diff --git a/Applications/Scale/test/testScale.cpp b/Applications/Scale/test/testScale.cpp
index b42af1e408..0046f7c432 100644
--- a/Applications/Scale/test/testScale.cpp
+++ b/Applications/Scale/test/testScale.cpp
@@ -575,7 +575,6 @@ void scalePhysicalOffsetFrames()
 
         PathActuator* act2 = new PathActuator();
         act2->setName("pathActuator2");
-        auto& path2 = act2->updPath<GeometryPath>();
         act2->addNewPathPoint("point2a", model->updGround(), Vec3(0));
         act2->addNewPathPoint("point2b", *pof2, offset2);
         act1->addComponent(act2);
diff --git a/Bindings/Java/OpenSimJNI/OpenSimContext.cpp b/Bindings/Java/OpenSimJNI/OpenSimContext.cpp
index 360478b686..c52213df80 100644
--- a/Bindings/Java/OpenSimJNI/OpenSimContext.cpp
+++ b/Bindings/Java/OpenSimJNI/OpenSimContext.cpp
@@ -30,7 +30,6 @@
 #include <OpenSim/Simulation/Model/MovingPathPoint.h>
 #include <OpenSim/Simulation/Model/Muscle.h>
 #include <OpenSim/Simulation/Model/PathPoint.h>
-#include <OpenSim/Simulation/Model/GeometryPath.h>
 #include <OpenSim/Simulation/Wrap/PathWrap.h>
 #include <OpenSim/Simulation/Model/ConditionalPathPoint.h>
 #include <OpenSim/Simulation/SimbodyEngine/SimbodyEngine.h>
@@ -125,21 +124,13 @@ double OpenSimContext::getMuscleLength(Muscle& m) {
 }
 
 const Array<AbstractPathPoint*>& OpenSimContext::getCurrentPath(Muscle& m) {
-  if (auto* p = dynamic_cast<const GeometryPath*>(&m.getPath())) {
-      return p->getCurrentPath(*_configState);
-  } else {
-      OPENSIM_THROW(Exception, "Muscle path is not a GeometryPath.")
-  }
+  return m.getGeometryPath().getCurrentPath(*_configState);
 }
 
 void OpenSimContext::copyMuscle(Muscle& from, Muscle& to) {
-  if (auto* p = dynamic_cast<const GeometryPath*>(&from.getPath())) {
-      to = from;
-      recreateSystemKeepStage();
-      to.updPath<GeometryPath>().updateGeometry(*_configState);
-  } else {
-      OPENSIM_THROW(Exception, "Muscle path is not a GeometryPath.")
-  }
+  to = from;
+  recreateSystemKeepStage();
+  to.updPath<GeometryPath>().updateGeometry(*_configState);
 }
 
 // Muscle Points
diff --git a/Bindings/Java/OpenSimJNI/OpenSimContext.h b/Bindings/Java/OpenSimJNI/OpenSimContext.h
index 60694317dc..7eded75a6d 100644
--- a/Bindings/Java/OpenSimJNI/OpenSimContext.h
+++ b/Bindings/Java/OpenSimJNI/OpenSimContext.h
@@ -48,7 +48,6 @@ class GeometryPath;
 class AbstractPathPoint;
 class PathWrap;
 class ConditionalPathPoint;
-class PathPoint;
 class WrapObject;
 class Analysis;
 class AnalyzeTool;
diff --git a/CHANGELOG.md b/CHANGELOG.md
index ba5726f138..3a8f903ae2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,7 +8,7 @@ This is not a comprehensive list of changes but rather a hand-curated collection
 
 v4.5
 ====
-- Added `AbstractPath` which is a base class for `GeometryPath` and other path types (#3388). TODO: add API changes.
+- Added `AbstractPath` which is a base class for `GeometryPath` and other path types (#3388).
 
 v4.4.1
 ======
diff --git a/OpenSim/Actuators/Test/testDeGrooteFregly2016Muscle.cpp b/OpenSim/Actuators/Test/testDeGrooteFregly2016Muscle.cpp
index 1342d6f5a3..36b724b248 100644
--- a/OpenSim/Actuators/Test/testDeGrooteFregly2016Muscle.cpp
+++ b/OpenSim/Actuators/Test/testDeGrooteFregly2016Muscle.cpp
@@ -142,9 +142,8 @@ TEST_CASE("DeGrooteFregly2016Muscle basics") {
     musclePtr->set_ignore_tendon_compliance(true);
     musclePtr->set_fiber_damping(0);
     musclePtr->setName("muscle");
-    auto& path = musclePtr->updPath<GeometryPath>();
-    path.appendNewPathPoint("origin", model.updGround(), SimTK::Vec3(0));
-    path.appendNewPathPoint("insertion", *body, SimTK::Vec3(0));
+    musclePtr->addNewPathPoint("origin", model.updGround(), SimTK::Vec3(0));
+    musclePtr->addNewPathPoint("insertion", *body, SimTK::Vec3(0));
     model.addComponent(musclePtr);
     auto& muscle = model.updComponent<DeGrooteFregly2016Muscle>("muscle");
 
diff --git a/OpenSim/Actuators/Test/testMuscles.cpp b/OpenSim/Actuators/Test/testMuscles.cpp
index 32b56799be..5a9b4b3864 100644
--- a/OpenSim/Actuators/Test/testMuscles.cpp
+++ b/OpenSim/Actuators/Test/testMuscles.cpp
@@ -873,9 +873,8 @@ void testMillard2012EquilibriumMuscle()
         const double tendonSlackLength  = 100.0; //long tendon
         auto muscle = new Millard2012EquilibriumMuscle("muscle", 1.,
                           optimalFiberLength, tendonSlackLength, 0.);
-        auto& path = muscle->updPath<GeometryPath>();
-        path.appendNewPathPoint("p1", model.updGround(), SimTK::Vec3(0));
-        path.appendNewPathPoint("p2", model.updGround(), SimTK::Vec3(0,0,1));
+        muscle->addNewPathPoint("p1", model.updGround(), SimTK::Vec3(0));
+        muscle->addNewPathPoint("p2", model.updGround(), SimTK::Vec3(0,0,1));
         model.addForce(muscle);
 
         SimTK::State& state = model.initSystem();
diff --git a/OpenSim/Examples/ExampleLuxoMuscle/LuxoMuscle_create_and_simulate.cpp b/OpenSim/Examples/ExampleLuxoMuscle/LuxoMuscle_create_and_simulate.cpp
index bdb3567aea..279ec4bdb5 100644
--- a/OpenSim/Examples/ExampleLuxoMuscle/LuxoMuscle_create_and_simulate.cpp
+++ b/OpenSim/Examples/ExampleLuxoMuscle/LuxoMuscle_create_and_simulate.cpp
@@ -760,7 +760,6 @@ void createLuxoJr(OpenSim::Model& model){
             new Millard2012EquilibriumMuscle("back_extensor_left",
                                     back_extensor_F0, back_extensor_lm0,
                                     back_extensor_lts, pennationAngle);
-
     backExtensorLeft->addNewPathPoint("back_extensor_left_origin", *chest,
                                       back_extensor_origin);
     backExtensorLeft->addNewPathPoint("back_extensor_left_insertion", *back,