This applies to:
* blender_version_min
* blender_version_max
* schema_version

The only field which still takes a full semantic version is the
`version` field itself.

See related discussion:
blender/blender#124885

@@ -537,3 +537,3 @@
 
 
-class SchemaVersionValidator(VersionValidator):
+class NonSemVerVersionValidator(VersionValidator):

@@ -540,0 +544,4 @@
+
+    @staticmethod
+    def is_version_string(version):
+        import re

@@ -540,0 +550,4 @@
+        # https://semver.org/#is-there-a-suggested-regular-expression-regex-to-check-a-semver-string
+
+        # Define the regex pattern for major.minor.patch (do not include any additional label).
+        pattern = r'^(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)'

@@ -540,0 +553,4 @@
+        pattern = r'^(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)'
+
+        # Make sure we match the entire string with the pattern.
+        return bool(re.fullmatch(pattern, version))

@@ -540,0 +567,4 @@
+
+        # Play safe and first guarantee that the string can be validated as a Version type
+        # which is expected throghout the rest of the code.
+        if super().validate(name=name, value=value, manifest=manifest):