Check out the announcement blog post and the migration guide.

Changes since v1.0.0-rc.3:

• gpio: remove ToggleableOutputPin, move toggle() to StatefulOutputPin.

• gpio: require &mut self in InputPin and StatefulOutputPin.

• Minor document fixes.
• Add #[inline] hints to most of embedded-hal functions.
• pwm: rename get_max_duty_cycle to max_duty_cycle.
• delay: Rename DelayUs to DelayNs
• delay: Add DelayNs::delay_ns()
• delay: Add default impls of delay_ms and delay_us based on delay_ns.
• delay: Make the default impl of delay_ms more efficient, it now does less calls to the underlying delay_ns (previously delay_us).
• spi: Rename Operation::DelayUs to Operation::DelayNs, with nanosecond precision.

• The Minimum Supported Rust Version (MSRV) is now 1.60.0
• Add optional defmt 0.3 support.
• Remove serial traits, the replacement is the embedded-io crate.
• Added + ?Sized to all blanket impls.

• Updated embedded-hal to version 1.0.0-rc.1.
• Added + ?Sized to all blanket impls.

• Updated embedded-hal, embedded-hal-async to version 1.0.0-rc.1.
• The Minimum Supported Rust Version (MSRV) is now 1.60.0
• Added embedded-hal-async support to SPI ExclusiveDevice.
• Added methods to access the inner bus to SPI ExclusiveDevice.
• Add optional defmt 0.3 support.

• Updated embedded-hal to version 1.0.0-rc.1.
• Add optional defmt 0.3 support.
• Remove serial traits, the replacement is the embedded-io crate.
• Added + ?Sized to all blanket impls.
• Moved ExclusiveDevice to embedded-hal-bus.

*** This is (also) an alpha release with breaking changes (sorry) ***

Added

• spi: added Operation::DelayUs(u32).

Removed

• spi: removed read-only and write-only traits.

Changed

• Updated embedded-hal to version 1.0.0-alpha.11.

Changed

• Updated embedded-hal to version 1.0.0-alpha.11.