2025-08-20
Almost 2 years after the last release, the heapless crate has a new release. The first attempt at a 0.9.0 release was yanked due to including more breaking changes than intended. This has been fixed, and 0.9.1 has been released today.
Compared to 0.8.0, the 0.9.1 release contains a bunch of small everyday improvements and bugfixes. Most users of the library should be able to adapt with minimal changes. For more information, you can check out the changelog. Here are some of the major changes that can improve your usage of the library.
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2024-01-09
The Rust Embedded Working Group is proud to announce the release of embedded-hal version 1.0 together with the
companion crates embedded-hal-bus, embedded-hal-async and embedded-hal-nb.
Check out the repository, the API documentation and the migration guide.
The embedded-hal crates provide traits (interfaces) for using peripherals commonly available in microcontrollers
such as GPIO, UART, SPI or I2C. They allow writing drivers (for sensors, displays, actuators, network adapters, etc.) in
a generic way, so they work on any microcontroller with an embedded-hal implementation without
modifying them. It's a central piece of the Embedded Rust ecosystem, ensuring interoperability throughout.
The 1.0 release has been in the works since 2020. Now that it's out, we consider all
traits in it to be stable. The plan is to extend embedded-hal with more traits in future 1.x releases,
not doing more breaking changes (i.e. there are no plans for a 2.0 release). This will provide a stable
base for building HALs and drivers.
So, what's new in embedded-hal 1.0?
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2021-12-28
As 2021 draws to a close, we thought we'd take a look back at what's happened
over the last year in Embedded Rust, both within the working group and in the
larger community.
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