Note that this "event" is based on block number, not actual date. Block # 2062364 is BIP65 & BIP66 activation. Atomic swaps get officially enabled at this time (it is possible to do them now)

Segwit signaling in 0.15.2 starts July 15th and lasts one year.

HD wallets is already in the 0.15.x wallets.

Block # 2062364 is expected to take place June 5th now, based on simple calculations about block emission that I've seen on the network.