In this segment with Amy Timmermann, DAU's Learning Asset Manager for CON 3900V and 3910, the CON Certification Exam Prep Courses, she talks about the the changes to occur, starting 1 Oct 2023, to include the new length of CON 3900, and the new pre-requisite - if you are planning on taking CON 3990V, the CON Certification Exam, this is a must video/podcast to listen to.
A few good links for more info on CON 3900V, CON 3910, and CON 3990:  
CON 3900V: https://icatalog.dau.edu/onlinecatalog/courses.aspx?crs_id=12539
CON 3910:  https://icatalog.dau.edu/onlinecatalog/courses.aspx?crs_id=12833
CON 3990V: https://icatalog.dau.edu/onlinecatalog/courses.aspx?crs_id=12540
DAU's Contracting BtB webpage:  https://www.dau.edu/functional-areas/contracting
DAU's iCatalog:   https://icatalog.dau.edu/onlinecatalog/tabnavlas.aspx
UPDATED Sep 2023 CON Webinar Series on CON 3900V, 3910 and 3990:  https://cdnapisec.kaltura.com/index.php/extwidget/preview/partner_id/2203981/uiconf_id/39997971%20%20/entry_id/1_lykau29g/embed/dynamic
Contracting Community of Practice:  https://www.dau.edu/cop/contracting  

If you are watching this video on DAU Media, but rather watch on YouTube, go to https://www.youtube.com/channel/UCbF8yqm-r_M5czw5teb0PsA
If you want to listen in on Apple Podcasts:  https://podcasts.apple.com/us/podcast/contracting-conversations/id1621567225