[bug?] delayed availability of new patch version

[rapus95]

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Sorry for disturbing in https://github.com/JuliaLang/juliaup/issues/397 I really thought it was due to 1.8.1 not available at all!

Yesterday I tried to update to 1.8.1 which wasn't possible since it wasn't available as a channel at all:

C:\Users\Aaron>juliaup list
 Channel          Version
------------------------------------
[...]
 1.7~x64          1.7.3+0.x64
 1.7~x86          1.7.3+0.x86
 1.8              1.8.0+0.x64
 1.8.0            1.8.0+0.x64
 1.8.0-beta1      1.8.0-beta1+0.x64
 1.8.0-beta1~x64  1.8.0-beta1+0.x64
 1.8.0-beta1~x86  1.8.0-beta1+0.x86
 1.8.0-beta3      1.8.0-beta3+0.x64
 1.8.0-beta3~x64  1.8.0-beta3+0.x64
 1.8.0-beta3~x86  1.8.0-beta3+0.x86
 1.8.0-rc1        1.8.0-rc1+0.x64
 1.8.0-rc1~x64    1.8.0-rc1+0.x64
 1.8.0-rc1~x86    1.8.0-rc1+0.x86
 1.8.0-rc3        1.8.0-rc3+0.x64
 1.8.0-rc3~x64    1.8.0-rc3+0.x64
 1.8.0-rc3~x86    1.8.0-rc3+0.x86
 1.8.0-rc4        1.8.0-rc4+0.x64
 1.8.0-rc4~x64    1.8.0-rc4+0.x64
 1.8.0-rc4~x86    1.8.0-rc4+0.x86
 1.8.0~x64        1.8.0+0.x64
 1.8.0~x86        1.8.0+0.x86
 1.8~x64          1.8.0+0.x64
 1.8~x86          1.8.0+0.x86
 1~x64            1.8.0+0.x64
 1~x86            1.8.0+0.x86
 beta             1.8.0+0.x64
 beta~x64         1.8.0+0.x64
 beta~x86         1.8.0+0.x86
 lts              1.6.7+0.x64
 lts~x64          1.6.7+0.x64
 lts~x86          1.6.7+0.x86
 rc               1.8.0+0.x64
 rc~x64           1.8.0+0.x64
 rc~x86           1.8.0+0.x86
 release          1.8.0+0.x64
 release~x64      1.8.0+0.x64
 release~x86      1.8.0+0.x86

C:\Users\Aaron>juliaup self update
No updates available.

Today I tried again, and it still didn't show a 1.8.1 channel. Only after updating juliaup itself, the 1.8.1 channel became available. Is it intended or a bug that it took almost a week for the new patch version of julia to become available?