diff --git a/.travis.yml b/.travis.yml
index bcbd000f6b9ad5b0510f804ac4a3b19306b39c03..063b78a63e5b9f52dce0e99c56a2a6f91353ceb3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,9 +9,10 @@ before_install:
   - export PATH=~/bin:"$PATH"
 language: go
 go:
-  - 1.4.2
+  - 1.5.1
 script: script/test
 install: script/cached-bundle install --without development --deployment --jobs=3 --retry=3
+after_success: script/publish-release
 notifications:
   email: false
 env:
@@ -19,3 +20,4 @@ env:
     - AMAZON_S3_BUCKET=ci-cache
     - AMAZON_ACCESS_KEY_ID=AKIAJQCVTDEWQHRPBPGQ
     - secure: "XAZv5xyNjWt7F9hG0MZhDANVJ5h/ajEZvfJOEIZRQlE3X5x6oVgI8blLh/MmlRSF0kIyLckcn6t2ccjSOvwN2hca5bwZSjIqoKbJyNe2cmkxfi2432vEOu3Ve6PT5hZWX4R5RgT+xWyMjIJcdF3gUMP7ErXl64aEncBzeW6OoXM="
+    - secure: "eroPaeI0ohBaUjuc/y22VgyN+GDHeWXPIMAZTvSkNZfwL+Oxy861aeawi0zQeduEYon3fSfMBbOxJbrA+6IMU0W+DlR7TTBJ9dbGmeTFCu6ypJRJJtaE5/Kn9PwKjyG6XiPR/YR6818Jiv6yVCLQspjFbhCuKeFoHcu7RAmazKE="
diff --git a/script/build b/script/build
index 09ad698cbee83c2424537c1b76871bd2c4237f85..070bd911e7754defd09101868a5406d091d53ad8 100755
--- a/script/build
+++ b/script/build
@@ -41,7 +41,7 @@ up_to_date() {
 
 build_hub() {
   setup_gopath
-  [ -n "$1" ] && (up_to_date "$1" || go build -ldflags "-X github.com/github/hub/version.Version `./script/version`" -o "$1")
+  [ -n "$1" ] && (up_to_date "$1" || go build -ldflags "-X github.com/github/hub/version.Version=`./script/version`" -o "$1")
 }
 
 test_hub() {
@@ -60,6 +60,9 @@ case "$1" in
 test )
   test_hub
   ;;
+files )
+  find_source_files
+  ;;
 -h | --help )
   sed -ne '/^#/!q;s/.\{1,2\}//;1d;p' < "$0"
   exit
diff --git a/script/changelog b/script/changelog
new file mode 100755
index 0000000000000000000000000000000000000000..3e474f9a45bc82261bec33b6e06b6e9bd1eb6582
--- /dev/null
+++ b/script/changelog
@@ -0,0 +1,21 @@
+#!/bin/bash
+# vi:ft=sh:
+# Usage: script/changelog [HEAD]
+#
+# Show changes to runtime files between HEAD and previous release tag.
+set -e
+
+head="${1:-HEAD}"
+
+for sha in `git rev-list -n 100 --first-parent "$head"^`; do
+  previous_tag="$(git tag -l --points-at "$sha" 'v*' 2>/dev/null || true)"
+  [ -z "$previous_tag" ] || break
+done
+
+if [ -z "$previous_tag" ]; then
+  echo "Couldn't detect previous version tag" >&2
+  exit 1
+fi
+
+git log --no-merges --format='%C(auto,green)* %s%C(auto,reset)%n%w(0,2,2)%+b' \
+  --reverse "${previous_tag}..${head}" -- `script/build files`
diff --git a/script/cross-compile b/script/cross-compile
new file mode 100755
index 0000000000000000000000000000000000000000..c94f79a793d02bb7353860be8a2abfec403b1854
--- /dev/null
+++ b/script/cross-compile
@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+# Usage: script/cross-compile <version>
+#
+# Packages the project over a matrix of supported OS and architectures and
+# prints the asset filenames and labels suitable for upload.
+set -e
+
+version="${1?}"
+
+echo '
+  darwin   amd64    OS X
+  freebsd  386      FreeBSD 32-bit
+  freebsd  amd64    FreeBSD 64-bit
+  linux    386      Linux 32-bit
+  linux    amd64    Linux 64-bit
+  windows  386      Windows 32-bit
+  windows  amd64    Windows 64-bit
+' | {
+  while read os arch label; do
+    [ -n "$os" ] || continue
+
+    label="hub ${version} for ${label}"
+    if ! file="$(script/package "$os" "$arch" "$version")"; then
+      echo "packaging $label failed" >&2
+      continue
+    fi
+
+    printf "%s\t%s\n" "$file" "$label"
+  done
+}
diff --git a/script/github-release b/script/github-release
new file mode 100755
index 0000000000000000000000000000000000000000..b6037a25f4b533cb0972d78423c2ea3850c279a7
--- /dev/null
+++ b/script/github-release
@@ -0,0 +1,66 @@
+#!/usr/bin/env ruby
+# Usage: script/cross-compile | script/github-release <name> <version>
+#
+# Takes in a list of asset filenames + labels via stdin and uploads them to the
+# corresponding release on GitHub. The release is created as a draft first if
+# missing and its body is the git changelog since the previous tagged release.
+require "json"
+require "cgi"
+
+def github_host() ENV.fetch("GITHUB_HOST", "https://api.github.com") end
+def oauth_token() ENV["GITHUB_OAUTH"] end
+
+def escape(str) CGI.escape(str.to_s) end
+
+def api(*args)
+  path = args.shift
+  cmd = ["curl", "-s", "--netrc"]
+  cmd << ( path.include?("://") ? path : File.join(github_host, path) )
+  cmd << "-H" << "Authorization: token #{oauth_token}" if oauth_token
+
+  if args.last.is_a? Hash
+    payload = JSON.dump(args.pop)
+    cmd << "--data" << "@-"
+    cmd << "-H" << "Content-Type: application/json"
+  end
+
+  cmd.concat args
+
+  IO.popen(cmd, payload ? "r+" : "r") do |curl|
+    if payload
+      curl.write payload
+      curl.close_write
+    end
+    JSON.parse(curl.read)
+  end
+end
+
+repo = ENV["TRAVIS_REPO_SLUG"]
+project_name, version = ARGV
+
+release = api("/repos/#{repo}/releases").find { |rel|
+  rel.fetch("id") && rel.fetch("tag_name") == "v#{version}"
+}
+
+unless release
+  release = api "/repos/#{repo}/releases",
+                tag_name: "v#{version}",
+                name: "#{project_name} #{version}",
+                body: `script/changelog`,
+                draft: true,
+                prerelease: version.include?('-')
+end
+
+upload_url = release.fetch("upload_url")
+
+STDIN.each do |line|
+  filename, label = line.chomp.split("\t", 2)
+  name = File.basename filename
+
+  if asset = release["assets"].find { |a| a.fetch("name") == name }
+    api asset.fetch("url"), "-X", "DELETE"
+  end
+
+  upload = upload_url.sub(/\{\?.+?\}/, "?name=#{escape name}&label=#{escape label}")
+  api upload, "-H", "Content-Type: application/octet-stream", "--data-binary", "@#{filename}"
+end
diff --git a/script/install.bat b/script/install.bat
new file mode 100644
index 0000000000000000000000000000000000000000..2eb5f97c13614f9ebd7a48826f666874ed3f7d80
--- /dev/null
+++ b/script/install.bat
@@ -0,0 +1,40 @@
+@echo off
+CLS
+
+:checkPrivileges
+NET FILE 1>NUL 2>NUL
+if '%errorlevel%' == '0' ( goto gotPrivileges ) else ( goto getPrivileges )
+
+:getPrivileges
+if '%1'=='ELEV' (shift & goto gotPrivileges)
+echo.
+echo **************************************
+echo Installing GitHub CLI as Administrator
+echo **************************************
+
+setlocal DisableDelayedExpansion
+set "batchPath=%~0"
+setlocal EnableDelayedExpansion
+echo Set UAC = CreateObject^("Shell.Application"^) > "%temp%\OEgetPrivileges.vbs"
+echo UAC.ShellExecute "!batchPath!", "ELEV", "", "runas", 1 >> "%temp%\OEgetPrivileges.vbs"
+"%temp%\OEgetPrivileges.vbs"
+exit /B
+
+:gotPrivileges
+
+setlocal & cd /d %~dp0
+
+set HUB_BIN_PATH="%LOCALAPPDATA%\GitHubCLI\bin"
+IF EXIST %HUB_BIN_PATH% GOTO DIRECTORY_EXISTS
+mkdir %HUB_BIN_PATH%
+set "path=%PATH%;%HUB_BIN_PATH:"=%"
+1>NUL setx PATH "%PATH%" /M
+:DIRECTORY_EXISTS
+
+:: Delete any existing programs
+2>NUL del /q %HUB_BIN_PATH%\hub*
+
+1>NUL copy .\bin\hub.exe %HUB_BIN_PATH%\hub.exe
+
+echo hub.exe installed successfully. Press any key to exit
+pause > NUL
diff --git a/script/install.sh b/script/install.sh
new file mode 100644
index 0000000000000000000000000000000000000000..869880c20e577b29965ca8ac904a608aae558d53
--- /dev/null
+++ b/script/install.sh
@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+# Usage: [sudo] [prefix=/usr/local] ./install
+set -e
+
+case "$1" in
+'-h' | '--help' )
+  sed -ne '/^#/!q;s/.\{1,2\}//;1d;p' < "$0"
+  exit 0
+  ;;
+esac
+
+if [[ $BASH_SOURCE == */* ]]; then
+  cd "${BASH_SOURCE%/*}"
+fi
+
+prefix="${PREFIX:-$prefix}"
+prefix="${prefix:-/usr/local}"
+
+for src in `find bin share -type f`; do
+  dest="${prefix}/${src}"
+  mkdir -p "${dest%/*}"
+  install "$src" "$dest"
+done
diff --git a/script/package b/script/package
index 0a6efedc4ed672cb41a420cae86071461fc3dfda..93405813b687f4bca125735ab8c3c30d1dee8d52 100755
--- a/script/package
+++ b/script/package
@@ -1,166 +1,63 @@
-#!/usr/bin/env ruby
-# Usage: script/package
+#!/usr/bin/env bash
+# Usage: script/package <os> <arch> <version>
 #
-# Packages `hub` for release for current platform
-
-require "fileutils"
-include FileUtils
-
-module OS
-  class << self
-    def type
-      if darwin?
-        "darwin"
-      elsif linux?
-        "linux"
-      elsif windows?
-        "windows"
-      else
-        raise "Unknown OS type #{RUBY_PLATFORM}"
-      end
-    end
-
-    def friendly_name
-      if darwin?
-        "mac"
-      elsif linux?
-        "linux"
-      elsif windows?
-        "windows"
-      else
-        raise "Unknown OS type #{RUBY_PLATFORM}"
-      end
-    end
-
-    def windows?
-      (/cygwin|mswin|mingw|bccwin|wince|emx/ =~ RUBY_PLATFORM) != nil
-    end
-
-    def windows_64?
-      windows? && /x64/ =~ RUBY_PLATFORM
-    end
-
-    def darwin?
-      (/darwin/ =~ RUBY_PLATFORM) != nil
-    end
-
-    def linux?
-      (/linux/ =~ RUBY_PLATFORM) != nil
-    end
-  end
-end
-
-class Packer
-  class << self
-    def pack!
-      self.new.pack!
-    end
-  end
-
-  attr_reader :version
-
-  def initialize
-    @version = parse_version!
-  end
-
-  def pack!
-    unless ENV["SKIP_TOOLCHAIN"]
-      install_gox!
-      build_toolchain!
-    end
-    run_tests! unless OS.windows? || ENV["SKIP_TEST"] # cukes don't run on Windows
-    build_hub!
-    cp_assets
-    tar_gzip
-  end
-
-  private
-
-  def exec!(cmd)
-    io = IO.popen(cmd)
-    begin
-      while line = io.gets
-        puts line.chomp
-      end
-    ensure
-      io.close
-    end
-
-    raise "Fail to execute #{cmd}" unless $?.to_i == 0
-  end
-
-  # Returns the root path to paths
-  def root_path(*paths)
-    current = File.expand_path(File.dirname(__FILE__)) # current is the target folder
-    File.expand_path File.join(current, "..", paths)
-  end
-
-  def glob_dir(path)
-    Dir[path].select { |d| File.directory?(d) }
-  end
-
-  def parse_version!
-    content = File.read root_path("version", "version.go")
-    match = /var Version = "(.+)"/.match content
-    raise "Fail to parse Hub version" unless match
-
-    match[1]
-  end
-
-  def install_gox!
-    puts "Installing github.com/mitchellh/gox"
-    result = system "go get github.com/mitchellh/gox"
-    raise "Fail to install gox" unless result
-  end
-
-  def build_toolchain!
-    puts "Building Go toolchain"
-    result = system "gox -build-toolchain -os=#{OS.type}"
-    raise "Fail to build Go toolchain" unless result
-  end
-
-  def run_tests!
-    puts "Running Hub tests"
-
-    bootstrap_script = root_path("script", "bootstrap")
-    exec!(bootstrap_script)
-
-    test_script = root_path("script", "test")
-    exec!(test_script)
-  end
-
-  def build_hub!
-    puts "Building for #{OS.friendly_name}"
-    release_version = `script/version`.strip
-    output = root_path("target", "{{.Dir}}-#{OS.friendly_name}-{{.Arch}}-#{version}", "{{.Dir}}")
-    # gox doesn't build for 64 bit and 32 bit on 64 bit Windows
-    # specifying osarch for Windows
-    # see https://github.com/mitchellh/gox/issues/19#issuecomment-68117016
-    osarch = OS.windows? ? "windows/#{OS.windows_64? ? "amd64" : "386"}" : ""
-    cmd = "gox -os=#{OS.type} -output=#{output} -ldflags \"-X github.com/github/hub/version.Version #{release_version}\""
-    cmd += " -osarch=#{osarch}" unless osarch.empty?
-    exec!(cmd)
-  end
-
-  def cp_assets
-    path = root_path("target", "*#{OS.friendly_name}*")
-    glob_dir(path).each do |dir|
-      puts "Copying assets to #{dir}"
-      ["README.md", "LICENSE", "etc/", "man/"].each do |f|
-        cp_r f, File.join(dir, f)
-      end
-    end
-  end
-
-  def tar_gzip
-    path = root_path("target", "*#{OS.friendly_name}*")
-    glob_dir(path).each do |dir|
-      puts "Archiving #{dir}"
-      Dir.chdir(root_path("target")) do
-        exec!("tar -zcf #{File.basename(dir)}.tar.gz #{File.basename(dir)}")
-      end
-    end
-  end
-end
-
-Packer.pack!
+# Packages the project as a release asset and prints the archive's filename.
+set -e
+
+os="${1?}"
+arch="${2?}"
+version="${3?}"
+
+release="hub-${os}-${arch}-${version}"
+
+case "$os" in
+  darwin | freebsd | linux | netbsd | openbsd | solaris | windows ) ;;
+  * ) echo "unsupported OS: $os" >&2; exit 1 ;;
+esac
+
+case "$arch" in
+  386 | amd64 ) ;;
+  * ) echo "unsupported arch: $arch" >&2; exit 1 ;;
+esac
+
+export GOOS="$os"
+export GOARCH="$arch"
+
+tmpdir="tmp/${release}"
+rm -rf "$tmpdir"
+
+exename="${tmpdir}/bin/hub"
+[ "$os" != "windows" ] || exename="${exename}.exe"
+mkdir -p "${exename%/*}"
+script/build -o "$exename"
+
+crlf() {
+  sed $'s/$/\r/' "$1" > "$2"
+}
+
+if [ "$os" = "windows" ]; then
+  crlf README.md "${tmpdir}/README.txt"
+  crlf LICENSE "${tmpdir}/LICENSE.txt"
+  crlf man/hub.1.html "${tmpdir}/hub.html"
+  crlf script/install.bat "${tmpdir}/install.bat"
+else
+  cp -R README.md LICENSE etc "$tmpdir"
+  mkdir -p "${tmpdir}/share/man/man1"
+  cp man/hub.1 "${tmpdir}/share/man/man1"
+  cp script/install.sh "${tmpdir}/install"
+  chmod +x "${tmpdir}/install"
+fi
+
+if [ "$os" = "windows" ]; then
+  file="${PWD}/${tmpdir}.zip"
+  rm -f "$file"
+  pushd "$tmpdir" >/dev/null
+  zip -r "$file" * >/dev/null
+else
+  file="${PWD}/${tmpdir}.tgz"
+  rm -f "$file"
+  pushd "${tmpdir%/*}" >/dev/null
+  tar -czf "$file" "$release"
+fi
+
+echo "$file"
diff --git a/script/publish-release b/script/publish-release
new file mode 100755
index 0000000000000000000000000000000000000000..da404248736d1bdcff889e2570ae6d57c5095e6a
--- /dev/null
+++ b/script/publish-release
@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+set -e
+
+if [[ $TRAVIS_TAG == v* ]] && [ "$TRAVIS_OS_NAME" = "linux" ] && [ -n "$GITHUB_OAUTH" ]; then
+  version="${TRAVIS_TAG#v}"
+  script/cross-compile "$version" | script/github-release hub "$version"
+fi