diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ba481194..3faac415 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -39,7 +39,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ['ubuntu-latest', 'macos-latest', 'windows-latest']
-        python-version: ['3.9', '3.10']
+        python-version: ['3.9', '3.10', '3.11']
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python ${{ matrix.python-version }}
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 9ecbeeef..8bbbc317 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -4,21 +4,25 @@ Changelog
 
 dev
 ---
-New features
+Added
 
 * Improved the functionality of `merge_double_ended`, by adding a check that handles measurements missing in one channel while present in the other ([#171](https://github.com/dtscalibration/python-dts-calibration/pull/171))
+* Support for Python 3.11
 
-Bug fixes
+Fixed
 
 * Single-ended measurements with `fix_alpha` failed due to a bug introduced in v2.0.0 ([#173](https://github.com/dtscalibration/python-dts-calibration/pull/173)).
 
-Introduced limitations
+Changed
 
 * Standardized parameter names. Reduced the freedom in choosing parameter names and dimension names in favor of simplifying the code.
+* Requiring netcdf4 >= 1.6.4
+* Flox included in requirements to speed up resampling via xarray ([Xarray #5734](https://github.com/pydata/xarray/pull/5734)).
 
 Removed
 
 * Removed ds.resample_datastore() in favor of using xarray's resample function. See example notebook 2.
+* Removed support for Python 3.8
 
 2.0.0 (2023-05-24)
 ------------------
diff --git a/pyproject.toml b/pyproject.toml
index 1e896d88..b16f6333 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,7 +22,7 @@ name = "dtscalibration"
 description = "A Python package to load raw DTS files, perform a calibration, and plot the result."
 readme = "README.rst"
 license = "BSD-3-Clause"
-requires-python = ">=3.9, <3.11"
+requires-python = ">=3.9, <3.12"
 authors = [
   {email = "bdestombe@gmail.com"},
   {name = "Bas des Tombe, Bart Schilperoort"}
@@ -48,12 +48,13 @@ classifiers = [
     "Programming Language :: Python",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
     "Topic :: Utilities",
 ]
 dependencies = [
     "numpy",
     "xarray",
-    "pyyaml",
+    "pyyaml>=6.0.1",
     "xmltodict",
     "scipy",
     "patsy",  # a dependency of statsmodels
@@ -61,7 +62,8 @@ dependencies = [
     "dask",
     "toolz",
     "matplotlib",
-    "netCDF4<=1.5.8",
+    "netCDF4>=1.6.4",
+    "flox",
     "pandas",
 ]
 dynamic = ["version"]
@@ -117,7 +119,7 @@ build = [
 features = ["dev"]
 
 [[tool.hatch.envs.matrix_test.matrix]]
-python = ["3.9", "3.10"]
+python = ["3.9", "3.10", "3.11"]
 
 [tool.hatch.envs.matrix_test.scripts]
 test = ["pytest ./src/ ./tests/",]  # --doctest-modules
@@ -155,7 +157,8 @@ line-length = 88
 exclude = ["docs", "build"]
 # Allow unused variables when underscore-prefixed.
 dummy-variable-rgx = "^(_+|(_+[a-zA-Z0-9_]*[a-zA-Z0-9]+?))$"
-target-version = "py38"
+# Minimum supported Python version
+target-version = "py39"
 
 [tool.ruff.per-file-ignores]
 "tests/**" = ["D"]
diff --git a/src/dtscalibration/datastore.py b/src/dtscalibration/datastore.py
index 6e1b0579..156c8bab 100644
--- a/src/dtscalibration/datastore.py
+++ b/src/dtscalibration/datastore.py
@@ -662,6 +662,11 @@ def get_default_encoding(self, time_chunks_from_key=None):
                 v['dtype'] = 'int32'
                 # v['_FillValue'] = -9999  # Int does not support NaN
 
+            if np.issubdtype(self[k].dtype, str) or np.issubdtype(self[k].dtype, object):
+                # Compression not supported for variable length strings
+                # https://github.com/Unidata/netcdf4-python/issues/1205
+                v["zlib"] = False
+
         if time_chunks_from_key is not None:
             # obtain optimal chunk sizes in time and x dim
             if self[time_chunks_from_key].dims == ('x', 'time'):