We are preparing ReoGrid V5, the next generation of our .NET spreadsheet component — and, alongside it, a new licensing and pricing model that takes effect on August 19, 2026.
Update — August 19, 2026: V5 is out, and everything below is now published. See what’s new in V5 for the release itself, pricing for the ReoGrid One licensing model, running V4 and V5 side by side for what a single license covers, and the migration guide for moving an existing project across.
ReoGrid V5 — rebuilt from the core
V5 is not an incremental update. The core has been rebuilt around a fully virtualized architecture, so the engine only ever materializes the data it actually needs.
What that means in practice:
- Faster in both WinForms and WPF. The gains come from the shared core, so neither UI stack is a second-class citizen.
- Substantially lower memory use, particularly with large workbooks — the workloads where the old architecture cost the most.
- A new platform: Avalonia. In addition to WinForms and WPF, V5 introduces support for Avalonia, bringing ReoGrid to cross-platform .NET desktop applications.
Both the migration guide and the V4 → V5 differences are published as part of the V5 documentation.
A new licensing model from August 19, 2026
Together with the V5 release, we are moving to a new licensing and pricing model on August 19, 2026.
That model is now live. The .NET editions are a single product line — ReoGrid One — sold as two SKUs, and a license is version-independent: one purchase covers both V4 and V5, with no re-issued keys. See pricing for the current figures and what each edition includes.
ReoGrid V4 is not going away. There is no end-of-sale or end-of-life planned for V4; it stays available and supported, and the same license covers it — see running V4 and V5 side by side.
Questions?
If you are planning a purchase or a rollout around this timing and want to talk it through, we are happy to help.