CKEditor 5 changelog
This is the CKEditor 5 changelog guide. Here you will find information about the most important changes introduced in the release, new features, and bug fixes.
Information about both major and minor breaking changes is available, too, if the release introduces them. You can read more about breaking changes in CKEditor 5 in the Versioning policy guide.
You can find more information about each release in the blog posts linked at the start of each entry.
This guide provides the changelog information for the 3 latest releases of CKEditor 5. For older releases, refer to the release notes on GitHub.
We are happy to announce the release of CKEditor 5 v47.7.1.
The release addresses a vulnerability identified in the protobuf.js package (CVE-2026-41242), used within our @ckeditor/ckeditor5-operations-compressor package for real-time collaboration.
Our analysis confirms that this vulnerability does not affect CKEditor 5, as all protobuf definitions are static and pre-compiled at build time, and are never parsed or compiled from untrusted input at runtime - which is the condition required to exploit this issue.
This release primarily aims to ensure that our customers using real-time collaboration features do not encounter unnecessary security alerts from their scanning tools. We are committed to maintaining the highest security standards, and this update reflects our ongoing efforts to safeguard user environments proactively.
CKEditor 5 v47.7.0 is the first maintenance release in the CKEditor 5 Long-term Support (LTS) Edition line. The LTS Edition is a paid add-on to a CKEditor 5 license for teams that want to stay on one major version longer while continuing to receive security updates and selected compatibility fixes.
This release introduces license verification for the LTS Edition. If your license key does not include LTS access, the editor will fail to load. Aside from this license verification, no other changes were introduced in this release.
- If your license includes LTS access, upgrade to v47.7.0 and remain on the LTS line.
- If you want to stay on the standard release line, do not upgrade to v47.7.0 — stay on v47.6.2 or lower, or upgrade to v48.0.0 or later.
CKEditor 5 LTS Edition is designed for teams that prefer long-term stability over frequent upgrades. It lets you stay on a single major version for up to 3 years, while receiving security updates and compatibility fixes without breaking changes. Unlike the standard release line, which delivers several major releases each year, LTS focuses on stability and predictable maintenance rather than ongoing feature development.
To learn more, visit the LTS documentation.
It is available as a paid add-on to your existing CKEditor 5 license. Contact our sales team for pricing and a tailored plan.
We are releasing CKEditor 5 v47.6.2, a patch for the v47 line that removes the no-longer-functional Amazon Bedrock AI integration in the legacy AI Assistant plugin.