The last release (0.2.0) had the libtool version (current:revision:age)
set to 1:0:0. Since this release doesn't add/change/remove any
interfaces, only 'revision' is increased, resulting in 1:1:0.
http://www.gnu.org/software/libtool/manual/libtool.html#Updating-version-info
Frontends using libsigrok don't need to be recompiled or relinked.