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UMB.FYI
2026-05-13

🚨 [Breaking change]: Remove jQuery Validation support from Umbraco Forms client-side scripts

Umbraco Forms 19 removes the jQuery Validation alternative, making aspnet-client-validation the sole supported client-side validation framework. The legacy umbracoforms-conditions.js is also deleted, simplifying maintenance and eliminating jQuery dependencies. Users must update their sites to restore @Html.RenderUmbracoFormDependencies(Url) and remove jQuery validation scripts.

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