Bump to v0.7.4, update changelog.

CHANGELOG.md

@@ -8,6 +8,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Update `managed` from 0.7 to 0.8 ([442](https://github.com/smoltcp-rs/smoltcp/pull/442))
 
+## [0.7.4] - 2021-06-11
+
+- tcp: fix "subtract sequence numbers with underflow" on remote window shrink. (#490)
+- tcp: fix substract with overflow when receiving a SYNACK with unincremented ACK number. (#491)
+- tcp: use nonzero initial sequence number to workaround misbehaving servers. (#492)
+
 ## [0.7.3] - 2021-05-29
 
 - Fix "unused attribute" error in recent nightlies.
@@ -71,6 +77,7 @@ only processed when directed to the 255.255.255.255 address. ([377](https://gith
 - Simplify lifetime parameters of sockets, SocketSet, EthernetInterface ([410](https://github.com/smoltcp-rs/smoltcp/pull/410), [413](https://github.com/smoltcp-rs/smoltcp/pull/413))
 
 [Unreleased]: https://github.com/smoltcp-rs/smoltcp/compare/v0.7.0...HEAD
+[0.7.4]: https://github.com/smoltcp-rs/smoltcp/compare/v0.7.3...v0.7.4
 [0.7.3]: https://github.com/smoltcp-rs/smoltcp/compare/v0.7.2...v0.7.3
 [0.7.2]: https://github.com/smoltcp-rs/smoltcp/compare/v0.7.1...v0.7.2
 [0.7.1]: https://github.com/smoltcp-rs/smoltcp/compare/v0.7.0...v0.7.1

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "smoltcp"
-version = "0.7.3"
+version = "0.7.4"
 edition = "2018"
 authors = ["whitequark <whitequark@whitequark.org>"]
 description = "A TCP/IP stack designed for bare-metal, real-time systems without a heap."