Skype for Linux has been at V4.3 for quite some time (years?). This version has now gone end-of-life and Microsoft replaced it with Skype for Linux V8.10.0.4 on 8 November 2017. If you start Skype for Linux V4.3 it will launch the login screen. Upon entering your account and password details Skype will crash. You will not be the only one to have struck this feature and you can read about this here<https://askubuntu.com/questions/975804/skype-crashes-after-logging-in>. For an announcement on Skype for Linux from Microsoft and public discussion go here<https://answers.microsoft.com/en-us/skype/forum/skype_linux-skype_startms-skype_installms/end-of-life-of-skype-for-linux-43/70fe7036-ddf3-4fa3-9c06-1bca3ec0226c?auth=1> I used synaptic packet manager to remove my Skype 4.3. I then downloaded Skype V8.10 from here<https://www.skype.com/en/get-skype/> for my Ubuntu 16.04 laptop. The file downloaded was skypeforlinux-64.deb at 63.9MB. Double clicking on the file auto-launched its installation. I found that my preferred settings had changed so you may want to spend some time going through them and setting them as desired.
From the public discussion<https://answers.microsoft.com/en-us/skype/forum/skype_linux-skype_startms-skype_installms/end-of-life-of-skype-for-linux-43/70fe7036-ddf3-4fa3-9c06-1bca3ec0226c?auth=1> on this new version the 4th person to post a reply states...
"with lots of improvements" Really? No more search in history. No more normal application settings. No more support of x32 processors. Enjoy the "improvements". cheers, Ian.