fix: Support non-Microsoft implementations of the EWS API with non-standard verrsion numbers

Author: ecederstrand

exchangelib/version.py

@@ -25,8 +25,6 @@ def __init__(self, major_version, minor_version, major_build=0, minor_build=0):
         self.minor_version = minor_version
         self.major_build = major_build
         self.minor_build = minor_build
-        if major_version < 8:
-            raise ValueError(f"Exchange major versions below 8 don't support EWS ({self})")
 
     @classmethod
     def from_xml(cls, elem):

tests/test_build.py

@@ -5,8 +5,6 @@
 
 class BuildTest(TimedTestCase):
     def test_magic(self):
-        with self.assertRaises(ValueError):
-            Build(7, 0)
         self.assertEqual(str(Build(9, 8, 7, 6)), "9.8.7.6")
         hash(Build(9, 8, 7, 6))