Async is a utility library for JavaScript, designed to simplify working with asynchronous JavaScript. Versions 2.6.1 and 2.6.2 offer developers powerful tools for managing complex asynchronous workflows, but a few key differences set them apart. The primary change between these versions lies in the updated dependency of lodash. Version 2.6.1 relies on lodash version ^4.17.10, while version 2.6.2 updates this dependency to ^4.17.11. This update likely includes bug fixes and minor performance improvements within the lodash library itself, contributing to the overall stability and efficiency of Async.
Beyond this dependency tweak, both versions share a wealth of features valuable for developers. They provide a variety of functions such as each, map, filter, reduce, and series, parallel, waterfall that greatly streamline asynchronous code by handling common patterns like iteration, collection manipulation, and control flow. Using async developers can avoid callback hell, improving code readability and maintainability. The library also offer a comprehensive suite of testing and development tools, including testing frameworks like Mocha and Karma, linting with ESLint, and packaging with Rollup and Browserify. Async remains a robust and reliable solution for handling asynchronous operations in JavaScript projects. The minor update to Lodash in 2.6.2 likely provides marginal improvements to performance and stability, making it the preferable choice for new projects.
All the vulnerabilities related to the version 2.6.2 of the package
Prototype Pollution in async
A vulnerability exists in Async through 3.2.1 for 3.x and through 2.6.3 for 2.x (fixed in 3.2.2 and 2.6.4), which could let a malicious user obtain privileges via the mapValues() method.
