Every major update comes with sacrifices. To streamline performance, Meta has deprecated several legacy features in version 2.3000:

as part of the transition to a more native desktop experience. Known Issues Feature Bugs : Community reports on GitHub (wa-js)

If you saw “version 2.3000” somewhere, it could be:

This vulnerability was an "attachment spoofing" issue, stemming from WhatsApp's improper handling of filenames that contained . In technical terms, this is a CWE-158: "Improper Neutralization of Null Byte or NUL Character". But what does that mean for a regular user?

If you have updated to version 2.3000, here is exactly what has changed under the hood and on the surface.

WhatsApp Web had relied heavily on , a popular JavaScript module bundler. Version 2.3000 eliminated Webpack entirely and adopted a different module‑loading approach. That broke every third‑party library that had previously “injected” code by hooking into Webpack modules.

Privacy remains a cornerstone of the WhatsApp ecosystem. The 2.3000 update introduces: