As kens said, and to expand, Xilinx's Vivado doesn't support the Spartan 6, however they _do_ still fully support the Spartan 6 and continue to produce new chip

As kens said, and to expand, Xilinx's Vivado doesn't support the Spartan 6, however they _do_ still fully support the Spartan 6 and continue to produce new chips. To support this, they've released a Virtualbox compatible image which runs Oracle Linux with ISE configured specifically to program Spartan 6 FPGAs.[1] [1]: https://www.xilinx.com/support/download/index.html/content/xilinx/en/downloadNav/design-tools.html https://www.xilinx.com/support/download/index.html/content/x...