diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5a103ba51..4f4af1384 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,9 +7,14 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
-### Changed
 
+## [v1.0.0-alpha.6] - 2021-11-19
+
+*** This is (also) an alpha release with breaking changes (sorry) ***
+
+### Changed
 - Use `u8` as default SPI as Serial Word type
+- The Minimum Supported Rust Version (MSRV) is now 1.46.0
 
 ### Added
 - Added `Can` Controller Area Network traits.
@@ -17,11 +22,6 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
   implement these `Error` traits, which implies providing a conversion to a common
   set of error kinds. Generic drivers using these interfaces can then convert the errors
   to this common set to act upon them.
-- The `NoAcknowledgeAddress` and `NoAcknowledgeData` variants of the I2C `Error`
-  trait have been merged into `NoAcknowledge` with a `NoAcknowledgeSource` field
-  to differentiate between the two events. An additional `Unknown` variant is
-  provided in `NoAcknowledgeSource` for devices that can't differentiate between
-  the two events.
 
 ### Removed
 - Removed `DelayMs` in favor of `DelayUs` with `u32` as type for clarity.
@@ -193,7 +193,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 Initial release
 
-[Unreleased]: https://github.com/rust-embedded/embedded-hal/compare/v1.0.0-alpha.5...HEAD
+[Unreleased]: https://github.com/rust-embedded/embedded-hal/compare/v1.0.0-alpha.6...HEAD
+[v1.0.0-alpha.6]: https://github.com/rust-embedded/embedded-hal/compare/v1.0.0-alpha.5...v1.0.0-alpha.6
 [v1.0.0-alpha.5]: https://github.com/rust-embedded/embedded-hal/compare/v1.0.0-alpha.4...v1.0.0-alpha.5
 [v1.0.0-alpha.4]: https://github.com/rust-embedded/embedded-hal/compare/v1.0.0-alpha.3...v1.0.0-alpha.4
 [v1.0.0-alpha.3]: https://github.com/rust-embedded/embedded-hal/compare/v1.0.0-alpha.2...v1.0.0-alpha.3
diff --git a/Cargo.toml b/Cargo.toml
index 38266fc0a..53a76b737 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,11 +13,11 @@ license = "MIT OR Apache-2.0"
 name = "embedded-hal"
 readme = "README.md"
 repository = "https://github.com/rust-embedded/embedded-hal"
-version = "1.0.0-alpha.5" # remember to update html_root_url
+version = "1.0.0-alpha.6"
 
 [dependencies]
 nb = "1"
 
 [dev-dependencies.stm32f1]
-version = "0.13"
+version = "0.14"
 features = ["stm32f103", "rt"]
diff --git a/src/lib.rs b/src/lib.rs
index 05b6ad5a7..3e559ee13 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -402,7 +402,6 @@
 //! # fn main() {}
 //! ```
 
-#![doc(html_root_url = "https://docs.rs/embedded-hal/1.0.0-alpha.5")]
 #![deny(missing_docs)]
 #![no_std]