The tslib package provides runtime support for TypeScript's helper functions, enabling developers to leverage modern JavaScript features while targeting older environments. Versions 1.7.0 and 1.7.1 offer essentially the same core functionality: polyfills and utility functions that allow TypeScript code to execute correctly across different JavaScript engines. Both versions are licensed under Apache-2.0, ensuring broad compatibility and open usage. Microsoft maintains the package, demonstrating its crucial role in the TypeScript ecosystem.
The key distinction lies in the release dates and potentially minor bug fixes or performance improvements implemented between them. Version 1.7.0 was released on May 4, 2017, while version 1.7.1 followed shortly after on May 15, 2017. For developers, this suggests that upgrading from 1.7.0 to 1.7.1 provides the benefit of any addressed issues in the preceding ~11 days.
While the descriptions of both versions are identical, any update to a library, even a minor version bump, is worth considering: especially if the software used depends on the most stable and reliable solution. Developers should inspect the changelog if available, or the differences in the project repository, to determine the exact nature of the changes between these versions. If no issues are known with the prior version and the changelog doesn't reveal impactful changes, the upgrade might be of lower priority.
The are not vulnerabilities for the version 1.7.1 of the package tslib
