[doc] Add hotfix releases to CHANGELOG

Author: ptaoussanis

CHANGELOG.md

@@ -2,6 +2,22 @@ This project uses [**Break Versioning**](https://www.taoensso.com/break-versioni
 
 ---
 
+# `v6.7.1` (2025-05-12)
+
+This is a **hotfix release** for \[#396] `ClassCastException` when using a `println-appender` with `{:stream :std-out}`.
+
+**Main dependency** is [on Clojars](https://clojars.org/com.taoensso/timbre/versions/6.7.1).
+
+---
+
+# `v6.6.2` (2025-05-12)
+
+This is a **hotfix release** for \[#396] `ClassCastException` when using a `println-appender` with `{:stream :std-out}`.
+
+**Main dependency** is [on Clojars](https://clojars.org/com.taoensso/timbre/versions/6.6.2).
+
+---
+
 # `v6.7.0` (2025-04-15)
 
 - **Main dependency**: [on Clojars](https://clojars.org/com.taoensso/timbre/versions/6.7.0)

README.md

@@ -21,7 +21,7 @@ There's **zero pressure** for existing users of Timbre to migrate, though there
 
 ## Latest release/s
 
-- `2025-04-15` `v6.7.0`: [release info](../../releases/tag/v6.7.0)
+- `2025-05-12` `v6.7.1`: [release info](../../releases/tag/v6.7.1)
 
 [![Main tests][Main tests SVG]][Main tests URL]
 [![Graal tests][Graal tests SVG]][Graal tests URL]