VERSION 1.6.3

This reverts commit 89efd09e20.

.dockerignore

@@ -0,0 +1,2 @@
+.git/
+workspace/

.gitattributes

@@ -0,0 +1,4 @@
+ext/bin/tap-windows-ndis6/x64/zttap300.inf eol=crlf
+ext/bin/tap-windows-ndis6/x64.old/zttap300.inf eol=crlf
+ext/bin/tap-windows-ndis6/x86/zttap300.inf eol=crlf
+windows/TapDriver6/zttap300.inf eol=crlf

.github/ISSUE_TEMPLATE/bugs-and-issues.md

@@ -0,0 +1,48 @@
+---
+name: Bugs and Issues
+about: Create a report to help us improve
+title: ''
+labels: NEEDS TRIAGE
+assignees: ''
+
+---
+
+# Before filing a Bug Report
+
+_Using these will ensure you get quicker support, and make this space available for code-related issues. Thank you!_
+
+- [Knowledge Base](https://zerotier.atlassian.net/wiki/spaces/SD/overview) => Guides and documentation on how to use ZeroTier.
+- [Discuss Forum](https://discuss.zerotier.com/) => Our discussion forum for users and support to mutually resolve issues & suggest ideas.
+- [Reddit](https://www.reddit.com/r/zerotier/) => Our subreddit, which we monitor regularly and is fairly active.
+
+# If you still want to file a Bug Report
+
+## Required
+
+- What you expect to be happening.
+- What is actually happening?
+- Any steps to reproduce the error.
+- Any screenshots that would help us out.
+
+## Additional information 
+
+**Desktop (please complete the following information):**
+ - OS: [e.g. Mac, Linux, Windows, BSD]
+ - OS/Distribution Version
+ - ZeroTier Version [e.g. 1.4.6]
+  
+**Smartphone (please complete the following information):**
+ - Device: [e.g. iPhone6]
+ - OS: [e.g. iOS8.1]
+ - ZeroTier Version [e.g. 1.4.6]
+
+ **Embedded & NAS (please complete the following information):**
+ - Device: [e.g. Synology, Pi4]
+ - OS/Distribution (if applicable)
+ - ZeroTier Version [e.g. 1.4.6]
+
+**Additional context**
+- ZeroTier Network Configuration: IPv4 & IPv6 networks defined on your ZeroTier Central
+- Router Config: are you permitting port 9993, uPnP, and NAT-PMP?
+- Firewall Config: are you permitting port 9993 on your OS; setting it to "Private" on Windows?
+- Are you using this at home, in an office, college, etc?

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,13 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: "[Feature Request] "
+labels: suggestion
+assignees: ''
+
+---
+
+If there is something you'd like to have added to ZeroTier, to go to https://discuss.zerotier.com/c/feature-requests/ instead. Issues there can be voted on and discussed in-depth.
+
+
+Thank you!

.github/ISSUE_TEMPLATE/game-connection-issue.md

@@ -0,0 +1,15 @@
+---
+name: Game Connection Issue
+about: Game issues are better served by forum posts
+title: Please go to our Discuss or Reddit for game-related issues. Thanks!
+labels: wontfix
+assignees: ''
+
+---
+
+Are you having trouble connecting to a game on your virtual network after installing ZeroTier?
+
+- [ ] Yes
+- [ ] No
+
+If you answered yes, then it is very likely that your question would be better answered on our [Community Forums](https://discuss.zerotier.com) or [Reddit](https://www.reddit.com/r/zerotier/) community; we monitor both regularly. We also have extensive documentation on our [Knowledge Base](https://zerotier.atlassian.net/wiki/spaces/SD/overview). Thank you!

.gitignore

@@ -4,6 +4,7 @@
 /zerotier-cli
 /zerotier-selftest
 /zerotier
+/nltest
 
 # OS-created garbage files from various platforms
 .DS_Store
@@ -32,7 +33,6 @@ Thumbs.db
 /ext/installfiles/windows/Prerequisites
 /ext/installfiles/windows/*-cache
 /ZeroTier One.msi
-/windows/.vs
 *.vcxproj.backup
 /windows/TapDriver6/Win7Debug
 /windows/TapDriver6/win7Release
@@ -41,6 +41,7 @@ Thumbs.db
 enc_temp_folder
 /windows/copyutil/bin
 /windows/copyutil/obj
+.vs/
 
 # *nix/Mac build droppings
 /build-*
@@ -50,6 +51,7 @@ enc_temp_folder
 /world/mkworld
 /world/*.c25519
 zt1-src.tar.gz
+/MacEthernetTapAgent
 
 # Miscellaneous temporaries, build files, etc.
 *.log
@@ -116,3 +118,7 @@ ext/librethinkdbxx/build
 .vscode
 __pycache__
 *~
+attic/world/*.c25519
+attic/world/mkworld
+workspace/
+workspace2/

AUTHORS.md

@@ -1,7 +1,10 @@
+# Authors and Third Party Code Licensing Information
+
 ## Primary Authors
 
  * ZeroTier Core and ZeroTier One virtual networking service<br>
    Adam Ierymenko / adam.ierymenko@zerotier.com
+   Joseph Henry / joseph.henry@zerotier.com (QoS and multipath)
 
  * Java JNI Interface to enable Android application development, and Android app itself (code for that is elsewhere)<br>
    Grant Limberg / glimberg@gmail.com
@@ -25,7 +28,7 @@
 
 ## Third-Party Code
 
-ZeroTier includes the following third party code, either in ext/ or incorporated into the ZeroTier core.
+ZeroTier includes the following third party code, either in ext/ or incorporated into the ZeroTier core. This third party code remains licensed under its original license and is not subject to ZeroTier's BSL license.
 
  * LZ4 compression algorithm by Yann Collet
 
@@ -45,13 +48,6 @@ ZeroTier includes the following third party code, either in ext/ or incorporated
    * Home page: https://github.com/nlohmann/json
    * License grant: MIT
 
- * TunTapOSX by Mattias Nissler
-
-   * Files: ext/tap-mac/tuntap/*
-   * Home page: http://tuntaposx.sourceforge.net/
-   * License grant: BSD attribution no-endorsement
-   * ZeroTier Modifications: change interface name to zt#, increase max MTU, increase max devices
-
  * tap-windows6 by the OpenVPN project
 
    * Files: windows/TapDriver6/*
@@ -71,3 +67,9 @@ ZeroTier includes the following third party code, either in ext/ or incorporated
    * Files: ext/libnatpmp/* ext/miniupnpc/*
    * Home page: http://miniupnp.free.fr/
    * License grant: BSD attribution no-endorsement
+
+ * cpp-httplib by yhirose
+
+   * Files: ext/cpp-httplib/*
+   * Home page: https://github.com/yhirose/cpp-httplib
+   * License grant: MIT

COPYING

@@ -1,13 +1,8 @@
 ZeroTier One, an endpoint server for the ZeroTier virtual network layer.
-Copyright © 2011–2018 ZeroTier, Inc.
+Copyright © 2011–2019 ZeroTier, Inc.
 
-ZeroTier One is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 3 of the License, or (at
-your option) any later version.
-
-See the file ‘LICENSE.GPL-3’ for the text of the GNU GPL version 3.
-If that file is not present, see <http://www.gnu.org/licenses/>.
+ZeroTier is released under the terms of the BSL version 1.1. See the
+file LICENSE.txt for details.
 
 ..
     Local variables:

Jenkinsfile

@@ -1,84 +1,365 @@
-#!/usr/bin/env groovy
-
-node('master') {
-    checkout scm
+pipeline {
+    options {
+        disableConcurrentBuilds()
+        preserveStashes(buildCount: 10)
+        timestamps()
+    }
+    parameters {
+        booleanParam(name: "BUILD_ALL", defaultValue: false, description: "Build all supported platform/architecture combos.  Defaults to x86/x64 only")
+    }
     
-    def changelog = getChangeLog currentBuild
-
-    mattermostSend "Building ${env.JOB_NAME} #${env.BUILD_NUMBER} \n Change Log: \n ${changelog}"
-}
-
-parallel 'centos7': {
-    node('centos7') {
-        try {
-            checkout scm
-
-	        stage('Build Centos 7') {
-                sh 'make -f make-linux.mk'
+    agent none
+    
+    stages {
+        stage ("Build") {
+            steps {
+                script {
+                    def tasks = [:]
+                    tasks << buildStaticBinaries()
+                    tasks << buildDebianNative()
+                    tasks << buildCentosNative()
+                    
+                    parallel tasks
+                }
             }
         }
-        catch (err) {
-            currentBuild.result = "FAILURE"
-            mattermostSend color: '#ff0000', message: "${env.JOB_NAME} broken on Centos 7 (<${env.BUILD_URL}|Open>)"
-
-            throw err
-        }
-    }
-}, 'android-ndk': {
-    node('android-ndk') {
-        try {
-            checkout scm
-	
-            stage('Build Android NDK') { 
-                sh "/android/android-ndk-r15b/ndk-build -C $WORKSPACE/java ZT1=${WORKSPACE}"
+        stage ("Package Static") {
+            steps {
+                script {
+                    parallel packageStatic()
+                }
             }
         }
-        catch (err) {
-            currentBuild.result = "FAILURE"
-            mattermostSend color: '#ff0000', message: "${env.JOB_NAME} broken on Android NDK (<${env.BUILD_URL}|Open>)"
-
-            throw err
-        }
-    }
-}, 'macOS': {
-    node('macOS') {
-        try {
-            checkout scm
-
-            stage('Build macOS') {
-                sh 'make -f make-mac.mk'
-            }
-
-            stage('Build macOS UI') {
-                sh 'cd macui && xcodebuild -target "ZeroTier One" -configuration Debug'
-            }
-        }
-        catch (err) {
-            currentBuild.result = "FAILURE"
-            mattermostSend color: '#ff0000', message: "${env.JOB_NAME} broken on macOS (<${env.BUILD_URL}|Open>)"
-
-            throw err
-        }
-    }
-}, 'windows': {
-    node('windows') {
-        try {
-            checkout scm
-            
-            stage('Build Windows') {
-                bat '''CALL "C:\\Program Files (x86)\\Microsoft Visual Studio 14.0\\VC\\vcvarsall.bat" amd64
-git clean -dfx
-msbuild windows\\ZeroTierOne.sln
-'''
-            }
-        }
-        catch (err) {
-            currentBuild.result = "FAILURE"
-            mattermostSend color: '#ff0000', message: "${env.JOB_NAME} broken on Windows (<${env.BUILD_URL}|Open>)"
-
-            throw err
-        }
     }
 }
 
-mattermostSend color: "#00ff00", message: "${env.JOB_NAME} #${env.BUILD_NUMBER} Complete (<${env.BUILD_URL}|Show More...>)"
+def buildStaticBinaries() {
+    def tasks = [:]
+    def dist = ["alpine"]
+    def archs = []
+    if (params.BUILD_ALL == true) {
+        archs = ["arm64", "amd64", "i386", "armhf", "armel", "ppc64le", "s390x"]
+    } else {
+        archs = ["amd64", "i386"]
+    }
+
+    tasks << getTasks(dist, archs, { distro, platform -> 
+        def myNode = {
+            node ('linux-build') {
+                dir ("build") {
+                    checkout scm
+                }
+                sh "echo ${distro}-${platform}"
+                def runtime = docker.image("ztbuild/${distro}-${platform}:latest")
+                runtime.inside {
+                    dir("build") {
+                        sh 'make -j8 ZT_STATIC=1 all'
+                        sh "file ./zerotier-one"
+                        sh "mv zerotier-one zerotier-one-static-${platform}"
+                        stash includes: 'zerotier-one-static-*', name: "static-${platform}"
+                    }
+                    cleanWs deleteDirs: true, disableDeferredWipeout: true, notFailBuild: true
+                }
+            }
+        }
+        return myNode
+    })
+    
+    return tasks
+}
+
+def getTasks(axisDistro, axisPlatform, task) {
+    def tasks = [:]
+    for(int i=0; i< axisDistro.size(); i++) {
+        def axisDistroValue = axisDistro[i]
+        for(int j=0; j< axisPlatform.size(); j++) {
+            def axisPlatformValue = axisPlatform[j]
+            tasks["${axisDistroValue}/${axisPlatformValue}"] = task(axisDistroValue, axisPlatformValue)
+        }
+    }
+    return tasks
+}
+
+def packageStatic() {
+    def tasks = [:]
+    
+    def centos6 = ["centos6"]
+    def centos6Arch = ["i386", "amd64"]
+    tasks << getTasks(centos6, centos6Arch, { distro, arch -> 
+        def myNode = {
+            node ('linux-build') {
+                dir ("build") {
+                    checkout scm
+                }
+                def runtime = docker.image("ztbuild/${distro}-${arch}:latest")
+                runtime.inside {
+                    dir("build") {
+                        unstash "static-${arch}"
+                        sh "mv zerotier-one-static-${arch} zerotier-one && chmod +x zerotier-one" 
+                        sh "make redhat"
+                        sh "mkdir -p ${distro}"
+                        sh "cp -av `find ~/rpmbuild/ -type f -name \"*.rpm\"` ${distro}/"
+                        archiveArtifacts artifacts: "${distro}/*.rpm", onlyIfSuccessful: true
+                    }
+                }
+                cleanWs deleteDirs: true, disableDeferredWipeout: true, notFailBuild: true
+            }
+        }
+        return myNode
+    })
+    
+    def centos7 = ["centos7"]
+    def centos7Arch = ["i386"]
+    tasks << getTasks(centos7, centos7Arch, { distro, arch -> 
+        def myNode = {
+            node ('linux-build') {
+                dir ("build") {
+                    checkout scm
+                }
+                def runtime = docker.image("ztbuild/${distro}-${arch}:latest")
+                runtime.inside {
+                    dir("build") {
+                        unstash "static-${arch}"
+                        sh "mv zerotier-one-static-${arch} zerotier-one && chmod +x zerotier-one" 
+                        sh "make redhat"
+                        sh "mkdir -p ${distro}"
+                        sh "cp -av `find ~/rpmbuild/ -type f -name \"*.rpm\"` ${distro}/"
+                        archiveArtifacts artifacts: "${distro}/*.rpm", onlyIfSuccessful: true
+                    }
+                }
+                cleanWs deleteDirs: true, disableDeferredWipeout: true, notFailBuild: true
+            }
+        }
+        return myNode
+    })
+    
+    if (params.BUILD_ALL == true) {
+        def clefos7 = ["clefos"]
+        def clefos7Arch = ["s390x"]
+        tasks << getTasks(clefos7, clefos7Arch, { distro, arch -> 
+            def myNode = {
+                node ('linux-build') {
+                    dir ("build") {
+                        checkout scm
+                    }
+                    def runtime = docker.image("ztbuild/${distro}-${arch}:latest")
+                    runtime.inside {
+                        dir("build/") {
+                            unstash "static-${arch}"
+                            sh "mv zerotier-one-static-${arch} zerotier-one && chmod +x zerotier-one" 
+                            sh "make redhat"
+                            sh "mkdir -p ${distro}"
+                            sh "cp -av `find ~/rpmbuild/ -type f -name \"*.rpm\"` ${distro}/"
+                            archiveArtifacts artifacts: "${distro}/*.rpm", onlyIfSuccessful: true
+                        }
+                    }
+                    cleanWs deleteDirs: true, disableDeferredWipeout: true, notFailBuild: true
+                }
+            }
+            return myNode
+        })
+    }
+
+    def debianJessie = ["debian-jessie"]
+    def debianJessieArchs = []
+    if (params.BUILD_ALL == true) {
+        debianJessieArch = ["armhf", "armel", "amd64", "i386"]
+    } else {
+        debianJessieArch = ["amd64", "i386"]
+    }
+    tasks << getTasks(debianJessie, debianJessieArch, { distro, arch -> 
+        def myNode = {
+            node ('linux-build') {
+                dir ("build") {
+                    checkout scm
+                }
+                def runtime = docker.image("ztbuild/${distro}-${arch}:latest")
+                runtime.inside {
+                    sh "ls -la ."
+                    dir('build/') {
+                        sh "ls -la ."
+                        unstash "static-${arch}"
+                        sh "pwd"
+                        sh "mv zerotier-one-static-${arch} zerotier-one && chmod +x zerotier-one && file ./zerotier-one" 
+                        sh "mv -f debian/rules.static debian/rules"
+                        sh "make debian"
+                    }
+                    sh "mkdir -p ${distro}"
+                    sh "mv *.deb ${distro}"
+                    archiveArtifacts artifacts: "${distro}/*.deb", onlyIfSuccessful: true
+                }
+                cleanWs deleteDirs: true, disableDeferredWipeout: true, notFailBuild: true
+            }
+        }
+        return myNode
+    })
+    
+    def ubuntuTrusty = ["ubuntu-trusty"]
+    def ubuntuTrustyArch = []
+    if (params.BUILD_ALL == true) {
+        ubuntuTrustyArch = ["i386", "amd64", "armhf", "arm64", "ppc64le"]
+    } else {
+        ubuntuTrustyArch = ["i386", "amd64"]
+    }
+    tasks << getTasks(ubuntuTrusty, ubuntuTrustyArch, { distro, arch -> 
+        def myNode = {
+            node ('linux-build') {
+                dir ("build") {
+                    checkout scm
+                }
+                def runtime = docker.image("ztbuild/${distro}-${arch}:latest")
+                runtime.inside {
+                    sh "ls -la ."
+                    dir('build/') {
+                        sh "ls -la ."
+                        unstash "static-${arch}"
+                        sh "pwd"
+                        sh "mv zerotier-one-static-${arch} zerotier-one && chmod +x zerotier-one && file ./zerotier-one" 
+                        sh "mv -f debian/rules.static debian/rules"
+                        sh "make debian"
+                    }
+                    sh "mkdir -p ${distro}"
+                    sh "mv *.deb ${distro}"
+                    archiveArtifacts artifacts: "${distro}/*.deb", onlyIfSuccessful: true
+                }
+                cleanWs deleteDirs: true, disableDeferredWipeout: true, notFailBuild: true
+            }
+        }
+        return myNode
+    })
+    
+    def debianWheezy = ["debian-wheezy"]
+    def debianWheezyArchs = []
+    if (params.BUILD_ALL == true) {
+        debianWheezyArchs = ["armhf", "armel", "amd64", "i386"]
+    } else {
+        debianWheezyArchs = ["amd64", "i386"]
+    }
+    tasks << getTasks(debianJessie, debianJessieArch, { distro, arch -> 
+        def myNode = {
+            node ('linux-build') {
+                dir ("build") {
+                    checkout scm
+                }
+                def runtime = docker.image("ztbuild/${distro}-${arch}:latest")
+                runtime.inside {
+                    dir('build/') {
+                        unstash "static-${arch}"
+                        sh "mv zerotier-one-static-${arch} zerotier-one && chmod +x zerotier-one && file ./zerotier-one" 
+                        sh "mv -f debian/rules.wheezy.static debian/rules"
+                        sh "mv -f debian/control.wheezy debian/control"
+                        sh "make debian"
+                    }
+                    sh "mkdir -p ${distro}"
+                    sh "mv *.deb ${distro}"
+                    archiveArtifacts artifacts: "${distro}/*.deb", onlyIfSuccessful: true
+                }
+                cleanWs deleteDirs: true, disableDeferredWipeout: true, notFailBuild: true
+            }
+        }
+        return myNode
+    })
+    
+    return tasks
+}
+
+def buildDebianNative() {
+    def tasks = [:]
+    def buster = ["debian-buster", "debian-stretch", "debian-bullseye", "debian-sid"]
+    def busterArchs = []
+    if (params.BUILD_ALL) {
+        busterArchs = ["s390x", "ppc64le", "i386", "armhf", "armel", "arm64", "amd64"]
+    } else {
+        busterArchs = ["amd64", "i386"]
+    }
+    
+    def build = { distro, arch -> 
+        def myNode = {
+            node ('linux-build') {
+                dir ("build") {
+                    checkout scm
+                }
+                def runtime = docker.image("ztbuild/${distro}-${arch}:latest")
+                runtime.inside {
+                    dir("build") {
+                        sh 'make debian'
+                    }
+                    sh "mkdir -p ${distro}"
+                    sh "mv *.deb ${distro}"
+                    archiveArtifacts artifacts: "${distro}/*.deb", onlyIfSuccessful: true
+                    cleanWs deleteDirs: true, disableDeferredWipeout: true, notFailBuild: true
+                }
+            }
+        }
+        return myNode
+    }
+    
+    tasks << getTasks(buster, busterArchs, build)
+    
+    // bash is broken when running under QEMU-s390x on Xenial
+    def xenial = ["ubuntu-xenial"]
+    def xenialArchs = []
+    if (params.BUILD_ALL == true) {
+        xenialArchs = ["i386", "amd64", "armhf", "arm64", "ppc64le"]
+    } else {
+        xenialArchs = ["i386", "amd64"]
+    }
+    tasks << getTasks(xenial, xenialArchs, build)
+    
+    def ubuntu = ["ubuntu-bionic", "ubuntu-eoan"]
+    def ubuntuArchs = []
+    if (params.BUILD_ALL == true) {
+        ubuntuArchs = ["i386", "amd64", "armhf", "arm64", "ppc64le", "s390x"]
+    } else {
+        ubuntuArchs = ["i386", "amd64"]
+    }
+    tasks << getTasks(ubuntu, ubuntuArchs, build)
+    
+    def kali = ["kali-rolling"]
+    def kaliArchs = ["amd64"]
+    tasks << getTasks(kali, kaliArchs, build)
+    
+    return tasks
+}
+
+def buildCentosNative() {
+    def tasks = [:]
+    
+    def build = { distro, arch -> 
+        def myNode = {
+            node ('linux-build') {
+                dir ("build") {
+                    checkout scm
+                }
+                def runtime = docker.image("ztbuild/${distro}-${arch}:latest")
+                runtime.inside {
+                    dir("build") {
+                        sh 'make -j4'
+                        sh 'make redhat'
+                        sh "mkdir -p ${distro}"
+                        sh "cp -av `find ~/rpmbuild/ -type f -name \"*.rpm\"` ${distro}/"
+                        archiveArtifacts artifacts: "${distro}/*.rpm", onlyIfSuccessful: true
+                    }
+                    
+                    cleanWs deleteDirs: true, disableDeferredWipeout: true, notFailBuild: true
+                }
+            }
+        }
+        return myNode
+    }
+    
+    def centos8 = ["centos8"]
+    def centos8Archs = []
+    if (params.BUILD_ALL == true) {
+        centos8Archs = ["amd64", "arm64", "ppc64le"]
+    } else {
+        centos8Archs = ["amd64"]
+    }
+    tasks << getTasks(centos8, centos8Archs, build)
+    
+    def centos7 = ["centos7"]
+    def centos7Archs = ["amd64"]
+    tasks << getTasks(centos7, centos7Archs, build)
+    
+    return tasks
+}

LICENSE.GPL-2

@@ -1,339 +0,0 @@
-                    GNU GENERAL PUBLIC LICENSE
-                       Version 2, June 1991
-
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-                            Preamble
-
-  The licenses for most software are designed to take away your
-freedom to share and change it.  By contrast, the GNU General Public
-License is intended to guarantee your freedom to share and change free
-software--to make sure the software is free for all its users.  This
-General Public License applies to most of the Free Software
-Foundation's software and to any other program whose authors commit to
-using it.  (Some other Free Software Foundation software is covered by
-the GNU Lesser General Public License instead.)  You can apply it to
-your programs, too.
-
-  When we speak of free software, we are referring to freedom, not
-price.  Our General Public Licenses are designed to make sure that you
-have the freedom to distribute copies of free software (and charge for
-this service if you wish), that you receive source code or can get it
-if you want it, that you can change the software or use pieces of it
-in new free programs; and that you know you can do these things.
-
-  To protect your rights, we need to make restrictions that forbid
-anyone to deny you these rights or to ask you to surrender the rights.
-These restrictions translate to certain responsibilities for you if you
-distribute copies of the software, or if you modify it.
-
-  For example, if you distribute copies of such a program, whether
-gratis or for a fee, you must give the recipients all the rights that
-you have.  You must make sure that they, too, receive or can get the
-source code.  And you must show them these terms so they know their
-rights.
-
-  We protect your rights with two steps: (1) copyright the software, and
-(2) offer you this license which gives you legal permission to copy,
-distribute and/or modify the software.
-
-  Also, for each author's protection and ours, we want to make certain
-that everyone understands that there is no warranty for this free
-software.  If the software is modified by someone else and passed on, we
-want its recipients to know that what they have is not the original, so
-that any problems introduced by others will not reflect on the original
-authors' reputations.
-
-  Finally, any free program is threatened constantly by software
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-   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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-    but WITHOUT ANY WARRANTY; without even the implied warranty of
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-
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-Public License instead of this License.

LICENSE.txt

@@ -1,37 +1,149 @@
-ZeroTier One - Network Virtualization Everywhere
-Copyright (C) 2011-2017  ZeroTier, Inc.  https://www.zerotier.com/
+-----------------------------------------------------------------------------
 
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
+Business Source License 1.1
 
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
+License text copyright (c) 2017 MariaDB Corporation Ab, All Rights Reserved.
+"Business Source License" is a trademark of MariaDB Corporation Ab.
 
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
+-----------------------------------------------------------------------------
 
-See LICENSE.GPL-3 for the full GNU GPL v3 license.
+Parameters
 
---
+Licensor:             ZeroTier, Inc.
+Licensed Work:        ZeroTier Network Virtualization Engine 1.4.4
+                      The Licensed Work is (c)2019 ZeroTier, Inc.
+Additional Use Grant: You may make use of the Licensed Work, provided you
+                      do not use it in any of the following ways:
 
-You can be released from the requirements of the license by purchasing
-a commercial license. Buying such a license is mandatory as soon as you
-develop commercial closed-source software that incorporates or links
-directly against ZeroTier software without disclosing the source code
-of your own application.
+                      * Sell hosted ZeroTier services as a "SaaS" Product
 
---
+                      (1) Operate or sell access to ZeroTier root servers,
+                      network controllers, or authorization key or certificate
+                      generation components of the Licensed Work as a
+                      for-profit service, regardless of whether the use of
+                      these components is sold alone or is bundled with other
+                      services. Note that this does not apply to the use of
+                      ZeroTier behind the scenes to operate a service not
+                      related to ZeroTier network administration.
 
-The above license does not apply to third party code included with or
-linked against by ZeroTier software. See the third party code section
-of the AUTHORS.md for an index of third party software included in
-this software repository.
+                      * Create Non-Open-Source Commercial Derviative Works
 
-Licenses for third party code are all relatively permissive: MIT,
-BSD, and public domain. The only exception is the tap-windows driver
-which is under the GPLv2, but this is only needed to produce the
-binary tap device driver used by the ZeroTier service on Windows.
+                      (2) Link or directly include the Licensed Work in a
+                      commercial or for-profit application or other product
+                      not distributed under an Open Source Initiative (OSI)
+                      compliant license. See: https://opensource.org/licenses
+
+                      (3) Remove the name, logo, copyright, or other branding
+                      material from the Licensed Work to create a "rebranded"
+                      or "white labeled" version to distribute as part of
+                      any commercial or for-profit product or service.
+
+                      * Certain Government Uses
+
+                      (4) Use or deploy the Licensed Work in a government
+                      setting in support of any active government function
+                      or operation with the exception of the following:
+                      physical or mental health care, family and social
+                      services, social welfare, senior care, child care, and
+                      the care of persons with disabilities.
+
+Change Date:          2025-01-01
+
+Change License:       Apache License version 2.0 as published by the Apache
+                      Software Foundation
+											https://www.apache.org/licenses/
+
+Alternative Licensing
+
+If you would like to use the Licensed Work in any way that conflicts with
+the stipulations of the Additional Use Grant, contact ZeroTier, Inc. to
+obtain an alternative commercial license.
+
+Visit us on the web at: https://www.zerotier.com/
+
+Notice
+
+The Business Source License (this document, or the "License") is not an Open
+Source license. However, the Licensed Work will eventually be made available
+under an Open Source License, as stated in this License.
+
+For more information on the use of the Business Source License for ZeroTier
+products, please visit our pricing page which contains license details and
+and license FAQ: https://zerotier.com/pricing
+
+For more information on the use of the Business Source License generally,
+please visit the Adopting and Developing Business Source License FAQ at
+https://mariadb.com/bsl-faq-adopting.
+
+-----------------------------------------------------------------------------
+
+Business Source License 1.1
+
+Terms
+
+The Licensor hereby grants you the right to copy, modify, create derivative
+works, redistribute, and make non-production use of the Licensed Work. The
+Licensor may make an Additional Use Grant, above, permitting limited
+production use.
+
+Effective on the Change Date, or the fourth anniversary of the first publicly
+available distribution of a specific version of the Licensed Work under this
+License, whichever comes first, the Licensor hereby grants you rights under
+the terms of the Change License, and the rights granted in the paragraph
+above terminate.
+
+If your use of the Licensed Work does not comply with the requirements
+currently in effect as described in this License, you must purchase a
+commercial license from the Licensor, its affiliated entities, or authorized
+resellers, or you must refrain from using the Licensed Work.
+
+All copies of the original and modified Licensed Work, and derivative works
+of the Licensed Work, are subject to this License. This License applies
+separately for each version of the Licensed Work and the Change Date may vary
+for each version of the Licensed Work released by Licensor.
+
+You must conspicuously display this License on each original or modified copy
+of the Licensed Work. If you receive the Licensed Work in original or
+modified form from a third party, the terms and conditions set forth in this
+License apply to your use of that work.
+
+Any use of the Licensed Work in violation of this License will automatically
+terminate your rights under this License for the current and all other
+versions of the Licensed Work.
+
+This License does not grant you any right in any trademark or logo of
+Licensor or its affiliates (provided that you may use a trademark or logo of
+Licensor as expressly required by this License).
+
+TO THE EXTENT PERMITTED BY APPLICABLE LAW, THE LICENSED WORK IS PROVIDED ON
+AN "AS IS" BASIS. LICENSOR HEREBY DISCLAIMS ALL WARRANTIES AND CONDITIONS,
+EXPRESS OR IMPLIED, INCLUDING (WITHOUT LIMITATION) WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, AND
+TITLE.
+
+-----------------------------------------------------------------------------
+
+MariaDB hereby grants you permission to use this License’s text to license
+your works, and to refer to it using the trademark "Business Source License",
+as long as you comply with the Covenants of Licensor below.
+
+Covenants of Licensor
+
+In consideration of the right to use this License’s text and the "Business
+Source License" name and trademark, Licensor covenants to MariaDB, and to all
+other recipients of the licensed work to be provided by Licensor:
+
+1. To specify as the Change License the GPL Version 2.0 or any later version,
+   or a license that is compatible with GPL Version 2.0 or a later version,
+   where "compatible" means that software provided under the Change License can
+   be included in a program with software provided under GPL Version 2.0 or a
+   later version. Licensor may specify additional Change Licenses without
+   limitation.
+
+2. To either: (a) specify an additional grant of rights to use that does not
+   impose any additional restriction on the right granted in this License, as
+   the Additional Use Grant; or (b) insert the text "None".
+
+3. To specify a Change Date.
+
+4. Not to modify this License in any other way.

OFFICIAL-RELEASE-STEPS.md

@@ -13,7 +13,6 @@ The version must be incremented in all of the following files:
     /zerotier-one.spec
     /debian/changelog
     /ext/installfiles/mac/ZeroTier One.pkgproj
-    /ext/installfiles/windows/chocolatey/zerotier-one.nuspec
     /ext/installfiles/windows/ZeroTier One.aip
     /windows/WinUI/AboutView.xaml
 
@@ -29,21 +28,6 @@ Mac's easy. Just type:
 
 You will need [Packages](http://s.sudre.free.fr/Software/Packages/about.html) and our release signing key in the keychain.
 
-## Linux
-
-See `LinuxBuild` environment on `linux-build` VM and use: `chroots/mount-build.sh`, `chroots/build.sh`, and the scripts in `build/` to make APT and RPM repositories.
-
 ## Windows
 
 First load the Visual Studio solution and rebuild the UI and ZeroTier One in both x64 and i386 `Release` mode. Then load [Advanced Installer Enterprise](http://www.advancedinstaller.com/), check that the version is correct, and build. The build will fail if any build artifacts are missing, and Windows must have our product singing key (from DigiCert) available to sign the resulting MSI file. The MSI must then be tested on at least a few different CLEAN Windows VMs to ensure that the installer is valid and properly signed.
-
-*After the MSI is published to download.zerotier.com in the proper RELEASE/#.#.#/dist subfolder for its version* the Chocolatey package must be rebuilt and published. Open a command prompt, change to `ext/installfiles/windows/chocolatey`, and type `choco pack`. Then use `choco push` to push it to Chocolatey (API key required).
-
-    choco pack
-    choco push zerotier-one.#.#.#.nupkg -s https://chocolatey.org/
-
-Note that this does not cover rebuilding the drivers or their containing MSI projects, as this is typically not necessary and they are shipped in binary form in the repository for convenience.
-
-## iOS, Android
-
-... no docs here yet since this is done entirely out of band with regular installs.

README.md

@@ -1,22 +1,32 @@
-ZeroTier - A Planetary Ethernet Switch
+ZeroTier - Global Area Networking
 ======
 
-ZeroTier is a smart programmable Ethernet switch for planet Earth.
+ZeroTier is a smart programmable Ethernet switch for planet Earth. It allows all networked devices, VMs, containers, and applications to communicate as if they all reside in the same physical data center or cloud region.
 
-It replaces the physical LAN/WAN boundary with a virtual one, allowing devices of any type at any location to be managed as if they all reside in the same cloud region or data center. All traffic is encrypted end-to-end and takes the most direct path available for minimum latency and maximum performance. The goals and design of ZeroTier are inspired by among other things the original [Google BeyondCorp](https://static.googleusercontent.com/media/research.google.com/en//pubs/archive/43231.pdf) paper and the [Jericho Forum](https://en.wikipedia.org/wiki/Jericho_Forum).
+This is accomplished by combining a cryptographically addressed and secure peer to peer network (termed VL1) with an Ethernet emulation layer somewhat similar to VXLAN (termed VL2). Our VL2 Ethernet virtualization layer includes advanced enterprise SDN features like fine grained access control rules for network micro-segmentation and security monitoring.
 
-Visit [ZeroTier's site](https://www.zerotier.com/?pk_campaign=github_ZeroTierOne) for more information and [pre-built binary packages](https://www.zerotier.com/download.shtml?pk_campaign=github_ZeroTierOne). Apps for Android and iOS are available for free in the Google Play and Apple app stores.
+All ZeroTier traffic is encrypted end-to-end using secret keys that only you control. Most traffic flows peer to peer, though we offer free (but slow) relaying for users who cannot establish peer to peer connections.
+
+The goals and design principles of ZeroTier are inspired by among other things the original [Google BeyondCorp](https://static.googleusercontent.com/media/research.google.com/en//pubs/archive/43231.pdf) paper and the [Jericho Forum](https://en.wikipedia.org/wiki/Jericho_Forum) with its notion of "deperimeterization."
+
+Visit [ZeroTier's site](https://www.zerotier.com/) for more information and [pre-built binary packages](https://www.zerotier.com/download/). Apps for Android and iOS are available for free in the Google Play and Apple app stores.
+
+ZeroTier is licensed under the [BSL version 1.1](https://mariadb.com/bsl11/). See [LICENSE.txt](LICENSE.txt) and the [ZeroTier pricing page](https://www.zerotier.com/pricing) for details. ZeroTier is free to use internally in businesses and academic institutions and for non-commercial purposes. Certain types of commercial use such as building closed-source apps and devices based on ZeroTier or offering ZeroTier network controllers and network management as a SaaS service require a commercial license.
+
+A small amount of third party code is also included in ZeroTier and is not subject to our BSL license. See [AUTHORS.md](AUTHORS.md) for a list of third party code, where it is included, and the licenses that apply to it. All of the third party code in ZeroTier is liberally licensed (MIT, BSD, Apache, public domain, etc.).
 
 ### Getting Started
 
-Everything in the ZeroTier world is controlled by two types of identifier: 40-bit/10-digit *ZeroTier addresses* and 64-bit/16-digit *network IDs*. A ZeroTier address identifies a node or "device" (laptop, phone, server, VM, app, etc.) while a network ID identifies a virtual Ethernet network that can be joined by devices.
+Everything in the ZeroTier world is controlled by two types of identifier: 40-bit/10-digit *ZeroTier addresses* and 64-bit/16-digit *network IDs*. These identifiers are easily distinguished by their length. A ZeroTier address identifies a node or "device" (laptop, phone, server, VM, app, etc.) while a network ID identifies a virtual Ethernet network that can be joined by devices.
 
-Another way of thinking about it is that ZeroTier addresses are port numbers on a giant planetary-sized smart switch while network IDs are VLANs to which these ports can be assigned. For more details read about VL1 and VL2 in [the ZeroTier manual](https://www.zerotier.com/manual.shtml).
+ZeroTier addresses can be thought of as port numbers on an enormous planet-wide enterprise Ethernet smart switch supporting VLANs. Network IDs are VLAN IDs to which these ports may be assigned. A single port can be assigned to more than one VLAN.
 
-*Network controllers* are ZeroTier nodes that act as access control certificate authorities and configuration managers for virtual networks. The first 40 bits (or 10 digits) of a network ID is the ZeroTier address of its controller. You can create networks with our [hosted controllers](https://my.zerotier.com/) and web UI/API or [host your own](controller/) if you don't mind posting some JSON configuration info or writing a script to do so.
+A ZeroTier address looks like `8056c2e21c` and a network ID looks like `8056c2e21c000001`. Network IDs are composed of the ZeroTier address of that network's primary controller and an arbitrary 24-bit ID that identifies the network on this controller. Network controllers are roughly analogous to SDN controllers in SDN protocols like [OpenFlow](https://en.wikipedia.org/wiki/OpenFlow), though as with the analogy between VXLAN and VL2 this should not be read to imply that the protocols or design are the same. You can use our convenient and inexpensive SaaS hosted controllers at [my.zerotier.com](https://my.zerotier.com/) or [run your own controller](controller/) if you don't mind messing around with JSON configuration files or writing scripts to do so.
 
 ### Project Layout
 
+The base path contains the ZeroTier One service main entry point (`one.cpp`), self test code, makefiles, etc.
+
  - `artwork/`: icons, logos, etc.
  - `attic/`: old stuff and experimental code that we want to keep around for reference.
  - `controller/`: the reference network controller implementation, which is built and included by default on desktop and server build targets.
@@ -28,41 +38,33 @@ Another way of thinking about it is that ZeroTier addresses are port numbers on
  - `macui/`: a Macintosh menu-bar app for controlling ZeroTier One, written in Objective C.
  - `node/`: the ZeroTier virtual Ethernet switch core, which is designed to be entirely separate from the rest of the code and able to be built as a stand-alone OS-independent library. Note to developers: do not use C++11 features in here, since we want this to build on old embedded platforms that lack C++11 support. C++11 can be used elsewhere.
  - `osdep/`: code to support and integrate with OSes, including platform-specific stuff only built for certain targets.
+ - `rule-compiler/`: JavaScript rules language compiler for defining network-level rules.
  - `service/`: the ZeroTier One service, which wraps the ZeroTier core and provides VPN-like connectivity to virtual networks for desktops, laptops, servers, VMs, and containers.
- - `tcp-proxy/`: TCP proxy code run by ZeroTier, Inc. to provide TCP fallback (this will die soon!).
- - `windows/`: Visual Studio solution files, Windows service code for ZeroTier One, and the Windows task bar app UI.
-
-The base path contains the ZeroTier One service main entry point (`one.cpp`), self test code, makefiles, etc.
+ - `windows/`: Visual Studio solution files, Windows service code, and the Windows task bar app UI.
 
 ### Build and Platform Notes
 
-To build on Mac and Linux just type `make`. On FreeBSD and OpenBSD `gmake` (GNU make) is required and can be installed from packages or ports. For Windows there is a Visual Studio solution in `windows/'.
+To build on Mac and Linux just type `make`. On FreeBSD and OpenBSD `gmake` (GNU make) is required and can be installed from packages or ports. For Windows there is a Visual Studio solution in `windows/`.
 
  - **Mac**
-   - Xcode command line tools for OSX 10.7 or newer are required.
-   - Tap device driver kext source is in `ext/tap-mac` and a signed pre-built binary can be found in `ext/bin/tap-mac`. You should not need to build it yourself. It's a fork of [tuntaposx](http://tuntaposx.sourceforge.net) with device names changed to `zt#`, support for a larger MTU, and tun functionality removed.
+   - Xcode command line tools for OSX 10.8 or newer are required.
  - **Linux**
-   - The minimum compiler versions required are GCC/G++ 4.9.3 or CLANG/CLANG++ 3.4.2.
+   - The minimum compiler versions required are GCC/G++ 4.9.3 or CLANG/CLANG++ 3.4.2. (Install `clang` on CentOS 7 as G++ is too old.)
    - Linux makefiles automatically detect and prefer clang/clang++ if present as it produces smaller and slightly faster binaries in most cases. You can override by supplying CC and CXX variables on the make command line.
-   - CentOS 7 ships with a version of GCC/G++ that is too old, but a new enough version of CLANG can be found in the *epel* repositories. Type `yum install epel-release` and then `yum install clang` to build there.
  - **Windows**
    - Windows 7 or newer is supported. This *may* work on Vista but isn't officially supported there. It will not work on Windows XP.
-   - We build with Visual Studio 2015. Older versions may not work. Clang or MinGW will also probably work but may require some makefile hacking.
-   - Pre-built signed Windows drivers are included in `ext/bin/tap-windows-ndis6`. The MSI files found there will install them on 32-bit and 64-bit systems. We don't recommend trying to build Windows drivers from scratch unless you know what you're doing. One does not simply "build" a Windows driver.
+   - We build with Visual Studio 2017. Older versions may not work. Clang or MinGW will also probably work but may require some makefile hacking.
  - **FreeBSD**
-   - Tested most recently on FreeBSD-11. Older versions may work but we're not sure.
-   - GCC/G++ 4.9 and gmake are required. These can be installed from packages or ports. Type `gmake` to build.
+   - GNU make is required. Type `gmake` to build.
  - **OpenBSD**
-   - There is a limit of four network memberships on OpenBSD as there are only four tap devices (`/dev/tap0` through `/dev/tap3`). We're not sure if this can be increased.
-   - OpenBSD lacks `getifmaddrs` (or any equivalent method) to get interface multicast memberships. As a result multicast will only work on OpenBSD for ARP and NDP (IP/MAC lookup) and not for other purposes.
-   - Only tested on OpenBSD 6.0. Older versions may not work.
-   - GCC/G++ 4.9 and gmake are required and can be installed using `pkg_add` or from ports. They get installed in `/usr/local/bin` as `egcc` and `eg++` and our makefile is pre-configured to use them on OpenBSD.
+   - There is a limit of four network memberships on OpenBSD as there are only four tap devices (`/dev/tap0` through `/dev/tap3`).
+   - GNU make is required. Type `gmake` to build.
 
 Typing `make selftest` will build a *zerotier-selftest* binary which unit tests various internals and reports on a few aspects of the build environment. It's a good idea to try this on novel platforms or architectures.
 
 ### Running
 
-Running *zerotier-one* with -h will show help.
+Running *zerotier-one* with `-h` option will show help.
 
 On Linux and BSD you can start the service with:
 
@@ -70,7 +72,7 @@ On Linux and BSD you can start the service with:
 
 A home folder for your system will automatically be created.
 
-The service is controlled via the JSON API, which by default is available at 127.0.0.1 port 9993. We include a *zerotier-cli* command line utility to make API calls for standard things like joining and leaving networks. The *authtoken.secret* file in the home folder contains the secret token for accessing this API. See README.md in [service/](service/) for API documentation.
+The service is controlled via the JSON API, which by default is available at 127.0.0.1 port 9993. We include a *zerotier-cli* command line utility to make API calls for standard things like joining and leaving networks. The *authtoken.secret* file in the home folder contains the secret token for accessing this API. See [service/README.md](service/README.md) for API documentation.
 
 Here's where home folders live (by default) on each OS:
 
@@ -85,7 +87,7 @@ Running ZeroTier One on a Mac is the same, but OSX requires a kernel extension.
 
 This will create the home folder for Mac, place *tap.kext* there, and set its modes correctly to enable ZeroTier One to manage it with *kextload* and *kextunload*.
 
-### Troubleshooting
+### Basic Troubleshooting
 
 For most users, it just works.
 
@@ -101,14 +103,6 @@ ZeroTier One peers will automatically locate each other and communicate directly
 
 Users behind certain types of firewalls and "symmetric" NAT devices may not able able to connect to external peers directly at all. ZeroTier has limited support for port prediction and will *attempt* to traverse symmetric NATs, but this doesn't always work. If P2P connectivity fails you'll be bouncing UDP packets off our relay servers resulting in slower performance. Some NAT router(s) have a configurable NAT mode, and setting this to "full cone" will eliminate this problem. If you do this you may also see a magical improvement for things like VoIP phones, Skype, BitTorrent, WebRTC, certain games, etc., since all of these use NAT traversal techniques similar to ours.
 
-If you're interested, there's a [technical deep dive about NAT traversal on our blog](https://www.zerotier.com/blog/?p=226?pk_campaign=github_ZeroTierOne). A troubleshooting tool to help you diagnose NAT issues is planned for the future as are uPnP/IGD/NAT-PMP and IPv6 transport.
-
 If a firewall between you and the Internet blocks ZeroTier's UDP traffic, you will fall back to last-resort TCP tunneling to rootservers over port 443 (https impersonation). This will work almost anywhere but is *very slow* compared to UDP or direct peer to peer connectivity.
 
-### Contributing
-
-Please make pull requests against the `dev` branch. The `master` branch is release, and `edge` is for unstable and work in progress changes and is not likely to work.
-
-### License
-
-The ZeroTier source code is open source and is licensed under the GNU GPL v3 (not LGPL). If you'd like to embed it in a closed-source commercial product or appliance, please e-mail [contact@zerotier.com](mailto:contact@zerotier.com) to discuss commercial licensing. Otherwise it can be used for free.
+Additional help can be found in our [knowledge base](https://zerotier.atlassian.net/wiki/spaces/SD/overview).

RELEASE-NOTES.md

@@ -1,6 +1,120 @@
 ZeroTier Release Notes
 ======
 
+# 2021-02-02 -- Version 1.6.3
+
+ * Likely fix for GitHub issue #1334, an issue that could cause ZeroTier to
+   go into a "coma" on some networks.
+ * Also groundhog day
+
+# 2020-11-30 -- Version 1.6.2
+
+ * Fix an ARM hardware AES crypto issue (not an exploitable vulnerability).
+ * Fix a Linux network leave hang due to a mutex deadlock.
+
+# 2020-11-24 -- Version 1.6.1
+
+This release fixes some minor bugs and other issues in 1.6.0.
+
+ * Fixed a bug that caused IP addresses in the 203.0.0.0/8 block to be miscategorized as not being in global scope.
+ * Changed Linux builds to (hopefully) fix LXC and SELinux issues.
+ * Fixed unaligned memory access that caused crash on FreeBSD systems on the ARM architecture.
+ * Merged CLI options for controlling bonded devices into the beta multipath code.
+ * Updated Windows driver with Microsoft cross-signing to fix issues on some Windows systems.
+
+# 2020-11-19 -- Version 1.6.0
+
+Version 1.6.0 is a major release that incorporates back-ported features from the 2.0 branch, which is still under development. It also fixes a number of issues.
+
+New features and improvements (including those listed under 1.5.0):
+
+ * **Apple Silicon** (MacOS ARM64) native support via universal binary. ZeroTier now requires the very latest Xcode to build.
+ * **Linux performance improvements** for up to 25% faster tun/tap I/O performance on multi-core systems.
+ * **Multipath support** with modes modeled after the Linux kernel's bonding driver. This includes active-passive and active-active modes with fast failover and load balancing. See section 2.1.5 of the manual.
+ * **DNS configuration** push from network controllers to end nodes, with locally configurable permissions for whether or not push is allowed.
+ * **AES-GMAC-SIV** encryption mode, which is both somewhat more secure and significantly faster than the old Salsa20/12-Poly1305 mode on hardware that supports AES acceleration. This includes virtually all X86-64 chips and most ARM64. This mode is based on AES-SIV and has been audited by Trail of Bits to ensure that it is equivalent security-wise.
+
+Bug fixes:
+
+ * **Managed route assignment fixes** to eliminate missing routes on Linux and what we believe to be the source of sporadic high CPU usage on MacOS.
+ * **Hang on shutdown** issues should be fixed.
+ * **Sporadic multicast outages** should be fixed.
+
+Known remaining issues:
+
+ * AES hardware acceleration is not yet supported on 32-bit ARM, PowerPC (32 or 64), or MIPS (32 or 64) systems. Currently supported are X86-64 and ARM64/AARCH64 with crypto extensions.
+
+# 2020-10-05 -- Version 1.5.0 (actually 1.6.0-beta1)
+
+Version 1.6.0 (1.5.0 is a beta!) is a significant release that incorporates a number of back-ported fixes and features from the ZeroTier 2.0 tree.
+
+Major new features are:
+
+ * **Multipath support** with modes modeled after the Linux kernel's bonding driver. This includes active-passive and active-active modes with fast failover and load balancing. See section 2.1.5 of the manual.
+ * **DNS configuration** push from network controllers to end nodes, with locally configurable permissions for whether or not push is allowed.
+ * **AES-GMAC-SIV** encryption mode, which is both somewhat more secure and significantly faster than the old Salsa20/12-Poly1305 mode on hardware that supports AES acceleration. This includes virtually all X86-64 chips and most ARM64. This mode is based on AES-SIV and has been audited by Trail of Bits to ensure that it is equivalent security-wise.
+
+Known issues that are not yet fixed in this beta:
+
+ * Some Mac users have reported periods of 100% CPU in kernel_task and connection instability after leaving networks that have been joined for a period of time, or needing to kill ZeroTier and restart it to finish leaving a network. This doesn't appear to affect all users and we haven't diagnosed the root cause yet.
+ * The service sometimes hangs on shutdown requiring a kill -9. This also does not affect all systems or users.
+ * AES hardware acceleration is not yet supported on 32-bit ARM, PowerPC (32 or 64), or MIPS (32 or 64) systems. Currently supported are X86-64 and ARM64/AARCH64 with crypto extensions.
+ * Some users have reported multicast/broadcast outages on networks lasting up to 30 seconds. Still investigating.
+
+We're trying to fix all these issues before the 1.6.0 release. Stay tuned.
+
+# 2019-08-30 -- Version 1.4.6
+
+ * Update default root list to latest
+ * ARM32 platform build and flag fixes
+ * Add a clarification line to LICENSE.txt
+ * Fix license message in CLI
+ * Windows service now looks for service command line arguments
+ * Fixed a bug that could cause excessive queued multicasts
+
+# 2019-08-23 -- Version 1.4.4
+
+ * Change license from GPL3 to BSL 1.1, see LICENSE.txt
+ * Fix an issue with the "ipauth" rule and auto-generated unforgeable IPv6 addresses
+ * Fix socket/bind errors setting IPs and routes on Linux
+
+# 2019-08-12 -- Version 1.4.2
+
+ * Fix high CPU use bug on some platforms
+ * Fix issues with PostgreSQL controller DB (only affects Central)
+ * Restore backward compatibility with MacOS versions prior to 10.13
+
+# 2019-07-29 -- Version 1.4.0
+
+### Major Changes
+
+ * Mac version no longer requires a kernel extension, instead making use of the [feth interfaces](https://apple.stackexchange.com/questions/337715/fake-ethernet-interfaces-feth-if-fake-anyone-ever-seen-this).
+ * Added support for concurrent multipath (multiple paths at once) with traffic weighting by link quality and faster recovery from lost links.
+ * Added under-the-hood support for QoS (not yet exposed) that will eventually be configurable via our rules engine.
+
+### Minor Changes and Bug Fixes
+
+ * Experimental controller DB driver for [LF](https://github.com/zerotier/lf) to store network controller data (LFDB.cpp / LFDB.hpp).
+ * Modified credential push and direct path push timings and algorithms to somewhat reduce "chattiness" of the protocol when idle. More radical background overhead reductions will have to wait for the 2.x line.
+ * Removed our beta/half-baked integration of Central with the Windows UI. We're going to do a whole new UI of some kind in the future at least for Windows and Mac.
+ * Fixed stack overflow issues on Linux versions using musl libc.
+ * Fixed some alignment problems reported on ARM and ARM64, but some reports we could not reproduce so please report any issues with exact chip, OS/distro, and ZeroTier version in use.
+ * Fixed numerous other small issues and bugs such as ARM alignment issues causing crashes on some devices.
+ * Windows now sets the adapter name such that it is consistent in both the Windows UI and command line utilities.
+
+# 2018-07-27 -- Version 1.2.12
+
+ * Fixed a bug that caused exits to take a long time on Mac due to huge numbers of redundant attempts to delete managed routes.
+ * Fixed a socket limit problem on Windows that caused the ZeroTier service to run out of sockets, causing the UI and CLI to be unable to access the API.
+ * Fixed a threading bug in the ZeroTier Core, albeit one that never manifested on the regular ZeroTier One service/client.
+ * Fixed a bug that could cause the service to crash if an authorized local client accessed an invalid URL via the control API. (Not exploitable since you needed admin access anyway.)
+
+# 2018-05-08 -- Version 1.2.10
+
+ * Fix bug loading `moons.d/` files for federated root operation.
+ * Fix compile problem with ZT_DEBUG on some versions of `clang`
+ * Fix slow network startup bug related to loading of `networks.d/` cache files
+
 # 2018-04-27 -- Version 1.2.8
 
  * Linux version once again builds with PIE (position independent executable) flags
@@ -30,7 +144,7 @@ ZeroTier Release Notes
     * Fixed two very rare multithreading issues that were only observed on certain systems
  * Platform-Specific Changes
     * MacOS
-        * Installer now loads the kernel extension right away so that High Sierra users will see the prompt to authorize it. This is done in the "Security & Privacy" preference pane and must be done driectly on the console (not via remote desktop). On High Sierra and newer kexts must be authorized at the console via security settings system preferences pane.
+        * Installer now loads the kernel extension right away so that High Sierra users will see the prompt to authorize it. This is done in the "Security & Privacy" preference pane and must be done directly on the console (not via remote desktop). On High Sierra and newer kexts must be authorized at the console via security settings system preferences pane.
     * Windows
         * The Windows installer should now install the driver without requiring a special prompt in most cases. This should make it easier for our packages to be accepted into and updated in the Chocolatey repository and should make it easier to perform remote installs across groups of machines using IT management and provisioning tools.
         * The Windows official packages are now signed with an EV certificate (with hardware key).
@@ -72,7 +186,7 @@ The largest new feature in 1.2.0, and the product of many months of work, is our
 
 Rules allow you to filter packets on your network and vector traffic to security observers. Security observation can be performed in-band using REDIRECT or out of band using TEE.
 
-Tags and capabilites provide advanced methods for implementing fine grained permission structures and micro-segmentation schemes without bloating the size and complexity of your rules table.
+Tags and capabilities provide advanced methods for implementing fine grained permission structures and micro-segmentation schemes without bloating the size and complexity of your rules table.
 
 See the [rules engine announcement blog post](https://www.zerotier.com/blog/?p=927) for an in-depth discussion of theory and implementation. The [manual](https://www.zerotier.com/manual.shtml) contains detailed information on rule, tag, and capability use, and the `rule-compiler/` subfolder of the ZeroTier source tree contains a JavaScript function to compile rules in our human-readable rule definition language into rules suitable for import into a network controller. (ZeroTier Central uses this same script to compile rules on [my.zerotier.com](https://my.zerotier.com/).)
 
@@ -155,7 +269,7 @@ A special kind of public network called an ad-hoc network may be accessed by joi
     | Start of port range (hex)
     Reserved ZeroTier address prefix indicating a controller-less network
 
-Ad-hoc networks are public (no access control) networks that have no network controller. Instead their configuration and other credentials are generated locally. Ad-hoc networks permit only IPv6 UDP and TCP unicast traffic (no multicast or broadcast) using 6plane format NDP-emulated IPv6 addresses. In addition an ad-hoc network ID encodes an IP port range. UDP packets and TCP SYN (connection open) packets are only allowed to desintation ports within the encoded range.
+Ad-hoc networks are public (no access control) networks that have no network controller. Instead their configuration and other credentials are generated locally. Ad-hoc networks permit only IPv6 UDP and TCP unicast traffic (no multicast or broadcast) using 6plane format NDP-emulated IPv6 addresses. In addition an ad-hoc network ID encodes an IP port range. UDP packets and TCP SYN (connection open) packets are only allowed to destination ports within the encoded range.
 
 For example `ff00160016000000` is an ad-hoc network allowing only SSH, while `ff0000ffff000000` is an ad-hoc network allowing any UDP or TCP port.
 
@@ -170,7 +284,7 @@ If you have data in an old SQLite3 controller we've included a NodeJS script in
 ## Major Bug Fixes in 1.2.0
 
  * **The Windows HyperV 100% CPU bug is FINALLY DEAD**: This long-running problem turns out to have been an issue with Windows itself, but one we were triggering by placing invalid data into the Windows registry. Microsoft is aware of the issue but we've also fixed the triggering problem on our side. ZeroTier should now co-exist quite well with HyperV and should now be able to be bridged with a HyperV virtual switch.
- * **Segmenation faults on musl-libc based Linux systems**: Alpine Linux and some embedded Linux systems that use musl libc (a minimal libc) experienced segmentation faults. These were due to a smaller default stack size. A work-around that sets the stack size for new threads has been added.
+ * **Segmentation faults on musl-libc based Linux systems**: Alpine Linux and some embedded Linux systems that use musl libc (a minimal libc) experienced segmentation faults. These were due to a smaller default stack size. A work-around that sets the stack size for new threads has been added.
  * **Windows firewall blocks local JSON API**: On some Windows systems the firewall likes to block 127.0.0.1:9993 for mysterious reasons. This is now fixed in the installer via the addition of another firewall exemption rule.
  * **UI crash on embedded Windows due to missing fonts**: The MSI installer now ships fonts and will install them if they are not present, so this should be fixed.