Merge pull request #3858 from mrmundt/finalize-release-6.10.0

Finalize Pyomo 6.10.0 for Release

Author: mrmundt

.coin-or/projDesc.xml

@@ -208,8 +208,8 @@ Carl D. Laird, Chair, Pyomo Management Committee, claird at andrew dot cmu dot e
 			     Use explicit overrides to disable use of automated
 			     version reporting.
 			-->
-			<stableVersionNumber>6.9.5</stableVersionNumber>
-			<releaseNumber>6.9.5</releaseNumber>
+			<stableVersionNumber>6.10.0</stableVersionNumber>
+			<releaseNumber>6.10.0</releaseNumber>
 
 		</developmentStatus>
 

CHANGELOG.md

@@ -1,6 +1,59 @@
 Pyomo CHANGELOG
 ===============
 
+-------------------------------------------------------------------------------
+Pyomo 6.10.0   (20 Feb 2026)
+-------------------------------------------------------------------------------
+
+- General
+  - Remove support for Python 3.9 (#3760)
+  - Typo corrections (#3779, #3831)
+  - Remove external `ply` dependency (#3840)
+  - Apply 2026 `black` formatting updates (#3820)
+  - Update copyright to 2026 (#3846)
+  - Improvements to `Config` classes, tests, and docs (#3790)
+  - Improve efficiency of nested `StreamIndenter` objects (#3813)
+- Core
+  - Remove sorting from `tabular_writer` (#3804)
+  - Enhance static typing (#3803)
+  - Update `SuffixFinder` to look in context for external data objects (#3844)
+- Documentation
+  - Add support for Sphinx 9.1 (#3815, #3818)
+  - Add formal documentation for future `pyomo.contrib` changes (#3768)
+  - Fix docstrings in `core.lp_dual` transformation (#3842)
+  - Update related packages page (#3849, #3853)
+- GDP
+  - Fix bug transforming Blocks in `gdp.mbigm` transformation (#3811)
+- Solver Interfaces
+  - Update `ipopt_v2` interface (#3792)
+  - Add cuOpt direct solver (#3620)
+  - Improvements for KNITRO interface (#3762, #3765, #3766, #3802, #3824,
+    #3826, #3827, #3837, #3794)
+  - Remove `iteration_count` as a default Results object value (#3767)
+  - Compute `wall_time` using `time.perf_counter` (#3825)
+  - Incorporate Model observer into `gurobi_v2` interface (#3698)
+  - Add new GAMS interface, writer, and solution loader (#3683)
+- Testing
+  - Testing infrastructure cleanup/rework (#3764, #3770, #3773, #3810)
+  - Correct broken URLs (#3761, #3796, #3845, #3847, #3848)
+  - Pytest version workarounds (#3780, #3784)
+  - Specify `openmpi` build type in testing environment (#3797)
+  - Add flexibility to error checking for `gurobi_minlp` (#3822)
+  - Update solver tests for gurobiasl 13.0.0 (#3850)
+  - Rework `conftest.py` to support solver/writer marker expressions (#3854)
+  - Relax mumps reallocation test (#3857)
+- Contributed Packages
+  - DoE: Disable unreliable test (#3776)
+  - DoE: Correct A optimality (#3803)
+  - DoE: Replace computationally expensive example with Rooney Biegler (#3828)
+  - GDPopt: Improvements to LDSDA (#3830)
+  - observer: Add in Model observer package (#3695, #3829)
+  - Parmest: Consolidate Rooney Biegler (#3793)
+  - Parmest: Update documentation (#3791)
+  - PyROS: Update tests for Python 3.14 (#3782)
+  - PyROS: Fix `IntersectionSet` implementation (#3786)
+  - PyROS: Fix scaling typo in separation objectives (#3817)
+
 -------------------------------------------------------------------------------
 Pyomo 6.9.5   (17 Oct 2025)
 -------------------------------------------------------------------------------

RELEASE.md

@@ -1,19 +1,17 @@
-We are pleased to announce the release of Pyomo 6.9.5.
+We are pleased to announce the release of Pyomo 6.10.0.
 
 Pyomo is a collection of Python software packages that supports a
 diverse set of optimization capabilities for formulating and analyzing
 optimization models.
 
-The following are highlights of the 6.9 release series:
+The following are highlights of the 6.10 release series:
 
-- Removed support for Python 3.8
-- Added support for Python 3.14
-- New Logic-Based Discrete-Steepest Descent Algorithm in GDPOpt
-- New External Function for Cubic Spline Interpolation
-- New ASL External Functions Library
+- Removed support for Python 3.9
+- Removed hard dependency on `ply`
+- New Model Observer package
 - New solver interfaces:
-  - `knitro_direct` KNITRO Python bindings interface
-  - Add `gurobi_direct` support for MINLP
+  - `gams_v2` solver, writer, and solution loader
+  - `cuopt` direct solver interface
   - v2: Ongoing solver interface refactor
 - ...and of course numerous minor bug fixes and performance enhancements
 

doc/OnlineDocs/getting_started/solvers.rst

@@ -28,14 +28,19 @@ the license requirements for their desired solver.
      - License |br| Docs
    * - cplex
      - ``pip install cplex``
-     - ``conda install ‑c ibmdecisionoptimization \    cplex``
+     - ``conda install ‑c \ ibmdecisionoptimization cplex``
      - `License <https://www.ibm.com/products/ilog-cplex-optimization-studio/pricing>`__
        `Docs <https://www.ibm.com/docs/en/icos/latest?topic=cplex-installing>`__
    * - CPoptimizer
-     - ``pip install cplex \    docplex``
-     - ``conda install ‑c ibmdecisionoptimization \    cplex docplex``
+     - ``pip install cplex docplex``
+     - ``conda install ‑c \ ibmdecisionoptimization \        cplex docplex``
      - `License <https://github.com/IBMDecisionOptimization/docplex-doc/blob/master/LICENSE.txt>`__
        `Docs <https://ibmdecisionoptimization.github.io/docplex-doc/getting_started_python.html>`__
+   * - cuOpt
+     - CUDA-version dependent; see the official `documentation <https://docs.nvidia.com/cuopt/user-guide/latest/cuopt-python/quick-start.html>`__.
+     - CUDA-version dependent; see the official `documentation <https://docs.nvidia.com/cuopt/user-guide/latest/cuopt-python/quick-start.html>`__.
+     - `License <https://docs.nvidia.com/cuopt/user-guide/latest/license.html>`__
+       `Docs <https://docs.nvidia.com/cuopt/user-guide/latest/cuopt-python/quick-start.html>`__
    * - cyipopt
      - ``pip install cyipopt``
      - ``conda install ‑c conda‑forge cyipopt``

pyomo/contrib/solver/__init__.py

@@ -38,7 +38,7 @@
 moved_module(
     'pyomo.contrib.solver.solvers.sol_reader',
     'pyomo.contrib.solver.solvers.asl_sol_reader',
-    version='6.10.0.dev0',
+    version='6.10.0',
 )
 
 del _module, moved_module

pyomo/core/base/param.py

@@ -471,7 +471,7 @@ def sparse_items(self, sort=SortComponents.UNSORTED):
     @deprecated(
         "The sparse_iterkeys method is deprecated.  Use sparse_keys()",
         # This should have been deprecated when we dropped Python 2.7
-        version='6.10.0.dev0',
+        version='6.10.0',
     )
     def sparse_iterkeys(self):
         """Return an iterator for the keys in the defined parameters"""
@@ -480,7 +480,7 @@ def sparse_iterkeys(self):
     @deprecated(
         "The sparse_itervalues method is deprecated.  Use sparse_values()",
         # This should have been deprecated when we dropped Python 2.7
-        version='6.10.0.dev0',
+        version='6.10.0',
     )
     def sparse_itervalues(self):
         """Return an iterator for the defined param data objects"""
@@ -489,7 +489,7 @@ def sparse_itervalues(self):
     @deprecated(
         "The sparse_iteritems method is deprecated.  Use sparse_items()",
         # This should have been deprecated when we dropped Python 2.7
-        version='6.10.0.dev0',
+        version='6.10.0',
     )
     def sparse_iteritems(self):
         """Return an iterator of (index,data) tuples for defined parameters"""

pyomo/version/info.py

@@ -25,8 +25,8 @@
 major = 6
 minor = 10
 micro = 0
-releaselevel = 'invalid'
-# releaselevel = 'final'
+# releaselevel = 'invalid'
+releaselevel = 'final'
 serial = 0
 
 if releaselevel == 'final':