Ok, i cant believe how bad Apple have handled this, lets recap (this will probably be a wall of text so, yeah)
In the beginning of January Apple release the first dev and pubic betas of 10.11.4, no freeze issues seems to have been reported on this beta
Two weeks later, 25th of Januari i think, Apple released the second beta and if i remember correctly this is where the freeze issues started, i noticed it first on my iMac 2009 and a couple of days later on my 15" rMBP 2015, i updated to the beta on both hardware because i wanted to make sure all my apps and extensions worked on 10.11.4 betas before Apple released the GA. After several days of my Macs freezing during use in Safari i started to file bug reports to Apple, including sysdiag and crash reports.
When the third beta in the beginning of February did not fix this issue i wrote about the issue on Apples developer forum. That thread got deleted and i got a message from an admin saying that the betas was under NDA and should not be spoken about on a semi-public forum. I know about the NDA on developer betas but was surprised that the admin told me the NDA also applied to the public betas, i thought it cant be right, what would the point of a public beta be then if the community cant report on a major bug, sure we can still file bug reports to Apple but how could we possible figure out if it was a widespread bug or just a bug that only affected one or a couple of individuals. Apple(!), don't throw NDA on public betas AND tell all your community admins to not delete bug report threads. Technically i was not allowed to even make this thread because 10.11.4 was still in beta when i created it, thats insane. A developer beta i can understand the NDA and TOS but on the Public Betas Apple should really free up the terms. I wasn't even allowed to take about it on Apples own developer forum without my threads getting deleted.
I think i created this thread just before PB4 was released because i was fed up with the frequent freezes and Apples poorly management of the threads discussing this issue. At this point i had filed maybe 10 bug reports and feedbacks to Apple, i talked to several "community managers" about this issue and how incredible locked Apple discussion about beta bugs and issues are, it fell on deaf ears though, every level, every stage and every instance i was in touch with Apple the only respons one can get is "We have received your request and will forward it.........", every human at Apple felt like a robot, seems like they have been through a rigorous seminar at Apple on how to interact with customers, developers and community members. Every respons i got might just aswell have been a bot.
I still wanted to know if this was a widespread issue on the betas and if someone else have had this issue but there was no way of knowing since Apple deleted every single thread people created about this issue so none of us that was affected by this could discuss the issue, if there was a fix it would be impossible to know since most of the threads got deleted before even reaching 2-3 replies and those threads that Apple didn't bother to remove did basically not say anything.
What frustrated me the most, i spent 2 month with this issue, in middle-late February the reports started to come in about the issue on non Apple owned forums and other sites, several reported about the issue here on MacRumors in the El Capitan bug report thread, Apple started to allow threads about it on their community forum and the issue started to look even more widespread for each passing day, this was in late February, over 1 month before the GA version, but still, there was NO effective way to interact with Apple and the "community manager" and everyone else on Apples support side seemed to have no intention or did not take this issue seriously, one time when i spoke with a developer manager his attitude was VERY frustrating, when i tried to tell Apple to take this issue serious the response i´ve got every single time was basically "Yeah, it is a beta release, ofcourse it has some bugs, it even tell you to expect them in FAQ", i wanted to scream at them "OFCOURSE i know and expect bugs in the beta releases, thats why i am reporting the bugs, so you can fix them before the GA releases........" but no, no human i spoke to at Apple cared, they basically blocked this issue, i wouldn't even be surprised if the developers didn't even get the reports or even a ticket about the issue when all the manager had that poor attitude to bug reports, and such a serious bug report nonetheless...
For a month, from late February to middle of Mars i did my best to try to get Apple to understand, at this point (middle of Mars), every response i got was "Re-install El Capitan", "Reset PRAM/NVRAM", "Replace the logic bord", they did want to understand that this issue started for all of that had this freeze, it started with 10.11.4, when dual booting my iMac back to 10.11.3 the freeze issue was gone, it was a bug in 10.11.4 but no, Apple refused to take it seriously.
My horror when Apple released 10.11.4 to the public even though the support forum now was filled with reports from people having the freeze issue on the previous betas. 10.11.4 SHOULD NEVER HAVE BEEN RELEASED, over 6, i repeat: 6 betas hade this freeze issue.
So, the upcomming days after the release of 10.11.4 to the public, Apples discussion forum literally exploded with non-beta users getting the very same freeze bug that us beta testers had reported on for 2 month, seriously, 2 month and Apple still release 10.11.4 without even addressing the bug or even accepting that the bug was there. Twitter exploded too, both normal Twitter posts and Twitter posts targeted at Apples Twitter support account was now filled with people experiencing the freeze issue.
This is incredible annoying and frustrating, there seems to be a huge internal wall at Apple, it seems like the developers at Apple is locked into a bunker without any access to the outside world an no bug reports is reaching them. They dont seem to have a system to block a release of OS X if the community is reporting serious and critical bugs, OS X gets released anyway AND Apple actively blocked and removed all the discussions in January and February on their own developer forum so if someone would look at the forum there would be know evidence at all about a critical bug and since the "community manager" and "feedback managers" (humans) had that stupid attitude to this critical bug report they really blocked this issue from really reaching the developers. The issue did not look widespread at all at a first glance in the forums but since the release of the GA and we now are allowed to speak about the release without it having a NDA or TOS, now the issue looks more widespread than anyone of us on the developer beta could have imagined in January.
Apple missed a critical bug, they release an OS X version with a critical bug to the public without listening to us non-Apple developers, now the bug is affecting alot of people, hurting the Apple brand, making devices basically useless, especially in a professional environment, Twitter and Apple forum is now filled with people reporting this issue, as i said before, 10.11.4 should never, EVER have been released.
The communication between beta testers and Apple is HORRIBLE, for such a huge company that is insane how bad the communication and discussion between Apple and beta users and developers are.
Whats the point of Apple even having the PB program when the PB users arent even allowed to take about critical bugs in their own developer forum AND Apple ignore those PB users reports to and release a broken OS X version anyway.
There is alot more to say about Apples handling about this, i didn't really have time to really explain the respons from Apple and the fixes Apple should make, especially to the PB program, i need to go but i can explain some of the stuff better when i come back.
So, the bug seems so be fixed for alot of the devs and PB users in 10.11.5 PB4 BUT that is not released to the public, so basically this issue have existed from January to May, about 4 month, such a critical bug CANT be allowed to exist for so long, Apple really need to change the way they are handling reports and how the community managers handles the interactions between Apple and us.