Viewing: Umbraco-CMS v18.0.1
Released: Wednesday, July 1 2026

Release notes for Umbraco-CMS v18.0.1

Released on: Wednesday, July 1 2026

NuGet Package: Umbraco.Cms v18.0.1

Install and upgrade guidance

Other 6
HQ Member

#23231 HybridCache: rebuild deferred content type changes under distributed-cache-only publishers

area/backend release/17.5.1 release/18.0.1
by Ronald Barendse created on Jun 29, 2026 • merged by Andy Butland
HQ Member

#23227 Document URLs: persist URL segments on content type variation change under distributed-cache-only publishers

area/backend release/17.5.1 release/18.0.1
by Ronald Barendse created on Jun 29, 2026 • merged by Andy Butland
HQ Member

#23217 Relations: Allow `Element` and `ElementContainer` as allowed object types for relation creation

area/backend release/18.0.1
by Ronald Barendse created on Jun 26, 2026 • merged by Andy Butland
HQ Member

#23214 Document URLs not persisted to database during distributed-cache-only notification dispatch (e.g. Umbraco Deploy) — content unroutable after restart (regression in 17.4.2)

release/17.5.1 release/18.0.1
by ronaldbarendse created on Jun 26, 2026
Fixed in HQ #23215 Document URLs: Persist URL segments and aliases under distributed-cache-only notification publishers (closes #23214)

#23210 OpenApi: AddBackOfficeOpenApiDocument throws when document name contains uppercase letters

type/bug release/18.1.0 affected/v18
by lauraneto created on Jun 26, 2026
Fixed in HQ #23212 OpenApi: Lowercase document name on registration to match AddOpenApi internal behaviour (closes #23210)
PerplexDaniel

#23156 INavigationQueryService.TryGetChildrenKeys returns keys in wrong order after restart

type/bug release/17.5.1 release/18.0.1
by PerplexDaniel created on Jun 17, 2026
Fixed in HQ #23239 Navigation: Preserve sort order when rebuilding the in-memory structure (closes #23156, #23230)
Also fixes marcusolrik-illumi #23230 Children() returns incorrect sibling order after upgrading from 17.4 to 17.5