How can I ensure my plugin is compatible with both Kotlin versions k1 and k2 across different IntelliJ IDEA releases from 2022.3 to 2024.3?

Technically not a “new” plugin, but a dedicated release.
e.g. you can use release numbers like 1.0-223 for plugin supporting 2022.3+ and another release 1.0-242 for plugin built against 2024.2+.