[Development] Proposal: Deprecating platforms in Qt 5.6 that don't support lambda

Alejandro Exojo suy at badopi.org
Fri Feb 20 12:52:52 CET 2015

El Thursday 19 February 2015, Tomasz Siekierda escribió:
> So those companies/ users of QNX are not willing to upgrade their OS,
> compiler, but they are willing to upgrade Qt?

I think the main problem with requiring a very up to date Qt is that sometimes 
only newer versions of Qt have bugfixes. In a previous project we found the 
QSettings bug that lost all the file contents. Luckyly we were on 5.2, so we 
could backport the fix that I think landed only on 5.3 or 5.4, but people on 
4.8 could not do it, since the fix required using QLockFile and QSaveFile, not 
in Qt4.

The solution is of course having an LTS release that receives bugfixes, and 
that's already being worked as per Tuuka's previous emails. Is of course a lot 
of work, since once the LTS is released and newer versions diverge from it, 
things have to be done twice. And since not all contributions can be applied 
to both branches (e.g. the previous example), and people might still need the 
fixes, we would be back to square one.

Alex (a.k.a. suy) | GPG ID 0x0B8B0BC2
http://barnacity.net/ | http://disperso.net

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