Merge bitcoindevkit#141: Bump version to 0.21.0 and update CHANGELOG.md

4dd7e21 Bump version to 0.21.0 and update CHANGELOG.md (Steve Myers)

Pull request description:

  Bumped crate version to 0.21.0 and added below to changelog:

  ## 0.21.0

   - Add use-rustls-ring feature bitcoindevkit#135
   - refactor: make validate_merkle_proof more efficient bitcoindevkit#134
   - chore: set rust edition to 2021, fix clippy, add ci fmt and clippy checks bitcoindevkit#139

  ## 0.20.0

  - Upgrade rustls to 0.23 bitcoindevkit#132
  - chore(deps): upgrade rust-bitcoin to 0.32.0 bitcoindevkit#133
  - ci: add test with MSRV 1.63.0 bitcoindevkit#128

ACKs for top commit:
  oleonardolima:
    ACK 4dd7e21
  ValuedMammal:
    ACK 4dd7e21

Tree-SHA512: 3fcec2fb437733eac235bccb1b9c8f6b706e7a713c71de85016adc93f7db128ca6eadb5e9d1d44df27f1b49cce139b222aa9c21343afcf25befdf80a47442e51

CHANGELOG.md

@@ -9,6 +9,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.21.0]
+
+ - Add use-rustls-ring feature #135
+ - refactor: make validate_merkle_proof more efficient #134
+ - chore: set rust edition to 2021, fix clippy, add ci fmt and clippy checks #139
+
+## [0.20.0]
+
+- Upgrade rustls to 0.23 #132
+- chore(deps): upgrade rust-bitcoin to 0.32.0 #133
+- ci: add test with MSRV 1.63.0 #128
+
 ## [0.19.0]
 
  - Add Batch::raw and improve docs #94
@@ -23,4 +35,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 [0.18.0]: https://github.com/bitcoindevkit/rust-electrum-client/compare/0.17.0...0.18.0
 [0.19.0]: https://github.com/bitcoindevkit/rust-electrum-client/compare/0.18.0...v0.19.0
-[Unreleased]: https://github.com/bitcoindevkit/rust-electrum-client/compare/0.19.0...HEAD
+[0.20.0]: https://github.com/bitcoindevkit/rust-electrum-client/compare/0.19.0...v0.20.0
+[0.21.0]: https://github.com/bitcoindevkit/rust-electrum-client/compare/0.20.0...v0.21.0
+[Unreleased]: https://github.com/bitcoindevkit/rust-electrum-client/compare/0.21.0...HEAD

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "electrum-client"
-version = "0.20.0"
+version = "0.21.0"
 authors = ["Alekos Filini <alekos.filini@gmail.com>"]
 license = "MIT"
 homepage = "https://github.com/MagicalBitcoin/rust-electrum-client"