michael@pi1:~ $ apt-cache policy libssl-dev
libssl-dev:
Installed: 1.0.1t-1+deb8u6
Candidate: 1.0.1t-1+deb8u6
Version table:
*** 1.0.1t-1+deb8u6 500
500 http://mirrordirector.raspbian.org/raspbian jessie/main armhf Packages
100 /var/lib/dpkg/status
michael@pi1:~ $ sudo apt-get -y install libssl-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
libssl-dev is already the newest version (1.0.1t-1+deb8u6).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
michael@pi1:~ $