Umbraco

Umbraco 13 reaches end of life. Plan your next step.

Umbraco 13 reaches end of life on December 14, 2026. Get a free assessment: version check, upgrade inventory, upgrade, XLTS or move options and a 3-year cost view.

Bilingual team
EN/FR
Bilingual team
Typical turnaround
5 days
Typical turnaround
Cost view
3 years
Cost view

Support deadline · Dec 14, 2026

Umbraco 13 reaches end of life on December 14, 2026

Security patches stop on that date. Extended support (XLTS) can buy time until December 14, 2028.

Source: Umbraco

Why choose Sengo

We work across Umbraco, Kentico, Sitecore, Optimizely and headless platforms, so we have no reason to push you toward one answer. If upgrading Umbraco is the right call, we say so. If another platform fits better, we show you the numbers.

Why this assessment matters now

Umbraco 13 is a long-term support version, and its last security phase ends on December 14, 2026. Sites keep running after that, but security patches stop. Upgrading usually means moving to a newer .NET version and checking every package and custom extension you rely on.

Starting early gives you room to choose: upgrade, buy extended support (XLTS) to gain time, or use the moment to compare platforms.

What you get

What your report contains

Built for the Umbraco 13 deadline: what you run, what it takes to upgrade, and what each option costs.

  • Version and support status

    Your exact Umbraco version, framework and modules, and the date each one stops getting fixes.

  • Upgrade inventory

    Custom code, add-ons and integrations, sorted by what upgrades cleanly and what needs rework.

  • Options compared

    Upgrade to the current Umbraco long-term support version, buy extended support (XLTS) to gain time, or move to another platform.

  • 3-year cost view

    Licence, hosting, support, build effort and internal time for each option, shown as ranges.

  • Recommended path and timeline

    The option we would pick in your place, the order of work and the dates to hit.

  • One-page summary for leadership

    The decision, the cost and the timeline on one page you can forward.

Sample report
  1. 01Version and support statusAct now
  2. 02Upgrade inventoryWatch
  3. 03Options comparedOn track
  4. 043-year cost viewWatch
  5. 05Recommended path and timelineOn track
  6. 06One-page summary for leadershipOn track
Example layout. Your report uses your own findings.

A 3-year cost view your leadership can approve

Every platform audit ends with the numbers a budget owner asks for, not only a list of technical findings.

01

What you spend today

Licence, hosting, support contracts and the internal time your team puts into the platform.

02

Each option over 3 years

Stay, upgrade or move, with build effort and running costs shown as ranges side by side.

03

Risk of waiting

What changes if you do nothing for 12 months: support status, security exposure and rising upgrade effort.

04

One-page summary

The recommendation, the cost and the timeline on one page you can forward to finance or your board.

How it works and who does it

A Sengo consultant who works on your platform runs the review and walks you through it. No sales script, and you keep the report.

  1. 1

    Day 0

    You send the form

    A short form. We reply by email to book a 30-minute kickoff.

  2. 2

    Days 1 to 2

    Kickoff and access

    We confirm your goals and get read-only access, or review what is public if access is not possible.

  3. 3

    Days 2 to 4

    Review

    Code, configuration, performance and content checks, then the cost comparison.

  4. 4

    Day 5

    Report and walkthrough

    You get the report and a call to go through it. Implementation is a separate decision.

Typical timeline for most sites. Large multi-site platforms can take longer; we tell you at kickoff.

Get Your Free Audit

Submit the form—get clarity and momentum.

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Frequently asked questions

What happens to Umbraco 13 after December 14, 2026?

Your site keeps working, but Umbraco stops releasing security patches for version 13. Umbraco Cloud projects follow the same date. Extended support (XLTS) is available from Umbraco if you need more time.

Do you make changes to our site during the assessment?

No. We review code, packages and configuration with read-only access and change nothing in your environments.

Is the assessment useful if we are thinking of leaving Umbraco?

Yes. The report compares upgrading with moving to another platform, using the same 3-year cost view, so you can decide on facts.

What happens after the report?

We walk you through it on a call. You can do the work in-house, with your current agency or with Sengo. It is your report.