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v5.0.0

Textualize/textualv5.0.0Jul 25, 2025by willmcgugan

AI Summary

A major release focusing on Markdown improvements including tables, text selection, and streaming support, plus the auto-import of speedups.

Key Highlights

  • Improved Markdown rendering with full text selection and tables.
  • Added Markdown streaming support and extension mechanism.
  • Textual speedups library now imports automatically if installed.

Breaking Changes

  • `Visual.render_strips` has a new signature (if building Visuals).
  • Component classes on Markdown moved to MarkdownBlock (if customizing CSS).

New Features

  • `get_minimal_width` to Visual protocol
  • `expand` and `shrink` to GridLayout
  • `Markdown.get_stream`
  • `textual.highlight` module
  • `MessagePump.wait_for_refresh`
  • `Widget.container_scroll_offset`
  • `Markdown.source` attribute
  • Markdown extension mechanism
  • `index` to `ListView.Selected` event
  • `layout` switch to `Static.update`

Full Release Notes

This is quite a large release! Fueled in part by my work on [Toad](https://willmcgugan.github.io/announcing-toad/)

Markdown rendering has been improved, with full text selection, prettier code blocks and tables. Plus streaming support.

<img width="1626" height="1310" alt="Screenshot 2025-07-25 at 08 37 30" src="https://github.com/user-attachments/assets/896886c1-d960-499a-a455-6e992231ee1c" />

Plenty of other fixes and additions. Thats to everyone who contributed code and issues!

There are two breaking changes (see below). These are unlikely to affect anyone, but [Semver](https://semver.org/) requires bumping the major version number.

## [5.0.0] - 2025-07-25

### Added

- Added get_minimal_width to Visual protocol https://github.com/Textualize/textual/pull/5962
- Added `expand` and `shrink` attributes to GridLayout https://github.com/Textualize/textual/pull/5962
- Added `Markdown.get_stream` https://github.com/Textualize/textual/pull/5966
- Added `textual.highlight` module for syntax highlighting https://github.com/Textualize/textual/pull/5966
- Added `MessagePump.wait_for_refresh` method https://github.com/Textualize/textual/pull/5966
- Added `Widget.container_scroll_offset` https://github.com/Textualize/textual/commit/e84600cfb31630f8b5493bf1043a4a1e7c212f7c
- Added `Markdown.source` attribute to MarkdownBlocks https://github.com/Textualize/textual/commit/e84600cfb31630f8b5493bf1043a4a1e7c212f7c
- Added extension mechanism to Markdown https://github.com/Textualize/textual/commit/e84600cfb31630f8b5493bf1043a4a1e7c212f7c
- Added `index` to `ListView.Selected` event https://github.com/Textualize/textual/pull/5973
- Added `layout` switch to Static.update https://github.com/Textualize/textual/pull/5973

### Fixed

- Fixed `TextArea` issue with the `css` theme, where the background color was stuck from the previous theme https://github.com/Textualize/textual/issues/5964

### Changed

- Improved rendering of Markdown tables (replace Rich table with grid) which allows text selection https://github.com/Textualize/textual/pull/5962
- Change look of command palette, to drop accented borders https://github.com/Textualize/textual/pull/5966
- Some style tweaks to Markdown https://github.com/Textualize/textual/commit/e84600cfb31630f8b5493bf1043a4a1e7c212f7c
- Content markup can now accept component classes when preceded by a dot, e.g. "Hello [.my_custo_style]World[/]!" https://github.com/Textualize/textual/pull/5981
- Breaking change: `Visual.render_strips` has a new signature. If you aren't explicitly building Visuals then this won't effect you. https://github.com/Textualize/textual/pull/5981
- Breaking change: The component classes on Markdown have been moved to MarkdownBlock. This won't affect you unless you have customize the Markdown CSS https://github.com/Textualize/textual/pull/5981
- The textual-speedups library will now be imported automatically if it is installed. Set `TEXTUAL_SPEEDUPS=0` to disable.