chore(versioning): bump version to 3.6.4 and fill the changelog (#481)

* chore(versioning): bump version to 3.6.4 and fill the changelog

* also bump parity-scale-codec-derive to 3.6.4

* also bump version in `[dependencies]`

CHANGELOG.md

@@ -5,6 +5,13 @@ All notable changes to this crate are documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this crate adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [3.6.4] - 2023-07-14
+
+### Added
+
+- Now `#[derive(Encode)]` implements the `size_hint()` method for structures and enumerations.
+  This improves the performance of the `encode()` method by pre-allocating memory.
+
 ## [3.6.3] - 2023-07-03
 
 ### Fixed

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "parity-scale-codec"
 description = "SCALE - Simple Concatenating Aggregated Little Endians"
-version = "3.6.3"
+version = "3.6.4"
 authors = ["Parity Technologies <admin@parity.io>"]
 license = "Apache-2.0"
 repository = "https://github.com/paritytech/parity-scale-codec"
@@ -12,7 +12,7 @@ rust-version = "1.60.0"
 [dependencies]
 arrayvec = { version = "0.7", default-features = false }
 serde = { version = "1.0.171", optional = true }
-parity-scale-codec-derive = { path = "derive", version = ">= 3.6.3", default-features = false, optional = true }
+parity-scale-codec-derive = { path = "derive", version = ">= 3.6.4", default-features = false, optional = true }
 bitvec = { version = "1", default-features = false, features = [ "alloc" ], optional = true }
 bytes = { version = "1", default-features = false, optional = true }
 byte-slice-cast = { version = "1.2.2", default-features = false }

derive/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "parity-scale-codec-derive"
 description = "Serialization and deserialization derive macro for Parity SCALE Codec"
-version = "3.6.3"
+version = "3.6.4"
 authors = ["Parity Technologies <admin@parity.io>"]
 license = "Apache-2.0"
 edition = "2021"