diff --git a/RELEASE-NOTES.md b/RELEASE-NOTES.md
index 972d3fb73..f152d310b 100644
--- a/RELEASE-NOTES.md
+++ b/RELEASE-NOTES.md
@@ -1,6 +1,10 @@
 ZeroTier Release Notes
 ======
 
+# 2021-02-15 -- Version 1.6.4
+
+ * The groundhog saw his shadow, which meant that the "connection coma" bug still wasn't gone. We think we found it this time.
+
 # 2021-02-02 -- Version 1.6.3
 
  * Likely fix for GitHub issue #1334, an issue that could cause ZeroTier to
diff --git a/debian/changelog b/debian/changelog
index 1256f8d5c..675480f69 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+zerotier-one (1.6.4) unstable; urgency=medium
+
+  * REALLY fix a problem causing nodes to go into a "coma" with some network configurations.
+
+ -- Adam Ierymenko <adam.ierymenko@zerotier.com>  Tue, 15 Feb 2021 01:00:00 -0700
+
 zerotier-one (1.6.3-1) unstable; urgency=medium
 
   * Fix a problem causing nodes to go into a "coma" with some network configurations.
diff --git a/ext/installfiles/mac/ZeroTier One.pkgproj b/ext/installfiles/mac/ZeroTier One.pkgproj
index 0243253d3..f50bd5fa6 100755
--- a/ext/installfiles/mac/ZeroTier One.pkgproj	
+++ b/ext/installfiles/mac/ZeroTier One.pkgproj	
@@ -689,7 +689,7 @@
 				<key>USE_HFS+_COMPRESSION</key>
 				<false/>
 				<key>VERSION</key>
-				<string>1.6.3</string>
+				<string>1.6.4</string>
 			</dict>
 			<key>TYPE</key>
 			<integer>0</integer>
diff --git a/version.h b/version.h
index 604e99a18..f9f8ed663 100644
--- a/version.h
+++ b/version.h
@@ -27,7 +27,7 @@
 /**
  * Revision
  */
-#define ZEROTIER_ONE_VERSION_REVISION 3
+#define ZEROTIER_ONE_VERSION_REVISION 4
 
 /**
  * Build version
diff --git a/windows/WinUI/AboutView.xaml b/windows/WinUI/AboutView.xaml
index 3fe1305c2..63ea720fa 100644
--- a/windows/WinUI/AboutView.xaml
+++ b/windows/WinUI/AboutView.xaml
@@ -19,7 +19,7 @@
                     <Run Text="ZeroTier One"/>
                 </Paragraph>
                 <Paragraph TextAlignment="Center">
-                    <Run FontSize="14" Text="Version 1.6.3"/>
+                    <Run FontSize="14" Text="Version 1.6.4"/>
                     <LineBreak/>
                     <Run FontSize="14" Text="(c) 2011-2021 ZeroTier, Inc."/>
                     <LineBreak/>
diff --git a/zerotier-one.spec b/zerotier-one.spec
index 71c245038..2721002ba 100644
--- a/zerotier-one.spec
+++ b/zerotier-one.spec
@@ -1,5 +1,5 @@
 Name:           zerotier-one
-Version:        1.6.3
+Version:        1.6.4
 Release:        1%{?dist}
 Summary:        ZeroTier network virtualization service
 
@@ -152,6 +152,9 @@ esac
 %endif
 
 %changelog
+* Mon Feb 15 2021 Adam Ierymenko <adam.ierymenko@zerotier.com> - 1.6.4
+- see https://github.com/zerotier/ZeroTierOne for release notes
+
 * Mon Nov 30 2020 Adam Ierymenko <adam.ierymenko@zerotier.com> - 1.6.2-0.1
 - see https://github.com/zerotier/ZeroTierOne for release notes