Fix erasure of Integrator subsytem, remove OpenMDAO upper bound

openconcept/__init__.py

@@ -1 +1 @@
-__version__ = "1.2.4"
+__version__ = "1.2.5"

openconcept/mission/mission_groups.py

@@ -212,11 +212,21 @@ def _setup_procs(self, *args):
         # (This IntegratorGroup is never added directly to the OM model)
         time_units = self._oc_time_units
         num_nodes = self.options["num_nodes"]
-        self.add_subsystem(
-            "ode_integ",
-            Integrator(time_setup="duration", method="simpson", diff_units=time_units, num_nodes=num_nodes),
-        )
 
+        # In OM 3.40 and later, static_mode is no longer True when this method is called, which leads to any
+        # subsystems that are added here to later be erased. So here we force static_mode to True while we add the
+        # Integrator subsystem to get around the issue. See https://github.com/OpenMDAO/OpenMDAO/issues/3621 for
+        # more details
+        try:
+            if self._problem_meta is not None:
+                self._problem_meta["static_mode"] = True
+            self.add_subsystem(
+                "ode_integ",
+                Integrator(time_setup="duration", method="simpson", diff_units=time_units, num_nodes=num_nodes),
+            )
+        finally:
+            if self._problem_meta is not None:
+                self._problem_meta["static_mode"] = False
         # Call om.Group's _setup_procs which does a lot of things as an initial phase of setup.
         # We pass *args because the signature of this method varies depending on the OM version.
         super(IntegratorGroup, self)._setup_procs(*args)

setup.py

@@ -42,10 +42,10 @@
         # and the index.rst file in the docs when you change these
         "numpy >=1.20, <2",
         "scipy>=1.7.0",
-        "openmdao >=3.21, <=3.39",
+        "openmdao >=3.21",
     ],
     extras_require={
-        "testing": ["pytest", "pytest-cov", "coverage", "openaerostruct", "parameterized"],
+        "testing": ["pytest", "pytest-cov", "coverage", "openaerostruct", "parameterized", "om-pycycle>=4.4.0"],
         "docs": ["sphinx_mdolab_theme", "openaerostruct<=2.7.1"],
         "plot": ["matplotlib"],
     },