diff --git a/doc/Build.md b/doc/Build.md
index 490a3c6c94..6c201777eb 100644
--- a/doc/Build.md
+++ b/doc/Build.md
@@ -1,23 +1,23 @@
 ## Getting the code
 
-Links to all code packs are available on https://dl.openfoam.com. For OpenFOAM-v2212:
+Links to all code packs are available on https://dl.openfoam.com. For OpenFOAM-v2306:
 
 - https://dl.openfoam.com/source/latest/
-- Source: https://dl.openfoam.com/source/v2212/OpenFOAM-v2212.tgz
-- ThirdParty: https://dl.openfoam.com/source/v2212/ThirdParty-v2212.tgz
+- Source: https://dl.openfoam.com/source/v2306/OpenFOAM-v2306.tgz
+- ThirdParty: https://dl.openfoam.com/source/v2306/ThirdParty-v2306.tgz
 
 ## OpenFOAM® Quick Build Guide
 
 Prior to building, ensure that the [system requirements][link openfoam-require]
 are satisfied (including any special [cross-compiling][wiki-cross-compile]
 considerations), and source the correct OpenFOAM environment.
-For example, for the OpenFOAM-v2212 version:
+For example, for the OpenFOAM-v2306 version:
 ```
-source <installation path>/OpenFOAM-v2212/etc/bashrc
+source <installation path>/OpenFOAM-v2306/etc/bashrc
 ```
 e.g. if installed under the `~/openfoam` directory
 ```
-source ~/openfoam/OpenFOAM-v2212/etc/bashrc
+source ~/openfoam/OpenFOAM-v2306/etc/bashrc
 ```
 
 
@@ -157,4 +157,4 @@ More details in the [ThirdParty build guide][link third-build].
 [wiki-config]: https://develop.openfoam.com/Development/openfoam/-/wikis/configuring
 
 ---
-Copyright 2019-2022 OpenCFD Ltd
+Copyright 2019-2023 OpenCFD Ltd
diff --git a/etc/bashrc b/etc/bashrc
index 9151a94faf..77175bf41e 100644
--- a/etc/bashrc
+++ b/etc/bashrc
@@ -55,7 +55,7 @@
 
 # [WM_PROJECT_VERSION] - A human-readable version name
 # A development version is often named 'com' - as in www.openfoam.com
-export WM_PROJECT_VERSION=com
+export WM_PROJECT_VERSION=v2306
 
 #------------------------------------------------------------------------------
 # Configuration environment variables.
diff --git a/etc/cshrc b/etc/cshrc
index 079505d3dd..d8d5137981 100644
--- a/etc/cshrc
+++ b/etc/cshrc
@@ -55,7 +55,7 @@
 
 # [WM_PROJECT_VERSION] - A human-readable version name
 # A development version is often named 'com' - as in www.openfoam.com
-setenv WM_PROJECT_VERSION com
+setenv WM_PROJECT_VERSION v2306
 
 #------------------------------------------------------------------------------
 # Configuration environment variables.
diff --git a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ConeInjection/ConeInjection.C b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ConeInjection/ConeInjection.C
index 59cc22beba..16a406fa7a 100644
--- a/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ConeInjection/ConeInjection.C
+++ b/src/lagrangian/intermediate/submodels/Kinematic/InjectionModel/ConeInjection/ConeInjection.C
@@ -96,7 +96,7 @@ Foam::ConeInjection<CloudType>::ConeInjection
             this->coeffDict().subDict("sizeDistribution"), owner.rndGen()
         )
     ),
-    nInjected_(this->parcelsAddedTotal()),
+    nInjected_(Pstream::master() ? this->parcelsAddedTotal() : 0),
     injectorOrder_(identity(positionAxis_.size())),
     tanVec1_(),
     tanVec2_()
@@ -233,7 +233,7 @@ Foam::label Foam::ConeInjection<CloudType>::parcelsToInject
         const label targetParcels =
             ceil(positionAxis_.size()*parcelsPerInjector_*volumeFraction);
 
-        return targetParcels - nInjected_;
+        return targetParcels - returnReduce(nInjected_, sumOp<label>());
     }
 
     return 0;
diff --git a/src/meshTools/AMIInterpolation/AMIInterpolation/advancingFrontAMI/advancingFrontAMI.C b/src/meshTools/AMIInterpolation/AMIInterpolation/advancingFrontAMI/advancingFrontAMI.C
index f835c6c70e..9a803ba08d 100644
--- a/src/meshTools/AMIInterpolation/AMIInterpolation/advancingFrontAMI/advancingFrontAMI.C
+++ b/src/meshTools/AMIInterpolation/AMIInterpolation/advancingFrontAMI/advancingFrontAMI.C
@@ -614,6 +614,12 @@ void Foam::advancingFrontAMI::write(Ostream& os) const
         faceAreaIntersect::triangulationModeNames_[faceAreaIntersect::tmMesh],
         faceAreaIntersect::triangulationModeNames_[triMode_]
     );
+    os.writeEntryIfDifferent<word>
+    (
+        "areaNormalisationMode",
+        areaNormalisationModeNames_[areaNormalisationMode::project],
+        areaNormalisationModeNames_[areaNormalisationMode_]
+    );
 }
 
 
diff --git a/src/meshTools/AMIInterpolation/patches/cyclicAMI/cyclicAMIPolyPatch/cyclicAMIPolyPatch.C b/src/meshTools/AMIInterpolation/patches/cyclicAMI/cyclicAMIPolyPatch/cyclicAMIPolyPatch.C
index 91e697ed6e..c813b28cce 100644
--- a/src/meshTools/AMIInterpolation/patches/cyclicAMI/cyclicAMIPolyPatch/cyclicAMIPolyPatch.C
+++ b/src/meshTools/AMIInterpolation/patches/cyclicAMI/cyclicAMIPolyPatch/cyclicAMIPolyPatch.C
@@ -382,8 +382,8 @@ void Foam::cyclicAMIPolyPatch::resetAMI(const UList<point>& points) const
     }
 
     const cyclicAMIPolyPatch& nbr = neighbPatch();
-    pointField srcPoints(localPoints());
-    pointField nbrPoints(nbr.localPoints());
+    const pointField srcPoints(points, meshPoints());
+    pointField nbrPoints(points, nbr.meshPoints());
 
     Info<< "AMI: Creating AMI for source:" << name()
         << " and target:" << nbr.name() << endl;
diff --git a/src/regionModels/regionCoupling/derivedFvPatchFields/filmPyrolysisRadiativeCoupledMixed/filmPyrolysisRadiativeCoupledMixedFvPatchScalarField.C b/src/regionModels/regionCoupling/derivedFvPatchFields/filmPyrolysisRadiativeCoupledMixed/filmPyrolysisRadiativeCoupledMixedFvPatchScalarField.C
index 4ce0f3ef44..0fde87b8f9 100644
--- a/src/regionModels/regionCoupling/derivedFvPatchFields/filmPyrolysisRadiativeCoupledMixed/filmPyrolysisRadiativeCoupledMixedFvPatchScalarField.C
+++ b/src/regionModels/regionCoupling/derivedFvPatchFields/filmPyrolysisRadiativeCoupledMixed/filmPyrolysisRadiativeCoupledMixedFvPatchScalarField.C
@@ -6,7 +6,11 @@
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
     Copyright (C) 2013-2017 OpenFOAM Foundation
+<<<<<<< HEAD
     Copyright (C) 2019-2023 OpenCFD Ltd.
+=======
+    Copyright (C) 2019-202i3 OpenCFD Ltd.
+>>>>>>> origin/master
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -38,8 +42,7 @@ namespace Foam
 // * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
 const filmPyrolysisRadiativeCoupledMixedFvPatchScalarField::filmModelType&
-filmPyrolysisRadiativeCoupledMixedFvPatchScalarField::
-filmModel() const
+filmPyrolysisRadiativeCoupledMixedFvPatchScalarField::filmModel() const
 {
     typedef filmModelType ModelType;
 
@@ -73,8 +76,7 @@ filmModel() const
 
 const filmPyrolysisRadiativeCoupledMixedFvPatchScalarField::
 pyrolysisModelType&
-filmPyrolysisRadiativeCoupledMixedFvPatchScalarField::
-pyrModel() const
+filmPyrolysisRadiativeCoupledMixedFvPatchScalarField::pyrModel() const
 {
     typedef pyrolysisModelType ModelType;
 
@@ -90,7 +92,7 @@ pyrModel() const
             return mdl;
         }
     }
-
+    
     DynamicList<word> modelNames(models.size());
     for (const ModelType& mdl : models)
     {
@@ -241,13 +243,9 @@ void filmPyrolysisRadiativeCoupledMixedFvPatchScalarField::rmap
 {
     mixedFvPatchScalarField::rmap(ptf, addr);
 
-    const filmPyrolysisRadiativeCoupledMixedFvPatchScalarField& tiptf =
-        refCast
-        <
-            const filmPyrolysisRadiativeCoupledMixedFvPatchScalarField
-        >(ptf);
+    const auto& fpptf = refCast<const myType>(ptf);
 
-    temperatureCoupledBase::rmap(tiptf, addr);
+    temperatureCoupledBase::rmap(fpptf, addr);
 }
 
 
@@ -259,8 +257,7 @@ void filmPyrolysisRadiativeCoupledMixedFvPatchScalarField::updateCoeffs()
     }
 
     // Get the coupling information from the mappedPatchBase
-    const mappedPatchBase& mpp =
-        refCast<const mappedPatchBase>(patch().patch());
+    const auto& mpp = refCast<const mappedPatchBase>(patch().patch());
 
     const label patchi = patch().index();
     const label nbrPatchi = mpp.samplePolyPatch().index();
@@ -272,10 +269,7 @@ void filmPyrolysisRadiativeCoupledMixedFvPatchScalarField::updateCoeffs()
     scalarField intFld(patchInternalField());
 
     const auto& nbrField =
-        refCast
-        <
-            const filmPyrolysisRadiativeCoupledMixedFvPatchScalarField
-        >
+        refCast<const myType>
         (
             nbrPatch.lookupPatchField<volScalarField>(TnbrName_)
         );
@@ -293,7 +287,7 @@ void filmPyrolysisRadiativeCoupledMixedFvPatchScalarField::updateCoeffs()
     scalarField KDeltaNbr(nbrK*nbrPatch.deltaCoeffs());
     mpp.distribute(KDeltaNbr);
 
-    scalarField myKDelta(K*patch().deltaCoeffs());
+    const scalarField myKDelta(K*patch().deltaCoeffs());
 
     scalarList Tfilm(patch().size(), Zero);
     scalarList htcwfilm(patch().size(), Zero);
@@ -306,22 +300,78 @@ void filmPyrolysisRadiativeCoupledMixedFvPatchScalarField::updateCoeffs()
     scalarField qr(patch().size(), Zero);
 
     label coupledPatchi = -1;
+    label filmPatchi = -1;
     if (pyrolysisRegionName_ == mesh.name())
     {
+        // Working on the pyrolysis mesh
+
         coupledPatchi = patchi;
         if (qrName_ != "none")
         {
             qr = nbrPatch.lookupPatchField<volScalarField>(qrName_);
             mpp.distribute(qr);
         }
+
+        filmPatchi = pyrolysis.nbrCoupledPatchID(film, coupledPatchi);
+
+        const scalarField htcw(film.htcw().h()().boundaryField()[filmPatchi]);
+
+        // Obtain htcw
+        htcwfilm =
+            pyrolysis.mapRegionPatchField
+            (
+                film,
+                coupledPatchi,
+                filmPatchi,
+                htcw,
+                true
+            );
+
+        // Obtain Tfilm at the boundary through Ts.
+        // NOTE: Tf is not good as at the boundary it will retrieve Tp
+        const scalarField Ts(film.Ts().boundaryField()[filmPatchi]);
+        Tfilm =
+            pyrolysis.mapRegionPatchField
+            (
+                 film,
+                 coupledPatchi,
+                 filmPatchi,
+                 Ts,
+                 true
+            );
+
+        // Obtain delta
+        filmDelta =
+            pyrolysis.mapRegionPatchField<scalar>
+            (
+                film,
+                "deltaf",
+                coupledPatchi,
+                true
+            );
     }
     else if (pyrolysis.primaryMesh().name() == mesh.name())
     {
+        // Working on the primary mesh
+
         coupledPatchi = nbrPatch.index();
         if (qrName_ != "none")
         {
             qr = patch().lookupPatchField<volScalarField>(qrName_);
         }
+
+        filmPatchi = pyrolysis.nbrCoupledPatchID(film, coupledPatchi);
+
+        htcwfilm = film.htcw().h()().boundaryField()[filmPatchi];
+        film.toPrimary(filmPatchi, htcwfilm);
+
+        // Obtain Tfilm at the boundary through Ts.
+        // NOTE: Tf is not good as at the boundary it will retrieve Tp
+        Tfilm = film.Ts().boundaryField()[filmPatchi];
+        film.toPrimary(filmPatchi, Tfilm);
+
+        filmDelta = film.delta().boundaryField()[filmPatchi];
+        film.toPrimary(filmPatchi, filmDelta);
     }
     else
     {
@@ -331,39 +381,8 @@ void filmPyrolysisRadiativeCoupledMixedFvPatchScalarField::updateCoeffs()
             << exit(FatalError);
     }
 
-    const label filmPatchi = pyrolysis.nbrCoupledPatchID(film, coupledPatchi);
-
-    const scalarField htcw(film.htcw().h()().boundaryField()[filmPatchi]);
-
-    // Obtain htcw
-    htcwfilm =
-        pyrolysis.mapRegionPatchField
-        (
-            film,
-            coupledPatchi,
-            filmPatchi,
-            htcw,
-            true
-        );
-
-
-    // Obtain Tfilm at the boundary through Ts.
-    // NOTE: Tf is not good as at the boundary it will retrieve Tp
-    Tfilm = film.Ts().boundaryField()[filmPatchi];
-    film.toPrimary(filmPatchi, Tfilm);
-
-    // Obtain delta
-    filmDelta =
-        pyrolysis.mapRegionPatchField<scalar>
-        (
-            film,
-            "deltaf",
-            coupledPatchi,
-            true
-        );
-
      // Estimate wetness of the film (1: wet , 0: dry)
-     scalarField ratio
+     const scalarField ratio
      (
         min
         (
@@ -376,14 +395,11 @@ void filmPyrolysisRadiativeCoupledMixedFvPatchScalarField::updateCoeffs()
         )
      );
 
-    scalarField qConv(ratio*htcwfilm*(Tfilm - Tp)*convectiveScaling_);
-
-    scalarField qRad((1.0 - ratio)*qr);
-
-    scalarField alpha(KDeltaNbr - (qRad + qConv)/Tp);
+    const scalarField qConv(ratio*htcwfilm*(Tfilm - Tp)*convectiveScaling_);
+    const scalarField qRad((1.0 - ratio)*qr);
+    const scalarField alpha(KDeltaNbr - (qRad + qConv)/Tp);
 
     valueFraction() = alpha/(alpha + (1.0 - ratio)*myKDelta);
-
     refValue() = ratio*Tfilm + (1.0 - ratio)*(KDeltaNbr*nbrIntFld)/alpha;
 
     mixedFvPatchScalarField::updateCoeffs();
diff --git a/src/regionModels/regionCoupling/derivedFvPatchFields/filmPyrolysisRadiativeCoupledMixed/filmPyrolysisRadiativeCoupledMixedFvPatchScalarField.H b/src/regionModels/regionCoupling/derivedFvPatchFields/filmPyrolysisRadiativeCoupledMixed/filmPyrolysisRadiativeCoupledMixedFvPatchScalarField.H
index 92b6a4111a..3b2c76c1e5 100644
--- a/src/regionModels/regionCoupling/derivedFvPatchFields/filmPyrolysisRadiativeCoupledMixed/filmPyrolysisRadiativeCoupledMixedFvPatchScalarField.H
+++ b/src/regionModels/regionCoupling/derivedFvPatchFields/filmPyrolysisRadiativeCoupledMixed/filmPyrolysisRadiativeCoupledMixedFvPatchScalarField.H
@@ -110,6 +110,8 @@ public:
     typedef Foam::regionModels::pyrolysisModels::pyrolysisModel
         pyrolysisModelType;
 
+    typedef filmPyrolysisRadiativeCoupledMixedFvPatchScalarField myType;
+
 
 private:
 
diff --git a/tutorials/incompressible/pimpleFoam/laminar/mixerVesselAMI2D/mixerVesselAMI2D-topologyChange/system/fvSolution b/tutorials/incompressible/pimpleFoam/laminar/mixerVesselAMI2D/mixerVesselAMI2D-topologyChange/system/fvSolution
index 1c25f4cbff..db8c83bf09 100644
--- a/tutorials/incompressible/pimpleFoam/laminar/mixerVesselAMI2D/mixerVesselAMI2D-topologyChange/system/fvSolution
+++ b/tutorials/incompressible/pimpleFoam/laminar/mixerVesselAMI2D/mixerVesselAMI2D-topologyChange/system/fvSolution
@@ -19,7 +19,7 @@ solvers
     "pcorr.*"
     {
         solver          GAMG;
-        smoother        GaussSeidel;
+        smoother        DICGaussSeidel;
         cacheAgglomeration no;
         tolerance        0.02;
         relTol           0;