This is a bug fix release. Some edit functions were locking up on Linux Mint 17.3. This release makes the problem much less frequent but is not a 100% cure. The problem seems to be in the GTK library for this particular Linux. The problem has not been evident in Ubuntu 14.04 through 15.10. The problem can also be eliminated by upgrading to a newer version of libgtk3.
Package and source tarball can be downloaded here.