diff --git a/src/OpenFOAM/db/IOobjectList/IOobjectList.H b/src/OpenFOAM/db/IOobjectList/IOobjectList.H
index 2c993f1fb0..d5e14a637d 100644
--- a/src/OpenFOAM/db/IOobjectList/IOobjectList.H
+++ b/src/OpenFOAM/db/IOobjectList/IOobjectList.H
@@ -6,7 +6,7 @@
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
     Copyright (C) 2011-2016 OpenFOAM Foundation
-    Copyright (C) 2016-2023 OpenCFD Ltd.
+    Copyright (C) 2016-2024 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -228,6 +228,9 @@ public:
 
     // Basic methods
 
+        //- Move insert IOobject into the list
+        inline bool add(std::unique_ptr<IOobject>&& objectPtr);
+
         //- Move insert IOobject into the list
         inline bool add(autoPtr<IOobject>& objectPtr);
 
diff --git a/src/OpenFOAM/db/IOobjectList/IOobjectListI.H b/src/OpenFOAM/db/IOobjectList/IOobjectListI.H
index 9408e7b53a..24044638ec 100644
--- a/src/OpenFOAM/db/IOobjectList/IOobjectListI.H
+++ b/src/OpenFOAM/db/IOobjectList/IOobjectListI.H
@@ -5,7 +5,7 @@
     \\  /    A nd           | www.openfoam.com
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
-    Copyright (C) 2022-2023 OpenCFD Ltd.
+    Copyright (C) 2022-2024 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -109,6 +109,17 @@ inline Foam::IOobjectList::IOobjectList
 
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
+inline bool Foam::IOobjectList::add(std::unique_ptr<IOobject>&& objectPtr)
+{
+    if (objectPtr)
+    {
+        return insert(objectPtr->name(), std::move(objectPtr));
+    }
+
+    return false;
+}
+
+
 inline bool Foam::IOobjectList::add(autoPtr<IOobject>& objectPtr)
 {
     if (objectPtr)
diff --git a/src/OpenFOAM/db/regIOobject/regIOobject.H b/src/OpenFOAM/db/regIOobject/regIOobject.H
index 9cce9137e7..6dad7249ca 100644
--- a/src/OpenFOAM/db/regIOobject/regIOobject.H
+++ b/src/OpenFOAM/db/regIOobject/regIOobject.H
@@ -6,7 +6,7 @@
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
     Copyright (C) 2011-2017 OpenFOAM Foundation
-    Copyright (C) 2018-2023 OpenCFD Ltd.
+    Copyright (C) 2018-2024 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -195,6 +195,12 @@ public:
             template<class Type>
             inline static Type& store(Type* p);
 
+            //- Transfer pointer ownership to its registry.
+            //  Resets (clears) the parameter.
+            //  \return reference to the stored object
+            template<class Type>
+            inline static Type& store(std::unique_ptr<Type>&& ptr);
+
             //- Transfer pointer ownership to its registry.
             //  Resets (clears) the parameter.
             //  \return reference to the stored object
diff --git a/src/OpenFOAM/db/regIOobject/regIOobjectI.H b/src/OpenFOAM/db/regIOobject/regIOobjectI.H
index 1b4c632e87..1f04bd68f0 100644
--- a/src/OpenFOAM/db/regIOobject/regIOobjectI.H
+++ b/src/OpenFOAM/db/regIOobject/regIOobjectI.H
@@ -6,7 +6,7 @@
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
     Copyright (C) 2011-2015 OpenFOAM Foundation
-    Copyright (C) 2018-2023 OpenCFD Ltd.
+    Copyright (C) 2018-2024 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -80,6 +80,14 @@ inline Type& Foam::regIOobject::store(Type* p)
 }
 
 
+template<class Type>
+inline Type& Foam::regIOobject::store(std::unique_ptr<Type>&& ptr)
+{
+    // Pass management to objectRegistry
+    return store(ptr.release());
+}
+
+
 template<class Type>
 inline Type& Foam::regIOobject::store(autoPtr<Type>& ptr)
 {
@@ -182,6 +190,7 @@ inline Type& Foam::regIOobject::store(tmp<Type>&& ptr)
 
 inline void Foam::regIOobject::release(const bool unregister) noexcept
 {
+    // Note: could also return the old ownedByRegistry_ value
     ownedByRegistry_ = false;
     if (unregister)
     {
diff --git a/src/OpenFOAM/global/fileOperations/fileOperation/fileOperation.C b/src/OpenFOAM/global/fileOperations/fileOperation/fileOperation.C
index 8addedf1d5..54f6ea8203 100644
--- a/src/OpenFOAM/global/fileOperations/fileOperation/fileOperation.C
+++ b/src/OpenFOAM/global/fileOperations/fileOperation/fileOperation.C
@@ -1413,7 +1413,7 @@ Foam::fileName Foam::fileOperation::processorsCasePath
     const word& procsDir
 ) const
 {
-    return io.rootPath()/io.time().globalCaseName()/procsDir;
+    return io.rootPath()/io.globalCaseName()/procsDir;
 }
 
 
diff --git a/src/OpenFOAM/global/fileOperations/masterUncollatedFileOperation/masterUncollatedFileOperation.C b/src/OpenFOAM/global/fileOperations/masterUncollatedFileOperation/masterUncollatedFileOperation.C
index 0b8c5aba87..89c6674f9f 100644
--- a/src/OpenFOAM/global/fileOperations/masterUncollatedFileOperation/masterUncollatedFileOperation.C
+++ b/src/OpenFOAM/global/fileOperations/masterUncollatedFileOperation/masterUncollatedFileOperation.C
@@ -198,8 +198,10 @@ Foam::fileOperations::masterUncollatedFileOperation::filePathInfo
         )
         {
             fileName parentPath =
-                io.rootPath()/io.time().globalCaseName()
-               /io.instance()/io.db().dbDir()/io.local()/io.name();
+            (
+                io.rootPath()/io.globalCaseName()
+               /io.instance()/io.db().dbDir()/io.local()/io.name()
+            );
 
             if (isFileOrDir(isFile, parentPath))
             {
@@ -356,7 +358,7 @@ Foam::fileOperations::masterUncollatedFileOperation::localObjectPath
         case fileOperation::PARENTOBJECT:
         {
             return
-                io.rootPath()/io.time().globalCaseName()
+                io.rootPath()/io.globalCaseName()
                /io.instance()/io.db().dbDir()/io.local()/io.name();
         }
         break;
diff --git a/src/OpenFOAM/global/fileOperations/uncollatedFileOperation/uncollatedFileOperation.C b/src/OpenFOAM/global/fileOperations/uncollatedFileOperation/uncollatedFileOperation.C
index d2b6a3656f..6278d08702 100644
--- a/src/OpenFOAM/global/fileOperations/uncollatedFileOperation/uncollatedFileOperation.C
+++ b/src/OpenFOAM/global/fileOperations/uncollatedFileOperation/uncollatedFileOperation.C
@@ -108,13 +108,15 @@ Foam::fileName Foam::fileOperations::uncollatedFileOperation::filePathInfo
             {
                 // Constant & system can come from global case
 
-                fileName parentObjectPath =
-                    io.rootPath()/io.time().globalCaseName()
-                   /io.instance()/io.db().dbDir()/io.local()/io.name();
+                fileName parentPath =
+                (
+                    io.rootPath()/io.globalCaseName()
+                   /io.instance()/io.db().dbDir()/io.local()/io.name()
+                );
 
-                if (isFileOrDir(isFile, parentObjectPath))
+                if (isFileOrDir(isFile, parentPath))
                 {
-                    return parentObjectPath;
+                    return parentPath;
                 }
             }
 
diff --git a/src/parallel/distributed/distributedTriSurfaceMesh/distributedTriSurfaceMesh.C b/src/parallel/distributed/distributedTriSurfaceMesh/distributedTriSurfaceMesh.C
index 8591ee1d3d..13828bfa9a 100644
--- a/src/parallel/distributed/distributedTriSurfaceMesh/distributedTriSurfaceMesh.C
+++ b/src/parallel/distributed/distributedTriSurfaceMesh/distributedTriSurfaceMesh.C
@@ -250,8 +250,10 @@ Foam::word Foam::distributedTriSurfaceMesh::findLocalInstance
 
     // Search in parent directory
     fileName parentDir =
-        io.rootPath()/io.time().globalCaseName()
-       /io.instance()/io.db().dbDir()/io.local()/io.name();
+    (
+        io.rootPath()/io.globalCaseName()
+       /io.instance()/io.db().dbDir()/io.local()/io.name()
+    );
 
     if (fileHandler().isDir(parentDir))
     {
@@ -280,9 +282,11 @@ Foam::word Foam::distributedTriSurfaceMesh::findLocalInstance
             continue;
         }
 
-        fileName parentDir =
-            io.rootPath()/io.time().globalCaseName()
-           /ts[instanceI].name()/io.db().dbDir()/io.local()/io.name();
+        parentDir =
+        (
+            io.rootPath()/io.globalCaseName()
+           /ts[instanceI].name()/io.db().dbDir()/io.local()/io.name()
+        );
 
         if (fileHandler().isDir(parentDir))
         {
@@ -301,9 +305,11 @@ Foam::word Foam::distributedTriSurfaceMesh::findLocalInstance
         // constant function of the time, because the latter points to
         // the case constant directory in parallel cases
 
-        fileName parentDir =
-            io.rootPath()/io.time().globalCaseName()
-           /io.time().constant()/io.db().dbDir()/io.local()/io.name();
+        parentDir =
+        (
+            io.rootPath()/io.globalCaseName()
+           /io.time().constant()/io.db().dbDir()/io.local()/io.name()
+        );
 
         if (fileHandler().isDir(parentDir))
         {