Pirros works inside Revit in two different ways, and which one you get depends on your Revit version. Both connect to the same Pirros library and the same account — the difference is what the plugin looks like and how you use it.
The two generations
Pirros in Revit (v4.x) — the current generation. Your full Pirros library opens as a dockable web panel beside your model, with four tabs: Browse, Updates, Sync, and Settings. It's the actual Pirros web app running inside Revit, so search, filters, and new features look and behave exactly as they do at app.pirros.com.
The classic plugin (v3.x) — purpose-built Revit windows and dialogs for downloading, uploading, and syncing, driven from the Pirros ribbon.
Which one applies to your Revit version
Revit version | What you get |
Revit 2027 | Pirros in Revit — the docked panel |
Revit 2026 | Pirros in Revit — the docked panel |
Revit 2025 | Pirros in Revit — the docked panel |
Revit 2024 | Pirros in Revit — the docked panel |
Revit 2023 | Classic plugin |
Revit 2022 | Classic plugin |
Revit 2021 | Classic plugin |
Revit 2020 | Classic plugin |
Revit 2019 and earlier | Not supported |
The classic plugin is fully supported. If you're on Revit 2020 through 2023, the classic plugin is the supported way to use Pirros inside Revit and continues to receive fixes. There is nothing you need to do, and nothing is being taken away from you.
Your Revit version sets the ceiling, not the date you get it. Pirros in Revit is enabled firm by firm. If you're on Revit 2024, 2025, or 2026 and still see the classic plugin, your firm hasn't been switched on yet — nothing is wrong with your install. Your Pirros administrator can ask us to enable it early.
Mixed-version firms are normal and fully supported. If your team runs Revit 2023 and Revit 2025 side by side, the 2023 machines use the classic plugin and the 2025 machines use Pirros in Revit — against the same library, at the same time. One installer handles every Revit version on a machine; you don't need to choose.
How to tell which one you're running
The quickest check is what happens when you open Pirros:
A panel docks to the side of your Revit window, with Browse / Updates / Sync / Settings tabs → Pirros in Revit.
Separate dialog windows open for downloading and uploading → the classic plugin.
To confirm by version number:
In Revit, click the Pirros tab in the ribbon.
Open Settings (gear icon).
Read the version in the About section — 4.x is Pirros in Revit, 3.x or lower is the classic plugin.
What changes when you move to Pirros in Revit
One panel instead of several windows. Browsing, inserting, updating, and syncing all happen in the docked panel.
Drag and drop. Drag content straight from Browse into your model, or use Insert.
New features arrive without a plugin update. The panel is the live web app, so improvements show up as they ship.
Your library is unchanged. Both generations read and write the same content. Details and families tracked by the classic plugin are recognised by Pirros in Revit and stay tracked — there's no migration, no re-upload, and nothing to re-link.
Where APS uploads fit in
Uploading through the Autodesk Platform Services (APS) integration is a completely separate mechanism from either plugin, and it is not affected by which plugin generation you're on. APS uploads happen in the Pirros web app — you point Pirros at a Revit file and it processes the file without Revit or any plugin being involved.
So APS is not a third plugin generation, and it isn't an alternative to Pirros in Revit. It's a different route for getting models into Pirros — useful when you don't want to open them in Revit at all, including files in a partner's ACC or BIM 360 account.
Frequently Asked Questions
Q: We're on Revit 2023. Will we get Pirros in Revit?
A: Not currently. Revit 2023 and older use the classic plugin, and there is no timeline for bringing Pirros in Revit to those versions. The classic plugin remains fully supported. If you want the docked panel, moving a project to Revit 2024 or newer is the route.
Q: Is the classic plugin being discontinued?
A: No. It's the supported plugin for Revit 2020 through 2023 and continues to receive fixes.
Q: Do I have to uninstall the classic plugin first?
A: No. The installer handles the change for each Revit version on your machine.
Q: Will our library, projects, or history change?
A: No. Both generations work against the same Pirros library.
Q: Does Pirros in Revit work offline?
A: No. The panel is the live Pirros web app and needs an internet connection — the same as the classic plugin.
Q: Is this the same thing as Mira?
A: No — they're separate products with separate installers, and you can run both at once. Pirros in Revit brings your firm's detail and family library into a Revit panel. Mira is an AI agent that reads your model and makes changes for you when you ask in plain English. Mira also has narrower Revit support — it requires Revit 2025 or newer. Neither product requires the other. See Meet Mira: The AI Agent for Revit.
Q: Which one does support need to know about when I report a problem?
A: Tell us your Revit version and the plugin version from Settings → About. That tells us which generation you're on and saves a round trip.