diff --git a/RELEASE-NOTES.md b/RELEASE-NOTES.md
index 9f2483ef8..4845c68af 100644
--- a/RELEASE-NOTES.md
+++ b/RELEASE-NOTES.md
@@ -1,13 +1,13 @@
 ZeroTier Release Notes
 ======
 
-# 2021-11-23 -- Version 1.8.4
+# 2021-11-30 -- Version 1.8.4
 
- * Happy 🦃 week to our USA users!
- * This release is now less of a 🦃 on 32-bit Windows and actually installs.
  * Fixed an ugly font problem on some older macOS versions.
  * Fixed a bug that could cause the desktop tray app control panel to stop opening after a while on Windows.
  * Fixed a possible double "release" in macOS tray app code that crashed on older macOS versions.
+ * Fixed installation on 32-bit Windows 10.
+ * Fixed a build flags issue that could cause ZeroTier to crash on older ARM32 CPUs.
 
 # 2021-11-15 -- Version 1.8.3
 
diff --git a/ext/installfiles/windows/ZeroTier One.aip b/ext/installfiles/windows/ZeroTier One.aip
index 5b7733f9f..c38d58f2f 100644
--- a/ext/installfiles/windows/ZeroTier One.aip	
+++ b/ext/installfiles/windows/ZeroTier One.aip	
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-<DOCUMENT Type="Advanced Installer" CreateVersion="10.9" version="18.8.1" Modules="enterprise" RootPath="." Language="en" Id="{DC564647-6BF0-4550-87F4-89C938D0159C}">
+<DOCUMENT Type="Advanced Installer" CreateVersion="10.9" version="18.9" Modules="enterprise" RootPath="." Language="en" Id="{DC564647-6BF0-4550-87F4-89C938D0159C}">
   <COMPONENT cid="caphyon.advinst.msicomp.MsiPropsComponent">
     <ROW Property="AI_BITMAP_DISPLAY_MODE" Value="0"/>
     <ROW Property="AI_CURRENT_YEAR" Value="2021" ValueLocId="-"/>
@@ -10,6 +10,7 @@
     <ROW Property="AI_PRODUCTNAME_ARP" Value="ZeroTier One"/>
     <ROW Property="AI_REQUIRED_DOTNET_DISPLAY" MultiBuildValue="DefaultBuild:4.5" ValueLocId="-"/>
     <ROW Property="AI_REQUIRED_DOTNET_VERSION" MultiBuildValue="DefaultBuild:4.5" ValueLocId="-"/>
+    <ROW Property="AI_ThemeStyle" Value="aero" MsiKey="AI_ThemeStyle"/>
     <ROW Property="AI_UNINSTALLER" Value="msiexec.exe"/>
     <ROW Property="ALLUSERS" Value="1"/>
     <ROW Property="ARPCOMMENTS" Value="This installer database contains the logic and data required to install [|ProductName]."/>
@@ -26,7 +27,7 @@
     <ROW Property="LIMITUI" MultiBuildValue="DefaultBuild:1"/>
     <ROW Property="MSIFASTINSTALL" MultiBuildValue="DefaultBuild:2"/>
     <ROW Property="Manufacturer" Value="ZeroTier, Inc."/>
-    <ROW Property="ProductCode" Value="1033:{3F647F12-3A58-40B2-8DE4-15E8D8D19950} " Type="16"/>
+    <ROW Property="ProductCode" Value="1033:{7ED47AAB-D7DF-4C0C-BB7D-D9867FB8D7FF} " Type="16"/>
     <ROW Property="ProductLanguage" Value="1033"/>
     <ROW Property="ProductName" Value="ZeroTier One"/>
     <ROW Property="ProductVersion" Value="1.8.4" Type="32"/>
@@ -69,7 +70,7 @@
     <ROW Component="AI_DisableModify" ComponentId="{46FFA8C5-A0CB-4E05-9AD3-911D543DE8CA}" Directory_="APPDIR" Attributes="4" KeyPath="NoModify" Options="1"/>
     <ROW Component="AI_ExePath" ComponentId="{8E02B36C-7A19-429B-A93E-77A9261AC918}" Directory_="APPDIR" Attributes="4" KeyPath="AI_ExePath"/>
     <ROW Component="APPDIR" ComponentId="{4DD7907D-D7FE-4CD6-B1A0-B5C1625F5133}" Directory_="APPDIR" Attributes="0"/>
-    <ROW Component="C4FE6FD5B7C4D07B3A313E754A9A6A8" ComponentId="{7A501107-9EEE-45A6-9609-F5E1A7372448}" Directory_="APPDIR" Attributes="4" KeyPath="C4FE6FD5B7C4D07B3A313E754A9A6A8" Options="2"/>
+    <ROW Component="C4FE6FD5B7C4D07B3A313E754A9A6A8" ComponentId="{7A501107-9EEE-45A6-9609-F5E1A7372448}" Directory_="APPDIR" Attributes="260" KeyPath="C4FE6FD5B7C4D07B3A313E754A9A6A8" Options="2"/>
     <ROW Component="ProductInformation" ComponentId="{DB078D04-EA8E-4A7C-9001-89BAD932F9D9}" Directory_="APPDIR" Attributes="4" KeyPath="Version"/>
     <ROW Component="RequiredApplication" ComponentId="{92E37C98-F8B3-4A85-AE77-3D8D9A223776}" Directory_="APPDIR" Attributes="4" Condition="VersionNT &gt;= 1000" KeyPath="RequiredApplication" Options="2"/>
     <ROW Component="i686" ComponentId="{6EC46014-3BFD-4017-ACBC-C4417D1D6361}" Directory_="i686_1_Dir" Attributes="0"/>
@@ -87,7 +88,7 @@
     <ROW Feature="C4FE6FD5B7C4D07B3A313E754A9A6A8" Title="Visual C++ Redistributable for Visual Studio 2015-2019 x64" Description="Visual C++ Redistributable for Visual Studio 2015-2019 x64" Display="5" Level="1" Attributes="0"/>
     <ROW Feature="MainFeature" Title="MainFeature" Description="Description" Display="1" Level="1" Directory_="APPDIR" Attributes="0"/>
     <ROW Feature="RequiredApplication" Title="Microsoft Edge Webview2 Runtime" Description="Microsoft Edge Webview2 Runtime" Display="7" Level="1" Attributes="0"/>
-    <ROW Feature="ZeroTierOne" Title="MainFeature" Description="ZeroTier One" Display="1" Level="1" Directory_="APPDIR" Attributes="0"/>
+    <ROW Feature="ZeroTierOne" Title="MainFeature" Description="ZeroTier One" Display="0" Level="1" Directory_="APPDIR" Attributes="0"/>
     <ATTRIBUTE name="CurrentFeature" value="ZeroTierOne"/>
   </COMPONENT>
   <COMPONENT cid="caphyon.advinst.msicomp.MsiFilesComponent">
@@ -134,10 +135,10 @@
     <ROW TimeStampUrl="http://timestamp.digicert.com" SignerDescription="ZeroTier One" DescriptionUrl="https://www.zerotier.com/" SignOptions="7" SignTool="5" UseSha256="1" KVTenantId="5300bf3b-0eff-4a5f-a63f-821e22ed1730" KVAppId="5f94d77e-b795-41fd-afe7-ec913b03c1d3" KVName="ZeroTier-CS" KVCertName="ZT-EV-CS" KVCertVersion="442c2d6f77874ff99eed4b36f5cb401c"/>
   </COMPONENT>
   <COMPONENT cid="caphyon.advinst.msicomp.FirewallExceptionComponent">
-    <ROW FirewallException="ZeroTierOneControl" Direction="1" DisplayName="ZeroTier One TCP/9993" GroupName="ZeroTierOne" Enabled="1" Scope="*" Condition="1" Profiles="7" Port="9993" Protocol="TCP"/>
-    <ROW FirewallException="ZeroTierOneUDP9993" Direction="1" DisplayName="ZeroTier One UDP/9993" GroupName="ZeroTierOne" Enabled="1" Scope="*" Condition="1" Profiles="7" Port="9993" Protocol="UDP"/>
-    <ROW FirewallException="ZeroTierOnex64Binary" Direction="1" DisplayName="ZeroTier One x64 Binary" Enabled="1" Scope="*" Condition="((?zerotierone_x64.exe=2) AND ($zerotierone_x64.exe=3))" Profiles="0" AppPath="[#zerotierone_x64.exe]" Port="*" Protocol="ANY"/>
-    <ROW FirewallException="ZeroTierOnex86Binary" Direction="1" DisplayName="ZeroTier One x86 Binary" Enabled="1" Scope="*" Condition="((?zerotierone_x86.exe=2) AND ($zerotierone_x86.exe=3))" Profiles="0" AppPath="[#zerotierone_x86.exe]" Port="*" Protocol="ANY"/>
+    <ROW FirewallException="ZeroTierOneUDP9993" Direction="1" DisplayName="ZeroTier UDP/9993 In" GroupName="ZeroTierOne" Enabled="1" Scope="*" Condition="1" Profiles="7" Port="9993" Protocol="UDP"/>
+    <ROW FirewallException="ZeroTierOnex64Binary" Direction="1" DisplayName="ZeroTier x64 Binary In" GroupName="ZeroTierOne" Enabled="1" Scope="*" Condition="((?zerotierone_x64.exe=2) AND ($zerotierone_x64.exe=3))" Profiles="7" AppPath="[#zerotierone_x64.exe]" Port="*" Protocol="ANY"/>
+    <ROW FirewallException="ZeroTierOnex86Binary" Direction="1" DisplayName="ZeroTier x86 Binary In" GroupName="ZeroTierOne" Enabled="1" Scope="*" Condition="((?zerotierone_x86.exe=2) AND ($zerotierone_x86.exe=3))" Profiles="7" AppPath="[#zerotierone_x86.exe]" Port="*" Protocol="ANY"/>
+    <ROW FirewallException="ZeroTierUDP9993Out" Direction="2" DisplayName="ZeroTier UDP/9993 Out" GroupName="ZeroTierOne" Enabled="1" Scope="*" Condition="1" Profiles="7" Port="9993" Protocol="UDP"/>
   </COMPONENT>
   <COMPONENT cid="caphyon.advinst.msicomp.FragmentComponent">
     <ROW Fragment="CommonUI.aip" Path="&lt;AI_FRAGS&gt;CommonUI.aip"/>
@@ -195,6 +196,7 @@
     <ROW Name="file_deleter.ps1" SourcePath="&lt;AI_SCRIPTS&gt;file_deleter.ps1"/>
     <ROW Name="lzmaextractor.dll" SourcePath="&lt;AI_CUSTACTS&gt;lzmaextractor.dll"/>
     <ROW Name="msichainer.exe" SourcePath="&lt;AI_CUSTACTS&gt;msichainer.exe"/>
+    <ROW Name="viewer.exe" SourcePath="&lt;AI_CUSTACTS&gt;viewer.exe"/>
     <ROW Name="xmlCfg.dll" SourcePath="&lt;AI_CUSTACTS&gt;xmlCfg.dll"/>
   </COMPONENT>
   <COMPONENT cid="caphyon.advinst.msicomp.MsiControlComponent">
@@ -252,6 +254,7 @@
     <ROW Dialog_="WelcomeDlg" Control_="WelcomeDlgDialogInitializer" Event="[Text_Next]" Argument="[Text_Install]" Condition="AI_INSTALL" Ordering="3" Options="2"/>
     <ROW Dialog_="WelcomeDlg" Control_="Back" Event="[ButtonText_Next]" Argument="[AI_ButtonText_Next_Orig]" Condition="AI_INSTALL" Ordering="0" Options="2"/>
     <ROW Dialog_="WelcomeDlg" Control_="Back" Event="[Text_Next]" Argument="[AI_Text_Next_Orig]" Condition="AI_INSTALL" Ordering="1" Options="2"/>
+    <ROW Dialog_="ExitDialog" Control_="Finish" Event="DoAction" Argument="AI_ChainerScheduleReboot" Condition="Not AIEXTERNALUI" Ordering="302"/>
   </COMPONENT>
   <COMPONENT cid="caphyon.advinst.msicomp.MsiCreateFolderComponent">
     <ROW Directory_="networks.d_Dir" Component_="networks.d" ManualDelete="false"/>
@@ -262,6 +265,7 @@
   <COMPONENT cid="caphyon.advinst.msicomp.MsiCustActComponent">
     <ROW Action="AI_AppSearchEx" Type="1" Source="Prereq.dll" Target="DoAppSearchEx"/>
     <ROW Action="AI_BACKUP_AI_SETUPEXEPATH" Type="51" Source="AI_SETUPEXEPATH_ORIGINAL" Target="[AI_SETUPEXEPATH]"/>
+    <ROW Action="AI_ChainerScheduleReboot" Type="1" Source="chainersupport.dll" Target="ScheduleReboot" WithoutSeq="true"/>
     <ROW Action="AI_CleanPrereq" Type="65" Source="Prereq.dll" Target="CleanPrereq" WithoutSeq="true"/>
     <ROW Action="AI_CommitChainers" Type="11841" Source="chainersupport.dll" Target="CommitChainedPackages" WithoutSeq="true"/>
     <ROW Action="AI_ConfigureChainer" Type="1" Source="Prereq.dll" Target="ConfigurePrereqLauncher"/>
@@ -317,6 +321,7 @@
     <ROW Action="AI_XmlRemove" Type="11265" Source="xmlCfg.dll" Target="OnXmlRemove" WithoutSeq="true"/>
     <ROW Action="AI_XmlRollback" Type="11521" Source="xmlCfg.dll" Target="OnXmlRollback" WithoutSeq="true"/>
     <ROW Action="AI_XmlUninstall" Type="1" Source="xmlCfg.dll" Target="OnXmlUninstall" AdditionalSeq="AI_DATA_SETTER_1"/>
+    <ROW Action="LaunchUI" Type="194" Source="viewer.exe" Target="/DontWait &quot;[APPDIR]zerotier_desktop_ui.exe&quot;" Options="1"/>
     <ROW Action="SET_APPDIR" Type="307" Source="APPDIR" Target="[ProgramFilesFolder][Manufacturer]\[ProductName]" MultiBuildTarget="DefaultBuild:[ProgramFilesFolder]ZeroTier\One"/>
     <ROW Action="SET_SHORTCUTDIR" Type="307" Source="SHORTCUTDIR" Target="[ProgramMenuFolder][ProductName]"/>
     <ROW Action="SET_TARGETDIR_TO_APPDIR" Type="51" Source="TARGETDIR" Target="[APPDIR]"/>
@@ -324,7 +329,6 @@
     <ROW Action="TapDeviceRemove64" Type="3154" Source="zerotierone_x64.exe" Target="-D"/>
     <ROW Action="TerminateUINew" Type="65" Source="aicustact.dll" Target="StopProcess" Options="1" AdditionalSeq="AI_DATA_SETTER_5"/>
     <ROW Action="TerminateUIOld" Type="65" Source="aicustact.dll" Target="StopProcess" Options="1" AdditionalSeq="AI_DATA_SETTER_6"/>
-    <ROW Action="zerotier_desktop_ui.exe" Type="210" Source="zerotier_desktop_ui.exe"/>
   </COMPONENT>
   <COMPONENT cid="caphyon.advinst.msicomp.MsiDialogComponent">
     <ROW Dialog="Windows7Warning" HCentering="50" VCentering="50" Width="370" Height="270" Attributes="3" Title="[ProductName] [Setup]" Control_Default="Next" Control_Cancel="Cancel"/>
@@ -333,7 +337,7 @@
     <ROW MsiEmbeddedChainer="msichainer.exe" Condition="VersionMsi &gt;= &quot;4.05&quot;" CommandLine="[AI_CHAINER_CMD_LINE]" Source="msichainer.exe" Type="2"/>
   </COMPONENT>
   <COMPONENT cid="caphyon.advinst.msicomp.MsiEnvComponent">
-    <ROW Environment="Path" Name="=-*Path" Value="[~];[APPDIR]" Component_="APPDIR"/>
+    <ROW Environment="Path" Name="=-*Path" Value="[~];[APPDIR]" Component_="regid.201001.com.zerotier"/>
   </COMPONENT>
   <COMPONENT cid="caphyon.advinst.msicomp.MsiFeatCompsComponent">
     <ROW Feature_="ZeroTierOne" Component_="ProductInformation"/>
@@ -399,7 +403,7 @@
     <ROW Action="AI_ConfigureChainer" Condition="((UILevel = 2) OR (UILevel = 3)) AND (NOT UPGRADINGPRODUCTCODE)" Sequence="6600"/>
     <ROW Action="AI_LaunchChainer" Condition="AI_PREREQ_CHAINER AND (NOT UPGRADINGPRODUCTCODE)" Sequence="6601"/>
     <ROW Action="AI_VerifyPrereq" Sequence="1101"/>
-    <ROW Action="zerotier_desktop_ui.exe" Condition="( NOT Installed )" Sequence="6603"/>
+    <ROW Action="LaunchUI" Condition="( NOT Installed ) AND ( ZTHEADLESS = &quot;No&quot; )" Sequence="6603"/>
   </COMPONENT>
   <COMPONENT cid="caphyon.advinst.msicomp.MsiInstallUISequenceComponent">
     <ROW Action="AI_RESTORE_LOCATION" Condition="APPDIR=&quot;&quot;" Sequence="749"/>
diff --git a/make-linux.mk b/make-linux.mk
index bedf6b538..d23e81d16 100644
--- a/make-linux.mk
+++ b/make-linux.mk
@@ -286,8 +286,8 @@ ifeq ($(ZT_ARCHITECTURE),3)
 		override CXXFLAGS+=-march=armv5t -mfloat-abi=soft -msoft-float -mno-unaligned-access -marm
 		ZT_USE_ARM32_NEON_ASM_CRYPTO=0
 	else
-		override CFLAGS+=-mfloat-abi=hard -mfpu=vfp -mcpu=arm1176jzf-s -marm -mno-unaligned-access
-		override CXXFLAGS+=-mfloat-abi=hard -mfpu=vfp -mcpu=arm1176jzf-s -fexceptions -marm -mno-unaligned-access
+		override CFLAGS+=-mfloat-abi=hard -mfpu=vfp -march=armv6zk+fp -mcpu=arm1176jzf-s -mstructure-size-boundary=8 -marm -mno-unaligned-access
+		override CXXFLAGS+=-mfloat-abi=hard -mfpu=vfp -march=armv6zk+fp -mcpu=arm1176jzf-s -fexceptions -mstructure-size-boundary=8 -marm -mno-unaligned-access
 		ZT_USE_ARM32_NEON_ASM_CRYPTO=0
 	endif
 endif
@@ -348,7 +348,7 @@ distclean:	clean
 realclean:	distclean
 
 official:	FORCE
-	make -j4 ZT_OFFICIAL=1 all
+	make -j`nproc` ZT_OFFICIAL=1 all
 
 docker:	FORCE
 	docker build --no-cache -f ext/installfiles/linux/zerotier-containerized/Dockerfile -t zerotier-containerized .
diff --git a/snap/snapcraft.yaml b/snap/snapcraft.yaml
index 9db6275a8..46fb373ff 100644
--- a/snap/snapcraft.yaml
+++ b/snap/snapcraft.yaml
@@ -13,7 +13,7 @@ description: |
   arising from the inflexible nature of physical networks obsolete. Everything is encrypted
   end-to-end and traffic takes the most direct (peer to peer) path available.
 
-  Install
+  Install (be sure to use sudo)
 
     sudo snap install zerotier