Release Notes May 2026

Arena Release Notes – May 2026

New Features

  • Sectioning Wizard Auto-Versioning — A new version is automatically created when closing the Sectioning Wizard.
  • Unlink Multiple LED Facts — Unlink multiple LED facts in a single selection.
  • Project Selection from Previous Project — Update project selection based on a previous project.
  • Move Zone Markers — Reposition zone markers directly within the editor for flexible control of headers, footers, and page layout zones.
  • Landscape Proof Support — Added support for landscape-oriented proof generation.
  • Table Column Width Controls — Manage table column widths, including colSpan handling.
  • Remove Table from Text — Remove tables embedded within text content.
  • Frontend Timeout Warning — Users are now warned when frontend operations are taking too long.
  • Show / Hide Comments — Toggle comment visibility directly within Arena.
  • Track Changes Visibility Controls — Added show/hide controls and state-aware icons for track changes.
  • Manual List Sidebar Live Preview — Real-time preview and selection-aware formatting in the Manual List sidebar.
  • Copy & Paste Fact Attributes — Copy and paste fact attributes between facts.
  • Read-Only Mode — Introduced read-only permission mode for reviewer workflows.
  • Max — In-Editor AI Assistant — Added Max, an in-editor AI assistant, upgraded to a GPT-5-based model with improved responses.
  • Pay Versus Performance (PVP) Table Support — Added support for PVP note table structures.
  • Fee Exhibit Support — Added Fee Table Exhibit support to iXBRL submission XML workflows.
  • Advanced Tagging Tray — Major refactor of the tagging tray for more efficient rendering, lazy-loaded concepts, and improved scalability.
  • Advanced Search — Added advanced search functionality with groundwork for nested fact tagging support.
  • Comparison Proof Formatting Visibility — Font and formatting changes are now visible in comparison proofs.
  • Track Changes in Proof Generation — Arena track changes can now be displayed directly in generated proofs.

Improvements

  • Table Handling — Improved table alignment, normalization, and margin handling.
  • Comment Preservation — CKEditor comment threads now persist through LED updates.
  • LED Table Updates — Improved handling of currency symbols, spacer columns, and table synchronization during LED updates.
  • Tagging Tray Concept Search — Refactored concept search using MUI Autocomplete for improved performance and usability.
  • Collaboration Stability — Increased collaboration service timeout reliability.
  • Proof Generation — Improved page break and page border handling.
  • Selection & Tagging — Smarter selection handling and improved tagging workflow state management.
  • Revision History UX — Improved revision history overlay and spinner handling behavior.

Bug Fixes

  • Fixed infinite network calls when no versions exist.
  • Fixed missing class attributes on revision tags.
  • Fixed table alignment issues after sectioning changes.
  • Fixed horizontal rule styling issues caused by table plugins.
  • Fixed UI indicators showing which exhibits require LED updates.
  • Fixed manual list symbol handling.
  • Fixed issue where the first comment in a thread was not saved.
  • Fixed section description UI display inconsistencies.
  • Fixed editor crashes during view changes.
  • Fixed inability to save while track changes mode was enabled.
  • Fixed cover page tagger stability issues.
  • Fixed autosave worker packaging and URL resolution issues.
  • Fixed typed member dimension handling and population issues.
  • Fixed multi-cell fact selection, table model synchronization, and financialized table restriction issues.
  • Fixed statement item population and attribute update behavior.
  • Fixed iXBRL cover tag removal behavior.
  • Fixed fact generation issues for non-PVP facts and note detail workflows.
  • Fixed anchor handling, schema attributes, and null reference scenarios.
  • Fixed cursor positioning and duplicate markup issues when editing inside tags.
  • Fixed unwanted br elements appearing during document reload or revert.
  • Fixed project copy issues where Arena/LED projects referenced or wrote to incorrect files.
  • Fixed Excel unlink/relink workflows and project Excel relationship handling.
  • Fixed document unlock handling during XBRL update workflows.

ThunderDome® Release Notes – May 2026

New Features

  • Project Notes — Introduced project-level note support within ThunderDome®.

Improvements

  • Excel File Handling — Improved one-to-many project-to-Excel file relationships and unlink/relink workflows.
  • Portal Manage Form Types — Enhanced logging and error handling for form type management.
  • LED Project Copy Behavior — Improved file handling to ensure correct files are read when copying projects.

Bug Fixes

  • Fixed project Excel files not properly unlinking after accepted submission.
  • Fixed project copy issues where documents were incorrectly referenced.
  • Fixed document unlock issue preventing XBRL updates.
  • Fixed Manage Form Types Razor pages not being properly included.

FERC Release Notes – May 2026

New Features

  • FERC 2026 Schema Updates — Updated schemas and added endpoint support for new FERC 2026 requirements.