v5.0.0 (Godot 4)

Breaking changes

Changed external variables to be requested in runtime instead of set beforehand.
This means now there are two new methods to define the callbacks (on_external_variable_fetch, on_external_variable_update) and
the external variable methods set_external_variable and get_external_variable were removed.

Added

• External variable fetching/updating callbacks
• Editor player now supports external variables

Thanks

Thanks @ThePat02 for the discussion that led to the external variable proxy implementation.