Release Notes February 2026


Arena Release Notes – February 2026

New Features

  • Insert Blank Sections — Restored the ability to create new blank sections directly in the editor with improved handling of active editor roots and document states.
  • Footnotes Support — Added full footnote support, available via the context menu and XBRL tray.
  • Notes Support — Added a note parser with improved notes handling and stability.
  • 8-K Auto Tagger — Continued stabilization of 8-K auto tagging, including fixes for context attribute issues and Cover Page modal regressions.
  • Comment Side Panel — Restored the comment side panel for viewing and cycling through comments with an improved layout.
  • Comment Flyout Menu — Moved dropdown actions off the comment thread for cleaner interaction.
  • Fact View Cleanup — Removed accordion UI from fact view and aligned unit, scale, and role inputs inline.
  • Versions Modal Tooltips — Added tooltips when version actions are disabled due to multiple active users.

Sectioning Wizard

  • Sectioning Wizard UX — Improved UI/UX, reduced code duplication, and added documentation for section validation behavior.
  • Unsectioned Content Handling — Added drag-and-drop support and merging behavior to simplify re-sectioning workflows.
  • Section Type Dropdown — Prevented the section type dropdown from auto-opening in the Sectioning Wizard, reducing accidental changes.

LED & Excel

  • LED API Error Handling — Improved LED API error handling to prevent invalid updates with clearer user-facing error messages.
  • LED Errors for Unlinked Tables — Improved warning messages for unlinked tables and facts with expanded error handling coverage.
  • Comparison Proof Auto-Download — Removed automatic download behavior for comparison proofs in multi-user scenarios.

Bug Fixes

  • Fixed crash when switching between facts in the tagging tray.
  • Dimension details now display immediately after creation.
  • Dimension member search results now update dynamically as the user types.
  • Fixed start/end date validation and timezone issues, including corrected save button initial state.
  • Fixed issue where exiting a document failed to create a new version.
  • Fixed version revert logic that was incorrectly preventing reverts in Arena.