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Hello people,

As planned, we had the "KF5 in Release Mode" BoF at Akademy. Quite a lo=
t of=20
information on the current status got shared, but I'm not going to focu=
s on=20
that in this email. I'm writing this email to let everyone know about t=
he two=20
main novelties which got discussed during this meeting.

First topic is about the C++11 support in KF5. Volker added an email ab=
out=20
that, but I thought I'd run through it again. So far, no C++11 feature =
was=20
used in KF5. The default rule on that topic was "let's do it the same w=
ay than=20
Qt" since one of the main goals of KF5 is to make our technologies desi=
rable=20
for Qt application developers. After revisiting how it is done in Qt, i=
t turns=20
out that the situation there is less than clear... We agreed on support=
ing the=20
following minimal versions for the compilers: gcc 4.5, clang 3.1 and VS=
2010.

That means the new rule is as follow:
 * We're not supporting the full extent of C++11 in KF5 (although I enc=
ourage=20
people to use more higher up in the stack);
 * We're white listing some of the C++11 features in KF5, namely are no=
w=20
allowed:
   - auto;
   - rvalue support (except for "*this");
   - lambdas.
 * If you want to use more than the above:
   - it must be made optional by the use of #ifdef or the Q_* macros (e=
.g.=20
Q_DECL_OVERRIDE);
   - both the binaries built with or without those extra features must =
be=20
binary compatible.

Note I also added the above to the policies for Frameworks:
http://community.kde.org/Frameworks/Policies#Frameworks_compiler_requir=
ements_and_C.2B.2B11

Second topic, more to the point of the BoF, is about getting ourselves =
in=20
release mode. The situation in KF5 is getting clearer by the day and as=
 such=20
we're seeing progress toward meeting a releasable state. This is why we=
've=20
been already filtering the type of tasks we distribute to focus only on=
 the=20
"must have" tasks. Every other type of tasks are put on a waiting list =
for=20
post 5.0 work.

With this ongoing shift of strategy and mindset, we can play a bit the=20=

prediction game. At the current pace and amount of effort put into the=20=

project, it is feasible to roll out a technology preview in December 20=
13=20
latest with a good confidence level.
If the tooling supports it, that preview probably won't be released in =
one go=20
but in batches (to be confirmed later) in order to find the problems al=
ong the=20
way. With such a strategy we might be able to be very close to a final =
release=20
in March 2014.
It's clearly not a given, we'll reevaluate in December if we're still o=
n=20
track, as you know in volunteer projects the amount of available effort=
 can=20
vary greatly (and those estimates assume it will be constant). Still, t=
hat=20
makes March 2014 a very worthwhile goal to pursue, so let's try to meet=
 it=20
nonetheless.

That's it for now, thanks for your attention.

Regards.
--=20
K=E9vin Ottens, http://ervin.ipsquad.net

KDAB - proud supporter of KDE, http://www.kdab.com
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