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4.0

4.0
@piroor piroor tagged this 07 Mar 08:45 
* Improved performance on cases with large number of tabs. Now tabs only in the viewport are rendered.
  * Pinned tabs and unpinned (normal) tabs are now placed under separate container elements: `#pinned-tabs-container > .tabs.pinned` and `#normal-tabs-container > .virtual-scroll-container > .tabs.normal`.
  * Each rendered tab element now has `data-index` attribute corresponding to [`tabs.Tab.index`](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/tabs/Tab#index).
  * Due to this design change, customization with CSS `counter` won't be work as expected anymore. You'll need to create something helper addon to do such customizations.
* Introduce new context menu commands and other triggers to stick arbitrary tabs to edges of the tab bar. It is similar to "Pin/Unpin Tab" but sticked tab keeps its tree.
* Indicate sharing state of tabs (camera, microphone and/or screen) with icons.
* Show dropshadow before normal tabs when the tab bar is scrolled.
* Show dropshadow after normal tabs when the tab bar is not fully scrolled.
* Use cached tree structure information more aggressively on Firefox startup, if the number of tabs, pinned status, and containres are matched.
* Add ability to control tabs opened from Firefox View.
* Suppress bookmarks folder auto creation for bookmarks from tabs, when multiple bookmarks are copied via the Library or something way.
* Move descendant tabs also correctlyfollowing to their parent, when a parent tab is moved to the top level via Firefox's horizontal tab bar.
* Apply the option to place opened tabs next to the last related child correctly, when multiple tabs are opened from a pinned tab.
* Avoid unexpected restoration of blank dialog windows by Ctrl-Shift-T on Firefox 116 and later.
* Restore tree structure more correctly for reopened tabs which were closed at a time.
* Lock scroll position temporary when a tree near the tab bar end is collapsed, just like as the case when tabs are closed.
* Open local files in tabs with blob: URL when they are dropped to the tab bar, intstead of simply ignored.
* Never create needless multiple folders for bookmarks created from tabs tree.
* Most options are now treated as expert options and hidden by default.
* Many API improvements.
  * Introduce a new message type [`get-version`](https://github.com/piroor/treestyletab/wiki/API-for-other-addons#detecting-version-of-tst-itself) to know the version of TST itself.
  * Introduce new notification types [`tabs-rendered` and `tabs-unrendered`](https://github.com/piroor/treestyletab/wiki/API-for-other-addons#when-one-or-more-tabs-are-renderedun-rendered) to observe tabs' rendered state.
  * Introduce a new message type [`get-light-tree`](https://github.com/piroor/treestyletab/wiki/API-for-other-addons#apis-to-get-tree-information) to get [minimal tree item information](https://github.com/piroor/treestyletab/wiki/API-for-other-addons#data-format).
  * Introduce new values of [`states`](https://github.com/piroor/treestyletab/wiki/API-for-other-addons#data-format) to know detection result determined by TST internally.
  * Introduce new message types [`stick-tab`, `unstick-tab` and `toggle-sticky-state`](https://github.com/piroor/treestyletab/wiki/API-for-other-addons#control-sticky-state-of-tabs-at-tab-bar-edges) to control tabs' sticky state at tab bar edges.
  * Introduce new message types [`register-auto-sticky-states` and `unregister-auto-sticky-states`](https://github.com/piroor/treestyletab/wiki/API-for-other-addons#set-locked-as-collapsed-state-of-tree) to stick tabs with specific state to tab bar adges automaitcally.
  * Introduce a new notification type [`tab-sticky-state-changed`](https://github.com/piroor/treestyletab/wiki/API-for-other-addons#when-a-tab-is-sticked-or-unsticked-tofrom-tab-bar-edges) to observe a tab is sticked or unsticked.
  * [Introduce a new option `rendered:true` for the message types `get-tree` and `get-light-tree`, to get information only about rendered tabs.](https://github.com/piroor/treestyletab/wiki/API-for-other-addons#when-one-or-more-tabs-are-renderedun-rendered)
  * Support [bulk messaging to TST (sending multiple messages at once)](https://github.com/piroor/treestyletab/wiki/API-for-other-addons#abstract) and [bulk messaging from TST (receiving multiple messages at once](https://github.com/piroor/treestyletab/wiki/API-for-other-addons#bulk-messages-from-tst) for better performance.
  * Add ability to [minimize tree item information contained in notification type messages](https://github.com/piroor/treestyletab/wiki/API-for-other-addons#listening-of-notification-messages), to reduce messaging cost.
  * Introduce new keywords [`allVisibles` and `normalVisibles`](https://github.com/piroor/treestyletab/wiki/API-for-other-addons#basics-to-specify-tabs) for message types `get-tree` and `get-light-tree`, to get specific state tree items.
  * Introduce new options [`states` and `statesNot`](https://github.com/piroor/treestyletab/wiki/API-for-other-addons#basics-to-specify-tabs) for message types `get-tree` and `get-light-tree`, to get specific tree items.
  * New insertion place of extra tab contents: [`tab-above` and `tab-below`](https://github.com/piroor/treestyletab/wiki/Extra-Tab-Contents-API#how-to-insert-extra-contents) are now available.
  * Introduce new message types [`set-tooltip-text` and `clear-tooltip-text`](https://github.com/piroor/treestyletab/wiki/API-for-other-addons#set-custom-tooltip-text-to-tabs) to set arbitrary tooltip text for each tab.
  * [Notification messages of `try-expand-tree-from-attached-child`](https://github.com/piroor/treestyletab/wiki/API-for-other-addons#suppress-unintentional-expansion-of-collapsed-tree-by-tst) now has an extra property `child` corresponding to the added child tab.
* **Most of improvements at this version is sponsored by the Waterfox project / BrowserWorks Ltd. Many thanks to Alex Kontos!** ([Announcement blog entry at Waterfox project](https://www.waterfox.net/blog/waterfox-x-treestyletab/))
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