Prepare v6.4.2 (#695)

messages.json

@@ -23,5 +23,6 @@
   "6.2.8": "messages/6.2.8.rst",
   "6.3.0": "messages/6.3.0.rst",
   "6.4.0": "messages/6.4.0.rst",
-  "6.4.1": "messages/6.4.1.rst"
+  "6.4.1": "messages/6.4.1.rst",
+  "6.4.2": "messages/6.4.2.rst"
 }

messages/6.4.2.rst

@@ -0,0 +1,26 @@
+Version 6.4.2
+=============
+
+Improvements and bug fixes:
+---------------------------
+- Add proper failure detection of CMake run.
+
+
+💜 this plugin? Consider supporting its development! 💰💸💶
+------------------------------------------------------------
+‼️NEW‼️ Head to GitHub Sponsors and support my work if you enjoy the plugin!
+https://github.com/sponsors/niosus
+
+Alternatively, become a backer on Open Collective!
+https://opencollective.com/EasyClangComplete#backers
+
+I you use this plugin in a company, push to become a sponsor!
+https://opencollective.com/EasyClangComplete#sponsor
+
+This plugin took a significant amount of effort. It is available and will always
+be available for free, both as freedom and as beer.
+
+If you appreciate it - support it. How much would you say it is worth to you?
+
+For more info head here:
+https://github.com/niosus/EasyClangComplete#support-it