Compatibility among CPE versions

VERSIONS	1.1	2.2	2.3 WFN	2.3 URI	2.3 FS
1.1	Yes	Depends of count of parts	Depends of count of parts	Depends of count of parts	Depends of count of parts
2.2	Depends of characters	Yes	Yes	Yes	Yes
2.3 WFN	Depends of characters	Depends of characters	Yes	Yes	Yes
2.3 URI	Depends of characters	Depends of characters	Yes	Yes	Yes
2.3 FS	Depends of characters	Depends of characters	Yes	Yes	Yes