# Crates.io Development Update: What's New?
Since its inception, crates.io has become a central pillar of the Rust ecosystem. Whether you're a developer or a tech decision-maker, staying informed about the improvements and changes affecting this critical platform is essential. Here is a detailed overview of the recent updates to crates.io.
Code Viewer: A Powerful New Feature
One of the most notable updates is the introduction of a new "Code" tab on crate pages. With this feature, you can now explore the content of published versions directly on crates.io. It allows you to see exactly what Cargo downloads when you add a crate as a dependency, including files that never appear in the linked repository, like normalized Cargo.toml files.
Features of the Code Viewer
- File Tree Sidebar: Easily navigate files with a file tree sidebar.
- Search and Syntax Highlighting: Quickly find what you need with search functionalities and syntax highlighting.
- GitHub-Style Line Selection: Share specific parts of the code with line selection and shareable URLs.
This viewer relies on an efficient architecture that significantly reduces the load on crates.io API servers. Each published version is repackaged into a seekable zip archive, allowing files to be loaded on demand. Additionally, a future update will enable direct version-to-version comparisons on crates.io.
Moving Towards GitHub Independence
Historically, crates.io has been closely tied to GitHub, especially for authentication. However, with the acceptance of RFC #3946, this is changing. The platform is introducing crates.io-native usernames that are no longer dependent on GitHub accounts.
Why This Change?
- Diversity of Identity Providers: This paves the way for authentication via other identity providers in the future.
- Security and Flexibility: By decoupling accounts, crates.io enhances security and offers users more flexibility.
While the implementation of these new features is underway, future updates will allow logging in via other identity providers. However, due to the importance of account security, these changes are being rolled out slowly and carefully.
Advisories and Suggestions
Another significant update introduced last January is the "Security" tab, displaying security advisories from RustSec. This helps developers stay informed about potential vulnerabilities in their dependencies and take proactive steps to secure their applications.
Conclusion
The recent improvements to crates.io demonstrate a strong commitment to enhancing user experience and security. Whether you're already using Rust or considering adopting this language, these updates make the ecosystem even more robust and attractive.
Let's discuss your project in 15 minutes.