How to announce the resignation of the primary school head teacher in the class group? Should the class group be dissolved?

When a student changes the head teacher, the class WeChat group must be dissolved in time. If the head teacher of a primary school resigns, a mass announcement can be made to explain the situation and hand over the affairs of the next head teacher.

For example, if a child is a teacher as a head teacher from grade one to grade three, but a new head teacher has changed since grade four, the original class WeChat group in grade three will be completely dissolved. The original class teacher dissolved the class WeChat group, which is a kind of support for the new class teacher. Don't leave the class WeChat group there because you can't bear it, and let the parents of the class WeChat group compare and judge the new and old class teachers, which is extremely unfavorable to the class management of the new class teacher.