range of improvements that should benefit developers using the platform. With its focus on stability, compatibility, and performance, this update is a worthwhile upgrade for anyone working with Deno.

References