Actually for December!
December 5 - NEO (NEO) and Gas (GAS) will be added to the Korean exchange Coinrail
December 7 - Bitcoin Cash (BCH) will add BitStamp to the stock exchange
December 9 - Einsteinium (EMC2) hardfork and "burning" coins on the block 1 699 157
December 11 - Stratis (STRAT) launching a purse with TumbleBit and Masternodes on the main network
December 12 - Ethereum Classic (ETC) fork ECIP-1017
December 15 - Monero (XMR) Mitap in Vienna, network update, hardware wallets release
December 18 - Bitcoin (BTC) CME Group launches futures trading
December 18 - Stratis (STRAT) alpha version of Full Node
December 25 - Nxt (NXT) launch of IGNIS and the main ARDR network
December 25 - Nxt (NXT) IGNIS tokens will be awarded to holders of NXT
December 30 - Lisk (LSK) release of the updated kernel Lisk v.1.0.0
December 30 - Qtum (QTUM) Ledger hardware wallet adds QTUM support
December 31 - Syscoin (SYS) rebranding
December 31 - NEM (XEM) network update to version 2.0
December 31 - Viacoin (VIA) VIA Core 0.1 core update