Update release notes to mention move to py2installer

Author: czerwingithub

CHANGELOG.md

@@ -10,9 +10,12 @@ Packaged by Yan Shnayder <[email protected]> on Jun 24, 2020 16:30 -0800
 Features:
 * New configuration feature `k8s_logs` allows configuring of Kubernetes logs similarly to the `logs` configuration but matches based on Kubernetes pod, namespace, and container name. Please see the [RELEASE_NOTES](https://github.com/scalyr/scalyr-agent-2/blob/master/RELEASE_NOTES.md#217-serenity---june-24-2020) for more details.
 
-Buf fixes:
+Bug fixes:
 * Fixed race condition that sometimes resulted in duplicated K8s logs being uploaded on agent restart or configuration update.
 
+Misc:
+* The Windows package is now built using `pyInstaller` instead of `py2exe`.  As part of the change, we are no longer supporting 32-bit Windows systems.  Nothing else should change due move to `py2Installer`.
+
 ## 2.1.6 "Rama" - June 4, 2020
 
 <!---

RELEASE_NOTES.md

@@ -2,6 +2,10 @@
 
 ## 2.1.7 "Serenity" - June 24, 2020
 
+* Windows 32-bit systems are no longer supported.
+
+  If you still need support, you should not upgrade beyond version 2.1.6.
+
 * Agent configuration files now support a top level json array called `k8s_logs` which lets you specify log
   configuration for Kubernetes logs.