This speculative commit will populate UDS_CREATION_TIME if the Linux Kernel and QT version support it, following changes to do the same in FreeBSD and OpenBSD [[ https://phabricator.kde.org/D5138 | earlier this year ]].
The minimum Linux kernel version is 4.11, which includes the statx() system call that reports file creation time.
[[ https://github.com/qt/qtbase/commit/d3393ce25833c0afd7f0fa6b85fd6f3bd7ad520a | Support has already been added to QFile ]], but this hasn't made it into any released QT versions yet.
This commit should populate UDS_CREATION_TIME if the above two conditions are met, which will have the effect of causing DOlphin to display file creation time (support for this was [[ https://phabricator.kde.org/D6243 | already added earlier ]])