OS Build Numbering

[MrEd]

How does MS determine its OS build numbers?
I notice Versions 1803 and 1809 both use the 17000 series, all other versions have a logical progression.
Will 1903 be the 18000 series?

 

[Trouble]

Not sure if this answers your question but this is the latest insider build

As you can see the Build number has already advanced into the 18290 numbers but this is still based on the 1809 version
So once the 19H1 round of Insider Builds flip to reflect what will I believe ultimately become 1903, I'm not certain but I would expect the Build numbers to remain in the 18000s range.
I believe this has been consistent going back some versions, but....
Bottom line....
Who knows.

 

[Bighorn]

How does MS determine its OS build numbers?
I notice Versions 1803 and 1809 both use the 17000 series, all other versions have a logical progression.
Will 1903 be the 18000 series?

Version 1809 of the Insider Preview edition I am running had Build 18252 then went to Build 18282 and now is on Build 18290 so there is some progression in the number, just that we don't see a consecutive numbering, some are skipped over for whatever reason. The 1809 is consistent with 1703, 1709 and 1803 Version numbering or about every 6 months or twice a year. The current release or RTM edition is Version 1809 and as you have noted is in the range of 17xxx, currently 17763.168.

 

[MrEd]

I was just interested to know why 1803 and 1809 both used 17xxx.
Surely 1809 would’ve started with 18xxx thus being consistent with all other releases?

 

[Trouble]

The "18" in both these two past RTMs are for the year "2018" and the "03 and "09" are for March and September respectively.
I don't think the version numbering has any relationship to the Build numbering.
I assume they have some meaning or …..
Maybe they just have one of those giant Lotto air machines that just blow out random numbers and that's what we see.

 

[dustywoodworker]

Thank you, Gentlemen. I am relieved as I thought I was the only one who did not understand.

 

[Grizzly]

I think Trouble is right.
If one remembers, the same happened with the first and second Windows 10: 10240 (1507) and 10586 (1511). After that it went to 1607.14393, 1703.15063, 1709.16299, 1803.17134 and last but not least 1809.17763 . When MS went to a calendar release description, one would expect the 1809 to be as 1809.18xxx but not 17763.
I think that is what the TO 'MrEd' thought about.
Since MS changes the description again next year (from April/October update to 19H1,19H2 etc) one might wonder, how far the numbers will go. Maybe they will go much higher as they went in 2018 as MS did not work well on those releases (why would they otherwise had to be pulled?). Only time will tell......

 

[MrEd]

God (aka MS) works in mysterious ways...