You can download INDIGO distributions for Linux, macOS and Windows here.
Binary distribution of INDIGO Infrastructure or INDIGO Control Panel can be installed on Linux either automatically by apt-get or manually by dpkg.
To setup automatic installation and subsequent updates, you need to add our repository URL to APT sources list. To do this from command line execute:
$ echo "deb [trusted=yes] https://indigo-astronomy.github.io/indigo_ppa/ppa indigo main" | sudo tee /etc/apt/sources.list.d/indigo.list
and execute the following commands
$ sudo apt-get update
$ sudo apt-get install indigo
$ sudo apt-get install ain-imager
$ sudo apt-get install indigo-control-panel
To do it from e.g. Synaptic package manager, execute it, go to Settings > Repositories, click new and fill URI, distribution and sections with the following text:

Once done, click Reload and search for indigo packages.
Release notes are available in CHANGELOG.md
To install INDIGO 3 manually, download one of the following packages for your operating system and install it with a command like this:
$ sudo apt-get install ~/Downloads/indigo3-3.0-1-YYY.deb
One can also install INDIGO 3 Control Panel, a GUI tool for managing and configuring INDIGO 3 Infrastructure:
To install INDIGO 3 Control Panel, you need to install indigo3-3.0-1 infrastructure first.
Ain is an INDIGO imager application for use with INDIGO 3:
To install Ain INDIGO 3 Imager, you need to install indigo3-3.0-1 infrastructure first.
Relase notes are available in CHANGELOG.md
To install INDIGO manually, download one of the following packages for your operating system and install it with a command like this:
$ sudo apt-get install ~/Downloads/indigo-2.0-XX-YYY.deb
One can also install INDIGO Control Panel, a GUI tool for managing and confiuring INDIGO Infrastructure:
To install INDIGO Control Panel, you need to install indigo-2.0-XXX infrastructure first.
Note: Some features of Ain version 2.6-0 require INDIGO 2.0-336 and above to work
Ain is an INDIGO imager application:
To install Ain INDIGO Imager, you need to install indigo-2.0-XXX infrastructure first.
To install INDIGO on Apple computer (macOS 10.10 or later), download the latest INDIGO server here
and drag & drop INDIGO Server application to Applications folder:

For more INDIGO compatible applications including INDIGO Control Panel and INDIGO Dashboard for macOS visit Cloudmakers macOS software page.
INDIGO Control Panel is a GUI tool for managing and confiuring INDIGO Infrastructure:
Note:Some features of Ain version 2.6-0 require INDIGO 2.0-336 and above to work
Ain is an INDIGO imager application:
This is INDIGO Client software development kit. Windows Developers can use it to develop their own INDIGO applications:
Make sure that you have all prerequisites installed. On Ubuntu / Debian / Raspian use:
$ sudo apt-get install build-essential autoconf autotools-dev libtool cmake libudev-dev libavahi-compat-libdnssd-dev libusb-1.0-0-dev fxload libcurl4-gnutls-dev libgphoto2-dev libz-dev git curl
It is advised to remove libraw1394-dev as the build may fail if it is installed
$ sudo apt-get remove libraw1394-dev
On macOS install XCode and download and build autoconf, automake and libtool (use tools/cltools.sh script).
If you're ready, get the code and built it
$ git clone https://github.com/indigo-astronomy/indigo.git
$ cd indigo
$ make all
$ build/bin/indigo_server indigo_ccd_asi [other drivers]
and connect from INDIGO Control Panel, any INDI client or WEB browser to port 7624...