chore: Updates for 26R1

.github/workflows/ci.yml

@@ -115,7 +115,7 @@ jobs:
     needs: [docs-style]
     runs-on: [self-hosted, pyfluent]
     env:
-      DOC_DEPLOYMENT_IMAGE_TAG: v25.1.0
+      DOC_DEPLOYMENT_IMAGE_TAG: v25.2.0
       PYFLUENT_CONTAINER_MOUNT_SOURCE: "/home/ansys/Downloads/ansys_fluent_core_examples"
 
     steps:
@@ -463,26 +463,57 @@ jobs:
             doc/source/api/core/meshing/datamodel
             doc/source/api/core/solver/tui
             doc/source/api/core/solver/datamodel
-          key: API-Code-v${{ env.API_CODE_CACHE }}-${{ steps.version.outputs.PYFLUENT_VERSION }}-${{ vars.FLUENT_STABLE_IMAGE_DEV }}-${{ hashFiles('src/ansys/fluent/core/codegen/**') }}
-          restore-keys: API-Code-v${{ env.API_CODE_CACHE }}-${{ steps.version.outputs.PYFLUENT_VERSION }}-${{ vars.FLUENT_STABLE_IMAGE_DEV }}
+          key: API-Code-v${{ env.API_CODE_CACHE }}-${{ steps.version.outputs.PYFLUENT_VERSION }}-v25.2.0-${{ hashFiles('src/ansys/fluent/core/codegen/**') }}
+          restore-keys: API-Code-v${{ env.API_CODE_CACHE }}-${{ steps.version.outputs.PYFLUENT_VERSION }}-v25.2.0
 
       - name: Pull 25.2 Fluent docker image
-        if: steps.cache-251-api-code.outputs.cache-hit != 'true'
+        if: steps.cache-252-api-code.outputs.cache-hit != 'true'
         run: make docker-pull
         env:
-          FLUENT_IMAGE_TAG: ${{ vars.FLUENT_STABLE_IMAGE_DEV }}
+          FLUENT_IMAGE_TAG: v25.2.0
 
       - name: Run 25.2 API codegen
         if: steps.cache-252-api-code.outputs.cache-hit != 'true'
         run: make api-codegen
         env:
-          FLUENT_IMAGE_TAG: ${{ vars.FLUENT_STABLE_IMAGE_DEV }}
+          FLUENT_IMAGE_TAG: v25.2.0
+          PYFLUENT_CODEGEN_SKIP_BUILTIN_SETTINGS: 1
 
       - name: Print 25.2 Fluent version info
         run: |
           cat src/ansys/fluent/core/generated/fluent_version_252.py
           python -c "from ansys.fluent.core.generated.solver.settings_252 import SHASH; print(f'SETTINGS_HASH = {SHASH}')"
 
+      - name: Cache 26.1 API Code
+        uses: actions/cache@v4
+        id: cache-261-api-code
+        with:
+          path:
+            src/ansys/fluent/core/generated
+            doc/source/api/core/meshing/tui
+            doc/source/api/core/meshing/datamodel
+            doc/source/api/core/solver/tui
+            doc/source/api/core/solver/datamodel
+          key: API-Code-v${{ env.API_CODE_CACHE }}-${{ steps.version.outputs.PYFLUENT_VERSION }}-${{ vars.FLUENT_STABLE_IMAGE_DEV }}-${{ hashFiles('src/ansys/fluent/core/codegen/**') }}
+          restore-keys: API-Code-v${{ env.API_CODE_CACHE }}-${{ steps.version.outputs.PYFLUENT_VERSION }}-${{ vars.FLUENT_STABLE_IMAGE_DEV }}
+
+      - name: Pull 26.1 Fluent docker image
+        if: steps.cache-261-api-code.outputs.cache-hit != 'true'
+        run: make docker-pull
+        env:
+          FLUENT_IMAGE_TAG: ${{ vars.FLUENT_STABLE_IMAGE_DEV }}
+
+      - name: Run 26.1 API codegen
+        if: steps.cache-261-api-code.outputs.cache-hit != 'true'
+        run: make api-codegen
+        env:
+          FLUENT_IMAGE_TAG: ${{ vars.FLUENT_STABLE_IMAGE_DEV }}
+
+      - name: Print 26.1 Fluent version info
+        run: |
+          cat src/ansys/fluent/core/generated/fluent_version_261.py
+          python -c "from ansys.fluent.core.generated.solver.settings_261 import SHASH; print(f'SETTINGS_HASH = {SHASH}')"
+
       - name: Install again after codegen
         run: |
           rm -rf dist
@@ -525,9 +556,11 @@ jobs:
             version: 251
           - image-tag: v25.2.0
             version: 252
+          - image-tag: v26.1.0
+            version: 261
     timeout-minutes: 60
     env:
-        FLUENT_IMAGE_TAG: ${{ matrix.version == 252 && vars.FLUENT_STABLE_IMAGE_DEV || matrix.image-tag }}
+        FLUENT_IMAGE_TAG: ${{ matrix.version == 261 && vars.FLUENT_STABLE_IMAGE_DEV || matrix.image-tag }}
 
     steps:
 
@@ -579,8 +612,8 @@ jobs:
         if: always()
         run: make cleanup-previous-docker-containers
 
-      - name: Upload 25.1 Coverage Artifacts
-        if: matrix.image-tag == 'v25.1.0'
+      - name: Upload 25.2 Coverage Artifacts
+        if: matrix.image-tag == 'v25.2.0'
         uses: actions/upload-artifact@v4
         with:
           name: coverage_report

.github/workflows/doc-build-release.yml

@@ -9,7 +9,7 @@ on:
 
 env:
   DOCUMENTATION_CNAME: 'fluent.docs.pyansys.com'
-  DOC_DEPLOYMENT_IMAGE_TAG: v25.1.0
+  DOC_DEPLOYMENT_IMAGE_TAG: v25.2.0
   ANSYSLMD_LICENSE_FILE: ${{ format('1055@{0}', secrets.LICENSE_SERVER) }}
   PYFLUENT_TIMEOUT_FORCE_EXIT: 30
   PYFLUENT_LAUNCH_CONTAINER: 1

.github/workflows/execute-examples-weekly.yml

@@ -25,10 +25,10 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - image-tag: v25.1.0
-            version: 251
           - image-tag: v25.2.0
             version: 252
+          - image-tag: v26.1.0
+            version: 261
 
     steps:
       - uses: actions/checkout@v4

.github/workflows/force-update-stable-Fluent-image-version.yml

@@ -11,8 +11,8 @@ concurrency:
 env:
   ANSYSLMD_LICENSE_FILE: ${{ format('1055@{0}', secrets.LICENSE_SERVER) }}
   MAIN_PYTHON_VERSION: '3.10'
-  FLUENT_IMAGE_TAG: v25.2.0
-  FLUENT_VERSION: 252
+  FLUENT_IMAGE_TAG: v26.1.0
+  FLUENT_VERSION: 261
 
 jobs:
   test:

.github/workflows/test-run-custom.yml

@@ -38,6 +38,10 @@ jobs:
             version: 242
           - image-tag: v25.1.0
             version: 251
+          - image-tag: v25.2.0
+            version: 252
+          - image-tag: v26.1.0
+            version: 261
 
     steps:
       - uses: actions/checkout@v4
@@ -75,13 +79,13 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Pull Fluent docker image
-        if: matrix.image-tag != 'v25.1.0'
+        if: matrix.image-tag != 'v26.1.0'
         run: make docker-pull
         env:
           FLUENT_IMAGE_TAG: ${{ matrix.image-tag }}
 
       - name: Pull Fluent docker image dev
-        if: matrix.image-tag == 'v25.1.0'
+        if: matrix.image-tag == 'v26.1.0'
         run: make docker-pull
         env:
           FLUENT_IMAGE_TAG: ${{ vars.FLUENT_STABLE_IMAGE_DEV }}

.github/workflows/test-run-dev-version-nightly.yml

@@ -13,8 +13,8 @@ env:
   PYFLUENT_WATCHDOG_DEBUG: 'OFF'
   PYFLUENT_HIDE_LOG_SECRETS: 1
   MAIN_PYTHON_VERSION: '3.10'
-  FLUENT_IMAGE_TAG: v25.2.0
-  FLUENT_VERSION: 252
+  FLUENT_IMAGE_TAG: v26.1.0
+  FLUENT_VERSION: 261
 
 jobs:
   test:
@@ -105,5 +105,5 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Delete 25.1 Fluent docker image
+      - name: Clean up Fluent docker image
         run: docker rmi -f ghcr.io/ansys/pyfluent:${{ env.FLUENT_IMAGE_TAG }}

.github/workflows/test-run-nightly.yml

@@ -13,8 +13,8 @@ env:
   PYFLUENT_WATCHDOG_DEBUG: 'OFF'
   PYFLUENT_HIDE_LOG_SECRETS: 1
   MAIN_PYTHON_VERSION: '3.10'
-  FLUENT_IMAGE_TAG: v25.1.0
-  FLUENT_VERSION: 251
+  FLUENT_IMAGE_TAG: v25.2.0
+  FLUENT_VERSION: 252
 
 jobs:
   test:

.github/workflows/test-run-old-versions-weekly.yml

@@ -161,6 +161,10 @@ jobs:
             version: 232
           - image-tag: v24.1.0
             version: 241
+          - image-tag: v24.2.0
+            version: 242
+          - image-tag: v25.1.0
+            version: 251
 
     steps:
 

.github/workflows/test-run-solvermode-weekly.yml

@@ -12,7 +12,7 @@ env:
   PYFLUENT_LOGGING: 'DEBUG'
   PYFLUENT_WATCHDOG_DEBUG: 'OFF'
   PYFLUENT_HIDE_LOG_SECRETS: 1
-  FLUENT_IMAGE_TAG: v25.1.0
+  FLUENT_IMAGE_TAG: v25.2.0
   MAIN_PYTHON_VERSION: '3.10'
 
 jobs:
@@ -55,15 +55,15 @@ jobs:
           username: ansys-bot
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Pull 25.1 Fluent docker image
+      - name: Pull 25.2 Fluent docker image
         run: make docker-pull
         env:
           FLUENT_IMAGE_TAG: ${{ vars.FLUENT_STABLE_IMAGE_DEV }}
 
-      - name: Run 25.1 API codegen
+      - name: Run 25.2 API codegen
         run: make api-codegen
 
-      - name: Print 25.1 Fluent version info
+      - name: Print 25.2 Fluent version info
         run: |
           cat src/ansys/fluent/core/generated/fluent_version_251.py
           python -c "from ansys.fluent.core.generated.solver.settings_251 import SHASH; print(f'SETTINGS_HASH = {SHASH}')"
@@ -73,7 +73,7 @@ jobs:
           rm -rf dist
           make install > /dev/null
 
-      - name: 25.1 Unit Testing
+      - name: 25.2 Unit Testing
         run: |
           make install-test
           make unittest-solvermode-251

.github/workflows/test-run-wo-codegen-weekly.yml

@@ -81,6 +81,10 @@ jobs:
             version: 242
           - image-tag: v25.1.0
             version: 251
+          - image-tag: v25.2.0
+            version: 252
+          - image-tag: v26.1.0
+            version: 261
 
     steps:
 

Makefile

@@ -63,6 +63,11 @@ unittest-dev-252:
 	@sudo rm -rf /home/ansys/Documents/ansys_fluent_core_examples/*
 	@python -m pytest --fluent-version=25.2 $(PYTESTEXTRA) || python -m pytest --fluent-version=25.2 $(PYTESTRERUN)
 
+unittest-dev-261:
+	@echo "Running unittests"
+	@sudo rm -rf /home/ansys/Documents/ansys_fluent_core_examples/*
+	@python -m pytest --fluent-version=26.1 $(PYTESTEXTRA) || python -m pytest --fluent-version=26.1 $(PYTESTRERUN)
+
 unittest-all-222:
 	@echo "Running all unittests"
 	@sudo rm -rf /home/ansys/Downloads/ansys_fluent_core_examples/*
@@ -143,6 +148,21 @@ unittest-all-252-no-codegen:
 	@sudo rm -rf /home/ansys/Documents/ansys_fluent_core_examples/*
 	@python -m pytest --nightly --fluent-version=25.2 -m "not codegen_required" $(PYTESTEXTRA) || python -m pytest --nightly --fluent-version=25.2 -m "not codegen_required" $(PYTESTRERUN)
 
+unittest-all-261:
+	@echo "Running all unittests"
+	@sudo rm -rf /home/ansys/Documents/ansys_fluent_core_examples/*
+	@python -m pytest --nightly --fluent-version=26.1 $(PYTESTEXTRA) || python -m pytest --nightly --fluent-version=26.1 $(PYTESTRERUN)
+
+unittest-solvermode-261:
+	@echo "Running all unittests"
+	@sudo rm -rf /home/ansys/Documents/ansys_fluent_core_examples/*
+	@python -m pytest --fluent-version=26.1 --solvermode $(PYTESTEXTRA) || python -m pytest --fluent-version=26.1 --solvermode $(PYTESTRERUN)
+
+unittest-all-261-no-codegen:
+	@echo "Running all unittests"
+	@sudo rm -rf /home/ansys/Documents/ansys_fluent_core_examples/*
+	@python -m pytest --nightly --fluent-version=26.1 -m "not codegen_required" $(PYTESTEXTRA) || python -m pytest --nightly --fluent-version=26.1 -m "not codegen_required" $(PYTESTRERUN)
+
 api-codegen:
 	@echo "Running API codegen"
 	@python -m venv env

doc/source/conf.py

@@ -80,6 +80,8 @@
     "ansys.fluent.core.generated.solver.settings_241.",
     "ansys.fluent.core.generated.solver.settings_242.",
     "ansys.fluent.core.generated.solver.settings_251.",
+    "ansys.fluent.core.generated.solver.settings_252.",
+    "ansys.fluent.core.generated.solver.settings_261.",
     "ansys.fluent.core.services.batch_ops.BatchOps.__init__",
 }
 

doc/source/getting_started/faqs.rst

@@ -141,9 +141,9 @@ all PyFluent packages in a Python *virtual environment*:
 Which version of Python should you use?
 ---------------------------------------
 PyFluent supports Python 3.10 through Python 3.12 on Windows and Linux. Python
-3.10 is shipped with Ansys 2023 R2 and later. For example, in a 2025 R1 Windows
+3.10 is shipped with Ansys 2023 R2 and later. For example, in a 2025 R2 Windows
 installation, the executable file Python 3.10 is typically located at:
-``C:\Program Files\ANSYS Inc\v251\commonfiles\CPython\3_10\winx64\Release\python.exe``.
+``C:\Program Files\ANSYS Inc\v252\commonfiles\CPython\3_10\winx64\Release\python.exe``.
 If you're using Python from Ansys installation, make sure to install PyFluent
 within a Python virtual environment to prevent any possible conflicts with
 Ansys Python packages.

doc/source/getting_started/installation.rst

@@ -88,16 +88,16 @@ All versions of PyFluent support Fluent 2022 R2 and later.
 
 PyFluent uses an environment variable to locate your Ansys installation.
 
-On Windows, the Ansys installer sets the environment variable. For instance, the Ansys 2025 R1
-installer sets the ``AWP_ROOT251`` environment variable to point to ``C:\Program Files\ANSYS Inc\v251``
+On Windows, the Ansys installer sets the environment variable. For instance, the Ansys 2025 R2
+installer sets the ``AWP_ROOT252`` environment variable to point to ``C:\Program Files\ANSYS Inc\v252``
 if you accept the default installation location.
 
 **On Linux, the environment variable is not set automatically.** It can be set for the
 current user in the current shell session as follows:
 
 .. code:: console
 
-    export AWP_ROOT251=/usr/ansys_inc/v251
+    export AWP_ROOT252=/usr/ansys_inc/v252
 
 For this variable to persist between different shell sessions for the current user, the same
 export command can instead be added to the user's ``~/.profile`` file.

doc/source/user_guide/session/launching_ansys_fluent.rst

@@ -168,7 +168,7 @@ scheduler using the ``sbatch`` command:
    #
    # Activate your favorite Python environment
    #
-   export AWP_ROOT251=/apps/ansys_inc/v251
+   export AWP_ROOT252=/apps/ansys_inc/v252
    . ./venv/bin/activate
    #
    # Run a PyFluent script
@@ -351,15 +351,15 @@ Connect to a Fluent container running inside WSL from a Windows host
 
 .. code:: console
 
-    docker run -it -p 63084:63084 -v /mnt/d/testing:/testing -e "ANSYSLMD_LICENSE_FILE=<license file or server>" -e "REMOTING_PORTS=63084/portspan=2" ghcr.io/ansys/pyfluent:v25.1.0 3ddp -gu -sifile=/testing/server.txt
-    /ansys_inc/v251/fluent/fluent25.1.0/bin/fluent -r25.1.0 3ddp -gu -sifile=/testing/server.txt
+    docker run -it -p 63084:63084 -v /mnt/d/testing:/testing -e "ANSYSLMD_LICENSE_FILE=<license file or server>" -e "REMOTING_PORTS=63084/portspan=2" ghcr.io/ansys/pyfluent:v25.2.0 3ddp -gu -sifile=/testing/server.txt
+    /ansys_inc/v252/fluent/fluent25.2.0/bin/fluent -r25.2.0 3ddp -gu -sifile=/testing/server.txt
 
 2. Connect from PyFluent running on a Windows host
 
 .. code:: python
 
   >>> import ansys.fluent.core as pyfluent
-  >>> solver = pyfluent.connect_to_fluent(ip="localhost", port=63084, password=<password written in D:\testing\server.txt>)
+  >>> solver = pyfluent.connect_to_fluent(ip="localhost", port=63084, password=<password written `server.txt`>)
 
 
 Connecting to a Fluent container running inside Linux from a Windows host

src/ansys/fluent/core/session_meshing.pyi

@@ -20,21 +20,21 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
-from ansys.fluent.core.generated.datamodel_251.meshing import Root as meshing_root
-from ansys.fluent.core.generated.datamodel_251.meshing_utilities import (
+from ansys.fluent.core.generated.datamodel_252.meshing import Root as meshing_root
+from ansys.fluent.core.generated.datamodel_252.meshing_utilities import (
     Root as meshing_utilities_root,
 )
-from ansys.fluent.core.generated.datamodel_251.part_management import (
+from ansys.fluent.core.generated.datamodel_252.part_management import (
     Root as partmanagement_root,
 )
-from ansys.fluent.core.generated.datamodel_251.pm_file_management import (
+from ansys.fluent.core.generated.datamodel_252.pm_file_management import (
     Root as pmfilemanagement_root,
 )
-from ansys.fluent.core.generated.datamodel_251.preferences import (
+from ansys.fluent.core.generated.datamodel_252.preferences import (
     Root as preferences_root,
 )
-from ansys.fluent.core.generated.datamodel_251.workflow import Root as workflow_root
-from ansys.fluent.core.generated.meshing.tui_251 import main_menu
+from ansys.fluent.core.generated.datamodel_252.workflow import Root as workflow_root
+from ansys.fluent.core.generated.meshing.tui_252 import main_menu
 
 class Meshing:
     @property