Re: [Xen-devel] (release) versioning

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 06.05.15 at 09:21, <wei.liu2@xxxxxxxxxx> wrote:
> On Tue, May 05, 2015 at 04:54:01PM +0100, Jan Beulich wrote:
>> All,
>> 
>> on the hackathon we also discussed possibly changing the versioning
>> of Xen. The main rationale for the proposal is that (just like in many
>> other software projects) version numbers (in particular the major
>> one) currently don't really convey much information. The proposal is
>> to take gcc's new versioning scheme as a basis (i.e. I'm not going to
>> claim that the below is an exact copy of theirs): Major releases
>> always increment the major version number. Minor version 0 is
>> reserved to the development cycle, i.e. the first release in any
>> release series would be 5.1.0. RCs would be expressed through the
>> 3rd digit, i.e. the first RC of the currently being worked on release
>> would be 5.0.1 (there was some debate as to whether, despite
>> being redundant, to attach -rc1 to it to make clear this is not an
>> actual release).
>> 
>> So comparing current and new schemes things would go
>> 
>>      OLD                     NEW
>>      4.6-unstable            5.0-unstable (or 5.0.0)
>>      4.6.0-rc1                       5.0.1 (-rc1)
>>      ...                     ...
>>      4.6.0-rcN                       5.0.N (-rcN)
>>      4.6.0                   5.1.0
>>      4.6.1-rc1                       5.1.1 (-rc1)
>>      ...                     ...
>>      4.6.1                   5.2.0
>> 
>> This additionally has the benefit that taking only the numeric
>> part of the version string then would sort properly.
>> 
>> Any comments or alternative proposals are welcome.
> 
> One exceptional situation is that we had 4.1.6 and 4.1.6.1. I don't
> expect that to happen very often, but we do make mistakes in the release
> process and figure out we need to release a slightly updated version.
> How does this fit into the proposed scheme?

I think we would just attach a .1 to the previous version the same
way we did there, i.e. 5.2.0.1.

Jan


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