I guess as the resident Chaldean, Iāll answer your questions. Throughout the the years of Chaldean communion with Rome, Latinizations were introduced, and especially after Vatican II, plenty of Novus Ordo āreformsā changed many aspects of the Chaldean liturgy.
In the past couple decades, an effort started by +Patriarch Raphael Bidawid was to have a delatinized Chaldean liturgy, almost identical to that of the Assyrian Church of the East, with a uniform text throughout all dioceses. This reform was well underway to being implemented, and was approved by the Vatican in 2006. However, some bishops of the Holy Synod felt that some reforms were either too delatinizing, meaning they wanted to keep some latinizations, or that they were somewhat Nestorian. Nonetheless, the implementation of the Reformed Chaldean Mass was to start in all dioceses on January 6, 2007.
Disagreements among the bishops ensued one month before, as Bishop Sarhad of San Diego celebrated the Reformed Mass ahead of the date. His diocese is currently the only one completely using the reforms, but other dioceses did decide to use the translations adapting them to the post-Vatican II text. Some didnāt change anything at all. Patriarch Emeritus Emmanuel Delly didnāt make it too much of a priority, possibly to keep the peace. So the reforms were not completely implemented as intended.
Now with the newly enthroned Patriarch Louis-Raphael, the reformed liturgy has become a primary concern once again. Please pray for the Patriarch and the Chaldean Synod to come up with a solution for agreeing on one delatinized liturgy and a restoration of our holy traditions.
God Bless.