diff --git a/.travis.yml b/.travis.yml
index f21fdf45..ee2a209a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,26 +9,6 @@ matrix:
       dist: trusty
       sudo: required
       env: RID=linux-x64
-    - os: linux
-      dist: trusty
-      sudo: required
-      env: RID=ubuntu.18.04-x64
-    - os: linux
-      dist: trusty
-      sudo: required
-      env: RID=rhel-x64
-    - os: linux
-      dist: trusty
-      sudo: required
-      env: RID=fedora-x64
-    - os: linux
-      dist: trusty
-      sudo: required
-      env: RID=debian.9-x64
-    - os: linux
-      dist: trusty
-      sudo: required
-      env: RID=alpine-x64
     - os: osx
       env: RID=osx
 
@@ -45,6 +25,6 @@ before_install:
 
 install: true
 
-script: if [[ $RID == "osx" ]]; then ./build.libgit2.sh ; else ./dockerbuild.sh ; fi
+script: ./build.libgit2.sh
 
 after_success: ./uploadbinaries.sh
diff --git a/UpdateLibgit2ToSha.ps1 b/UpdateLibgit2ToSha.ps1
index 92e2316a..ace577e4 100644
--- a/UpdateLibgit2ToSha.ps1
+++ b/UpdateLibgit2ToSha.ps1
@@ -1,6 +1,6 @@
 <#
 .SYNOPSIS
-    Updates the libgit2 submodule to the specified commit and updates libgit2_hash.txt and NativeBinaries.props with the new hash value.
+    Updates the libgit2 submodule to the specified commit and updates libgit2_hash.txt and NativeBinaries.NoTLS.props with the new hash value.
 .PARAMETER sha
     Desired libgit2 version. This is run through `git rev-parse`, so branch names are okay too.
 #>
@@ -101,7 +101,7 @@ Push-Location $libgit2Directory
 </Project>
 "@
 
-    Set-Content -Encoding UTF8 (Join-Path $projectDirectory "nuget.package\build\LibGit2Sharp.NativeBinaries.props") $buildProperties
+    Set-Content -Encoding UTF8 (Join-Path $projectDirectory "nuget.package\build\LibGit2Sharp.NativeBinaries.NoTLS.props") $buildProperties
 
     $net461BuildProperties = @"
 <Project>
@@ -164,7 +164,7 @@ Push-Location $libgit2Directory
 </Project>
 "@
 
-    Set-Content -Encoding UTF8 (Join-Path $projectDirectory "nuget.package\build\net461\LibGit2Sharp.NativeBinaries.props") $net461BuildProperties
+    Set-Content -Encoding UTF8 (Join-Path $projectDirectory "nuget.package\build\net461\LibGit2Sharp.NativeBinaries.NoTLS.props") $net461BuildProperties
 
     $dllConfig = @"
 <configuration>
diff --git a/build.libgit2.sh b/build.libgit2.sh
index 80c6950e..1ee3e1d4 100755
--- a/build.libgit2.sh
+++ b/build.libgit2.sh
@@ -15,6 +15,9 @@ cmake -DCMAKE_BUILD_TYPE:STRING=Release \
       -DENABLE_TRACE=ON \
       -DLIBGIT2_FILENAME=git2-$SHORTSHA \
       -DCMAKE_OSX_ARCHITECTURES="i386;x86_64" \
+      -DUSE_HTTPS=OFF \
+      -DCURL=OFF \
+      -DUSE_BUNDLED_ZLIB=ON \
       ..
 cmake --build .
 
diff --git a/download.build.artifacts.and.package.ps1 b/download.build.artifacts.and.package.ps1
index fc32b982..c5e6c81a 100644
--- a/download.build.artifacts.and.package.ps1
+++ b/download.build.artifacts.and.package.ps1
@@ -149,7 +149,7 @@ Push-location "$($package.FullName).ext"
 Remove-Item -Path ".\_rels\" -Recurse
 Remove-Item -Path ".\package\" -Recurse
 Remove-Item -Path '.\`[Content_Types`].xml'
-& "$root/Nuget.exe" pack "LibGit2Sharp.NativeBinaries.nuspec" -OutputDirectory "$path" -NoPackageAnalysis -Verbosity "detailed"
+& "$root/Nuget.exe" pack "LibGit2Sharp.NativeBinaries.NoTLS.nuspec" -OutputDirectory "$path" -NoPackageAnalysis -Verbosity "detailed"
 
 $newPackage = Get-ChildItem -Path $path -Filter "*.nupkg"
 Pop-Location
diff --git a/libgit2 b/libgit2
index f23dc5b2..58519816 160000
--- a/libgit2
+++ b/libgit2
@@ -1 +1 @@
-Subproject commit f23dc5b29f1394928a940d7ec447f4bfd53dad1f
+Subproject commit 585198165bdc4557305eed56c9e31b9655c13a02
diff --git a/nuget.package/NativeBinaries.nuspec b/nuget.package/NativeBinaries.nuspec
index 360bfb72..ada5a6f0 100644
--- a/nuget.package/NativeBinaries.nuspec
+++ b/nuget.package/NativeBinaries.nuspec
@@ -1,14 +1,14 @@
 <?xml version="1.0" encoding="utf-8"?>
 <package xmlns="http://schemas.microsoft.com/packaging/2012/06/nuspec.xsd">
   <metadata>
-    <id>LibGit2Sharp.NativeBinaries</id>
+    <id>LibGit2Sharp.NativeBinaries.NoTLS</id>
     <version>1.0.155</version>
     <authors>LibGit2Sharp contributors</authors>
-    <owners>nulltoken</owners>
+    <owners>ethomson</owners>
     <licenseUrl>https://raw.githubusercontent.com/libgit2/libgit2/master/COPYING</licenseUrl>
     <projectUrl>https://github.com/libgit2/libgit2sharp.nativebinaries</projectUrl>
     <iconUrl>https://raw.githubusercontent.com/libgit2/libgit2sharp/master/square-logo.png</iconUrl>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
-    <description>Native binaries for LibGit2Sharp</description>
+    <description>Native binaries for LibGit2Sharp: Experimental Builtin HTTPS Support</description>
   </metadata>
 </package>
diff --git a/nuget.package/build/LibGit2Sharp.NativeBinaries.props b/nuget.package/build/LibGit2Sharp.NativeBinaries.NoTLS.props
similarity index 66%
rename from nuget.package/build/LibGit2Sharp.NativeBinaries.props
rename to nuget.package/build/LibGit2Sharp.NativeBinaries.NoTLS.props
index 0a41f45d..4ebc0d82 100644
--- a/nuget.package/build/LibGit2Sharp.NativeBinaries.props
+++ b/nuget.package/build/LibGit2Sharp.NativeBinaries.NoTLS.props
@@ -2,7 +2,7 @@
   <PropertyGroup>
     <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
     <libgit2_propsfile>$(MSBuildThisFileFullPath)</libgit2_propsfile>
-    <libgit2_hash>f23dc5b29f1394928a940d7ec447f4bfd53dad1f</libgit2_hash>
-    <libgit2_filename>git2-f23dc5b</libgit2_filename>
+    <libgit2_hash>585198165bdc4557305eed56c9e31b9655c13a02</libgit2_hash>
+    <libgit2_filename>git2-5851981</libgit2_filename>
   </PropertyGroup>
 </Project>
diff --git a/nuget.package/build/net461/LibGit2Sharp.NativeBinaries.props b/nuget.package/build/net461/LibGit2Sharp.NativeBinaries.NoTLS.props
similarity index 62%
rename from nuget.package/build/net461/LibGit2Sharp.NativeBinaries.props
rename to nuget.package/build/net461/LibGit2Sharp.NativeBinaries.NoTLS.props
index 7d3731f6..38bb34ca 100644
--- a/nuget.package/build/net461/LibGit2Sharp.NativeBinaries.props
+++ b/nuget.package/build/net461/LibGit2Sharp.NativeBinaries.NoTLS.props
@@ -2,52 +2,52 @@
   <PropertyGroup>
     <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
     <libgit2_propsfile>$(MSBuildThisFileFullPath)</libgit2_propsfile>
-    <libgit2_hash>f23dc5b29f1394928a940d7ec447f4bfd53dad1f</libgit2_hash>
-    <libgit2_filename>git2-f23dc5b</libgit2_filename>
+    <libgit2_hash>585198165bdc4557305eed56c9e31b9655c13a02</libgit2_hash>
+    <libgit2_filename>git2-5851981</libgit2_filename>
   </PropertyGroup>
   <ItemGroup>
-    <ContentWithTargetPath Condition="Exists('$(MSBuildThisFileDirectory)\..\..\runtimes\win-x64\native\git2-f23dc5b.dll')" Include="$(MSBuildThisFileDirectory)\..\..\runtimes\win-x64\native\git2-f23dc5b.dll">
-      <TargetPath>lib\win32\x64\git2-f23dc5b.dll</TargetPath>
+    <ContentWithTargetPath Condition="Exists('$(MSBuildThisFileDirectory)\..\..\runtimes\win-x64\native\git2-5851981.dll')" Include="$(MSBuildThisFileDirectory)\..\..\runtimes\win-x64\native\git2-5851981.dll">
+      <TargetPath>lib\win32\x64\git2-5851981.dll</TargetPath>
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </ContentWithTargetPath>
-    <ContentWithTargetPath Condition="Exists('$(MSBuildThisFileDirectory)\..\..\runtimes\win-x64\native\git2-f23dc5b.pdb')" Include="$(MSBuildThisFileDirectory)\..\..\runtimes\win-x64\native\git2-f23dc5b.pdb">
-      <TargetPath>lib\win32\x64\git2-f23dc5b.pdb</TargetPath>
+    <ContentWithTargetPath Condition="Exists('$(MSBuildThisFileDirectory)\..\..\runtimes\win-x64\native\git2-5851981.pdb')" Include="$(MSBuildThisFileDirectory)\..\..\runtimes\win-x64\native\git2-5851981.pdb">
+      <TargetPath>lib\win32\x64\git2-5851981.pdb</TargetPath>
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </ContentWithTargetPath>
-    <ContentWithTargetPath Condition="Exists('$(MSBuildThisFileDirectory)\..\..\runtimes\win-x86\native\git2-f23dc5b.dll')" Include="$(MSBuildThisFileDirectory)\..\..\runtimes\win-x86\native\git2-f23dc5b.dll">
-      <TargetPath>lib\win32\x86\git2-f23dc5b.dll</TargetPath>
+    <ContentWithTargetPath Condition="Exists('$(MSBuildThisFileDirectory)\..\..\runtimes\win-x86\native\git2-5851981.dll')" Include="$(MSBuildThisFileDirectory)\..\..\runtimes\win-x86\native\git2-5851981.dll">
+      <TargetPath>lib\win32\x86\git2-5851981.dll</TargetPath>
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </ContentWithTargetPath>
-    <ContentWithTargetPath Condition="Exists('$(MSBuildThisFileDirectory)\..\..\runtimes\win-x86\native\git2-f23dc5b.pdb')" Include="$(MSBuildThisFileDirectory)\..\..\runtimes\win-x86\native\git2-f23dc5b.pdb">
-      <TargetPath>lib\win32\x86\git2-f23dc5b.pdb</TargetPath>
+    <ContentWithTargetPath Condition="Exists('$(MSBuildThisFileDirectory)\..\..\runtimes\win-x86\native\git2-5851981.pdb')" Include="$(MSBuildThisFileDirectory)\..\..\runtimes\win-x86\native\git2-5851981.pdb">
+      <TargetPath>lib\win32\x86\git2-5851981.pdb</TargetPath>
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </ContentWithTargetPath>
-    <ContentWithTargetPath Condition="Exists('$(MSBuildThisFileDirectory)\..\..\runtimes\osx\native\libgit2-f23dc5b.dylib')" Include="$(MSBuildThisFileDirectory)\..\..\runtimes\osx\native\libgit2-f23dc5b.dylib">
-      <TargetPath>lib\osx\libgit2-f23dc5b.dylib</TargetPath>
+    <ContentWithTargetPath Condition="Exists('$(MSBuildThisFileDirectory)\..\..\runtimes\osx\native\libgit2-5851981.dylib')" Include="$(MSBuildThisFileDirectory)\..\..\runtimes\osx\native\libgit2-5851981.dylib">
+      <TargetPath>lib\osx\libgit2-5851981.dylib</TargetPath>
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </ContentWithTargetPath>
-    <ContentWithTargetPath Condition="Exists('$(MSBuildThisFileDirectory)\..\..\runtimes\linux-x64\native\libgit2-f23dc5b.so')" Include="$(MSBuildThisFileDirectory)\..\..\runtimes\linux-x64\native\libgit2-f23dc5b.so">
-      <TargetPath>lib\linux-x64\libgit2-f23dc5b.so</TargetPath>
+    <ContentWithTargetPath Condition="Exists('$(MSBuildThisFileDirectory)\..\..\runtimes\linux-x64\native\libgit2-5851981.so')" Include="$(MSBuildThisFileDirectory)\..\..\runtimes\linux-x64\native\libgit2-5851981.so">
+      <TargetPath>lib\linux-x64\libgit2-5851981.so</TargetPath>
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </ContentWithTargetPath>
-    <ContentWithTargetPath Condition="Exists('$(MSBuildThisFileDirectory)\..\..\runtimes\ubuntu.18.04-x64\native\libgit2-f23dc5b.so')" Include="$(MSBuildThisFileDirectory)\..\..\runtimes\ubuntu.18.04-x64\native\libgit2-f23dc5b.so">
-      <TargetPath>lib\ubuntu.18.04-x64\libgit2-f23dc5b.so</TargetPath>
+    <ContentWithTargetPath Condition="Exists('$(MSBuildThisFileDirectory)\..\..\runtimes\ubuntu.18.04-x64\native\libgit2-5851981.so')" Include="$(MSBuildThisFileDirectory)\..\..\runtimes\ubuntu.18.04-x64\native\libgit2-5851981.so">
+      <TargetPath>lib\ubuntu.18.04-x64\libgit2-5851981.so</TargetPath>
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </ContentWithTargetPath>
-    <ContentWithTargetPath Condition="Exists('$(MSBuildThisFileDirectory)\..\..\runtimes\rhel-x64\native\libgit2-f23dc5b.so')" Include="$(MSBuildThisFileDirectory)\..\..\runtimes\rhel-x64\native\libgit2-f23dc5b.so">
-      <TargetPath>lib\rhel-x64\libgit2-f23dc5b.so</TargetPath>
+    <ContentWithTargetPath Condition="Exists('$(MSBuildThisFileDirectory)\..\..\runtimes\rhel-x64\native\libgit2-5851981.so')" Include="$(MSBuildThisFileDirectory)\..\..\runtimes\rhel-x64\native\libgit2-5851981.so">
+      <TargetPath>lib\rhel-x64\libgit2-5851981.so</TargetPath>
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </ContentWithTargetPath>
-    <ContentWithTargetPath Condition="Exists('$(MSBuildThisFileDirectory)\..\..\runtimes\fedora-x64\native\libgit2-f23dc5b.so')" Include="$(MSBuildThisFileDirectory)\..\..\runtimes\fedora-x64\native\libgit2-f23dc5b.so">
-      <TargetPath>lib\fedora-x64\libgit2-f23dc5b.so</TargetPath>
+    <ContentWithTargetPath Condition="Exists('$(MSBuildThisFileDirectory)\..\..\runtimes\fedora-x64\native\libgit2-5851981.so')" Include="$(MSBuildThisFileDirectory)\..\..\runtimes\fedora-x64\native\libgit2-5851981.so">
+      <TargetPath>lib\fedora-x64\libgit2-5851981.so</TargetPath>
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </ContentWithTargetPath>
-    <ContentWithTargetPath Condition="Exists('$(MSBuildThisFileDirectory)\..\..\runtimes\debian.9-x64\native\libgit2-f23dc5b.so')" Include="$(MSBuildThisFileDirectory)\..\..\runtimes\debian.9-x64\native\libgit2-f23dc5b.so">
-      <TargetPath>lib\debian.9-x64\libgit2-f23dc5b.so</TargetPath>
+    <ContentWithTargetPath Condition="Exists('$(MSBuildThisFileDirectory)\..\..\runtimes\debian.9-x64\native\libgit2-5851981.so')" Include="$(MSBuildThisFileDirectory)\..\..\runtimes\debian.9-x64\native\libgit2-5851981.so">
+      <TargetPath>lib\debian.9-x64\libgit2-5851981.so</TargetPath>
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </ContentWithTargetPath>
-    <ContentWithTargetPath Condition="Exists('$(MSBuildThisFileDirectory)\..\..\runtimes\alpine-x64\native\libgit2-f23dc5b.so')" Include="$(MSBuildThisFileDirectory)\..\..\runtimes\alpine-x64\native\libgit2-f23dc5b.so">
-      <TargetPath>lib\alpine-x64\libgit2-f23dc5b.so</TargetPath>
+    <ContentWithTargetPath Condition="Exists('$(MSBuildThisFileDirectory)\..\..\runtimes\alpine-x64\native\libgit2-5851981.so')" Include="$(MSBuildThisFileDirectory)\..\..\runtimes\alpine-x64\native\libgit2-5851981.so">
+      <TargetPath>lib\alpine-x64\libgit2-5851981.so</TargetPath>
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </ContentWithTargetPath>
     <ContentWithTargetPath Include="$(MSBuildThisFileDirectory)\..\..\libgit2\LibGit2Sharp.dll.config">
diff --git a/nuget.package/buildMultiTargeting/LibGit2Sharp.NativeBinaries.NoTLS.props b/nuget.package/buildMultiTargeting/LibGit2Sharp.NativeBinaries.NoTLS.props
new file mode 100644
index 00000000..61bfa638
--- /dev/null
+++ b/nuget.package/buildMultiTargeting/LibGit2Sharp.NativeBinaries.NoTLS.props
@@ -0,0 +1,3 @@
+<Project>
+  <Import Project="..\build\LibGit2Sharp.NativeBinaries.NoTLS.props" />
+</Project>
diff --git a/nuget.package/buildMultiTargeting/LibGit2Sharp.NativeBinaries.props b/nuget.package/buildMultiTargeting/LibGit2Sharp.NativeBinaries.props
deleted file mode 100644
index a3c30204..00000000
--- a/nuget.package/buildMultiTargeting/LibGit2Sharp.NativeBinaries.props
+++ /dev/null
@@ -1,3 +0,0 @@
-<Project>
-  <Import Project="..\build\LibGit2Sharp.NativeBinaries.props" />
-</Project>
\ No newline at end of file
diff --git a/nuget.package/buildMultiTargeting/net461/LibGit2Sharp.NativeBinaries.props b/nuget.package/buildMultiTargeting/net461/LibGit2Sharp.NativeBinaries.NoTLS.props
similarity index 71%
rename from nuget.package/buildMultiTargeting/net461/LibGit2Sharp.NativeBinaries.props
rename to nuget.package/buildMultiTargeting/net461/LibGit2Sharp.NativeBinaries.NoTLS.props
index 707c7024..fee49e2b 100644
--- a/nuget.package/buildMultiTargeting/net461/LibGit2Sharp.NativeBinaries.props
+++ b/nuget.package/buildMultiTargeting/net461/LibGit2Sharp.NativeBinaries.NoTLS.props
@@ -1,3 +1,3 @@
 <Project>
-  <Import Project="..\..\build\net461\LibGit2Sharp.NativeBinaries.props" />
-</Project>
\ No newline at end of file
+  <Import Project="..\..\build\net461\LibGit2Sharp.NativeBinaries.NoTLS.props" />
+</Project>
diff --git a/nuget.package/libgit2/LibGit2Sharp.dll.config b/nuget.package/libgit2/LibGit2Sharp.dll.config
index 15ceddaa..bac1eb75 100644
--- a/nuget.package/libgit2/LibGit2Sharp.dll.config
+++ b/nuget.package/libgit2/LibGit2Sharp.dll.config
@@ -1,4 +1,4 @@
 <configuration>
-    <dllmap os="linux" cpu="x86-64" wordsize="64" dll="git2-f23dc5b" target="lib/linux-x64/libgit2-f23dc5b.so" />
-    <dllmap os="osx" cpu="x86,x86-64" dll="git2-f23dc5b" target="lib/osx/libgit2-f23dc5b.dylib" />
+    <dllmap os="linux" cpu="x86-64" wordsize="64" dll="git2-5851981" target="lib/linux-x64/libgit2-5851981.so" />
+    <dllmap os="osx" cpu="x86,x86-64" dll="git2-5851981" target="lib/osx/libgit2-5851981.dylib" />
 </configuration>
diff --git a/nuget.package/libgit2/libgit2_hash.txt b/nuget.package/libgit2/libgit2_hash.txt
index 047447e9..8bf0208f 100644
--- a/nuget.package/libgit2/libgit2_hash.txt
+++ b/nuget.package/libgit2/libgit2_hash.txt
@@ -1 +1 @@
-f23dc5b29f1394928a940d7ec447f4bfd53dad1f
+585198165bdc4557305eed56c9e31b9655c13a02