The first edition of the
Language Atlas of China places the Hakka dialects spoken in
Haifeng and
Lufeng into the
Xin–Hui cluster () of the
Yue–Tai subgroup () of
Hakka. In the second edition, it is given its own subgroup known as the
Hai–Lu subgroup () separate from the Yue–Tai subgroup. Chang Song-hing and Zhuang Chusheng propose that it should be grouped as the
Hai–Lu cluster () of the
Mei–Shao subgroup (). ==Distribution==