Separate Pillow versions for Python 3.9/3.10+

Author: mathoudebine

requirements.txt

@@ -11,7 +11,10 @@ uptime~=3.0.1          # For System Uptime
 requests~=2.32.5       # HTTP library
 ping3~=5.1.5           # ICMP ping implementation using raw socket
 pyinstaller~=6.16.0    # bundles a Python application and all its dependencies into a single package
-Pillow~=12.0.0         # Image generation
+
+# Image generation
+Pillow~=11.3.0; python_version < "3.10"   # For Python 3.9, only Pillow 11.x is supported
+Pillow~=12.0.0; python_version >= "3.10"  # For Python 3.10+, any Pillow 12.x is fine
 
 # Efficient image serialization
 numpy~=2.0.2; python_version < "3.10"   # For Python 3.9, only numpy 2.0.x is supported