diff --git a/news/+0b9c605e.feature.md b/news/+0b9c605e.feature.md
new file mode 100644
index 0000000..4707422
--- /dev/null
+++ b/news/+0b9c605e.feature.md
@@ -0,0 +1,3 @@
+Add Plone 6.3 to the test matrix.
+Test this on Python 3.10-3.14.
+@mauritsvanrees
diff --git a/src/plone/meta/config_package.py b/src/plone/meta/config_package.py
index ffffdfa..e19f467 100755
--- a/src/plone/meta/config_package.py
+++ b/src/plone/meta/config_package.py
@@ -34,6 +34,7 @@
 
 # List all python versions we want to test a given Plone version against
 TOX_TEST_MATRIX = {
+    "6.3": ["3.14", "3.13", "3.12", "3.11", "3.10"],
     "6.2": ["3.14", "3.13", "3.12", "3.11", "3.10"],
     "6.1": ["3.13", "3.12", "3.11", "3.10"],
     "6.0": ["3.13", "3.12", "3.11", "3.10", "3.9"],