ChainCatcher message, Sui officials posted on the X platform stating, "Between 1:15 and 3:45 PM Pacific Time on November 21, 2024, the Sui mainnet experienced downtime. All validators fell into a crash loop, preventing any transactions from being processed. The Sui network suffered its first network failure due to a bug in the congestion control code. This bug originated from a recent upgrade to the congestion control code, aimed at better utilizing shared objects. Sui contributors quickly deployed a fix and restored normal network activity within 2.5 hours."

ChainCatcher news, Avalanche announced that it will release the pre-release code for the Avalanche Cortina upgrade on the Fuji testnet on March 27, with the Cortina upgrade set to activate on March 30 at 23:00. The latest version of AvalancheGo will migrate the X-Chain to run on the Snowman++ consensus, making the X-Chain compatible with Avalanche Warp Messaging and making it easier for exchanges to support the X-Chain.The Cortina upgrade also introduces simplified batch delegator rewards and increases the C-Chain Gas limit. The simplified batch delegator rewards streamline the fee distribution for validators with a large number of delegators, processing in batches throughout the node's validation period and distributing upon node unbonding. Additionally, Cortina increases the C-Chain block Gas limit to 15 million Gas, up from the previous limit of 8 million Gas per block. (source link)