# What changed in marimo-lens

> 27 changes in marimo-lens 0.0 to 0.2 from its official release notes, upgrade guides and advisories: 1 breaking, 8 new APIs and options. Each one cited. Sources checked 2026-11-15. HTML: https://unstale.sh/pypi/marimo-lens/

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

## marimo-lens 0.2

### Breaking changes

- Streamlines agent onboarding; the release marks this as a breaking change. (0.2.0) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.2.0)

### New APIs and options

- Lens describes the media part a target shows. (0.2.4) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.2.4)

### Behavior and default changes

- Lens decides when marimo mounts it. (0.2.3) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.2.3)
- Support marimo pair agents across notebooks and restarts. (0.2.3) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.2.3)
- Notebook cells without output can now be selected. (0.2.2) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.2.2)
- Supports dragging to select regions on mobile. (0.2.0) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.2.0)

### Fixes and other changes

- Lens explains failed selection images. (0.2.4) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.2.4)
- Lens remains available on fullscreen outputs. (0.2.4) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.2.4)
- The dock can reach the whole visible notebook. (0.2.3) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.2.3)
- Duplicate Lens views are made unobtrusive. (0.2.3) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.2.3)
- Lens selections now stay below marimo application chrome. (0.2.1) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.2.1)
- Aligns history item metadata. (0.2.0) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.2.0)

## marimo-lens 0.1

### New APIs and options

- Views can define Lens selection regions. (0.1.2) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.1.2)
- Interactive notebook walkthroughs are available to guide users through notebooks. (0.1.1) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.1.1)
- Custom views can use rich selection context. (0.1.0) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.1.0)

### Behavior and default changes

- The Lens dock can be moved. (0.1.1) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.1.1)
- The Lens dock can be positioned within embedded notebook viewports. (0.1.1) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.1.1)

### Fixes and other changes

- The dock no longer snaps back after fast drags. (0.1.1) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.1.1)

## marimo-lens 0.0

### New APIs and options

- Notebook values can now be traced. (0.0.10) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.0.10)
- Selectable elements can now be labeled. (0.0.10) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.0.10)
- DOM targets can now be configured. (0.0.7) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.0.7)
- The Lens agent skill is packaged for developers to use. (0.0.7) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.0.7)

### Fixes and other changes

- Validated docs deployment paths and cold notebook startup. (0.0.9) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.0.9)
- Hardened Lens context and notebook interactions. (0.0.9) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.0.9)
- Preserves the DOM target highlight on hover. (0.0.8) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.0.8)
- Routes selection feedback by document. (0.0.8) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.0.8)
- Python 3.10 is supported, allowing developers to use marimo-lens with that Python version. (0.0.7) — [release notes](https://github.com/marimo-team/marimo-lens/releases/tag/v0.0.7)