Migration Guide for 2026.1.LTS

This page lists important information for Learnosity customers who are upgrading to the 2026.1.LTS (Long Term Support) version.

API Product changes

The following outlines the API product updates introduced in this release, including changes, deprecations, and smaller new features.

Author API

  • sortlist Question type has been removed from Classification group.
  • Converted Tag search to React component.
  • The config flag for enabling read only mode in Items has been replaced from enabled to enable to make it consistent with other Author API flags to enable specific features. The old config option of enabled will still work, however it will be removed in a future LTS.
  • Moved the breakpoints and added additional labels in order to accommodate the new Override Activity Points feature in the Activity List.

Author Aide

  • The config flag for custom presets has been renamed from custom_contexts to custom_presets to better align with it's feature name. The old config option of custom_contexts will still work, however it will be removed in a future LTS.

Questions API

  • Any custom CSS targeting MediaElement v4 class names or DOM structure may no longer apply. The mediaelementplayer.scss (v4) is no longer compiled. mediaelementplayer-v7.scss now compiled.
  • YouTube video sources: the srcType value is now 'x-youtube' instead of 'youtube' internally. Any code that reads or compares the srcType value directly must be updated accordingly.
  • Caption <track> elements now have a srcLang attribute. DOM-dependent automation asserting on <track> attributes must be updated.

Other

CSS changes for UI improvements

Below is a summary of all CSS changes between the previous LTS release and this release. Generally, these changes contain new feature implementations and various accessibility improvements.

See all CSS changes between v2025.3.LTS and v2026.1.LTS in GitHub.

Annotations API

  • CSS variables for consistency and easier theming.

Author API

  • Added new styles for upcoming features.
  • Consolidated the control panel to support the Override Activity Points feature.

Question Editor API

  • Added a warning message indicating when Override Activity Points were applied.

Questions API

  • Added new styles for upcoming features.
  • Fixed an issue where the disabled tooltip caret was still visible in the Drawing Question type.
  • Added hover and focus tooltips to the drawing toolbar, adjusted label spacing, removed duplicate aria labels, added an icon when the work limit was exceeded, and refined related styling in the Drawing Question type.
  • Fixed accessibility issues to improve word count warning in Essay with rich text Question type.
  • Improved accessibility for the ruler and protractor tools to meet VPAT requirements.
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