Does the bitcoin testnet3 network support Segwit and OP_CSV?

Does the bitcoin testnet3 network support Segwit and OP_CSV?

As far as I know, Segregated Witness and OP_CHECKSEQUENCEVERIFY are the last features needed to be able to fully implement a trustless bi-directional payment channel, from start to finish. (Technically you don't need OP_CHECKSEQUENCEVERIFY, it just makes channels a lot better)

Does testnet3 support those features?

If not, is there another public development chain which has those features?

http://bit.ly/2AoKkzp

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