[j-nsp] Understanding versioning of service and regular releases

[Paul Goyette]

For releases prior to 10.4, the service release numbering
space was independant of the R-release space.  So you had
to rely on the creation date.

Beginning with 11.1, a service release is built "on top 
of" the preceeding S or R release.  The set of fixes 
increases in the following sequence:

11.1R1 --> 11.1S1 --> 11.1S1.1 --> 11.1R2 --> 11.1S2 ...
                             *

(* Multiple service releases between any two R releases are
distinguished by an additional sequential number.)

Due to some internal issues, the 10.4 numbering scheme got
confused, and we had:

10.4R1 --> 10.4R2 --> 10.4S1 --> 10.4S1.2 --> 10.4R3 -->
    10.4S3 --> 10.4S3.2 --> 10.4R4 ...

Beginning with 10.4R3, we got back on track...


We realize that the numbering scheme is rather confusing,
and we are working to make it more clear.



> -----Original Message-----
> From: juniper-nsp-bounces at puck.nether.net [mailto:juniper-nsp-
> bounces at puck.nether.net] On Behalf Of Tore Anderson
> Sent: Friday, June 03, 2011 2:58 AM
> To: juniper-nsp at puck.nether.net
> Subject: [j-nsp] Understanding versioning of service and regular
> releases
> 
> On 2011-05-27, JUNOS 11.1S2 was released for the EX. So this release is
> a couple of weeks newer than JUNOS 11.1R2.3. However,
> <https://www.juniper.net/customers/csc/software/junos_software_versions
> .jsp>
> says 11.1R2.3 is the recommended version for the EX 4500 in VC
> configurations.
> 
> I'm a bit confused on how to interpret the version numbers of the
> service releases. Should I consider junos_software_versions.jsp as the
> accurate source of information (in other words that 11.1S2 is a
> back-port of fixes alrady found 11.1R2.3 to the 11.1R1 branch), like
> so,
> in incremental order of preference:
> 
> 1) 11.1R1.10
> 2) 11.1S1 (i.e. 11.1R1.10 + critical fixes)
> 3) 11.1S2 (i.e. 11.1S1 + more critical fixes)
> 4) 11.1R2.3
> 
> Or, is the page outdated and the release dates is the thing I should
> look at when determining which version to use:
> 
> 1) 11.1R1.10
> 2) 11.1S1 (i.e. 11.1R1.10 + critical fixes)
> 3) 11.1R2.3
> 4) 11.1S2 (i.e. 11.1R2.3 + critical fixes)
> 
> BR,
> --
> Tore Anderson
> Redpill Linpro AS - http://www.redpill-linpro.com
> Tel: +47 21 54 41 27
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