Hedera
HBAR
Hedera (HBAR) Calendar: Release Schedule, Listings, Hard Fork, Halving
Maintenance
Hedera has announced a scheduled 12-hour brownout of legacy Hedera Consensus Service (HCS) endpoints starting on July 23, at 15:00 UTC.
Shut Down Legacy HCS Mirror Node Endpoints
Hedera has issued a final deprecation notice confirming that legacy Hedera Consensus Service (HCS) mirror node endpoints will be permanently shut down on August 20, at 15:00 UTC.
Maintenance
Hedera has announced scheduled maintenance for June 18, at 15:00 UTC, during which legacy Hedera Consensus Service (HCS) mirror node endpoints will undergo a one-hour brownout.
JavaScript SDK Update
Hedera will retire the MyHbarWallet gRPC-Web proxies for mainnet, testnet and previewnet on June 2nd.
Testnet Upgrade
Hedera is scheduled to upgrade its testnet to version 0.61 on April 24th at 17:00 UTC.
Community Call
Hedera will host a community call on April 10th at 14:00 UTC, featuring the HBAR Foundation, Tokeny, iobuilders, and Hashgraph.
Testnet Upgrade
Hedera will upgrade its testnet to version 0.60 on April 8th at 17:00 UTC.
Paris Blockchain Week in Paris
Eric Piscini, CEO of Hashgraph, will deliver a keynote titled “Enterprise Blockchain: The Future is Hybrid” at Paris Blockchain Week on April 8, from 13:20 to 13:40 UTC at the Mona Lisa Stage.
HashSphere Launch
Hedera has introduced HashSphere, a private, permissioned network designed for enterprise use.
Community Call
Hedera will host a community call on X, featuring discussions with Hashgraph and SEALCOIN on March 27th at 16:00 UTC.
Mainnet Upgrade
Hedera will upgrade its mainnet to version 0.59 on March 26th, at 17:00 UTC.
Testnet Upgrade
Hedera will upgrade its testnet to version 0.59 on March 10th at 18:00 UTC. The upgrade is expected to take approximately 40 minutes to complete.
HederaCon 2025 in Denver
Hedera will host HederaCon 2025 in Denver on February 25th.
Mainnet Upgrade
Hedera will upgrade its mainnet to version 0.58 on February 19th, commencing at 18:00 UTC.
Testnet Upgrade
Hedera will upgrade testnet to version 0.58.8 on February 6th at 18:00 UTC. The upgrade is expected to take approximately 40 minutes to complete.
Community Call
Hedera will hold a community call on January 24th at 16:00 UTC, featuring Hashgraph and Sirio Finance.
Mainnet Upgrade
Hedera will be upgrading its mainnet to version 0.57 on January 15th at 18:00 UTC.
