CentOS - Dec 2020 - Questions about Stream

On Thu, Dec 17, 2020 at 03:26:50PM +0300, Andrey wrote:
> Consider the scenario: a bug or security issue found in both Stream
> and current RHEL. It was fixed in RHEL in a few days. How fast it
> will be fixed in Stream? Obviously, it needs some time to port the
> fix to newer version of package. Days or months?
I think you're pre-supposing that many packages in Stream will be ahead of
RHEL. That's not the case. In most situations here, the package version in
Stream will be identical to the one in RHEL. In cases where Stream is ahead,
in some cases the security fix will be include moving the RHEL package ahead
as well to match. In cases where that's too big of a change, the Stream
package will still need to be updated so that a regression doesn't happen in
the next RHEL minor.



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

On 12/17/20 12:11 PM, Matthew Miller wrote:
> On Thu, Dec 17, 2020 at 03:26:50PM +0300, Andrey wrote:
>> Consider the scenario: a bug or security issue found in both Stream
>> and current RHEL. It was fixed in RHEL in a few days. How fast it
>> will be fixed in Stream? Obviously, it needs some time to port the
>> fix to newer version of package. Days or months?
> 
> I think you're pre-supposing that many packages in Stream will be ahead
of
> RHEL. That's not the case. In most situations here, the package version
in
> Stream will be identical to the one in RHEL. In cases where Stream is
ahead,
> in some cases the security fix will be include moving the RHEL package
ahead
> as well to match. In cases where that's too big of a change, the Stream
> package will still need to be updated so that a regression doesn't
happen in
> the next RHEL minor.
Adding to Matthew's point .. My reply was for things that are different
(as that is what you initially asked).  Some things will be and others
will not be.

But also on the positive side.. Many times though IF a Stream package is
newer, the upstream project that maintains the newer code will have
already rolled in the change (think a re-base of Gnome, LibreOffice or
some other package set). So there may be times when security fixes
actually happen first in Stream.  That will not be the goal or the
default situation, but it will from time to time happen on a re-base of
packages.