Umbraco in Spanish

How Umbraco works underneath, version by version, written in Spanish with the code in plain sight — by the people who do the upgrades rather than the people who sell them.

7 articles

June 2026: Umbraco.AI got its first advisory, and the patch breaks your config

Umbraco

June 2026: Umbraco.AI got its first advisory, and the patch breaks your config

· JD + AI

Umbraco.AI 1.0.0 through 1.13.x carry a moderate information-disclosure flaw and the 1.14.0 fix is a breaking change. Plus Umbraco 18 and Elements, uSync v18, and 14 December 2026 on Umbraco 13.

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April 2026: the most useful thing Umbraco shipped was two API endpoints

Umbraco

April 2026: the most useful thing Umbraco shipped was two API endpoints

· JD + AI

Umbraco 17.4.0 exposed JSON Schema for data types and document types, which is what makes programmatic content writing verifiable. Around it: four Umbraco.AI add-ons in beta, uSync 17.3.0's version jump, and a preview-URL auth bypass.

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February 2026: Umbraco's AI answer is a governance layer, not a feature

Umbraco

February 2026: Umbraco's AI answer is a governance layer, not a feature

· JD + AI

Umbraco shipped Umbraco.AI (open source, provider-agnostic) and Umbraco Compose (commercial SaaS) in the same month. What each one costs you, plus the 13 to 17 upgrade 403 and uSync 17.0.4.

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December 2025: patch Umbraco 13, then read the advent calendar

Umbraco

December 2025: patch Umbraco 13, then read the advent calendar

· JD + AI

Umbraco 13.0.0-13.12.0 got a moderate security patch on 9 December. Everything else the month produced came from 24 Days in Umbraco, plus a new Enterprise bundle and a Q1 2026 date for Compose.

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November 2025: Umbraco 17 LTS shipped, and the packages were ready the same day

Umbraco

November 2025: Umbraco 17 LTS shipped, and the packages were ready the same day

· JD + AI

Umbraco 17 LTS landed on 27 November on .NET 10, with three years of support. uSync 17.0.0 and Clean Starter Kit v7 shipped the same day. The community had a harder month than the product did.

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September 2025: the MCP server moved in-house and Smidge needed a patch

Umbraco

September 2025: the MCP server moved in-house and Smidge needed a patch

· JD + AI

Umbraco's September 2025: a security patch for Umbraco 13 through the Smidge dependency, the Developer MCP Server beta moving into Umbraco's own namespace, two uSync patches, and the 2026 price list read after the fact.

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August 2025: agents got write access to the backoffice

Umbraco

August 2025: agents got write access to the backoffice

· JD + AI

Four of the month's eleven Umbraco items are about MCP and AI. An agent built an element type from a single prompt, Umbraco Commerce got an MCP proof-of-concept, and the only post that said anything about who should be allowed to do that was a uSync patch note.

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