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.

20170826

• Cbc version 2.9.9
• Ipopt version 3.12.8
• Bonmin, version 1.8.6
• Couenne version 0.5.6
• ASL version 20170722

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

20150128

• Cbc version 2.9.0
• Ipopt version 3.12.0
• Bonmin, version 1.8.0
• Couenne version 0.5.1
• ASL version 20150101

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

20140620

• New: Bonmin, an open-source solver for general mixed integer nonlinear programming (MINLP) problems, version 1.7.4
• Cbc version 2.8.8
• Ipopt version 3.11.8

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