Update CHANGELOG.md

Author: lukebakken

CHANGELOG.md

@@ -1,5 +1,25 @@
 # Changelog
 
+## [v1.6.1-rc.2](https://github.com/rabbitmq/amqp091-go/tree/v1.6.1-rc.2) (2023-01-31)
+
+[Full Changelog](https://github.com/rabbitmq/amqp091-go/compare/v1.6.1-rc.1...v1.6.1-rc.2)
+
+**Merged pull requests:**
+
+- Do not overly protect writes [\#162](https://github.com/rabbitmq/amqp091-go/pull/162) ([lukebakken](https://github.com/lukebakken))
+
+## [v1.6.1-rc.1](https://github.com/rabbitmq/amqp091-go/tree/v1.6.1-rc.1) (2023-01-31)
+
+[Full Changelog](https://github.com/rabbitmq/amqp091-go/compare/v1.6.0...v1.6.1-rc.1)
+
+**Closed issues:**
+
+- Calling Channel\(\) on an empty connection panics [\#148](https://github.com/rabbitmq/amqp091-go/issues/148)
+
+**Merged pull requests:**
+
+- Ensure flush happens and correctly lock connection for a series of unflushed writes [\#161](https://github.com/rabbitmq/amqp091-go/pull/161) ([lukebakken](https://github.com/lukebakken))
+
 ## [v1.6.0](https://github.com/rabbitmq/amqp091-go/tree/v1.6.0) (2023-01-20)
 
 [Full Changelog](https://github.com/rabbitmq/amqp091-go/compare/v1.5.0...v1.6.0)