The English Wikipedia page on the Type 094-class SSBN is terribly out-of-date.
According to my sources which includes the Chinese Wikipedia page (not Baidu Baike) on the Type 094-class SSBN, the Type 094-class SSBN has at least two variants - The original Type 094, and the improved Type 094A.
This diagram by H.I. Sutton summarizes the difference between these two variants well.
View attachment 90496
In short, the Type 094A has a higher turtleback that is used to house SLBMs compared to the original Type 094.
This means while the original Type 094 could only carry JL-2 with a 7200 kilometer-range, the improved Type 094A is capable of carrying the larger JL-2A, which is the missile you mentioned that has a range of 11200 kilometers.
As a sidenote, the Chinese Wikipedia page (not Baidu Baike) on the Type 094-class SSBN also mentioned that the Type 094A can also carry the newer JL-3, which has an even greater range of at least 12000-13000 kilometers.