diff --git a/.github/workflows/pytests-upstream.yml b/.github/workflows/pytests-upstream.yml
index 1abcbdfd..a94ff3d0 100644
--- a/.github/workflows/pytests-upstream.yml
+++ b/.github/workflows/pytests-upstream.yml
@@ -74,7 +74,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        python-version: ["3.9", "3.10"]
+        python-version: ["3.9", "3.10", "3.11", "3.12"]
         os: ["ubuntu-latest", "macos-latest", "windows-latest"]
 
     steps:
@@ -200,7 +200,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        python-version: ["3.9", "3.10"]
+        python-version: ["3.9", "3.10", "3.11", "3.12"]
         os: ["ubuntu-latest", "macos-latest", "windows-latest"]
 
     steps:
diff --git a/ci/requirements/py3.10-all-pinned.yml b/ci/requirements/py3.10-all-pinned.yml
index ee6d7aca..713805e1 100644
--- a/ci/requirements/py3.10-all-pinned.yml
+++ b/ci/requirements/py3.10-all-pinned.yml
@@ -8,7 +8,7 @@ dependencies:
   - aiohttp = 3.10.5
   - decorator = 5.1.1
   - erddapy = 2.2.3
-  - fsspec = 2024.9.0
+  - fsspec = 2024.6.1
   - netCDF4 = 1.7.1
   - packaging = 24.1
   - requests = 2.32.3
diff --git a/ci/requirements/py3.10-core-pinned.yml b/ci/requirements/py3.10-core-pinned.yml
index c6894fda..928ee174 100644
--- a/ci/requirements/py3.10-core-pinned.yml
+++ b/ci/requirements/py3.10-core-pinned.yml
@@ -8,7 +8,7 @@ dependencies:
   - aiohttp = 3.10.5
   - decorator = 5.1.1
   - erddapy = 2.2.3
-  - fsspec = 2024.9.0
+  - fsspec = 2024.6.1
   - netCDF4 = 1.7.1
   - packaging = 24.1
   - requests = 2.32.3
diff --git a/ci/requirements/py3.11-all-free.yml b/ci/requirements/py3.11-all-free.yml
new file mode 100644
index 00000000..37847acd
--- /dev/null
+++ b/ci/requirements/py3.11-all-free.yml
@@ -0,0 +1,61 @@
+name: argopy-tests
+channels:
+  - conda-forge
+dependencies:
+  - python = 3.11
+
+# CORE:
+  - aiohttp
+  - decorator
+  - erddapy
+  - fsspec
+  - netCDF4
+  - packaging
+  - requests
+  - scipy
+  - toolz
+  - xarray < 2024.3 # while https://github.com/pydata/xarray/issues/8909 is not solved
+
+# EXT.UTIL:
+  - boto3
+  - gsw
+  - s3fs > 2023.12.12
+  - tqdm
+  - zarr
+
+# EXT.PERF:
+  - dask
+  - distributed
+  - h5netcdf
+  - pyarrow
+
+# EXT.PLOT:
+  - IPython
+  - cartopy
+  - ipykernel
+  - ipywidgets
+  - matplotlib
+  - pyproj
+  - seaborn
+
+# DEV:
+  - aiofiles
+  - black
+  - bottleneck
+  - cfgrib
+  - cftime
+  - codespell
+  - flake8
+  - numpy
+  - pandas
+  - pip
+  - pytest
+  - pytest-cov
+  - pytest-env
+  - pytest-localftpserver
+  - setuptools
+#  - sphinx
+
+# PIP:
+  - pip:
+      - pytest-reportlog
diff --git a/ci/requirements/py3.11-core-free.yml b/ci/requirements/py3.11-core-free.yml
new file mode 100644
index 00000000..c68b1a5f
--- /dev/null
+++ b/ci/requirements/py3.11-core-free.yml
@@ -0,0 +1,61 @@
+name: argopy-tests
+channels:
+  - conda-forge
+dependencies:
+  - python = 3.11
+
+# CORE:
+  - aiohttp
+  - decorator
+  - erddapy
+  - fsspec
+  - netCDF4
+  - packaging
+  - requests
+  - scipy
+  - toolz
+  - xarray < 2024.3 # while https://github.com/pydata/xarray/issues/8909 is not solved
+
+# EXT.UTIL:
+#  - boto3
+#  - gsw
+#  - s3fs
+#  - tqdm
+#  - zarr
+
+# EXT.PERF:
+#  - dask
+#  - distributed
+#  - h5netcdf
+#  - pyarrow
+
+# EXT.PLOT:
+#  - IPython
+#  - cartopy
+#  - ipykernel
+#  - ipywidgets
+#  - matplotlib
+#  - pyproj
+#  - seaborn
+
+# DEV:
+  - aiofiles
+  - black
+  - bottleneck
+  - cfgrib
+  - cftime
+  - codespell
+  - flake8
+  - numpy
+  - pandas
+  - pip
+  - pytest
+  - pytest-cov
+  - pytest-env
+  - pytest-localftpserver
+  - setuptools
+#  - sphinx
+
+# PIP:
+  - pip:
+      - pytest-reportlog
\ No newline at end of file
diff --git a/ci/requirements/py3.12-all-free.yml b/ci/requirements/py3.12-all-free.yml
new file mode 100644
index 00000000..3f07fb01
--- /dev/null
+++ b/ci/requirements/py3.12-all-free.yml
@@ -0,0 +1,61 @@
+name: argopy-tests
+channels:
+  - conda-forge
+dependencies:
+  - python = 3.12
+
+# CORE:
+  - aiohttp
+  - decorator
+  - erddapy
+  - fsspec
+  - netCDF4
+  - packaging
+  - requests
+  - scipy
+  - toolz
+  - xarray < 2024.3 # while https://github.com/pydata/xarray/issues/8909 is not solved
+
+# EXT.UTIL:
+  - boto3
+  - gsw
+  - s3fs > 2023.12.12
+  - tqdm
+  - zarr
+
+# EXT.PERF:
+  - dask
+  - distributed
+  - h5netcdf
+  - pyarrow
+
+# EXT.PLOT:
+  - IPython
+  - cartopy
+  - ipykernel
+  - ipywidgets
+  - matplotlib
+  - pyproj
+  - seaborn
+
+# DEV:
+  - aiofiles
+  - black
+  - bottleneck
+  - cfgrib
+  - cftime
+  - codespell
+  - flake8
+  - numpy
+  - pandas
+  - pip
+  - pytest
+  - pytest-cov
+  - pytest-env
+  - pytest-localftpserver
+  - setuptools
+#  - sphinx
+
+# PIP:
+  - pip:
+      - pytest-reportlog
diff --git a/ci/requirements/py3.12-core-free.yml b/ci/requirements/py3.12-core-free.yml
new file mode 100644
index 00000000..d37ccf14
--- /dev/null
+++ b/ci/requirements/py3.12-core-free.yml
@@ -0,0 +1,61 @@
+name: argopy-tests
+channels:
+  - conda-forge
+dependencies:
+  - python = 3.12
+
+# CORE:
+  - aiohttp
+  - decorator
+  - erddapy
+  - fsspec
+  - netCDF4
+  - packaging
+  - requests
+  - scipy
+  - toolz
+  - xarray < 2024.3 # while https://github.com/pydata/xarray/issues/8909 is not solved
+
+# EXT.UTIL:
+#  - boto3
+#  - gsw
+#  - s3fs
+#  - tqdm
+#  - zarr
+
+# EXT.PERF:
+#  - dask
+#  - distributed
+#  - h5netcdf
+#  - pyarrow
+
+# EXT.PLOT:
+#  - IPython
+#  - cartopy
+#  - ipykernel
+#  - ipywidgets
+#  - matplotlib
+#  - pyproj
+#  - seaborn
+
+# DEV:
+  - aiofiles
+  - black
+  - bottleneck
+  - cfgrib
+  - cftime
+  - codespell
+  - flake8
+  - numpy
+  - pandas
+  - pip
+  - pytest
+  - pytest-cov
+  - pytest-env
+  - pytest-localftpserver
+  - setuptools
+#  - sphinx
+
+# PIP:
+  - pip:
+      - pytest-reportlog
\ No newline at end of file
diff --git a/ci/requirements/py3.9-all-pinned.yml b/ci/requirements/py3.9-all-pinned.yml
index 51ea375b..d4f25c13 100644
--- a/ci/requirements/py3.9-all-pinned.yml
+++ b/ci/requirements/py3.9-all-pinned.yml
@@ -8,7 +8,7 @@ dependencies:
   - aiohttp = 3.10.5
   - decorator = 5.1.1
   - erddapy = 2.2.0
-  - fsspec = 2024.9.0
+  - fsspec = 2024.6.1
   - netCDF4 = 1.7.1
   - packaging = 24.1
   - requests = 2.32.3
diff --git a/ci/requirements/py3.9-core-pinned.yml b/ci/requirements/py3.9-core-pinned.yml
index fb0ff4ef..2e983707 100644
--- a/ci/requirements/py3.9-core-pinned.yml
+++ b/ci/requirements/py3.9-core-pinned.yml
@@ -8,7 +8,7 @@ dependencies:
   - aiohttp = 3.10.5
   - decorator = 5.1.1
   - erddapy = 2.2.0
-  - fsspec = 2024.9.0
+  - fsspec = 2024.6.1
   - netCDF4 = 1.7.1
   - packaging = 24.1
   - requests = 2.32.3