Méven Car is a KDE developer, maintaining Dolphin and working mostly on adjacent subjects, including Plasma from time to time.
Dolphin 26.08 and KIO, part two: what got faster and smaller
This is the second half of what changed in Dolphin 26.08. The first half is what you can see: the features, the behaviour changes, the bugs. This one is what you can measure.
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Dolphin 26.08, and KIO perf improvements
Dolphin 26.08 has been released. Here is more of what changed in it, and in the KIO framework underneath it.
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Making KIO copy many files fast
There is a bug in KDE's bug tracker that is almost as old as some of our contributors: bug 342056, "Ridiculously slow file copy (multiple small files)", reported by Alexander Nestorov back in 2014. The report is blunt: copying a 15 GB folder of roughly 3 million small files took 5 to 10 hours in KDE, versus about 20 minutes with rsync. One commenter summed up the mood:
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Dolphin 26.04 release
Sunday, 3 May 2026
I want to highlight a few changes that came to Dolphin 26.04 and add some nuance to the release announcement.
The the KDE Gear 26.04 release announcement mentions:
In version 26.04, Dolphin lets you add keyboard shortcuts to nearly any option in any menu, plugin or extension.
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