update AppUpdate library to 4.3.2
update AppUpdate library to 4.3.1
add export library file
update AppUpdate library to 4.2.8 opt the upgrade logic to ensure the consistency of android and ios
update AppUpdate library to 4.2.7 opt flutter mini sdk version
update AppUpdate library to 4.2.5
update AppUpdate library to 4.2.2
update AppUpdate library to 4.0.0
opt iOS upgrade dialog opt iOS download url
update Flutter to Null-Safety
update Flutter to Null-Safety
update renderings
publish package