---
myst:
  html_meta:
    "description": "eOn v3.3.0: private Parameters accessors, span force API, string_view load, CNA from vesin pairs."
    "keywords": "eOn v3.3.0, Parameters accessors, Potential span, string_view, CNA"
---

## [v3.3.0] - 2026-09-15

Minor on `v3.2.1`. Parameters option groups are private with const
accessors. `Potential::force` has a size-checked `std::span` overload.
Load paths take `string_view`. Python CNA uses vesin pair arrays.

```{toctree}
:maxdepth: 2
:caption: Release notes

release-notes
```