Dayjs 1.5.21 represents a minor update to the lightweight JavaScript date library, building upon the foundation laid by version 1.5.20. Both versions maintain the same core functionalities, aiming to provide a simpler and more performant alternative to Moment.js for parsing, validating, manipulating, and formatting dates. Developers already familiar with Dayjs will find a familiar API in both versions, with a focus on immutability and chainability.
The key difference lies in under-the-hood improvements. Version 1.5.21 ships with a slightly larger unpacked size and file count compared to 1.5.20, suggesting the introduction of new features, bug fixes, or internal enhancements that don't drastically alter the core API. While the changelog doesn't offer explicit details, developers might anticipate minor improvements related to date formatting, locale support, or potentially, enhanced timezone handling. Importantly, the dependency list remains identical ensuring no breaking changes at that level. Existing projects using Dayjs can likely upgrade seamlessly to 1.5.21 without encountering compatibility issues.
For developers choosing between the two, opting for the newer 1.5.21 is generally advisable, as it likely incorporates the latest refinements and optimizations. The release date further confirms 1.5.21 as the slightly fresher release. Its core purpose is to parse, format, and manipulate dates, similar to Moment.js, but with a significantly smaller footprint. It boasts immutable operations, improved performance and a simplified syntax.
The are not vulnerabilities for the version 1.5.21 of the package dayjs