tslib is a crucial runtime library for TypeScript projects, providing helper functions that support the execution of TypeScript code in JavaScript environments. Version 2.5.1, released on May 17, 2023, is a minor update following version 2.5.0, which was released on January 26, 2023. Although both versions share the same core purpose of offering these essential runtime functions, there are subtle differences that developers should be aware of.
The most notable difference lies in the dist metadata. Version 2.5.1 includes 13 files in the distributed package, slightly more than the 12 files in version 2.5.0. This can suggest the introduction of new helper functions, bug fixes, platform targeting improvements, or optimizations. The unpacked size also increased slightly to 60922 bytes from 60043 bytes. Developers should investigate the changelog to understand the nature of the changes in 2.5.1. The "0BSD" license ensures developers the freedom to integrate tslib into projects without licensing concerns. Both versions are maintained by Microsoft, an indicator for continued quality and regular updates. Finally, developers can access the source code through the GitHub repository.
The are not vulnerabilities for the version 2.5.1 of the package tslib