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+---
+# Copyright 2026 seL4 International
+# SPDX-License-Identifier: CC-BY-SA-4.0
+title: New seL4 release available
+img: /images/seL4.svg
+alt: seL4 logo
+dark: true
+---
+
+We're pleased to announce the release of
+
+- [seL4 17.0.0](https://docs.sel4.systems/releases/sel4/17.0.0): The seL4
+  microkernel
+- [Microkit 2.4.0](https://docs.sel4.systems/releases/microkit/2.4.0): The seL4
+  Microkit for building static-architecture systems
+- [CAmkES 3.13.1](https://docs.sel4.systems/releases/camkes/camkes-3.13.1):
+  Component Architecture for microkernel-based Embedded Systems
+- [capDL 0.6.1](https://docs.sel4.systems/releases/capdl/0.6.1): Tools for
+  generating, parsing and loading capability distribution specifications
+- [rust-sel4 6.0.0](https://github.com/seL4/rust-sel4/releases/tag/v6.0.0): Rust
+  support for seL4 userspace. See the Rust section on the
+  [seL4 docsite](https://docs.sel4.systems/projects/rust/) for more
+  information.
+
+This release focussed on fixing issues in unverified configurations of seL4, as
+well as auditing code in verified configurations that is not covered by the
+scope of seL4's formal proofs. Like previous releases, this release contains
+security relevant changes and we recommend upgrading to the latest version of
+seL4.
+
+We would like to thank Anthropic for reporting a number of these issues and for
+the constructive, actionable and useful way they were communicated. Overall,
+this audit has strengthened the security of seL4 in all parts of the kernel that
+the formal proofs do not make guarantees about.
+
+seL4 17.0.0 and the corresponding Rust support have breaking changes and will
+require updates if you are using the seL4 API directly. The CAmkES and capDL
+tool releases are backwards compatible. The Microkit contains security and bug
+fixes and has breaking changes.
+
+As always, a more detailed list of the changes and user-visible impact can be
+found in the [seL4 release
+notes](https://docs.sel4.systems/releases/sel4/17.0.0.html) and the [seL4
+docsite](https://docs.sel4.systems), together with upgrade instructions.
+
+Enjoy!