# What changed in rison

> 5 changes in rison 2 from its official release notes, upgrade guides and advisories: 2 breaking, 1 new APIs and options. Each one cited. Sources checked 2026-10-25. HTML: https://unstale.sh/pypi/rison/

To see which of these apply to a repository, run `npx @unstale/cli init` in it.

## rison 2

### Breaking changes

- Plus is no longer quoted during Rison encoding. (2.0.0) — [release notes](https://github.com/betodealmeida/python-rison/releases/tag/v2.0.0)
- The package is published as rison instead of prison. (2.0.0) — [release notes](https://github.com/betodealmeida/python-rison/releases/tag/v2.0.0)

### New APIs and options

- Rison encoding now supports long and tuple types. (2.0.0) — [release notes](https://github.com/betodealmeida/python-rison/releases/tag/v2.0.0)

### Fixes and other changes

- Percent no longer needs to be quoted during Rison encoding. (2.0.0) — [release notes](https://github.com/betodealmeida/python-rison/releases/tag/v2.0.0)
- Handling of unmatched parentheses is improved. (2.0.0) — [release notes](https://github.com/betodealmeida/python-rison/releases/tag/v2.0.0)