Upgrading to Fedora 21

The Fedora Project will soon put out its 21st release.  I've been running the pre-release bits for a while now, here are a few observations:

• Upgrade from Fedora 20 to Fedora 21 via 'fedup' was fast on my SSD disk, and there were no blockers after the reboot - minimal downtime!
• Bug 740607 - evince no longer can switch to prev / next pages using the buttons or the ctrl+up/down keyboard shortcuts
• Bug 740608 - gnome-shell's calendar display overflows from the box if the number of calendar entries are more than some number; the box is always fixed in size.
• Bug 739991 / Bug 730128 - gnome-terminal doesn't pass alt+<n> to applications running inside the terminal if there isn't a tab with that <n>.  This is the most serious regression for me; breaks several workflows for me: my irssi session as well as non-irssi terminals I use for work.  A surprising thing I found out after filing this report is there's no way to open a closed bug report on gnome bugzilla, which means if some decides the bug isn't going to be fixed, there's no option to get new information back on the developers' radar.
• Bug 1163747 - memleak in upowerd

The workarounds[1] listed[2] earlier[3] are still in effect for things to work to my liking.

Everything else seems to be working reasonably fine so far, no further regressions.  I am tempted to give KDE a try again, though!