DIALux evo 14 Update: What’s New (+ Full Version History)
DIALux evo has come a long way since version 8.1. The free lighting design software from DIAL GmbH is now on DIALux evo 14 (current patch: 5.14.0.4, released 16 June 2026), and this release focuses on something every lighting designer working on large projects has asked for: faster, more manageable calculations.
Below, we cover everything new in evo 14, how to get it, and — for reference — a complete version history of DIALux evo updates going all the way back to 8.1.
Download DIALux evo 14 free from dial.de →
Quick Facts: DIALux evo 14
| Latest version | 5.14.0.4 (Patch 4) |
| Released | 16 June 2026 (evo 14 launched 22 April 2026) |
| Price | Free |
| Platform | Windows 10 (1803+) / Windows 11, 64-bit only |
| Minimum RAM | 4 GB (8–16 GB recommended for professional use) |
| Graphics | OpenGL 3.2, 2 GB+ VRAM recommended |
| Languages | 27, including English, German, Spanish, French, Chinese, Japanese, Korean |
What’s New in DIALux evo 14
1. Room-by-Room Calculation
This is the headline feature of evo 14, and it solves a real pain point. Previously, any change to a large project meant recalculating the entire model — which could take a long time on projects with many rooms and hundreds of luminaires.
With evo 14, you can now calculate individual rooms or areas independently. Each room’s results are saved separately and then combined into an overall project result. This means you can:
- Plan one room at a time on large projects without waiting on a full recalculation
- Add new rooms or areas to a project incrementally
- Update a single space without discarding results elsewhere
Status icons in the results monitor now show at a glance whether each room’s results are current, pending, or outdated, and you can discard results selectively rather than clearing the whole project. This feature is included in the free version of DIALux evo — no Pro subscription required.
2. Scope Box View
BIM models often include components that extend beyond room boundaries — cabling, ceiling voids, structural elements — which can clutter the view when working room by room. The new Scope Box view fixes this: within any room view, only geometry that’s actually inside that room is displayed, and everything outside it is automatically hidden.
It’s enabled by default in evo 14, but can be turned off in program settings if you prefer the old behavior.
3. Native Revit Add-In
DIALux evo 14 introduces a dedicated Revit Add-In as part of DIAL’s push toward end-to-end BIM workflows. It reads luminaire and room data directly from IFC models and places luminaires as Revit families in their correct positions, complete with levels, spaces, and product data standardized to ANSI/IES TM-32-24.
If a lighting design started in Revit instead, placed luminaires import into DIALux as identifiable placeholders that you can swap for real, photometric-data-backed luminaires in a few clicks. For teams running BIM pipelines across DIALux and Revit, this closes a workflow gap that previously required manual matching.
4. Intelligent Model Breakdown
A newer addition rolling out alongside evo 14 lets you break down imported, complex models step by step while preserving their original object structure and hierarchy — instead of exploding the whole model into disconnected triangles and surfaces, which used to mean hours of manual rebuilding to get usable parts back.
How to Update to DIALux evo 14
DIALux evo checks for updates automatically, but you can also download the latest installer directly:
- Go to dialux.com/en-GB/download
- Download the free installer (Windows 10/11, 64-bit)
- Before updating: back up any active projects — DIAL notes that existing projects may need to be recalculated after loading them in evo 14
- Run the installer and sign in with your DIALux ID (free to create if you don’t have one)
DIALux evo remains free to use for personal, educational, and commercial purposes. Note that since 2024, luminaires from non-Member manufacturers require either a DIALux Pro subscription or the “Unlock Non-Members” add-on; luminaires from DIALux’s 450+ Members remain free in the base version.
DIALux evo Version History (8.1 → 14)
For reference, here’s a summary of major DIALux evo releases since version 8.1. Full release notes for every version are available on DIAL’s official version history page.
- evo 14 (2026) – Room-by-room calculation, Scope Box view, native Revit Add-In, intelligent model breakdown
- evo 13 (2024–2025) – Show/hide objects in CAD views, Vietnamese language support (27 languages total), integrated luminaire data sheets in outputs, Windows 11 display fixes
- evo 12 (2024) – Drag-and-drop IFC import on the start screen, improved IFC material recognition, GLDF luminaire data import, DIALux Member-only luminaires in the free version (Pro/Unlock Non-Members introduced)
- evo 9–11 – Incremental performance, BIM/IFC, and standards-compliance improvements across releases
- evo 8.1 (January 2019) – DWG/DXF import wizard, multi-floor zone documentation, integrated help/message window, Japanese maintenance factor method (JIEG-001), speed improvements across rendering and calculation
New features:
- Integrated message window with hints and support information
- Two additional standard objects: hemisphere and cone (truncated cone)
- Allocation of luminaires located in multiple spaces can be set to a specific one for documentation
- Japanese maintenance factor method according to JIEG-001
- Import wizard for DWG/DXF files
Changes and improvements:
- Multiselection of single objects with line, field, and circle arrangements
- Imported image plans can be rescaled again via the import wizard
- Sorting of road scene results can be changed
- Images can be deleted directly in documentation
- More expressive object descriptions in the project tree
- Speed improvements in luminaire/calculation surface handling, project loading, DWG export, and rendering of documentation, false colours, and isolines
- Object allocation (storey, indoor/outdoor) now depends on the object’s position, not the active view
Bug fixes:
- Surface results documentation sizing issue
- “All” documentation template extended with luminaire parts list for exterior areas
- Visualization issue after combining light scenes
- Maintenance factor calculation issue for unassigned luminaires
- Loading issue for evo files over 7GB
- Improved import behavior for IFC, JPEG, Dialux 4, and SAT files
- Improved undo behavior for evo road
- G* class calculation issue in evo road per EN 13201:2015
- Drag & drop issues for skylights and luminaires
- Window dimensioning and ASR calculation surface scaling issues
- Element rotation visualization issue
- Road geometry duplication no longer copies arrangement names
- Translation improvements
Source : www.dial.de
Is DIALux evo 14 free?
Yes. DIALux evo remains completely free for personal, educational, and commercial use. Only access to non-Member manufacturer luminaires requires a paid Pro subscription or add-on.
Will my old projects work in DIALux evo 14?
Yes, but DIAL recommends recalculating existing projects after opening them in evo 14, since results may not carry over automatically.
Does DIALux evo run on Mac?
Not officially. DIALux evo is built for Windows (10/11, 64-bit). Mac users have reported success running it via virtualization tools like Parallels or VMware Fusion, but DIAL doesn’t provide support for Mac-based setups.
What happened to the Revit plugin?
It’s here — DIALux evo 14 ships with a native Revit Add-In for two-way IFC-based workflows between DIALux and Revit.
This page was last updated June 2026. We’ll keep it current as new DIALux evo versions are released — bookmark this page for future updates.