# 4.0.0



* Support #5925: WLocale::setTimeZone seems to be broken now.
* Bug #4790: Wt::WObject::addChild() bug
* Feature #5116: WEnvironment.C:536 exception
* Bug #6075: [Wt::Dbo] Add built-in type support for std::chrono::time_point and std::chrono::seconds
* Bug #6091: Is Wt::Dbo::ptr<C> move ready?
* Bug #6103: Error when quering from db from 2 widgets
* Feature #6069: Google Maps geolocation API
* Feature #6070: HTML5 geolocation
* Bug #5892: wt4 compilation failed with gcc 4.9 
* Feature #4658: Layout managers: support CSS flexbox as implementation
* Bug #5860: Wt 4 : Possibly rendering bug in WTable
* Bug #5662: Fix documentation for WFormWidget::selected()
* Bug #5854: Wt 4 Postgresql 9.4 and UTF8
* Bug #5914: Wt internal error; code: undefined, description: b.find(...).get(...).lastChild is null
* Feature #5606: c++ exceptions
* Bug #6105: setfocus
* Feature #5607: wt core requirements
* Support #5594: wt4 build using VS 2017 RTM?
* Feature #5667: Listen on IPv6 + IPv4
* Bug #5796: Wt 4: figure out what to do with boost::numeric::ublas usage in WGenericMatrix
* Bug #5797: Wt 4: Cannot build Dbo separately
* Bug #5829: WFormModel::FieldMap with "const char*" key
* Bug #5889: WTreeView loooks bad after data update
* Feature #6130: Impossible to access entity relation of an entity returned from a function | Dbo load(): no active transaction
* Bug #5859: Wt 4 : Possibly unitialized value
* Bug #5887: Crash with WTimePicker
* Bug #6049: WTimer::singleShot send signal to dead object
* Support #5944: wt-4.0.0 Home.wt
* Bug #6102: Can't chain signals from children up to parent widget
* Bug #6123: Seg fault on WPanel setCollapsible
* Bug #6124: WValidator destructor is not virtual
* Feature #6122: Compare == operator for Wt::Dbo::Session