Additional documentation can be found at the [Marlin Home Page](https://marlinfw.org/).
Please test this firmware and let us know if it misbehaves in any way. Volunteers are standing by!
## Marlin 2.0
## Marlin 2.1
Marlin 2.0 takes this popular RepRap firmware to the next level by adding support for much faster 32-bit and ARM-based boards while improving support for 8-bit AVR boards. Read about Marlin's decision to use a "Hardware Abstraction Layer" below.
Marlin 2.1 continues to support both 32-bit ARM and 8-bit AVR boards while adding support for up to 9 coordinated axes and to up to 8 extruders.
Download earlier versions of Marlin on the [Releases page](https://github.com/MarlinFirmware/Marlin/releases).
@ -25,9 +25,9 @@ Download earlier versions of Marlin on the [Releases page](https://github.com/Ma
Before building Marlin you'll need to configure it for your specific hardware. Your vendor should have already provided source code with configurations for the installed firmware, but if you ever decide to upgrade you'll need updated configuration files. Marlin users have contributed dozens of tested example configurations to get you started. Visit the [MarlinFirmware/Configurations](https://github.com/MarlinFirmware/Configurations) repository to find the right configuration for your hardware.
## Building Marlin 2.0
## Building Marlin 2.1
To build Marlin 2.0 you'll need [Arduino IDE 1.8.8 or newer](https://www.arduino.cc/en/main/software) or [PlatformIO](http://docs.platformio.org/en/latest/ide.html#platformio-ide). Detailed build and install instructions are posted at:
To build Marlin 2.1 you'll need [Arduino IDE 1.8.8 or newer](https://www.arduino.cc/en/main/software) or [PlatformIO](http://docs.platformio.org/en/latest/ide.html#platformio-ide). Detailed build and install instructions are posted at: