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+title = "This Month in Rust OSDev: September 2025"
+date = 2025-10-09
+
+[extra]
+month = "September 2025"
+editors = ["phil-opp"]
++++
+
+Welcome to a new issue of _"This Month in Rust OSDev"_. In these posts, we give a regular overview of notable changes in the Rust operating system development ecosystem.
+
+<!-- more -->
+
+This series is openly developed [on GitHub](https://github.com/rust-osdev/homepage/). Feel free to open pull requests there with content you would like to see in the next issue. If you find some issues on this page, please report them by [creating an issue](https://github.com/rust-osdev/homepage/issues/new) or using our <a href="#comment-form">_comment form_</a> at the bottom of this page.
+
+<!--
+    This is a draft for the upcoming "This Month in Rust OSDev (September 2025)" post.
+    Feel free to create pull requests against the `next` branch to add your
+    content here.
+    Please take a look at the past posts on https://rust-osdev.com/ to see the
+    general structure of these posts.
+-->
+
+## Announcements, News, and Blog Posts
+
+Here we collect news, blog posts, etc. related to OS development in Rust.
+
+<!--
+Please follow this template:
+
+- [Title](https://example.com)
+  - (optional) Some additional context
+-->
+
+- [Redox OS: Development Priorities for 2025/26](https://www.redox-os.org/news/development-priorities-2025-09/)
+- [This Month in Redox - September 2025](https://www.redox-os.org/news/this-month-250930/)
+- [Upcoming Rust language features for kernel development](https://lwn.net/SubscriberLink/1039073/abf96f38b178f988/)
+- [Kernel hackers at Cauldron, 2025 edition](https://lwn.net/SubscriberLink/1039784/d2548814efb78046/)
+- [Linting Rust code in the kernel](https://lwn.net/Articles/1038750/)
+- [Tracking trust with Rust in the kernel](https://lwn.net/Articles/1034603/)
+- [MOROS 0.12.0](https://github.com/vinc/moros/releases/tag/v0.12.0)
+- [blazesym 0.2 stable release: batteries included address symbolization](https://github.com/libbpf/blazesym/discussions/1318)
+- [Building a tiling window manager for macOS in Rust](https://www.reddit.com/r/rust/comments/1nimfdf/building_a_tiling_window_manager_for_macos_in_rust/)
+- Video: [(Kernel) Task Switching in Rust — by Jayden Qi — Seattle Rust User Group](https://www.youtube.com/watch?v=JP4-JJefY_A)
+
+## Infrastructure and Tooling
+
+In this section, we collect recent updates to `rustc`, `cargo`, and other tooling that are relevant to Rust OS development.
+
+<!--
+    Please use the following template:
+
+- [Title](https://example.com)
+  - (optional) Some additional context
+-->
+
+- [This Development-cycle in Cargo: 1.90](https://blog.rust-lang.org/inside-rust/2025/10/01/this-development-cycle-in-cargo-1.90/)
+- [Allow `&raw [mut | const]` for union field in safe code](https://github.com/rust-lang/rust/pull/141469)
+
+## `rust-osdev` Projects
+
+In this section, we give an overview of notable changes to the projects hosted under the [`rust-osdev`](https://github.com/rust-osdev/about) organization.
+
+<!--
+    Please use the following template:
+
+    ### [`repo_name`](https://github.com/rust-osdev/repo_name)
+    <span class="maintainers">Maintained by [@maintainer_1](https://github.com/maintainer_1)</span>
+
+    The `repo_name` crate ...<<short introduction>>...
+
+    We merged the following changes this month:
+    <<changelog, either in list or text form>>
+-->
+
+### [`bootloader`](https://github.com/rust-osdev/bootloader)
+<span class="maintainers">Maintained by [@phil-opp](https://github.com/phil-opp) and [@Freax13](https://github.com/orgs/rust-osdev/people/Freax13)</span>
+
+The `bootloader` crate implements a custom Rust-based bootloader for easy loading of 64-bit ELF executables. This month, we merged the following fix:
+
+- [Fix: `target-pointer-width` field now expects an integer](https://github.com/rust-osdev/bootloader/pull/516)
+- [Release `v0.11.12`](https://github.com/rust-osdev/bootloader/pull/517)
+- [Fix(v0.9): target-pointer-width field now expects an integer](https://github.com/rust-osdev/bootloader/pull/518)
+
+
+### [`uefi-rs`](https://github.com/rust-osdev/uefi-rs)
+<span class="maintainers">Maintained by [@GabrielMajeri](https://github.com/GabrielMajeri), [@nicholasbishop](https://github.com/nicholasbishop), and [@phip1611](https://github.com/phip1611)</span>
+
+`uefi` makes it easy to develop Rust software that leverages safe, convenient,
+and performant abstractions for UEFI functionality.
+
+We merged the following PRs this month:
+
+- [test-runner: Add example of using the Input protocol](https://github.com/rust-osdev/uefi-rs/pull/1755)
+- [style: misc clippy fixes](https://github.com/rust-osdev/uefi-rs/pull/1760)
+- [style: cargo doc fixes and improvements](https://github.com/rust-osdev/uefi-rs/pull/1759)
+- [uefi: memory safety fixes (UB!)](https://github.com/rust-osdev/uefi-rs/pull/1758)
+- [uefi: doc: Parameters -> Arguments](https://github.com/rust-osdev/uefi-rs/pull/1764)
+- [Remove unnecessary unsafe block in example](https://github.com/rust-osdev/uefi-rs/pull/1765)
+- [uefi: remove support for unstable allocator_api feature](https://github.com/rust-osdev/uefi-rs/pull/1763)
+
+<!-- - [chore(deps): lock file maintenance](https://github.com/rust-osdev/uefi-rs/pull/1762) -->
+<!-- - [fix(deps): update rust crate serde_json to v1.0.145](https://github.com/rust-osdev/uefi-rs/pull/1767) -->
+<!-- - [chore(deps): update rust crate trybuild to v1.0.111](https://github.com/rust-osdev/uefi-rs/pull/1766) -->
+
+Thanks to [@BrokenC1oud](https://github.com/BrokenC1oud) for their contribution!
+
+
+### [`virtio-spec-rs`](https://github.com/rust-osdev/virtio-spec-rs)
+<span class="maintainers">Maintained by [@mkroening](https://github.com/mkroening)</span>
+
+The `virtio-spec` crate provides definitions from the Virtual I/O Device (VIRTIO) specification.
+This project aims to be unopinionated regarding actual VIRTIO drivers that are implemented on top of this crate.
+
+We merged the following PRs this month:
+
+- [feat: add traditional mem balloon device](https://github.com/rust-osdev/virtio-spec-rs/pull/6)
+- [chore: release version 0.3.2](https://github.com/rust-osdev/virtio-spec-rs/pull/10)
+
+Thanks to [@hcsch](https://github.com/hcsch) for their contribution!
+
+
+
+## Other Projects
+
+In this section, we describe updates to Rust OS projects that are not directly related to the `rust-osdev` organization. Feel free to [create a pull request](https://github.com/rust-osdev/homepage/pulls) with the updates of your OS project for the next post.
+
+<!--
+    Please use the following template:
+
+    ### [`owner_name/repo_name`](https://github.com/rust-osdev/owner_name/repo_name)
+    <span class="maintainers">(Section written by [@your_github_name](https://github.com/your_github_name))</span>
+
+    ...<<your project updates>>...
+-->
+
+
+<!-- <span class="gray">No projects updates were submitted this month.</span> -->
+
+### [`phil-opp/blog_os`](https://github.com/phil-opp/blog_os)
+<span class="maintainers">(Section written by [@phil-opp](https://github.com/phil-opp))</span>
+
+We merged the following changes to the [_Writing an OS in Rust_](https://os.phil-opp.com/) blog this month:
+
+- [Update post texts to Rust 2024](https://github.com/phil-opp/blog_os/pull/1432) (thanks to [@thaliaarchi](https://github.com/thaliaarchi)!)
+- [Fix: `target-pointer-width` field now expects an integer](https://github.com/phil-opp/blog_os/pull/1436)
+  - [Update blog for `target-pointer-width` change](https://github.com/phil-opp/blog_os/pull/1437)
+- [Translate post 12 'Async/Await' into Russian](https://github.com/phil-opp/blog_os/pull/1439) (thanks to [@TakiMoysha](https://github.com/TakiMoysha)!)
+- [Fix(post-02) Korean translation and typo](https://github.com/phil-opp/blog_os/pull/1440) (thanks to [reddevilmidzy](https://github.com/reddevilmidzy)!)
+
+## Join Us?
+
+Are you interested in Rust-based operating system development? Our `rust-osdev` organization is always open to new members and new projects. Just let us know if you want to join! A good way for getting in touch is our [Zulip chat](https://rust-osdev.zulipchat.com).