IMPORTANT: v3.0.0 is not backwards compatible. Back up your Home Assistant Core configuration if you need to downgrade to a 2.x.x release. Installing this pre-release will migrate the integration config to the new inverter ID list.
Release v3.0.0 adds the ability to configure a list of modbus device IDs to support sequential and non-sequential ID configurations, or a combination of both.
These types of configurations are now possible:
List: 1,2,3,4 or 1,3,10
Range: 1-4 becomes 1,2,3,4
Combination: 1-3,5,10 becomes 1,2,3,5,10
Configurations from any 2.x.x version will be migrated to the new list format. Example: a configuration with number of inverters "3" and inverter address "1" will become 1,2,3 in this release.
Full Changelog: v2.4.20...v3.0.0-pre.1