CentOS - Dec 2020 - What are the differences between CentOS Linux and CentOS Stream?

Good day from Singapore,

What are the differences between CentOS Linux and CentOS Stream?

At the moment, I only know that CentOS 8 support will end on 31 December
2021 while Red Hat Inc will shift its focus to CentOS Stream.

Is CentOS Stream going to be very similar to Fedora Linux, shipping with
the latest Linux Kernel like 5.10.1?

I am looking forward to hearing from you.

Thank you.


-----BEGIN EMAIL SIGNATURE-----

The Gospel for all Targeted Individuals (TIs):

[The New York Times] Microwave Weapons Are Prime Suspect in Ills of
U.S. Embassy Workers

Link:
https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html

********************************************************************************************

Singaporean Targeted Individual Mr. Turritopsis Dohrnii Teo En Ming's
Academic
Qualifications as at 14 Feb 2019 and refugee seeking attempts at the
United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug
2019) and Australia (25 Dec 2019 to 9 Jan 2020):

[1] https://tdtemcerts.wordpress.com/

[2] https://tdtemcerts.blogspot.sg/

[3] https://www.scribd.com/user/270125049/Teo-En-Ming

-----END EMAIL SIGNATURE-----

As a bystander who just the other day saw this, no.  It doesn't appear that
it will be a bleeding edge kernel.  Just builds of the next kernel expected
to be in the next 8.X release.  So you are getting updated features
earlier, but maybe before all the known issues are resolved to a state
ready to be released in the main RH build.

For my work use of Red Hat, this all doesn't matter.  We license and pay
for many copies of RHEL.  It is only for home use that I've historically
used CentOS.  And even then I can get a personal license of RHEL.

On Tue, Dec 15, 2020 at 9:29 AM Turritopsis Dohrnii Teo En Ming <
teoenming.dec2020 at gmail.com> wrote:
> Good day from Singapore,
>
> What are the differences between CentOS Linux and CentOS Stream?
>
> At the moment, I only know that CentOS 8 support will end on 31 December
> 2021 while Red Hat Inc will shift its focus to CentOS Stream.
>
> Is CentOS Stream going to be very similar to Fedora Linux, shipping with
> the latest Linux Kernel like 5.10.1?
>
> I am looking forward to hearing from you.
>
> Thank you.
>
>
> -----BEGIN EMAIL SIGNATURE-----
>
> The Gospel for all Targeted Individuals (TIs):
>
> [The New York Times] Microwave Weapons Are Prime Suspect in Ills of
> U.S. Embassy Workers
>
> Link:
> https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html
>
>
>
********************************************************************************************
>
> Singaporean Targeted Individual Mr. Turritopsis Dohrnii Teo En Ming's
> Academic
> Qualifications as at 14 Feb 2019 and refugee seeking attempts at the
> United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug
> 2019) and Australia (25 Dec 2019 to 9 Jan 2020):
>
> [1] https://tdtemcerts.wordpress.com/
>
> [2] https://tdtemcerts.blogspot.sg/
>
> [3] https://www.scribd.com/user/270125049/Teo-En-Ming
>
> -----END EMAIL SIGNATURE-----
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> https://lists.centos.org/mailman/listinfo/centos
>

On 15/12/2020 15:29, Turritopsis Dohrnii Teo En Ming
wrote:
> Good day from Singapore,
> 
> What are the differences between CentOS Linux and CentOS Stream?
> 
> At the moment, I only know that CentOS 8 support will end on 31 December
> 2021 while Red Hat Inc will shift its focus to CentOS Stream.
> 
> Is CentOS Stream going to be very similar to Fedora Linux, shipping with
> the latest Linux Kernel like 5.10.1?
> 
No. Stream kernel updates will be updates on the (current) path from 
RHEL8.3 -> RHEL8.4 so the base kernel will always be 4.18.0 (for Stream 
tracking RHEL8)
> I am looking forward to hearing from you.
> 
> Thank you.
> 
> 
Some notable differences:

1. 5 Years support versus 10 years support on RHEL/CentOS Linux.

2. Kernel updates break 3rd party out-of-tree kernel drivers.

3. 'dnf downgrade foo' doesn't work as only latest/one copy of each 
package in Stream repository so no opportunity to downgrade/roll back 
broken packages.

On Tue, Dec 15, 2020 at 11:29:51PM +0800, Turritopsis Dohrnii Teo En Ming
wrote:
> Good day from Singapore,
> What are the differences between CentOS Linux and CentOS Stream?
CentOS Linux rebuilds packages after they are available from Red Hat as
errata or as minor release updates.

CentOS Stream will have updates approved for future RHEL minor releases
shipped as soon as they meet the criteria.
> At the moment, I only know that CentOS 8 support will end on 31 December
> 2021 while Red Hat Inc will shift its focus to CentOS Stream.
Yes.

> Is CentOS Stream going to be very similar to Fedora Linux, shipping with
> the latest Linux Kernel like 5.10.1?
No. It is going to be very similar to Red Hat Enterprise Linux, shipping
with kernel builds approved to ship in RHEL.

If you want a faster-moving kernel, Fedora CoreOS or Fedora Server might be
a good choice for you.

> I am looking forward to hearing from you.
Also see more at

* https://blog.centos.org/2020/12/centos-stream-is-continuous-delivery/
* https://blog.centos.org/2020/12/how-rhel-is-made/

-- 
Matthew Miller
<mattdm at fedoraproject.org>
Fedora Project Leader