Release notes for Umbraco-CMS v17.4.2
Released on: Thursday, May 21 2026
NuGet Package: Umbraco.Cms v17.4.2
Install and upgrade guidance
- Quick install instructions This link leads to a site made by members of the Umbraco community, it helps make the installation of Umbraco a lot easier for you.
- Upgrade guide
Other
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#22890 Cache: Only write to url table on a single server in load balanced environments to remove lock contention
#22815 Migrations: Add auto upgrade coordination for load-balanced setups
#22563 Cache: Add scope-level cache version tier to reduce DB hits in bulk operations