We have recently completed our rebase to bitcoin 0.16.3 and release-0.8 branch reached its fourth release candidate.
Peercoin needs your help testing new release. Please update your testnet nodes, run them with debug=1 in config and report all issues that you notice that are not known at github.
Please note that for time being testnet directory is called ~/.peercoin/testnet3, this way you can run current testnet and 0.8 without trashing each others data directory.
Post addresses for testnet coins giveaway if our faucet is not working for you.