The .NET Core SDK is being updated to version 1.1.0 in Visual Studio 2017 15.3. The changes, which are listed in the [SDK release notes](https://github.com/dotnet/cli/releases/tag/v1.1.0-preview1-005077) are in support of Visual Studio 2017. Previously released Runtime-only installers and binaries can be found on the .NET Core [1.0.5](1.0.5-download.md) and [1.1.2](1.1.2-download.md) installer pages.
[Checksums](https://dotnetcli.blob.core.windows.net/dotnet/checksums/sdk-1.1.0-preview1-005077-SHA.txt) are available to verify all downloads.
When using binary archives to install, we recommend the contents be extracted to `/opt/dotnet` and a symbolic link created for `dotnet`. If an earlier release of .NET Core is already installed, the directory and symbolic link may already exist. Ubuntu and Mint users should follow the instructions in the Ubuntu Installation section below.
```bash
sudo mkdir -p /opt/dotnet
sudo tar zxf [tar.gz filename] -C /opt/dotnet
sudo ln -s /opt/dotnet/dotnet /usr/local/bin
```
## Ubuntu installation
### Add the dotnet apt-get feed
The first step is to establish the source feed for the package manager. This is only needed if you have not previously set up the source or if you are installing for the first time.