20191215

• Cbc version 2.10.3 (source)
• Ipopt version 3.12.13 (source)
• Bonmin version 1.8.7 (source)
• Couenne version 0.5.7 (source)
• ASL version 20161228 (source)

All binaries are available for download from the AMPL Open-Source Downloads page.