# What changed in tensorboard

> 5 changes in tensorboard 2 from its official release notes, upgrade guides and advisories: 3 breaking, 1 security. Each one cited. Sources checked 2026-10-20. HTML: https://unstale.sh/pypi/tensorboard/

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

## tensorboard 2

### Breaking changes

- The runtime dependency requirement is now >=1.74.0 and <2.0 to align with the TensorFlow 2.21 dependency stack. (2.21.0) — [release notes](https://github.com/tensorflow/tensorboard/releases/tag/2.21.0)
- The runtime dependency requirement is now >=6.31.1 and <8.0.0 to align with the TensorFlow 2.21 dependency stack. (2.21.0) — [release notes](https://github.com/tensorflow/tensorboard/releases/tag/2.21.0)
- Tooltips show at most 5 items and default to sorting by Nearest Pixel, prioritizing values closest to the cursor. (2.21.0) — [release notes](https://github.com/tensorflow/tensorboard/releases/tag/2.21.0)

### Security

- A vulnerability in the Projector plugin is fixed. (2.21.0) — [release notes](https://github.com/tensorflow/tensorboard/releases/tag/2.21.0)

### Fixes and other changes

- Runtime crashes in newer environments missing pkg_resources are fixed by migrating to standard importlib.metadata. (2.21.0) — [release notes](https://github.com/tensorflow/tensorboard/releases/tag/2.21.0)