Pin TensorFlow to <2.16.

setup.cfg

@@ -32,10 +32,11 @@ classifiers =
 zip_safe = False
 packages = find:
 include_package_data = True
+# Note we don't yet support TensorFlow 2.16 or later due to Keras 3,
+# which does not support complex datatypes.
 install_requires = 
-	tensorflow>=2.4; sys_platform != 'darwin' or platform.machine != 'arm64'
-	tensorflow-macos>=2.4; sys_platform == 'darwin' and platform.machine == 'arm64'
-	tensorboard
+	tensorflow>=2.4,<2.16; sys_platform != 'darwin' or platform.machine != 'arm64'
+	tensorflow-macos>=2.4,<2.16; sys_platform == 'darwin' and platform.machine == 'arm64'
 	types-protobuf
 	numpy
 	typing_extensions
@@ -59,8 +60,8 @@ test =
 	nnaudio
 	numpy>=1.22
 	librosa>=0.9,<0.10
-	tensorflow>=2.4,<=2.17; sys_platform != 'darwin' or platform.machine != 'arm64'
-	tensorflow-macos>=2.4,<=2.17; sys_platform == 'darwin' and platform.machine == 'arm64'
+	tensorflow>=2.4,<2.16; sys_platform != 'darwin' or platform.machine != 'arm64'
+	tensorflow-macos>=2.4,<2.16; sys_platform == 'darwin' and platform.machine == 'arm64'
 
 [bumpversion:file:realbook/__init__.py]