It seemed that Windows 10 build 17133 was going to be blessed as a 1803 update, but this plan was derailed. Although the version was passed on to Windows Insiders on the preview version, an action that in the past indicated that a version was ready for production, it turns out that it was not possible for the release. she had a bug causing blue screens of death.
Microsoft probably could have solved the situation with an incremental update, but for some reason it was not. Instead, we have a new version, 17134. This version is identical to 17133 except that it fixes the particular crash problem. The fast ring insiders now have the build, and it should spill quickly into the Slow Ring and Release Preview. If all goes well, the version will then be used by the usual Windows users on the stable publishing channel.
When will this happen? It's less clear. It was expected that 17133 would be expelled in this month's Patch; with the delay, Tuesday's fix would be the logical occasion, although if Microsoft is happy that the build is working, there is really no need to wait.
The other unknown is what the release will be called. In addition to their build number, all major Windows 10 updates all have a brand name, such as Anniversary Update and Creators Update, and a version name, which is a four-digit number consisting of the last two digits of the file. year and the two digits of the month that the construction was made.
Build 17133 had the 1803 version name, because it was done in March of this year. The construction 17134, made in April of this year is … again 1803, and now the names have no meaning. It's a shame; Microsoft would probably do well to slide the builds up in April (and October) because, in the current state of things, the company is about to ship "Windows 10 version 2003" in March or April 2020, and you can just guarantee that the software thinks somehow that it works on Windows Server 2003. The 2004 version would definitely avoid this risk.
Brand names have already been announced several months before the release. It did not happen this time. We would like brand names to disappear – biannual Windows updates should be routine events, not marketing opportunities – but there are rumors that this version will have a brand name. For a while, previews of the next version of Windows (that of October) gave the name of "Spring Creators Update" in 1803. More recently, Microsoft staff used the term Windows 10 April 2018 Update which is much more superficial.