Re: [Development] Minimum Deployment Platforms for 5.7 onwards?

[Robert Iakobashvili]

Yes, Gian, you are right.

iTunes delivers updates only to the users with appropriate iOS version.

And users with older iOS could be told to upgrade their hardware.
When they get a newer HW, they can get the updated software
in due course.

Thanks for clarifying it.

Kind regards,
Robert

On Fri, Jan 8, 2016 at 12:58 PM, Gian Maxera <gmax...@gmail.com> wrote:

> Dear Robert,
> are you sure the apple store force to keep compatibility of the very first
> iOS version ??
> From what I know, you can drop compatibility of older iOS version when you
> release a new version on the app store.
> And when someone install your app in an older phone, a popup appear
> warning the user that will be installed an older version because the last
> version of the app required a more recent iOS.
>
> Ciao,
> Gianluca.
>
>
> On 8 Jan 2016, at 10:50, Robert Iakobashvili <corobe...@gmail.com> wrote:
>
> Dear Jake,
> Unless app developers would like to drop their existing apps
> and rename/launch instead new apps,
> they're forced to keep compatibility with the very first iOS-version
> when their app was accepted to iTunes Store.
>
> So, dropping iOS-6 is a not issue for me, but dropping iOS-7 - yes.
>
> jm2c
>
> Kind regards,
> Robert
>
> On Fri, Jan 8, 2016 at 12:24 PM, Petroules Jake <
> jake.petrou...@theqtcompany.com> wrote:
>
>> We're raising the minimum OS X to 10.8 (2012). The iOS minimum is still 6
>> (also 2012), but I wonder whether we should also raise that a version (or
>> even two) considering its uniquely rapid upgrade cycle (frequently upgraded
>> hardware, less user ability to opt out of software updates).
>>
>> Bumping it to iOS 8 would also allow us to stop making static builds and
>> thus gain support for App Extensions.
>>
>> Thoughts? Tor Arne?
>> --
>> Jake Petroules - jake.petrou...@theqtcompany.com
>> Consulting Services Engineer - The Qt Company
>>
>> From: Development <development-boun...@qt-project.org> on behalf of
>> Turunen Tuukka <tuukka.turu...@theqtcompany.com>
>> Date: Thursday, January 7, 2016 at 11:18 PM
>> To: John Layt <jl...@kde.org>, "development@qt-project.org" <
>> development@qt-project.org>
>> Subject: Re: [Development] Minimum Deployment Platforms for 5.7 onwards?
>>
>>
>>
>> Hi John,
>>
>>
>>
>> This item was discussed at Qt Contributor’s Summit, please see session
>> notes: http://wiki.qt.io/QtCS2015_LTS
>>
>>
>>
>> For compilers this is also documented to the Qt Base change log:
>> http://code.qt.io/cgit/qt/qtbase.git/tree/dist/changes-5.5.1
>>
>>
>>
>> For 5.6 the current list of supported platforms and compilers is the
>> following: http://wiki.qt.io/Qt-5.6.0-tools-and-versions (note that we
>> are working to add OS X 10.11 to CI and fully support it)
>>
>>
>>
>> The idea is that by making Qt 5.6 LTS, we gain more freedom to drop older
>> (non-c++11) compilers as well as older platforms from Qt 5.7 and subsequent
>> versions. Those who have such older platforms to support, are recommended
>> to stay with the LTS version for a while. This approach allows us to move
>> faster for new features planned for future Qt releases.
>>
>>
>>
>> For application developers the documentation is often the best source to
>> find the list of supported platforms:
>> http://doc.qt.io/QtSupportedPlatforms/index.html This has not yet been
>> updated to 5.6, but will be before the final release.
>>
>>
>>
>> Yours,
>>
>>
>>
>>   Tuukka
>>
>>
>>
>>
>>
>>
>>
>> *From:* Development [mailto:development-boun...@qt-project.org
>> <development-boun...@qt-project.org>] *On Behalf Of *John Layt
>> *Sent:* keskiviikkona 30. joulukuuta 2015 20.43
>> *To:* development@qt-project.org
>> *Subject:* [Development] Minimum Deployment Platforms for 5.7 onwards?
>>
>>
>>
>> Hi,
>>
>> Can I just clarify what the minimum deployment platforms are for 5.7
>> onwards? That is, the lowest version of each OS that the code must still
>> run on? Far as I can tell it's something like:
>>
>> Windows 7 (or Vista?)
>>
>> Windows Embedded Compact 2013
>>
>> OSX 10.8
>>
>> iOS 5.0?
>>
>> Android 4.1 (API Level 16)?
>>
>> RHEL 6.6
>>
>> Ubuntu 11.10?
>>
>> There really should be a wiki page for this...
>>
>>
>>
>> Cheers!
>>
>> John.
>>
>> ___
>> Development mailing list
>> Development@qt-project.org
>> http://lists.qt-project.org/mailman/listinfo/development
>>
>>
> ___
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> http://lists.qt-project.org/mailman/listinfo/development
>
>
>
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Re: [Development] Minimum Deployment Platforms for 5.7 onwards?

[Turunen Tuukka]

Thanks John. The reason why we have been so far listing all the supported 
platforms is limitations of new platform versions until needed fixes are in 
place. Let's think how to best unify the way you propose to the wiki and doc 
supported platform pages. I do fully agree with you point, we need to make it 
very clear what is supported - especially now as the plan is to move a bit 
faster than before in the releases following LTS.

--
Tuukka

> Sze Howe Koh  kirjoitti 9.1.2016 kello 4.23:
> 
>> On 9 January 2016 at 01:05, John Layt  wrote:
>> 
>>> On 8 January 2016 at 07:18, Turunen Tuukka 
>>>  wrote:
>>> 
>>> 
>>> 
>>> Hi John,
>>> 
>>> 
>>> 
>>> This item was discussed at Qt Contributor’s Summit, please see session 
>>> notes: http://wiki.qt.io/QtCS2015_LTS
>>> 
>>> 
>>> 
>>> For compilers this is also documented to the Qt Base change log: 
>>> http://code.qt.io/cgit/qt/qtbase.git/tree/dist/changes-5.5.1
>>> 
>>> 
>>> 
>>> For 5.6 the current list of supported platforms and compilers is the 
>>> following: http://wiki.qt.io/Qt-5.6.0-tools-and-versions (note that we are 
>>> working to add OS X 10.11 to CI and fully support it)
>>> 
>>> 
>>> 
>>> The idea is that by making Qt 5.6 LTS, we gain more freedom to drop older 
>>> (non-c++11) compilers as well as older platforms from Qt 5.7 and subsequent 
>>> versions. Those who have such older platforms to support, are recommended 
>>> to stay with the LTS version for a while. This approach allows us to move 
>>> faster for new features planned for future Qt releases.
>>> 
>>> 
>>> 
>>> For application developers the documentation is often the best source to 
>>> find the list of supported platforms: 
>>> http://doc.qt.io/QtSupportedPlatforms/index.html This has not yet been 
>>> updated to 5.6, but will be before the final release.
>> 
>> 
>> Thanks Tuukka, but that's all a bit messy and hard to work out (not to 
>> mention the LTS email threads here which are impossible to follow). It makes 
>> my point really that there's no one canonical source telling us Qt 
>> contributors what platforms we need to design or code features for in the 
>> next Qt release, or for fixes in the last bug release. I need to know what 
>> versions of the platform API's I can use, not what's Official, Reference, 
>> CI, or Community supported.
>> 
>> I've taken the liberty of starting a wiki page to try summarise things the 
>> way I'd like to see them laid out:
>> 
>> https://wiki.qt.io/PlatformSupport
>> 
>> Feel free to edit or fix or move to a more appropriate place.
>> 
>> John.
> 
> Thanks for creating this summary, John. Would you be willing to merge
> your content into this existing page?
> https://wiki.qt.io/Supported_Platforms
> 
> 
> Regards,
> Sze-Howe style="border-top: 1px solid #aaabb6; margin-top: 30px;">
>
>
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Re: [Development] Minimum Deployment Platforms for 5.7 onwards?

[Robert Iakobashvili]

Dear Jake,
Unless app developers would like to drop their existing apps
and rename/launch instead new apps,
they're forced to keep compatibility with the very first iOS-version
when their app was accepted to iTunes Store.

So, dropping iOS-6 is a not issue for me, but dropping iOS-7 - yes.

jm2c

Kind regards,
Robert

On Fri, Jan 8, 2016 at 12:24 PM, Petroules Jake <
jake.petrou...@theqtcompany.com> wrote:

> We're raising the minimum OS X to 10.8 (2012). The iOS minimum is still 6
> (also 2012), but I wonder whether we should also raise that a version (or
> even two) considering its uniquely rapid upgrade cycle (frequently upgraded
> hardware, less user ability to opt out of software updates).
>
> Bumping it to iOS 8 would also allow us to stop making static builds and
> thus gain support for App Extensions.
>
> Thoughts? Tor Arne?
> --
> Jake Petroules - jake.petrou...@theqtcompany.com
> Consulting Services Engineer - The Qt Company
>
> From: Development <development-boun...@qt-project.org> on behalf of
> Turunen Tuukka <tuukka.turu...@theqtcompany.com>
> Date: Thursday, January 7, 2016 at 11:18 PM
> To: John Layt <jl...@kde.org>, "development@qt-project.org" <
> development@qt-project.org>
> Subject: Re: [Development] Minimum Deployment Platforms for 5.7 onwards?
>
>
>
> Hi John,
>
>
>
> This item was discussed at Qt Contributor’s Summit, please see session
> notes: http://wiki.qt.io/QtCS2015_LTS
>
>
>
> For compilers this is also documented to the Qt Base change log:
> http://code.qt.io/cgit/qt/qtbase.git/tree/dist/changes-5.5.1
>
>
>
> For 5.6 the current list of supported platforms and compilers is the
> following: http://wiki.qt.io/Qt-5.6.0-tools-and-versions (note that we
> are working to add OS X 10.11 to CI and fully support it)
>
>
>
> The idea is that by making Qt 5.6 LTS, we gain more freedom to drop older
> (non-c++11) compilers as well as older platforms from Qt 5.7 and subsequent
> versions. Those who have such older platforms to support, are recommended
> to stay with the LTS version for a while. This approach allows us to move
> faster for new features planned for future Qt releases.
>
>
>
> For application developers the documentation is often the best source to
> find the list of supported platforms:
> http://doc.qt.io/QtSupportedPlatforms/index.html This has not yet been
> updated to 5.6, but will be before the final release.
>
>
>
> Yours,
>
>
>
>   Tuukka
>
>
>
>
>
>
>
> *From:* Development [mailto:development-boun...@qt-project.org
> <development-boun...@qt-project.org>] *On Behalf Of *John Layt
> *Sent:* keskiviikkona 30. joulukuuta 2015 20.43
> *To:* development@qt-project.org
> *Subject:* [Development] Minimum Deployment Platforms for 5.7 onwards?
>
>
>
> Hi,
>
> Can I just clarify what the minimum deployment platforms are for 5.7
> onwards? That is, the lowest version of each OS that the code must still
> run on? Far as I can tell it's something like:
>
> Windows 7 (or Vista?)
>
> Windows Embedded Compact 2013
>
> OSX 10.8
>
> iOS 5.0?
>
> Android 4.1 (API Level 16)?
>
> RHEL 6.6
>
> Ubuntu 11.10?
>
> There really should be a wiki page for this...
>
>
>
> Cheers!
>
> John.
>
> ___
> Development mailing list
> Development@qt-project.org
> http://lists.qt-project.org/mailman/listinfo/development
>
>
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Re: [Development] Minimum Deployment Platforms for 5.7 onwards?

[Petroules Jake]

On Jan 8, 2016, at 2:50 AM, Robert Iakobashvili 
<corobe...@gmail.com<mailto:corobe...@gmail.com>> wrote:

Dear Jake,
Unless app developers would like to drop their existing apps
and rename/launch instead new apps,
they're forced to keep compatibility with the very first iOS-version
when their app was accepted to iTunes Store.

No you're not. Your users on that version (are you sure you even have any?) 
simply won't get the updated app requiring the new version, and will remain on 
their current version. There's no reason to rename your app or create a new 
iTunes Connect entry.

So, dropping iOS-6 is a not issue for me, but dropping iOS-7 - yes.

jm2c

Kind regards,
Robert

On Fri, Jan 8, 2016 at 12:24 PM, Petroules Jake 
<jake.petrou...@theqtcompany.com<mailto:jake.petrou...@theqtcompany.com>> wrote:
We're raising the minimum OS X to 10.8 (2012). The iOS minimum is still 6 (also 
2012), but I wonder whether we should also raise that a version (or even two) 
considering its uniquely rapid upgrade cycle (frequently upgraded hardware, 
less user ability to opt out of software updates).

Bumping it to iOS 8 would also allow us to stop making static builds and thus 
gain support for App Extensions.

Thoughts? Tor Arne?
--
Jake Petroules - 
jake.petrou...@theqtcompany.com<mailto:jake.petrou...@theqtcompany.com>
Consulting Services Engineer - The Qt Company

From: Development 
<development-boun...@qt-project.org<mailto:development-boun...@qt-project.org>> 
on behalf of Turunen Tuukka 
<tuukka.turu...@theqtcompany.com<mailto:tuukka.turu...@theqtcompany.com>>
Date: Thursday, January 7, 2016 at 11:18 PM
To: John Layt <jl...@kde.org<mailto:jl...@kde.org>>, 
"development@qt-project.org<mailto:development@qt-project.org>" 
<development@qt-project.org<mailto:development@qt-project.org>>
Subject: Re: [Development] Minimum Deployment Platforms for 5.7 onwards?


Hi John,

This item was discussed at Qt Contributor’s Summit, please see session notes: 
http://wiki.qt.io/QtCS2015_LTS

For compilers this is also documented to the Qt Base change log: 
http://code.qt.io/cgit/qt/qtbase.git/tree/dist/changes-5.5.1

For 5.6 the current list of supported platforms and compilers is the following: 
http://wiki.qt.io/Qt-5.6.0-tools-and-versions (note that we are working to add 
OS X 10.11 to CI and fully support it)

The idea is that by making Qt 5.6 LTS, we gain more freedom to drop older 
(non-c++11) compilers as well as older platforms from Qt 5.7 and subsequent 
versions. Those who have such older platforms to support, are recommended to 
stay with the LTS version for a while. This approach allows us to move faster 
for new features planned for future Qt releases.

For application developers the documentation is often the best source to find 
the list of supported platforms: 
http://doc.qt.io/QtSupportedPlatforms/index.html This has not yet been updated 
to 5.6, but will be before the final release.

Yours,

  Tuukka



From: Development [mailto:development-boun...@qt-project.org] On Behalf Of John 
Layt
Sent: keskiviikkona 30. joulukuuta 2015 20.43
To: development@qt-project.org<mailto:development@qt-project.org>
Subject: [Development] Minimum Deployment Platforms for 5.7 onwards?

Hi,
Can I just clarify what the minimum deployment platforms are for 5.7 onwards? 
That is, the lowest version of each OS that the code must still run on? Far as 
I can tell it's something like:
Windows 7 (or Vista?)
Windows Embedded Compact 2013
OSX 10.8
iOS 5.0?
Android 4.1 (API Level 16)?
RHEL 6.6
Ubuntu 11.10?
There really should be a wiki page for this...

Cheers!
John.

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--
Jake Petroules - 
jake.petrou...@theqtcompany.com<mailto:jake.petrou...@theqtcompany.com>
Consulting Services Engineer - The Qt Company

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Re: [Development] Minimum Deployment Platforms for 5.7 onwards?

[Gian Maxera]

Dear Robert,
are you sure the apple store force to keep compatibility of the very first iOS 
version ??
From what I know, you can drop compatibility of older iOS version when you 
release a new version on the app store.
And when someone install your app in an older phone, a popup appear warning the 
user that will be installed an older version because the last version of the 
app required a more recent iOS.

Ciao,
Gianluca.


> On 8 Jan 2016, at 10:50, Robert Iakobashvili <corobe...@gmail.com> wrote:
> 
> Dear Jake,
> Unless app developers would like to drop their existing apps
> and rename/launch instead new apps, 
> they're forced to keep compatibility with the very first iOS-version
> when their app was accepted to iTunes Store.
> 
> So, dropping iOS-6 is a not issue for me, but dropping iOS-7 - yes.
> 
> jm2c
> 
> Kind regards,
> Robert
> 
> On Fri, Jan 8, 2016 at 12:24 PM, Petroules Jake 
> <jake.petrou...@theqtcompany.com <mailto:jake.petrou...@theqtcompany.com>> 
> wrote:
> We're raising the minimum OS X to 10.8 (2012). The iOS minimum is still 6 
> (also 2012), but I wonder whether we should also raise that a version (or 
> even two) considering its uniquely rapid upgrade cycle (frequently upgraded 
> hardware, less user ability to opt out of software updates).
> 
> Bumping it to iOS 8 would also allow us to stop making static builds and thus 
> gain support for App Extensions.
> 
> Thoughts? Tor Arne?
> -- 
> Jake Petroules - jake.petrou...@theqtcompany.com 
> <mailto:jake.petrou...@theqtcompany.com>
> Consulting Services Engineer - The Qt Company
> 
> From: Development <development-boun...@qt-project.org 
> <mailto:development-boun...@qt-project.org>> on behalf of Turunen Tuukka 
> <tuukka.turu...@theqtcompany.com <mailto:tuukka.turu...@theqtcompany.com>>
> Date: Thursday, January 7, 2016 at 11:18 PM
> To: John Layt <jl...@kde.org <mailto:jl...@kde.org>>, 
> "development@qt-project.org <mailto:development@qt-project.org>" 
> <development@qt-project.org <mailto:development@qt-project.org>>
> Subject: Re: [Development] Minimum Deployment Platforms for 5.7 onwards?
> 
>  
> 
> Hi John,
> 
>  
> 
> This item was discussed at Qt Contributor’s Summit, please see session notes: 
> http://wiki.qt.io/QtCS2015_LTS <http://wiki.qt.io/QtCS2015_LTS>
>  
> 
> For compilers this is also documented to the Qt Base change log: 
> http://code.qt.io/cgit/qt/qtbase.git/tree/dist/changes-5.5.1 
> <http://code.qt.io/cgit/qt/qtbase.git/tree/dist/changes-5.5.1>
>   <>
> For 5.6 the current list of supported platforms and compilers is the 
> following: http://wiki.qt.io/Qt-5.6.0-tools-and-versions 
> <http://wiki.qt.io/Qt-5.6.0-tools-and-versions> (note that we are working to 
> add OS X 10.11 to CI and fully support it)
> 
>  
> 
> The idea is that by making Qt 5.6 LTS, we gain more freedom to drop older 
> (non-c++11) compilers as well as older platforms from Qt 5.7 and subsequent 
> versions. Those who have such older platforms to support, are recommended to 
> stay with the LTS version for a while. This approach allows us to move faster 
> for new features planned for future Qt releases.
> 
>  
> 
> For application developers the documentation is often the best source to find 
> the list of supported platforms: 
> http://doc.qt.io/QtSupportedPlatforms/index.html 
> <http://doc.qt.io/QtSupportedPlatforms/index.html> This has not yet been 
> updated to 5.6, but will be before the final release.
> 
>  
> 
> Yours,
> 
>  
> 
>       Tuukka
> 
>  
> 
>  
> 
>  
> 
> From: Development [mailto:development-boun...@qt-project.org 
> <mailto:development-boun...@qt-project.org>] On Behalf Of John Layt
> Sent: keskiviikkona 30. joulukuuta 2015 20.43
> To: development@qt-project.org <mailto:development@qt-project.org>
> Subject: [Development] Minimum Deployment Platforms for 5.7 onwards?
> 
>  
> 
> Hi,
> 
> Can I just clarify what the minimum deployment platforms are for 5.7 onwards? 
> That is, the lowest version of each OS that the code must still run on? Far 
> as I can tell it's something like:
> 
> Windows 7 (or Vista?)
> 
> Windows Embedded Compact 2013
> 
> OSX 10.8
> 
> iOS 5.0?
> 
> Android 4.1 (API Level 16)?
> 
> RHEL 6.6
> 
> Ubuntu 11.10?
> 
> There really should be a wiki page for this...
> 
>  
> 
> Cheers!
> 
> John.
> 
> 
> ___
> Development mailing list
> Development@qt-project.org <mailto:Development@qt-project.org>
> http://lists.qt-project.org/mailman/listinfo/development 
> <http://lists.qt-project.org/mailman/listinfo/development>
> 
> 
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Re: [Development] Minimum Deployment Platforms for 5.7 onwards?

[Sze Howe Koh]

On 9 January 2016 at 01:05, John Layt  wrote:
>
> On 8 January 2016 at 07:18, Turunen Tuukka  
> wrote:
>>
>>
>>
>> Hi John,
>>
>>
>>
>> This item was discussed at Qt Contributor’s Summit, please see session 
>> notes: http://wiki.qt.io/QtCS2015_LTS
>>
>>
>>
>> For compilers this is also documented to the Qt Base change log: 
>> http://code.qt.io/cgit/qt/qtbase.git/tree/dist/changes-5.5.1
>>
>>
>>
>> For 5.6 the current list of supported platforms and compilers is the 
>> following: http://wiki.qt.io/Qt-5.6.0-tools-and-versions (note that we are 
>> working to add OS X 10.11 to CI and fully support it)
>>
>>
>>
>> The idea is that by making Qt 5.6 LTS, we gain more freedom to drop older 
>> (non-c++11) compilers as well as older platforms from Qt 5.7 and subsequent 
>> versions. Those who have such older platforms to support, are recommended to 
>> stay with the LTS version for a while. This approach allows us to move 
>> faster for new features planned for future Qt releases.
>>
>>
>>
>> For application developers the documentation is often the best source to 
>> find the list of supported platforms: 
>> http://doc.qt.io/QtSupportedPlatforms/index.html This has not yet been 
>> updated to 5.6, but will be before the final release.
>
>
> Thanks Tuukka, but that's all a bit messy and hard to work out (not to 
> mention the LTS email threads here which are impossible to follow). It makes 
> my point really that there's no one canonical source telling us Qt 
> contributors what platforms we need to design or code features for in the 
> next Qt release, or for fixes in the last bug release. I need to know what 
> versions of the platform API's I can use, not what's Official, Reference, CI, 
> or Community supported.
>
> I've taken the liberty of starting a wiki page to try summarise things the 
> way I'd like to see them laid out:
>
> https://wiki.qt.io/PlatformSupport
>
> Feel free to edit or fix or move to a more appropriate place.
>
> John.

Thanks for creating this summary, John. Would you be willing to merge
your content into this existing page?
https://wiki.qt.io/Supported_Platforms


Regards,
Sze-Howe


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Re: [Development] Minimum Deployment Platforms for 5.7 onwards?

[Petroules Jake]

We're raising the minimum OS X to 10.8 (2012). The iOS minimum is still 6 (also 
2012), but I wonder whether we should also raise that a version (or even two) 
considering its uniquely rapid upgrade cycle (frequently upgraded hardware, 
less user ability to opt out of software updates).

Bumping it to iOS 8 would also allow us to stop making static builds and thus 
gain support for App Extensions.

Thoughts? Tor Arne?
--
Jake Petroules - jake.petrou...@theqtcompany.com
Consulting Services Engineer - The Qt Company

From: Development 
<development-boun...@qt-project.org<mailto:development-boun...@qt-project.org>> 
on behalf of Turunen Tuukka 
<tuukka.turu...@theqtcompany.com<mailto:tuukka.turu...@theqtcompany.com>>
Date: Thursday, January 7, 2016 at 11:18 PM
To: John Layt <jl...@kde.org<mailto:jl...@kde.org>>, 
"development@qt-project.org<mailto:development@qt-project.org>" 
<development@qt-project.org<mailto:development@qt-project.org>>
Subject: Re: [Development] Minimum Deployment Platforms for 5.7 onwards?


Hi John,

This item was discussed at Qt Contributor’s Summit, please see session notes: 
http://wiki.qt.io/QtCS2015_LTS

For compilers this is also documented to the Qt Base change log: 
http://code.qt.io/cgit/qt/qtbase.git/tree/dist/changes-5.5.1

For 5.6 the current list of supported platforms and compilers is the following: 
http://wiki.qt.io/Qt-5.6.0-tools-and-versions (note that we are working to add 
OS X 10.11 to CI and fully support it)

The idea is that by making Qt 5.6 LTS, we gain more freedom to drop older 
(non-c++11) compilers as well as older platforms from Qt 5.7 and subsequent 
versions. Those who have such older platforms to support, are recommended to 
stay with the LTS version for a while. This approach allows us to move faster 
for new features planned for future Qt releases.

For application developers the documentation is often the best source to find 
the list of supported platforms: 
http://doc.qt.io/QtSupportedPlatforms/index.html This has not yet been updated 
to 5.6, but will be before the final release.

Yours,

  Tuukka



From: Development [mailto:development-boun...@qt-project.org] On Behalf Of John 
Layt
Sent: keskiviikkona 30. joulukuuta 2015 20.43
To: development@qt-project.org<mailto:development@qt-project.org>
Subject: [Development] Minimum Deployment Platforms for 5.7 onwards?

Hi,
Can I just clarify what the minimum deployment platforms are for 5.7 onwards? 
That is, the lowest version of each OS that the code must still run on? Far as 
I can tell it's something like:
Windows 7 (or Vista?)
Windows Embedded Compact 2013
OSX 10.8
iOS 5.0?
Android 4.1 (API Level 16)?
RHEL 6.6
Ubuntu 11.10?
There really should be a wiki page for this...

Cheers!
John.
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Re: [Development] Minimum Deployment Platforms for 5.7 onwards?

[Tor Arne Vestbø]

On 08/01/16 11:24, Petroules Jake wrote:

We're raising the minimum OS X to 10.8 (2012). The iOS minimum is still
6 (also 2012), but I wonder whether we should also raise that a version
(or even two) considering its uniquely rapid upgrade cycle (frequently
upgraded hardware, less user ability to opt out of software updates).

Bumping it to iOS 8 would also allow us to stop making static builds and
thus gain support for App Extensions.



I don't see any reason to bump > iOS 6.0 as of now.

tor arne
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Re: [Development] Minimum Deployment Platforms for 5.7 onwards?

[John Layt]

On 8 January 2016 at 07:18, Turunen Tuukka 
wrote:

>
>
> Hi John,
>
>
>
> This item was discussed at Qt Contributor’s Summit, please see session
> notes: http://wiki.qt.io/QtCS2015_LTS
>
>
>
> For compilers this is also documented to the Qt Base change log:
> http://code.qt.io/cgit/qt/qtbase.git/tree/dist/changes-5.5.1
>
>
>
> For 5.6 the current list of supported platforms and compilers is the
> following: http://wiki.qt.io/Qt-5.6.0-tools-and-versions (note that we
> are working to add OS X 10.11 to CI and fully support it)
>
>
>
> The idea is that by making Qt 5.6 LTS, we gain more freedom to drop older
> (non-c++11) compilers as well as older platforms from Qt 5.7 and subsequent
> versions. Those who have such older platforms to support, are recommended
> to stay with the LTS version for a while. This approach allows us to move
> faster for new features planned for future Qt releases.
>
>
>
> For application developers the documentation is often the best source to
> find the list of supported platforms:
> http://doc.qt.io/QtSupportedPlatforms/index.html This has not yet been
> updated to 5.6, but will be before the final release.
>

Thanks Tuukka, but that's all a bit messy and hard to work out (not to
mention the LTS email threads here which are impossible to follow). It
makes my point really that there's no one canonical source telling us Qt
contributors what platforms we need to design or code features for in the
next Qt release, or for fixes in the last bug release. I need to know what
versions of the platform API's I can use, not what's Official, Reference,
CI, or Community supported.

I've taken the liberty of starting a wiki page to try summarise things the
way I'd like to see them laid out:

https://wiki.qt.io/PlatformSupport

Feel free to edit or fix or move to a more appropriate place.

John.
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Re: [Development] Minimum Deployment Platforms for 5.7 onwards?

[Turunen Tuukka]

Hi John,

This item was discussed at Qt Contributor’s Summit, please see session notes: 
http://wiki.qt.io/QtCS2015_LTS

For compilers this is also documented to the Qt Base change log: 
http://code.qt.io/cgit/qt/qtbase.git/tree/dist/changes-5.5.1

For 5.6 the current list of supported platforms and compilers is the following: 
http://wiki.qt.io/Qt-5.6.0-tools-and-versions (note that we are working to add 
OS X 10.11 to CI and fully support it)

The idea is that by making Qt 5.6 LTS, we gain more freedom to drop older 
(non-c++11) compilers as well as older platforms from Qt 5.7 and subsequent 
versions. Those who have such older platforms to support, are recommended to 
stay with the LTS version for a while. This approach allows us to move faster 
for new features planned for future Qt releases.

For application developers the documentation is often the best source to find 
the list of supported platforms: 
http://doc.qt.io/QtSupportedPlatforms/index.html This has not yet been updated 
to 5.6, but will be before the final release.

Yours,

  Tuukka



From: Development [mailto:development-boun...@qt-project.org] On Behalf Of John 
Layt
Sent: keskiviikkona 30. joulukuuta 2015 20.43
To: development@qt-project.org
Subject: [Development] Minimum Deployment Platforms for 5.7 onwards?

Hi,
Can I just clarify what the minimum deployment platforms are for 5.7 onwards? 
That is, the lowest version of each OS that the code must still run on? Far as 
I can tell it's something like:
Windows 7 (or Vista?)
Windows Embedded Compact 2013
OSX 10.8
iOS 5.0?
Android 4.1 (API Level 16)?
RHEL 6.6
Ubuntu 11.10?
There really should be a wiki page for this...

Cheers!
John.
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[Development] Minimum Deployment Platforms for 5.7 onwards?

[John Layt]

Hi,

Can I just clarify what the minimum deployment platforms are for 5.7
onwards? That is, the lowest version of each OS that the code must still
run on? Far as I can tell it's something like:

Windows 7 (or Vista?)
Windows Embedded Compact 2013
OSX 10.8
iOS 5.0?
Android 4.1 (API Level 16)?
RHEL 6.6
Ubuntu 11.10?

There really should be a wiki page for this...

Cheers!

John.
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