user18196: 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? 

user12983: 
Yes, testnet3 supports SegWit as of block 834624.
Yes, testnet3 supports both OP_CSV and OP_CLTV.

You might also be interested to know that there is a segnet test network on another port number. See https://bitcointalk.org/index.php?topic=1453392.0 for more details.

18196: <p>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)</p>

<p>Does testnet3 support those features?</p>

<p>If not, is there another public development chain which has those features? </p>
 12983: <ol>
<li>Yes, <code>testnet3</code> supports SegWit as of block 834624.</li>
<li>Yes, <code>testnet3</code> supports both OP_CSV and OP_CLTV.</li>
</ol>

<p>You might also be interested to know that there is a <code>segnet</code> test network on another port number. See <a href="https://bitcointalk.org/index.php?topic=1453392.0" rel="nofollow">https://bitcointalk.org/index.php?topic=1453392.0</a> for more details.</p>
