---
layout: post
date: 2026-03-22
title: TIL - XSLT support ends November 2026
tags: [TIL]
type: til

---

TIL XSLT support ends November 2026

> [Chromium](https://developer.chrome.com/docs/web-platform/deprecating-xslt?ref=links.supply) has officially deprecated XSLT, including the [XSLTProcessor](https://developer.mozilla.org/docs/Web/API/XSLTProcessor) JavaScript API and the [XSLT processing instruction](https://en.wikipedia.org/wiki/Processing_Instruction#:%7E:text=%3C%3Fxml%2Dstylesheet%20type%3D%22text/xsl%22). We intend to remove support from version 158 (November 17, 2026). The [Firefox](https://github.com/mozilla/standards-positions/issues/1287#issuecomment-3227145793) and [WebKit](https://github.com/whatwg/html/issues/11523#issuecomment-3149280766) projects have also indicated plans to remove XSLT from their browser engines.