Improvements have been made to Experience Cloud Audience Publishing. You can now publish audiences (segments) and make them available six times faster, reducing the current latency time from 48 hours to approximately 8 hours, and possibly faster, depending on traffic and segment size.
Additionally, the number of segments that can be published at one time has been increased from 20 to 75 per report suite.
For more information, see Publish segments to the Experience Cloud in Analytics help.
Also, read about Audiences in Experience Cloud help for information about the Audience Library.