diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 000000000..f4a67ea31
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,32 @@
+name: Test Posh-Git
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: ['windows-latest', 'macos-latest', 'ubuntu-latest']
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v2
+      - name: install dependencies
+        shell: pwsh
+        run: |
+          "Git version: $(git --version)"
+          "PSVersion:   $($PSVersionTable.PSVersion)"
+          "Host name:   $($Host.Name)"
+
+          Set-PSRepository -Name PSGallery -InstallationPolicy Trusted
+          Install-Module Pester -MinimumVersion 5.0.0 -MaximumVersion 5.99.99 -Scope CurrentUser -Force
+      - name: run tests
+        shell: pwsh
+        run: |
+          Import-Module Pester -PassThru
+          $ErrorActionPreference = 'Continue'
+          $res = Invoke-Pester -Path test -Output Detailed -PassThru -ErrorAction SilentlyContinue
+          if (!$res -or ($res.FailedCount -gt 0)) {
+            $Error | Format-List * -Force
+            exit 1
+          }
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index baf9c4bf4..000000000
--- a/.travis.yml
+++ /dev/null
@@ -1,37 +0,0 @@
-language: generic
-
-branches:
-  only:
-  - master
-
-stages:
-- name: linux
-- name: osx
-  if: type != pull_request OR head_branch =~ osx
-
-jobs:
-  include:
-    - stage: linux
-      os: linux
-      dist: xenial
-      sudo: false
-      addons:
-        apt:
-          sources:
-            - sourceline: deb [arch=amd64] https://packages.microsoft.com/ubuntu/16.04/prod xenial main
-              key_url: https://packages.microsoft.com/keys/microsoft.asc
-          packages:
-            - powershell
-      before_install:
-        - pwsh -c 'Set-PSRepository -Name PSGallery -InstallationPolicy Trusted'
-        - pwsh -c 'Install-Module Pester -AllowPrerelease -MinimumVersion 5.0.0 -MaximumVersion 5.99.99 -Scope CurrentUser -Force | Out-Null'
-    - stage: osx
-      os: osx
-      before_install:
-        - brew update
-        - brew install --cask powershell
-        - pwsh -c 'Set-PSRepository -Name PSGallery -InstallationPolicy Trusted'
-        - pwsh -c 'Install-Module Pester -MinimumVersion 5.0.0 -MaximumVersion 5.99.99 -Scope CurrentUser -Force | Out-Null'
-
-script:
-  - pwsh -c 'Import-Module Pester -PassThru; $res = Invoke-Pester -Path test -Output Detailed -PassThru -ErrorAction SilentlyContinue; if (!$res -or ($res.FailedCount -gt 0)) { $Error | Format-List * -Force; exit 1 }'
diff --git a/appveyor.yml b/appveyor.yml
deleted file mode 100644
index 41c1c4b6d..000000000
--- a/appveyor.yml
+++ /dev/null
@@ -1,64 +0,0 @@
-os:
-  - "WMF 5"
-
-environment:
-  CA_KEY:
-    secure: JQtUaB+zduPID8bzI5nfHRc2V6xYJiJp4mTHkE4W6broH8rznT1ypvn5orQ6YcGn
-
-branches:
-  only:
-    - master
-    - v0
-
-init:
-  - git config --global core.autocrlf true
-
-install:
-  - ps: |
-      Install-PackageProvider -Name NuGet -MinimumVersion 2.8.5.201 -Force | Out-Null
-      Install-Module Pester -MinimumVersion 5.0.0 -MaximumVersion 5.99.99 -Scope CurrentUser -Force | Out-Null
-      "Git version: $(git.exe --version)"
-      "PSVersion:   $($PSVersionTable.PSVersion), build: $($PSVersionTable.BuildVersion), clr version: $($PSVersionTable.ClrVersion)"
-      "Host name:   $($Host.Name)"
-
-build: false
-
-before_test:
-  - ps: Set-PSRepository -Name PSGallery -InstallationPolicy Trusted
-  - ps: Install-Module Coveralls -MinimumVersion 1.0.5 -Scope CurrentUser
-  - ps: Import-Module Coveralls
-
-test_script:
-  - ps: |
-      $testResultsFile = Join-Path $Env:APPVEYOR_BUILD_FOLDER TestResults.xml
-
-      Import-Module Pester -PassThru
-
-      $configuration = [PesterConfiguration]::Default
-      $configuration.Run.Path = "$Env:APPVEYOR_BUILD_FOLDER\test"
-      $configuration.Run.PassThru = $true
-      $configuration.Output.Verbosity = "Detailed"
-      $configuration.TestResult.Enabled = $true
-      $configuration.TestResult.OutputFormat = "NUnit2.5"
-      $configuration.TestResult.OutputPath = $testResultsFile
-      $configuration.CodeCoverage.Enabled = $true
-      $configuration.CodeCoverage.Path = (gci .\src\* -include *.ps1,*.psm1)
-
-      $res = Invoke-Pester -Configuration $configuration -ErrorAction SilentlyContinue
-      if (Test-Path $testResultsFile) {
-          (New-Object 'System.Net.WebClient').UploadFile("https://ci.appveyor.com/api/testresults/nunit/$($env:APPVEYOR_JOB_ID)", $testResultsFile)
-      }
-      if (!$res -or ($res.FailedCount -gt 0)) {
-          # Terminate the script to fail the build
-          $Error | Format-List * -Force
-          exit 1;
-      }
-      $ErrorActionPreference = 'Stop'
-      if (!(Test-Path Env:CA_KEY)) {
-          Write-Host 'CA_KEY not set! (Expected on PR builds.)'
-          return;
-      }
-      Write-Host 'Skipping coverage; anyone know how to fix?'
-      Write-Host '"Please provide pester results with code coverage using the -CodeCoverage parameter"'
-      # $coverageResult = Format-Coverage -PesterResults $res -CoverallsApiToken $ENV:CA_KEY -BranchName $ENV:APPVEYOR_REPO_BRANCH
-      # Publish-Coverage -Coverage $coverageResult
diff --git a/test/DefaultPrompt.Tests.ps1 b/test/DefaultPrompt.Tests.ps1
index d7f2ab647..9344455d5 100644
--- a/test/DefaultPrompt.Tests.ps1
+++ b/test/DefaultPrompt.Tests.ps1
@@ -540,7 +540,7 @@ M test/Baz.Tests.ps1
                     $title | Should -match '^Windows PowerShell|:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe$'
                 }
                 else {
-                    $title | Should -match '^(Windows )?PowerShell'
+                    $title | Should -match '^(Administrator: )?(Windows )?PowerShell'
                 }
             }
         }
diff --git a/test/GitProxyFunctionExpansion.Tests.ps1 b/test/GitProxyFunctionExpansion.Tests.ps1
index 9ef606db7..9b253b17c 100644
--- a/test/GitProxyFunctionExpansion.Tests.ps1
+++ b/test/GitProxyFunctionExpansion.Tests.ps1
@@ -28,34 +28,34 @@ Describe 'Proxy Function Expansion Tests' {
             }
         }
         It 'Expands a proxy function with parameters' {
-            function script:Invoke-GitFunction { git checkout $args }
+            function global:Invoke-GitFunction { git checkout $args }
             $result = & $module Expand-GitProxyFunction 'Invoke-GitFunction -b newbranch'
             $result | Should -Be 'git checkout -b newbranch'
             $result | Should -Be (& $module Expand-GitProxyFunction 'igf -b newbranch')
         }
         It 'Expands a multiline proxy function' {
-            function script:Invoke-GitFunction { git checkout $args }
+            function global:Invoke-GitFunction { git checkout $args }
             $result = & $module Expand-GitProxyFunction "Invoke-GitFunction ```r`n-b ```r`nnewbranch"
             $result | Should -Be 'git checkout -b newbranch'
             $result | Should -Be (& $module Expand-GitProxyFunction "igf ```r`n-b ```r`nnewbranch")
         }
         It 'Does not expand the proxy function name if there is no preceding whitespace before backtick newlines' {
-            function script:Invoke-GitFunction { git checkout $args }
+            function global:Invoke-GitFunction { git checkout $args }
             & $module Expand-GitProxyFunction "Invoke-GitFunction```r`n-b```r`nnewbranch" | Should -Be "Invoke-GitFunction```r`n-b```r`nnewbranch"
             & $module Expand-GitProxyFunction "igf```r`n-b```r`nnewbranch" | Should -Be "igf```r`n-b```r`nnewbranch"
         }
         It 'Does not expand the proxy function name if there is no preceding non-newline whitespace before any backtick newlines' {
-            function script:Invoke-GitFunction { git checkout $args }
+            function global:Invoke-GitFunction { git checkout $args }
             & $module Expand-GitProxyFunction "Invoke-GitFunction ```r`n-b```r`nnewbranch" | Should -Be "Invoke-GitFunction ```r`n-b```r`nnewbranch"
             & $module Expand-GitProxyFunction "igf ```r`n-b```r`nnewbranch" | Should -Be "igf ```r`n-b```r`nnewbranch"
         }
         It 'Does not expand the proxy function name if the preceding whitespace before backtick newlines are newlines' {
-            function script:Invoke-GitFunction { git checkout $args }
+            function global:Invoke-GitFunction { git checkout $args }
             & $module Expand-GitProxyFunction "Invoke-GitFunction`r`n```r`n-b`r`n```r`nnewbranch" | Should -Be "Invoke-GitFunction`r`n```r`n-b`r`n```r`nnewbranch"
             & $module Expand-GitProxyFunction "igf`r`n```r`n-b`r`n```r`nnewbranch" | Should -Be "igf`r`n```r`n-b`r`n```r`nnewbranch"
         }
         It 'Does not expand the proxy function if there is no trailing space' {
-            function script:Invoke-GitFunction { git checkout $args }
+            function global:Invoke-GitFunction { git checkout $args }
             & $module Expand-GitProxyFunction 'Invoke-GitFunction' | Should -Be 'Invoke-GitFunction'
             & $module Expand-GitProxyFunction 'igf' | Should -Be 'igf'
         }
@@ -85,7 +85,7 @@ Describe 'Proxy Function Expansion Tests' {
             }
         }
         It 'Expands a single line function' {
-            function script:Invoke-GitFunction {
+            function global:Invoke-GitFunction {
                 git checkout $args
             }
             $result = & $module Expand-GitProxyFunction 'Invoke-GitFunction '
@@ -93,7 +93,7 @@ Describe 'Proxy Function Expansion Tests' {
             $result | Should -Be (& $module Expand-GitProxyFunction 'igf ' )
         }
         It 'Expands a single line function with short parameter' {
-            function script:Invoke-GitFunction {
+            function global:Invoke-GitFunction {
                 git checkout -b $args
             }
             $result = & $module Expand-GitProxyFunction 'Invoke-GitFunction '
@@ -101,7 +101,7 @@ Describe 'Proxy Function Expansion Tests' {
             $result | Should -Be (& $module Expand-GitProxyFunction 'igf ' )
         }
         It 'Expands a single line function with long parameter' {
-            function script:Invoke-GitFunction {
+            function global:Invoke-GitFunction {
                 git checkout --detach $args
             }
             $result = & $module Expand-GitProxyFunction 'Invoke-GitFunction '
@@ -109,7 +109,7 @@ Describe 'Proxy Function Expansion Tests' {
             $result | Should -Be (& $module Expand-GitProxyFunction 'igf ' )
         }
         It 'Expands a single line with piped function suffix' {
-            function script:Invoke-GitFunction {
+            function global:Invoke-GitFunction {
                 git checkout --detach $args | Write-Host
             }
             $result = & $module Expand-GitProxyFunction 'Invoke-GitFunction '
@@ -117,7 +117,7 @@ Describe 'Proxy Function Expansion Tests' {
             $result | Should -Be (& $module Expand-GitProxyFunction 'igf ' )
         }
         It 'Expands the first line in function' {
-            function script:Invoke-GitFunction {
+            function global:Invoke-GitFunction {
                 git checkout $args
                 $a = 5
                 Write-Host $null
@@ -127,7 +127,7 @@ Describe 'Proxy Function Expansion Tests' {
             $result | Should -Be (& $module Expand-GitProxyFunction 'igf ' )
         }
         It 'Expands the middle line in function' {
-            function script:Invoke-GitFunction {
+            function global:Invoke-GitFunction {
                 $a = 5
                 git checkout $args
                 Write-Host $null
@@ -137,7 +137,7 @@ Describe 'Proxy Function Expansion Tests' {
             $result | Should -Be (& $module Expand-GitProxyFunction 'igf ' )
         }
         It 'Expands the last line in function' {
-            function script:Invoke-GitFunction {
+            function global:Invoke-GitFunction {
                 $a = 5
                 Write-Host $null
                 git checkout $args
@@ -147,7 +147,7 @@ Describe 'Proxy Function Expansion Tests' {
             $result | Should -Be (& $module Expand-GitProxyFunction 'igf ' )
         }
         It 'Expands semicolon delimited functions' {
-            function script:Invoke-GitFunction {
+            function global:Invoke-GitFunction {
                 $a = 5; git checkout $args; Write-Host $null;
             }
             $result = & $module Expand-GitProxyFunction 'Invoke-GitFunction '
@@ -155,7 +155,7 @@ Describe 'Proxy Function Expansion Tests' {
             $result | Should -Be (& $module Expand-GitProxyFunction 'igf ' )
         }
         It 'Expands mixed semicolon delimited and newline functions' {
-            function script:Invoke-GitFunction {
+            function global:Invoke-GitFunction {
                 $a = 5; Write-Host $null
                 git checkout $args; Write-Host $null;
             }
@@ -164,7 +164,7 @@ Describe 'Proxy Function Expansion Tests' {
             $result | Should -Be (& $module Expand-GitProxyFunction 'igf ' )
         }
         It 'Expands mixed semicolon delimited and newline multiline functions' {
-            function script:Invoke-GitFunction {
+            function global:Invoke-GitFunction {
                 $a = 5; Write-Host $null
                 git `
                 checkout `
@@ -175,7 +175,7 @@ Describe 'Proxy Function Expansion Tests' {
             $result | Should -Be (& $module Expand-GitProxyFunction 'igf ' )
         }
         It 'Expands simultaneously semicolon delimited and newline functions' {
-            function script:Invoke-GitFunction {
+            function global:Invoke-GitFunction {
                 $a = 5;
                 Write-Host $null;
                 git checkout $args;
@@ -186,7 +186,7 @@ Describe 'Proxy Function Expansion Tests' {
             $result | Should -Be (& $module Expand-GitProxyFunction 'igf ' )
         }
         It 'Expands multiline function' {
-            function script:Invoke-GitFunction {
+            function global:Invoke-GitFunction {
                 git `
                 checkout `
                 $args
@@ -196,7 +196,7 @@ Describe 'Proxy Function Expansion Tests' {
             $result | Should -Be (& $module Expand-GitProxyFunction 'igf ' )
         }
         It 'Expands multiline function that terminates with semicolon on new line' {
-            function script:Invoke-GitFunction {
+            function global:Invoke-GitFunction {
                 git `
                 checkout `
                 $args `
@@ -207,7 +207,7 @@ Describe 'Proxy Function Expansion Tests' {
             $result | Should -Be (& $module Expand-GitProxyFunction 'igf ' )
         }
         It 'Expands multiline function with short parameter' {
-            function script:Invoke-GitFunction {
+            function global:Invoke-GitFunction {
                 git `
                 checkout `
                 -b `
@@ -218,7 +218,7 @@ Describe 'Proxy Function Expansion Tests' {
             $result | Should -Be (& $module Expand-GitProxyFunction 'igf ' )
         }
         It 'Expands multiline function with long parameter' {
-            function script:Invoke-GitFunction {
+            function global:Invoke-GitFunction {
                 git `
                 checkout `
                 --detach `
@@ -229,21 +229,21 @@ Describe 'Proxy Function Expansion Tests' {
             $result | Should -Be (& $module Expand-GitProxyFunction 'igf ' )
         }
         It 'Does not expand a single line with piped function prefix' {
-            function script:Invoke-GitFunction {
+            function global:Invoke-GitFunction {
                 "master" | git checkout --detach $args
             }
             & $module Expand-GitProxyFunction 'Invoke-GitFunction ' | Should -Be 'Invoke-GitFunction '
             & $module Expand-GitProxyFunction 'igf ' | Should -Be 'igf '
         }
         It 'Does not expand function if $args is not present' {
-            function script:Invoke-GitFunction {
+            function global:Invoke-GitFunction {
                 git checkout
             }
             & $module Expand-GitProxyFunction 'Invoke-GitFunction ' | Should -Be 'Invoke-GitFunction '
             & $module Expand-GitProxyFunction 'igf ' | Should -Be 'igf '
         }
         It 'Does not expand function if $args is not attached to the git function' {
-            function script:Invoke-GitFunction {
+            function global:Invoke-GitFunction {
                 $a = 5
                 git checkout
                 Write-Host $args
@@ -252,7 +252,7 @@ Describe 'Proxy Function Expansion Tests' {
             & $module Expand-GitProxyFunction 'igf ' | Should -Be 'igf '
         }
         It 'Does not expand multiline function if $args is not attached to the git function' {
-            function script:Invoke-GitFunction {
+            function global:Invoke-GitFunction {
                 $a = 5
                 git `
                 checkout
@@ -262,7 +262,7 @@ Describe 'Proxy Function Expansion Tests' {
             & $module Expand-GitProxyFunction 'igf ' | Should -Be 'igf '
         }
         It 'Does not expand multiline function backtick newlines are not preceded with whitespace' {
-            function script:Invoke-GitFunction {
+            function global:Invoke-GitFunction {
                 $a = 5
                 git`
                 checkout`
@@ -278,7 +278,7 @@ Describe 'Proxy Function Expansion Tests' {
             if(Test-Path -Path Function:\Invoke-GitFunction) {
                 Rename-Item -Path Function:\Invoke-GitFunction -NewName Invoke-GitFunctionBackup
             }
-            function script:Invoke-GitFunction { git checkout $args }
+            function global:Invoke-GitFunction { git checkout $args }
         }
         AfterEach {
             if(Test-Path -Path Function:\Invoke-GitFunction) {
@@ -320,14 +320,14 @@ Describe 'Proxy Function Expansion Tests' {
             }
         }
         It 'Tab completes without subcommands' {
-            function script:Invoke-GitFunction { git whatever $args }
+            function global:Invoke-GitFunction { git whatever $args }
             $functionText = & $module Expand-GitProxyFunction 'Invoke-GitFunction '
             $result = & $module GitTabExpansionInternal $functionText
 
             $result | Should -Be @()
         }
         It 'Tab completes bisect subcommands' {
-            function script:Invoke-GitFunction { git bisect $args }
+            function global:Invoke-GitFunction { git bisect $args }
             $functionText = & $module Expand-GitProxyFunction 'Invoke-GitFunction '
             $result = & $module GitTabExpansionInternal $functionText
 
@@ -342,7 +342,7 @@ Describe 'Proxy Function Expansion Tests' {
             $result2 -contains 'skip' | Should -Be $true
         }
         It 'Tab completes remote subcommands' {
-            function script:Invoke-GitFunction { git remote $args }
+            function global:Invoke-GitFunction { git remote $args }
             $functionText = & $module Expand-GitProxyFunction 'Invoke-GitFunction '
             $result = & $module GitTabExpansionInternal $functionText