> -----Original Message----- > [mailto:development-bounces+tvaneerd=rim....@qt-project.org] On Behalf > Of Ziller Eike > > On 23 Nov 2012, at 11:20, Peter Hartmann <phartm...@rim.com> wrote: > > >> Do you intend to upgrade this version of Qt that's installed on the > device > >> without upgrading the applications using it? > > > > yes, e.g. device updates and 3rd party apps in the store. > > Well, even for device updates & 3rd party apps, the most sensible thing > IMO is to provide a "beta period" for the device update to 3rd party > app developers, so they can test their applications against the new > versions and possibly update their application in the store. > I mean there *are* behavior changes in every new version of Qt, also > patch releases, that's what "bugfixing" is about ;). That might affect > one or the other application in a negative way, in addition to the one > or other bug that unfortunately gets introduced. > > Regarding "can you run an application that was compiled against x.y.z > also with x.y.(z-1)", I think that is simply a question of defining a > policy. Also for shared Qt versions on devices, it is just a policy > against which Qt version applications should be compiled to run on the > wanted number of device installations. >
I *think* the plan is: - there will be a single version of Qt 4.8.x shared by all apps on the device. - that single version may be upgraded by RIM at some time (ie 4.8.y, doubtfully 4.9.z, not Qt5) - there would be extensive in-house testing of the upgrade, including testing with a wide array of 3rd party apps - Apps downloaded from AppWorld would not / could not upgrade the global installed Qt - (apps can always ship their own "captive" version of Qt if they want, but that tends to just waste space) Eventually there should be a 5.x version of Qt, but that would be with a major platform upgrade - breaking BC not just with Qt, but with the BB libs, and at which time both 4.8.x and 5.x would co-exist on the device (as well as coexisting versions of BB libs). CAVEAT: I'm not in charge of this, and things can and do always change, but I think that's the general plan Does that make sense to everyone? Tony --------------------------------------------------------------------- This transmission (including any attachments) may contain confidential information, privileged material (including material protected by the solicitor-client or other applicable privileges), or constitute non-public information. Any use of this information by anyone other than the intended recipient is prohibited. If you have received this transmission in error, please immediately reply to the sender and delete this information from your system. Use, dissemination, distribution, or reproduction of this transmission by unintended recipients is not authorized and may be unlawful. _______________________________________________ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
