update changelog for bugfix release 1.7.7

Author: knipknap

CHANGELOG.md

@@ -5,6 +5,14 @@ All notable changes to Rayforge will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## 1.7.7
+
+### Fixed
+
+- Fixed shallow copy of extra_axes in Command causing rotary 3D preview
+  distortion (#243)
+- Fixed mirrored arcs rendered as full circles in G-code and 3D preview
+
 ## 1.7.6
 
 ### Added

data/org.rayforge.rayforge.metainfo.xml

@@ -66,6 +66,17 @@
   </screenshots>
 
   <releases>
+    <release version="1.7.7" date="2026-05-16">
+      <description>
+        <p>Bug fix release</p>
+        <ul>
+          <li>Fixed shallow copy of extra_axes causing rotary 3D preview
+          distortion (#243)</li>
+          <li>Fixed mirrored arcs rendered as full circles in G-code and
+          3D preview</li>
+        </ul>
+      </description>
+    </release>
     <release version="1.7.6" date="2026-05-14">
       <description>
         <p>Canvas pan, camera enhancements, raster performance, and bug fixes</p>