Optimism
OP
Optimism (OP) Calendar: Release Schedule, Listings, Hard Fork, Halving
Maintenance
Optimism has announced a scheduled maintenance window for OP Goerli. The maintenance is set to start on December 20th at 20:30 UTC.
Bitbank
Indodax
On-Chain Summit in Istanbul
Optimism is set to participate in the On-chain Summit in Istanbul on November 16th.
Canyon Network on Testnet
Optimism will launch the Canyon network upgrade on November 15th on the testnet.
Tokens Unlock
Optimism will unlock 24,160,000 OP tokens on August 30th, constituting approximately 3.37% of the currently circulating supply.
Maintenance
Optimism has announced that there will be a brief interruption in service on the OP mainnet on August 28th at 17:00 UTC. This downtime, expected to last up to
On-Chain Art and Culture Campaign
Optimism is set to be a part of the On-chain Summer event, a campaign organized by Base. Optimistic NFT is scheduled to be released on the 24th of August at 5
Tokens Unlock
Optimism will unlock 586,670 OP tokens on July 30th, constituting approximately 3.56% of the currently circulating supply.
Listing on 
Bitfinex
Bitfinex will list Optimism (OP) on July 27th at 10:00 UTC. OP will be available to trade with US Dollars (OP/USD) and Tether tokens (OP/USDT).