Hokkien
Hokkien has one of the most diverse phoneme inventories among Chinese varieties, with more consonants than Standard Mandarin or Cantonese. Vowels are more-or-less similar to that of Standard Mandarin. Hokkien varieties retain many pronunciations that are no longer found in other Chinese varieties. These include the retention of the /t/ initial, which is now /ts/ (Pinyin 'zh') in Mandarin (e.g. 'bamboo' Zhu  is tik, but zhu in Mandarin), having disappeared before the 6th century in other Chinese varieties.
What do Hokkein varieties retain that are no longer found in other Chinese varieties?
many pronunciations
Hokkien varieties retain many pronunciations that are no longer found in other Chinese varieties.
other Chinese varieties