Highlights of the 6.9 release series

• Removed support for Python 3.8
• New Logic-Based Discrete-Steepest Descent Algorithm in GDPOpt
• New solver interfaces:
  • v2: Ongoing solver interface refactor
• ...and of course numerous minor bug fixes and performance enhancements

Changes in this release

• General
  • Remove URL and replace with full citation (#3490)
  • Rename project "pyomo" in setup.py [PEP 625] (#3430)
  • Resolve errors in TeeStream and capture_output (#3497)
• Documentation
  • Update autosummary for Sphinx 8.2.1 (#3492)
  • Resolve errors building documentation PDF (#3495)
• Testing
  • conda: disable '--update-deps' to work around buggy libffi(?) (#3499)
  • Update for March 2024 typos release (#3500)
  • Add timeout when installing optional packages (solvers) in conda (#3501)
  • Updates to CodeCov configuration (#3491)
• Contributed Packages
  • APPSI: Add warmstart for appsi_highs (issue #3450) (#3494)