We offer a Parse Server Migration Guide that should offer a good first read when looking at how to migrate.
For most deployments, the main work is refactoring Cloud Code. Parse Server moved away from chained JavaScript promises to async/await
. In addition to the guide mentioned above, there are numerous resources available online about how JavaScript async/await
works and what to consider.
Then there may be some changes in terms of APIs and methods, which usually make up the smaller part of the migration effort.
In general, we suggest to take a look at the change log from the current version (2.8.4) up to the target version (4.3.0) to see what which changes may impact your deployment specifically.