Add 0.7 release article

.vscode/settings.json

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+{
+    "cSpell.words": [
+        "libadwaita",
+        "relm"
+    ]
+}

assets/css/extended/custom.css

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+
+table > tbody > tr > td {
+  min-width: 0 !important;
+}

content/posts/announcing_relm4_v0.7/index.md

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+---
+title: "Relm4 is back! Announcing version 0.7 and 0.8"
+date: 2024-03-12
+# weight: 1
+tags: ["relm4"]
+author: "Aaron Erhardt"
+showToc: true
+TocOpen: false
+draft: false
+hidemeta: false
+comments: false
+disableShare: false
+disableHLJS: false
+hideSummary: false
+ShowReadingTime: true
+ShowBreadCrumbs: true
+ShowPostNavLinks: true
+editPost:
+    URL: "https://github.com/Relm4/blog/blob/main/content"
+    Text: "Suggest Changes" # edit text
+    appendFilePath: true # to append file path to Edit link
+---
+
+I'm happy to announce Relm4 0.7 and 0.8!
+It has been some time since I last posted here and I actually even skipped the announcement of Relm4 0.6 due to lack of time.
+Fortunately, I found some time this week and am back with not one, but two releases!
+
+Because Relm4 follows the version numbers of the underlying gtk-rs crate, we decided to catch up to their recent 0.8 release and postpone any feature development to version 0.9.
+This means that version 0.7 and 0.8 of Relm4 are practically identical except for their dependencies.
+
+Check out the [full changelog](https://github.com/Relm4/Relm4/blob/main/CHANGES.md) for more information.
+
+> ## About Relm4
+> 
+> Relm4 is an idiomatic GUI library inspired by [Elm](https://elm-lang.org/) and based on [gtk4-rs](https://crates.io/crates/gtk4).
+> 
+> We believe that GUI development should be easy, productive and delightful.  
+> The [gtk4-rs](https://crates.io/crates/gtk4) crate already provides everything you need to write modern, beautiful and cross-platform applications.
+> Built on top of this foundation, Relm4 makes developing much more idiomatic, simpler and faster and enables you to become productive in just a few hours.
+
+## Factory changes
+
+Starting with Relm4 0.7, factories and components share the same builder pattern for initialization.
+This change should especially benefit beginners as it allows reusing the patterns learned while working with components.
+It also makes it easier to create reusable factories because the containing component can decide what happens with output messages of the factory and whether they need to be forwarded.
+
+<table>
+    <tr>
+        <th> Component </th> <th> Factory </th>
+    </tr>
+    <tr>
+        <td>
+
+```rust
+let component = Header::builder()
+    .launch(init_data)
+    .forward(sender, |msg| { ... });
+```
+
+</td>
+<td>
+
+```rust
+let factory = FactoryVecDeque::builder()
+    .launch(root_widget)
+    .forward(sender, |msg| { ... });
+```
+</td>
+</tr>
+</table>
+
+## More typed abstractions
+
+While the gtk4 crate provides outstanding Rust abstractions overall, sometimes it doesn't fully embrace the potential of the Rust language.
+Fortunately, to make your code more idiomatic, Relm4 adds several new typed abstractions on top of the existing ones in this release.
+After `TypedListView` was added in version 0.6, members of the community have since extended the abstractions with the new `TypedColumnView` and `TypedGridView` types.
+All three types allow you to use `gtk::ListView`, `gtk::ColumnView` and `gtk::TypedGridView` respectively without the otherwise necessary boilerplate code and also add compile-time guarantees regarding type-safety.
+
+## Relm4 icons
+
+Technically, the [relm4-icons crate](https://crates.io/crates/relm4-icons) has been out for quite some time, but it was never properly announced.
+With this crate, it becomes incredibly easy to add icons to your Relm4 and gtk-rs applications.
+You only need to add the crate, a small config file and call `initialize_icons()` in your setup code.
+While the crate ships with over 3000 ready-to-use icons and also allows you to add your own SVG icons, 
+only the configured icons will actually be bundled with your app to keep the resulting binaries small.
+
+If you're already using Relm4 icons, please be aware that starting with this release, you need to use a config file instead of feature flags. 
+This is because crates.io made the crate un-publishable when [they added new limits for the amount of feature flags](https://blog.rust-lang.org/2023/10/26/broken-badges-and-23k-keywords.html).
+While I don't think it was a nice move to ban new releases of existing crates over night, it eventually led to a new, more flexible solution.
+This new solution uses a `icons.toml` configuration file to specify which icons you need in your app.
+
+While this works great, this is still a somewhat hacked together solution because, after disallowing the use of many feature flags, Rust has no proper solution for communicating a lot of configuration options to build scripts.
+Hopefully, this gap will be filled with a new mechanism in the future.
+
+## More unification
+
+Besides factories, components also received a small, but quite noticeable change that brings more consistency.
+Previously, regular components received a reference to the root widget during initialization, but async components used an owned root widget instead to avoid lifetime problems.
+When refactoring a regular component to an async component, this caused complex error messages unless the function signatures were updated to use owned root widgets.
+By always using owned root widgets, it now takes even fewer steps to refactor between regular and async components.
+
+## Other improvements
+
+- Use native async traits instead of async-trait in v0.8
+- Add `AsyncComponentStream` to supports streams for async components
+- Add `Toaster` as an abstraction over `adw::ToastOverlay` for usage in the model of a component
+- Implement more traits for recent libadwaita widgets
+- Port the book to 0.7 and 0.8
+- Lots of other improvements and fixes
+
+## Where to get started
+
++ ⬆️ **[Migration guide](https://relm4.org/book/stable/0_6_to_0_7.html)**
++ 🏠 **[Website](https://relm4.org)**
++ ⭐ **[Repository](https://github.com/Relm4/Relm4)**
++ 📖 **[Book](https://relm4.org/book/stable)**
++ 📜 **[Rust documentation](https://docs.rs/relm4)**
++ 📨 **[Chat room](https://matrix.to/#/#relm4:matrix.org)**