UPDATE: CentOS announced on their twitter account that CentOS 8 will be released on Sept. 24th.
IBM's Red Hat Enterprise Linux 8 (and I'm not sure if Red Hat likes me putting IBM in front of it or not) was released on May 7th, 2019. I write this on Sept. 11th, 2019 and CentOS 8 still isn't out. RHEL 7.7 came out on August 6, 2019. In an effort to be transparent, CentOS does have wiki pages for both Building_8 and Building_7 where they enumerate the various steps they have to go through to get the final product out the door.
Up until early August they were making good progress on CentOS 8. In fact they had made it to the last step which was titled, "Release work" which had a Started date of "YYYY-MM-DD", an Ended date of "YYYY-MM-DD", and a Status "NOT STARTED YET". That was fine for a while and then almost a month had passed with the NOT STARTED YET status. If you are like me, when they completed every step but the very last, you are thinking that the GA release will be available Real-Soon-Now but after waiting a month, not so much.
It was also obvious that CentOS had started work on the 7.7 update and the status indicators for that have progressed nicely but they still have a ways to go. Of course one of the hold ups is that they have quite a few arches to support (more than Red Hat themselves) even though their most used platform (x86_64) had its Continuous Release (CR) repository populated and released on August 30th, 2019. There is still a ways to go on 7.7 but they are generally much quicker with the point update releases.
Users started complaining on the CentOS Devel mailing list harkening back to an earlier time in CentOS' history where they lagged way behind. There were lots of responses to that thread, many thanking the CentOS developers for all of their hard work, some name calling, and a lot of back and forth with plenty of repetition. Everyone understands that it takes a while for a major new release to come out and it'll be done when it is good and ready... however... the main complaint was that the development team (which long-time CentOS developer Johnny Hughes Jr. said numbered 3 people) wasn't being transparent enough given the fact that the wiki pages hadn't been updated in some time. Johnny Hughes finally explained the reason 8 has stalled:
WRT CentOS 8 .. it has taken a back seat to 7.7.1908. Millions of users already use CentOS Linux 7. Those people needs updates.
That totally makes sense, doesn't it? Everyone was happy with that answer... and I updated the Building_8 wiki page to reflect that by changing the status to, "Deferred for 7.7 work" and adding a note that said, "2019-09-10 According to this thread, work was stopped on CentOS 8 after upstream released 7.7. Since so many more users have CentOS 7.x in production, and no one has 8 yet, priority has been given to the 7.7 update... and once it is done, work will continue on 8."
Someone asked JH Jr. if they could use some help and he said that building the packages was easy enough and there wasn't really a way to speed it up... but testing all of the packages, especially all of the various arches, was a way the greater community could help. That was a poor summary so if interested I encourage you to read the full thread.
While I'm definitely looking forward to the release of CentOS 8, I understand the 7.7 release takes priority and I now better know what to expect. As has been said so many times, thanks for all of the hard work devs, it is appreciated.