Jetpack Compose Material3 is released separately from the other Compose libraries and it is released from a different commit.
Compose Multiplatform libraries on the other hand are released at once from one commit.
It adds difficulties and requires manual checks/merges.
With the current strategy you can expect the Multiplatform release of a library in 1-3 month after the Jetpack Compose release.
We can't make auto releases of dev-versions and don't plan to solve this in the foreseeable future.