> For the complete documentation index, see [llms.txt](https://docs.pixiebrix.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pixiebrix.com/release-notes/release-notes-archive/release-1.7.0.md).

# Release 1.7.0

✨ Enhancements

* Support for nesting bricks in the Page Editor including If/Else, Try/Except, Looping, and multi-brick Document Builder sub-panels and actions
* Document Builder UI overhaul, including element formatting controls, outline view, drag and drop, and more!
* Add new trigger types: Selection Changed, Page State Changed, and Custom Event ([#3554](https://github.com/pixiebrix/pixiebrix-extension/pull/3563))
* Add new triggers for sidebar panels: Selection Changed, Page State Changes, Custom Event, and Manual
* Revised “Add Brick” model layout in the Page Editor with categories ([#3541](https://github.com/pixiebrix/pixiebrix-extension/pull/3541))

### 🐛 Bug Fixes

* Eliminate flickering when rendering Sidebar panels ([#3571](https://github.com/pixiebrix/pixiebrix-extension/pull/3571))

### 🧱 New/Updated Bricks

* The new “Emit Custom Event” brick `@pixiebrix/event` allows you to dispatch a custom event with data. You can receive these events the new “Custom Event” trigger ([#3564](https://github.com/pixiebrix/pixiebrix-extension/pull/3564))
* 🎲 Generate random numbers with the `@pixiebrix/random` brick
* 🌳 Control flow bricks: If-Else, Try-Except, Retry, For-Each, and For-Each Element
* The Show Sidebar brick now automatically shows a panel from the current blueprint. You can additionally specify a specific panel to show ([#3566](https://github.com/pixiebrix/pixiebrix-extension/pull/3567))

### 🎨 User Experience

* Automatically switch between Sidebar panels when working in the Page Editor ([#3566](https://github.com/pixiebrix/pixiebrix-extension/pull/3567))
* Improved look and feel of cancelled and errored Sidebar Panels


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