Question about Snaps

[Chris]

Reading this thread - What's happening with 16.04 & 16.10? 100% of RAM
being used by nothing - I got curious and ran df -h on my 16.04.1LTS
box. Everything looks just fine but I've a question about the a snaps
allocation when it's upgraded to a newer version. As seen below:

Filesystem      Size  Used Avail Use% Mounted on
/dev/loop2       82M   82M     0 100% /snap/wallpaperdownloader/3
/dev/loop3       12M   12M     0 100% /snap/vtop/3
/dev/loop1       97M   97M     0 100% /snap/wallpaperdownloader/4
/dev/loop0       75M   75M     0 100% /snap/ubuntu-core/423

there is the snap core itself in /dev/loop0. The question comes about
with 'wallpaperdownloader' /dev/loop2 (version 2.1 of the snap) and
/dev/loop1 (version 2.2 of the snap). Ignore the vtop snap as it's not
being currently used (disabled). Should I be able to remove the
~/snap/wallpaperdownloader/3 and release that 82M of space or how
should that be done?

-- 
Chris
KeyID 0xE372A7DA98E6705C
31.11972; -97.90167 (Elev. 1092 ft)
16:39:48 up 9 days, 9:03, 1 user, load average: 0.51, 0.26, 0.18
Ubuntu 16.04.1 LTS, kernel 4.4.0-38-generic #57-Ubuntu SMP Tue Sep 6 15:42:33 UTC 2016