Prepare for release 0.9.0. (#234)

Breaking changes

* Move the `flatten_into` method for converting domain names into a
  straight, flat form into a new `FlattenInto` trait. This trait is only
  implemented for types that actually are or contain domain names. ([#216])
* Marked various methods and functions that return values without side
  effects as `#[must_use]`. ([#228] by [@WhyNotHugo])
* Changed the signature of `FoundSrvs::merge` to use a non-mut `other`.
  ([#232])

New

* Added support for the ZONEMD record type. ([#229] by [@xofyarg])
* Re-exported the _octseq_ crate as `dep::octseq`. ([#230])
* Added a blanket impl for mut refs to `Composer`. ([#231] by [@xofyarg])

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "domain"
-version = "0.9.0-dev"
+version = "0.9.0"
 rust-version = "1.65.0"
 edition = "2021"
 authors = ["NLnet Labs <dns-team@nlnetlabs.nl>"]
@@ -28,7 +28,7 @@ heapless       = { version = "0.7", optional = true }
 #openssl       = { version = "0.10", optional = true }
 ring           = { version = "0.17", optional = true }
 serde          = { version = "1.0.130", optional = true, features = ["derive"] }
-siphasher      = { version = "0.3.10", optional = true }
+siphasher      = { version = "1", optional = true }
 smallvec       = { version = "1", optional = true }
 tokio          = { version = "1.0", optional = true, features = ["io-util", "macros", "net", "time"] }
 

Changelog.md

@@ -1,6 +1,8 @@
 # Change Log
 
-## Unreleased next version
+## 0.9.0
+
+Released 2023-09-18.
 
 Breaking changes
 
@@ -18,10 +20,6 @@ New
 * Re-exported the _octseq_ crate as `dep::octseq`. ([#230])
 * Added a blanket impl for mut refs to `Composer`. ([#231] by [@xofyarg])
 
-Bug fixes
-
-Other changes
-
 [#216]: https://github.com/NLnetLabs/domain/pull/216
 [#229]: https://github.com/NLnetLabs/domain/pull/229
 [#230]: https://github.com/NLnetLabs/domain/pull/230