Viewing: Umbraco-CMS v18.3.0
Target: Thursday, October 29 2026

Release notes for Umbraco-CMS v18.3.0

Target release date: Thursday, October 29 2026

Contributors

Of the 32 bug fixes and feature additions in v18.3.0, a total of 5 of them have been contributed by the community, by 5 unique contributors.

Developer experience 1
HQ Member

#23725 Block actions: observable api props

category/dx area/frontend release/18.3.0 release/17.8.0
by Niels Lyngsø created on Aug 21, 2026 • merged by Niels Lyngsø
UI and UX updates 9
HQ Member

#23860 Backoffice Section Menu: Do not expand the parent tree item when creating

category/ux area/frontend release/18.3.0 release/17.8.0
by Mads Rasmussen created on Sep 6, 2026 • merged by Andy Butland
HQ Member

#23859 Trees: Remove the debounce delaying tree active-state updates after navigation

category/ux area/frontend release/18.3.0 release/17.8.0
by Mads Rasmussen created on Sep 6, 2026 • merged by Andy Butland
HQ Member

#23832 Backoffice: Add breadcrumbs to missing workspaces

category/ui category/ux area/frontend release/18.3.0 release/17.8.0
by Mads Rasmussen created on Sep 3, 2026 • merged by Andy Butland
HQ Member

#23819 Members: Add Member Group column to the member collection table view

category/ui category/ux area/frontend release/18.3.0 release/17.8.0
by Mads Rasmussen created on Sep 2, 2026 • merged by Andy Butland
AdiRachmian

#23806 Tiptap RTE: Right to left / Left to right toolbar buttons do nothing

category/ux type/bug area/frontend release/18.3.0 release/17.8.0
by AdiRachmian created on Sep 1, 2026
Fixed in HQ #23825 Tiptap RTE: Restore the Text Direction toolbar buttons (closes #23806)
HQ Member

#23803 Workspace: Reload workspace structure when an entity's structure changes (e.g. after "Move to")

category/ux type/bug area/frontend release/18.3.0 release/17.8.0
by Mads Rasmussen created on Sep 1, 2026 • merged by Andy Butland
HQ Member

#23722 Template card: support href

category/ui category/ux area/frontend release/18.3.0 release/17.8.0
by Niels Lyngsø created on Aug 21, 2026 • merged by Niels Lyngsø
HQ Member

#23694 Validation: Reset validation when valid

category/ux type/bug area/frontend release/18.3.0 release/17.8.0
by Niels Lyngsø created on Aug 18, 2026 • merged by Niels Lyngsø
ppsyrra

#23347 Deleting a page from the modal view is not confirmed by a final validation message and page remains displayed - v17 vs v13

category/ux state/sprint-candidate area/frontend affected/v17 affected/v18 release/18.3.0 release/17.8.0
by ppsyrra created on Jul 9, 2026
Fixed in HQ #23797 Document/Media Recycle Bin: Redirect the workspace to the parent after trashing the open document or media item (closes #23347)
API and API documentation updates 4
HQ Member

#23844 Tiptap RTE: Document the toolbar menu item argument on execute/isActive (closes #23660)

category/api-documentation area/frontend type/improvement release/18.3.0 release/17.8.0
by Lee Kelleher created on Sep 3, 2026 • merged by Andy Butland
HQ Member

#23801 Sync: Attempt to resolve server role during boot

category/api area/backend release/18.3.0 release/17.8.0
by Kenn Jacobsen created on Sep 1, 2026 • merged by Andy Butland
HQ Member

#23795 Members: Add group to member filter item

category/api area/backend release/18.3.0 release/17.8.0
by Nikolaj Geisle created on Sep 1, 2026 • merged by Kenn Jacobsen
HQ Member

#23685 Management API: Add `hasChildren` to document and media collection responses

category/api area/frontend area/backend release/17.7.0 release/18.3.0
by Andy Butland created on Aug 17, 2026 • merged by Kenn Jacobsen
Other 18
Lantzify

#23856 Localization: Clipboard

community/pr release/18.3.0 release/17.8.0
by Johannes Lantz created on Sep 5, 2026 • merged by Andy Butland
Luuk1983

#23854 Database: Specify the log file when creating a LocalDB database (closes #23852)

community/pr release/18.3.0 release/17.8.0
by Luuk Peters created on Sep 4, 2026 • merged by Andy Butland
Closes Luuk1983 #23852 LocalDB database creation fails when the project path contains a dot-prefixed directory
HQ Member

#23850 Publishing: Make branch publishing property variance aware

area/backend release/18.3.0 release/17.8.0
by Kenn Jacobsen created on Sep 4, 2026 • merged by Andy Butland
HQ Member

#23842 Distributed Locking: Bound the SQL Server lock command by its own lock timeout

area/backend release/18.3.0 release/17.8.0
by Andy Butland created on Sep 3, 2026 • merged by Nikolaj Geisle
smith-john-it

#23823 Umbraco 17.6.2 LTS. TipTap. After disabling the button on the toolbar, it is impossible to return it to its original state. (sometimes it turns on after several mouse clicks or keyboard arrow keys)

type/bug area/frontend affected/v17 release/18.3.0 release/17.8.0
by smith-john-it created on Sep 2, 2026
Fixed in HQ #23833 Tiptap RTE: Re-evaluate toolbar element disabled state on editor changes (closes #23823)
liamlaverty

#23777 Scoping: Correct WriteLock/ReadLock return behaviour when TimeSpan is passed in

community/pr release/18.3.0 release/17.8.0
by Liam Laverty created on Aug 27, 2026 • merged by Andy Butland
HQ Member

#23767 Rich Text: Fix local link tag matching for encoded braces and neighbouring tags

area/backend release/18.3.0 release/17.8.0
by Ronald Barendse created on Aug 26, 2026 • merged by Andy Butland
HQ Member

#23760 Multinode Treepicker: Correct the entity types advertised by the value schema

area/backend release/18.3.0 release/17.8.0
by Andy Butland created on Aug 26, 2026 • merged by Nikolaj Geisle
HQ Member

#23749 Custom maintenance page override doesn't work as documented

type/bug area/backend category/documentation release/18.3.0 release/17.8.0
by sofietoft created on Aug 25, 2026
Fixed in HQ #23763 Maintenance page: Fix custom view override and make view paths configurable (closes #23749)
HQ Member

#23723 Block Grid: observe catalogue routes

area/frontend release/18.3.0 release/17.8.0
by Niels Lyngsø created on Aug 21, 2026 • merged by Niels Lyngsø
andreaslborg

#23708 Tiptap RTE: Tiptap preserve links when clearing formatting (closes #23695)

community/pr release/18.3.0 release/17.8.0
by Andreas Lykke Borg created on Aug 20, 2026 • merged by Lee Kelleher
Closes nraj-ite #23695 RTE: Clear Formatting removes links
Luuk1983

#23705 Connection string "Command Timeout" is discarded by UmbracoDatabase.InitCommandTimeout()

state/sprint-candidate type/bug release/18.3.0 release/17.8.0
by Luuk1983 created on Aug 20, 2026
Fixed in HQ #23817 Database: Honour "Command Timeout" from the connection string (closes #23705)
HQ Member

#23671 Library Element referenced from a Block Element not reflecting latest values

state/sprint-candidate type/bug release/18.3.0
by alo-umbraco created on Aug 14, 2026
Fixed in HQ #23873 Delivery API: Update Delivery API cache level for block editors
bjarnef

#23667 Backoffice: Remove or update references to our.umbraco.com

community/pr release/18.3.0 release/17.8.0
by Bjarne Fyrstenborg created on Aug 13, 2026 • merged by Andy Butland
arnelirobles

#23598 Delivery API: subscriber guard on member application registration never matches, because the server role is not elected during startup

state/sprint-candidate area/backend affected/v17 affected/v18 release/18.3.0 release/17.8.0
by arnelirobles created on Aug 7, 2026
JoellaAndersson

#23588 Switching off vary-by-culture toggle removes block-content in blocklist

state/sprint-candidate type/bug area/backend affected/v17 affected/v18 release/18.3.0 release/17.8.0
by JoellaAndersson created on Aug 7, 2026
Fixed in HQ #23690 Block Editors: Align element level variance to the culture of the owning property value (closes #23588)
HQ Member

#23549 Publish with descendants silently skips explicitly selected non-default cultures for invariant block properties

state/sprint-candidate type/bug area/backend affected/v17 release/18.3.0 release/17.8.0
by iOvergaard created on Aug 4, 2026
HQ Member

#23046 E2E: QA Added acceptance tests for approved color label

category/test-automation area/test release/18.3.0
by Andreas Zerbst created on Jun 2, 2026 • merged by Andy Butland