Oracledb 3.0.0 is available on Github as of ~2 hours ago, however I do not yet see it on Pypi.
https://pypi.org/project/oracledb/#history
I apologize if it is planned on being added later today and my report is simply to early; I just wanted to remind you in case it was mistakenly not added to Pypi.
Thank you.
@cjbj @anthony-tuininga