Re: [Xen-devel] ANNOUNCE: Xen 3.0.5 rename to 3.1.0

["Daniel P. Berrange" <berrange@xxxxxxxxxx>]

On Wed, May 02, 2007 at 02:43:21PM -0700, Brendan Cully wrote:
> On Wednesday, 02 May 2007 at 22:38, Daniel P. Berrange wrote:
> > On Wed, May 02, 2007 at 11:33:04PM +0200, C?dric Schieli wrote:
> > > Shouldn't the various library sonames (libblktap, libxenctrl, libxenguest,
> > > libxutil, libxenstore) also be bumped to 3.1 ?
> > 
> > Why ? Doing that would uneccessarily break any apps built against them.
> > As a general rule library so versions should not be artificially tied
> > to the software release number. A new software release does not imply
> > the library ABI has been changed - so versions should only be changed
> > when there is an actual ABI breakage to deal with.
> 
> Apps should only break if the major number changes. Bumping the minor
> should be fairly harmless. It usually just indicates that the library
> has new functions (but is backward-compatible with anything in the same
> major with a smaller minor).

Agreed - the .so's are using 3 digits, the first two of which are used
by linker. So bumping 3.0.0  -> 3.0.1 would be fine, but the suggested
change of 3.0.0 -> 3.1.0 would break things.

Dan.
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