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Release 0.34.0 - More Ui, less Context (#8028)

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Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
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Lucas Meurer
2026-03-26 12:15:41 +01:00
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CHANGELOG.md
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@@ -14,6 +14,128 @@ This file is updated upon each release.
Changes since the last release can be found at <https://github.com/emilk/egui/compare/latest...HEAD> or by running the `scripts/generate_changelog.py` script.
## 0.34.0 - 2026-03-26
### Highlights from this release
- Sharper text unlocked by switching font rendering crate to [`skrifa`](https://crates.io/crates/skrifa)
- Fade out edges of `ScrollArea`s
- Use `Ui` as the main entrypoint
### Skrifa and font hinting
The font rendering backend was switched from `ab_glyph` to `skrifa` + `vello_cpu`. This enabled us support
font hinting and variations. It also paves the way for more font improvements in the future, like support for color
emojis and adding helpers for variations like `RichText::bold`.
Font hinting makes text more clear (look at the =):
https://github.com/user-attachments/assets/ea9151ec-869f-4c05-ab59-836114683417
We now support setting variable font parameters:
https://github.com/user-attachments/assets/0febde1c-ebf6-4d85-8f96-86ec0f934ecf
(Unfortunately there is currently a bug with variations, meaning changing them live like this won't work in practise.
There is a [draft PR](https://github.com/emilk/egui/pull/8029) to fix it, but it didn't make the release)
* Replace ab_glyph with Skrifa + vello_cpu; enable font hinting [#7694](https://github.com/emilk/egui/pull/7694) by [@valadaptive](https://github.com/valadaptive)
* Add font variations API [#7859](https://github.com/emilk/egui/pull/7859) by [@valadaptive](https://github.com/valadaptive)
### More `Ui`, less `Context`
egui has long had a confusing overlap in responsibilities between `Context` and `Ui`.
In particular, you could add panels to either one (or both!).
In this release, we switch from having `Context` be the main entrypoint, and instead provide whole-app `Ui`.
In egui we've replaced `Context::run` with `Context::run_ui`, and changed viewports to be given a `&mut Ui` instead of `Context`.
In `eframe` we've deprecated `App::update` replaced it with `App::ui` (which provides a `&mut Ui` instead of a `&Context`).
In addition to this, `Ui` now derefs to `Context`, so all code like `ui.ctx().input(…)` can now be written `ui.input(…)`.
This means you are much less likely to have to use naked `Context`s.
`Context` can still be useful though, since they implement `Clone` and can be sent to other threads so you can call `.request_repaint` on them.
* Add `Context::run_ui` [#7736](https://github.com/emilk/egui/pull/7736) by [@emilk](https://github.com/emilk)
* Add `Deref<Target = Context>` for `Ui` [#7770](https://github.com/emilk/egui/pull/7770) by [@emilk](https://github.com/emilk)
* Replace `App::update` with `fn logic` and `fn ui` [#7775](https://github.com/emilk/egui/pull/7775) by [@emilk](https://github.com/emilk)
* Rename `Context::style` to `global_style`; avoid confusion w/ `Ui::style` [#7772](https://github.com/emilk/egui/pull/7772) by [@emilk](https://github.com/emilk)
* Rename functions in `Context` to avoid confusion [#7773](https://github.com/emilk/egui/pull/7773) by [@emilk](https://github.com/emilk)
* Viewports: give the caller a `Ui` instead of `Context` [#7779](https://github.com/emilk/egui/pull/7779) by [@emilk](https://github.com/emilk)
### Changed panel API
As part of the above work, we have unified the panel API.
`SidePanel` and `TopBottomPanel` are deprecated, replaced by a single `Panel`.
Furthermore, it is now deprecated to use panels directly on `Context`. Use the `show_inside` functions instead, acting on `Ui`s.
This unification and simplification will make it easier to maintain and improve panels going forward.
* Add `Panel` to replace `SidePanel` and `TopBottomPanel` [#5659](https://github.com/emilk/egui/pull/5659) by [@sharky98](https://github.com/sharky98)
* Deprecate using `Panel` directly on a `Context` [#7781](https://github.com/emilk/egui/pull/7781) by [@emilk](https://github.com/emilk)
* Deprecate `CentralPanel::show` [#7783](https://github.com/emilk/egui/pull/7783) by [@emilk](https://github.com/emilk)
* Deprecate `Context::used_size` and `Context::available_rect` [#7788](https://github.com/emilk/egui/pull/7788) by [@emilk](https://github.com/emilk)
### ⭐ Added
* Add `is_scrolling`/`is_smooth_scrolling` util, checking for active scroll action [#7669](https://github.com/emilk/egui/pull/7669) by [@IsseW](https://github.com/IsseW)
* Allow multiple atoms in `Button::shortcut_text` and `right_text` [#7696](https://github.com/emilk/egui/pull/7696) by [@emilk](https://github.com/emilk)
* Add `ScrollArea::content_margin` [#7722](https://github.com/emilk/egui/pull/7722) by [@emilk](https://github.com/emilk)
* Per-widget style [#7667](https://github.com/emilk/egui/pull/7667) by [@AdrienZianne](https://github.com/AdrienZianne)
* Plugin: export `TypedPluginGuard` and `TypedPluginHandle` [#7780](https://github.com/emilk/egui/pull/7780) by [@apekros](https://github.com/apekros)
* Add `ViewportInfo::occluded` and `visible` [#7948](https://github.com/emilk/egui/pull/7948) by [@emilk](https://github.com/emilk)
* Add `Atom` prefix/suffix support to `DragValue` [#7949](https://github.com/emilk/egui/pull/7949) by [@lucasmerlin](https://github.com/lucasmerlin)
* ⚠️ Atom improvements: `Atom::id`, `align`, `closure`, `max_size` [#7958](https://github.com/emilk/egui/pull/7958) by [@lucasmerlin](https://github.com/lucasmerlin)
* Add `DebugOptions::warn_if_rect_changes_id` [#7984](https://github.com/emilk/egui/pull/7984) by [@emilk](https://github.com/emilk)
* `TextEdit` `Atom` prefix/suffix [#7587](https://github.com/emilk/egui/pull/7587) by [@lucasmerlin](https://github.com/lucasmerlin)
* Add `Button::left_text` [#7955](https://github.com/emilk/egui/pull/7955) by [@rustbasic](https://github.com/rustbasic)
* Add `Response::parent_id` [#8010](https://github.com/emilk/egui/pull/8010) by [@lucasmerlin](https://github.com/lucasmerlin)
* Add `Context::text_edit_focused` [#8014](https://github.com/emilk/egui/pull/8014) by [@emilk](https://github.com/emilk)
* Add `Context::time` [#8017](https://github.com/emilk/egui/pull/8017) by [@emilk](https://github.com/emilk)
* Add `Ui::is_tooltip` [#8016](https://github.com/emilk/egui/pull/8016) by [@emilk](https://github.com/emilk)
* Add `UiStack::bg_color` [#8020](https://github.com/emilk/egui/pull/8020) by [@emilk](https://github.com/emilk)
* Make `egui::IdSet` public [#8019](https://github.com/emilk/egui/pull/8019) by [@lucasmerlin](https://github.com/lucasmerlin)
* Add raw key methods to TypeIdMap [#8007](https://github.com/emilk/egui/pull/8007) by [@AlexanderSchuetz97](https://github.com/AlexanderSchuetz97)
### 🔧 Changed
* Remove `accesskit` feature and always depend on `accesskit` [#7701](https://github.com/emilk/egui/pull/7701) by [@emilk](https://github.com/emilk)
* Update MSRV from 1.88 to 1.92 [#7793](https://github.com/emilk/egui/pull/7793) by [@JasperBRiedel](https://github.com/JasperBRiedel)
* Improve modifier handling when scrolling [#7678](https://github.com/emilk/egui/pull/7678) by [@emilk](https://github.com/emilk)
* Apply preferred font weight when loading variable fonts [#7790](https://github.com/emilk/egui/pull/7790) by [@pmnxis](https://github.com/pmnxis)
* Make scroll bars and resize splitters visible to accesskit [#7804](https://github.com/emilk/egui/pull/7804) by [@emilk](https://github.com/emilk)
* Allow moving existing widgets to the top of interaction stack [#7805](https://github.com/emilk/egui/pull/7805) by [@emilk](https://github.com/emilk)
* Slightly change interact behavior around thin splitters [#7806](https://github.com/emilk/egui/pull/7806) by [@emilk](https://github.com/emilk)
* Move window resize interaction to be over contents [#7807](https://github.com/emilk/egui/pull/7807) by [@emilk](https://github.com/emilk)
* Don't expand widgets on hover [#7808](https://github.com/emilk/egui/pull/7808) by [@emilk](https://github.com/emilk)
* Make `FrameCache::get` return a reference instead of cloning the cached value [#7834](https://github.com/emilk/egui/pull/7834) by [@KonaeAkira](https://github.com/KonaeAkira)
* Update selected dependencies [#7920](https://github.com/emilk/egui/pull/7920) by [@oscargus](https://github.com/oscargus)
* Make `Galley::pos_from_layout_cursor` `pub` [#7864](https://github.com/emilk/egui/pull/7864) by [@dionb](https://github.com/dionb)
* Update accesskit to 0.24.0 (and related deps) [#7850](https://github.com/emilk/egui/pull/7850) by [@delan](https://github.com/delan)
* Quit on Ctrl-Q [#7985](https://github.com/emilk/egui/pull/7985) by [@emilk](https://github.com/emilk)
* Fade out the edges of `ScrollAreas` [#8018](https://github.com/emilk/egui/pull/8018) by [@emilk](https://github.com/emilk)
### 🔥 Removed
* Remove `CacheTrait::as_any_mut` [#7833](https://github.com/emilk/egui/pull/7833) by [@emilk](https://github.com/emilk)
### 🐛 Fixed
* Fix: ensure `CentralPanel::show_inside` allocates space in parent [#7778](https://github.com/emilk/egui/pull/7778) by [@emilk](https://github.com/emilk)
* Heed constrain rect when auto-positioning windows [#7786](https://github.com/emilk/egui/pull/7786) by [@emilk](https://github.com/emilk)
* Fix jitter when hovering edge of scroll area close to resize splitter [#7803](https://github.com/emilk/egui/pull/7803) by [@emilk](https://github.com/emilk)
* Don't focus Areas, Windows and ScrollAreas [#7827](https://github.com/emilk/egui/pull/7827) by [@lucasmerlin](https://github.com/lucasmerlin)
* Fix backspacing leaving last character in IME prediction not removed on macOS native and Safari [#7810](https://github.com/emilk/egui/pull/7810) by [@umajho](https://github.com/umajho)
* Implemented distance threshold for double/triple clicks [#7817](https://github.com/emilk/egui/pull/7817) by [@bl4ze4447](https://github.com/bl4ze4447)
* Fix `CentralPanel::show_inside_dyn` to round `panel_rect` [#7868](https://github.com/emilk/egui/pull/7868) by [@ripopov](https://github.com/ripopov)
* Stop ctrl+arrow etc from moving focus [#7897](https://github.com/emilk/egui/pull/7897) by [@emilk](https://github.com/emilk)
* Fix scroll area not consuming scroll events [#7904](https://github.com/emilk/egui/pull/7904) by [@lucasmerlin](https://github.com/lucasmerlin)
* Pass in an explicit id in `UiBuilder`, to avoid wrapping passed in ids with Id::new() [#7925](https://github.com/emilk/egui/pull/7925) by [@lucasmerlin](https://github.com/lucasmerlin)
* Fix crash when dragging a DragValue through small floats [#7939](https://github.com/emilk/egui/pull/7939) by [@Fyrecean](https://github.com/Fyrecean)
* Fix emoji icon font [#7940](https://github.com/emilk/egui/pull/7940) by [@Jhynjhiruu](https://github.com/Jhynjhiruu)
* Fixes the overly aggressive overflow elision in `truncate()` and similar for os scaling other than 100% [#7867](https://github.com/emilk/egui/pull/7867) by [@RndUsr123](https://github.com/RndUsr123)
* Fix text color when selecting newline character [#7951](https://github.com/emilk/egui/pull/7951) by [@emilk](https://github.com/emilk)
* Fix: repaint on drag-and-drop files [#7953](https://github.com/emilk/egui/pull/7953) by [@emilk](https://github.com/emilk)
* Fix instable IDs following animated panels [#7994](https://github.com/emilk/egui/pull/7994) by [@emilk](https://github.com/emilk)
* Enables every combination of `TextEdit` and `LayoutJob` alignments [#7831](https://github.com/emilk/egui/pull/7831) by [@RndUsr123](https://github.com/RndUsr123)
* Fix `horizontal_wrapping` row height after using `text_edit_multiline` [#8000](https://github.com/emilk/egui/pull/8000) by [@optozorax](https://github.com/optozorax)
* Fix menu keyboard toggle for open submenus [#7957](https://github.com/emilk/egui/pull/7957) by [@fjkorf](https://github.com/fjkorf)
* Fix: `Visuals::interact_cursor` support in `Button` [#7986](https://github.com/emilk/egui/pull/7986) by [@mango766](https://github.com/mango766)
### 🚀 Performance
* Shrink the byte-size of `Response` slightly [#8011](https://github.com/emilk/egui/pull/8011) by [@emilk](https://github.com/emilk)
## 0.33.3 - 2025-12-11
* Treat `.` as a word-splitter in text navigation [#7741](https://github.com/emilk/egui/pull/7741) by [@emilk](https://github.com/emilk)
* Change text color of selected text [#7691](https://github.com/emilk/egui/pull/7691) by [@emilk](https://github.com/emilk)