FormEngine 8.1.0

May 1, 2026

Overview

FormEngine 8.1.0 improves multilingual behavior (fallbacks, edge-case handling, and removal of the [NOT LOCALIZED] placeholder), adds documented Designer language-switch customization, and includes small viewer and bundle-size example updates.

Why update

• Improve localization: stronger fallbacks and edge-case handling; [NOT LOCALIZED] is no longer emitted.
• Style or replace the Designer language-switch UI using documented menu keys instead of patching internals.

Key features

• Language switch customization for MainMenu_Item_LanguageSwitch and MainMenu_Item_LanguageItem_<language-full-code> in the Designer.

Changelog

Update instructions

Update all packages to version 8.1.0. No stylesheet or API migration beyond 8.0.0 is required for typical applications.

Enhancements

• Remove the [NOT LOCALIZED] placeholder from localized output and improve Fluent fallback behavior.

Bug fixes

• Fix incorrect application of component styles in production builds.
• Address localization edge cases in the Fluent fallback chain (LocalizationStore).

Resources

• Expanded Designer customization with concrete language-switch customization examples.
• Revisit Localization and Internationalization when you adjust multilingual forms.

Chore

• Bumped uuid and @rspack/cli in the examples community bundle-size template.