# Zellij v0.45.1 — Release v0.45.1

- Product: Zellij (https://whatsnew.fyi/product/zellij)
- Vendor: Zellij
- Date: 2026-08-28
- Version: v0.45.1
- Original notes: https://github.com/zellij-org/zellij/releases/tag/v0.45.1
- Permalink: https://whatsnew.fyi/product/zellij/releases/v0.45.1

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **fixed** — Nested session detection now works over SSH without having to forward environment variables
- **added** — Add scroll_mode_sync configuration option to opt-out of mouse scrolling entering scroll mode
- **added** — Add explicit_theme_hue configuration option to set a light or dark theme when the system theme is unknown
- **added** — Support starting a new session in the foreground or background with a specific running command using zellij attach -c or zellij attach -b
- **fixed** — Fixed notification parsing issues with OSC9 that caused excess notifications in some cases
- **fixed** — Fixed kitty image protocol issues with clearing on stacked panes and not working until first resize

This is a small patch release (mostly) set to address some issues discovered in the latest `0.45.0`.

###### Notable changes
1. The nested session detection now works over SSH without having to forward environment variables
2. It's now possible to opt-out of the newly introduced behavior, where scrolling with the mouse inside a pane enters scroll mode. To do so, add `scroll_mode_sync false` to the configuration.
3. It's now possible to set an explicit theme hue in the config (i.e. dark or light) that will be used if the system doesn't know which theme we're in. To do so, add `explicit_theme_hue light # or dark` to the config.
4. New feature: it's now possible to start a new session in the foreground or background with a specific running command instead of the default terminal. `zellij attach -c foo -- htop` for foreground `zellij attach -b foo --htop` for background.
5. Some issues fixed with notification parsing specifically regarding OSC9 which overloaded the existing OSC99 notification spec (this manifested for some users as excess notifications when saving a file in nvim for example)
6. Fixed some issues with the kitty image protocol clearing on stacked panes and not working until first resize

**Full Changelog**: https://github.com/zellij-org/zellij/compare/v0.45.0...v0.45.1

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