mainnet

Arbitrum posted on platform X that the Fhenix mainnet has been launched, bringing FHE-driven privacy features to Arbitrum. Users can now switch transactions from public mode to private mode through Fhenix Dual Mode.

The blockchain data acceleration network Optimum has launched the data propagation tool mump2p on the Ethereum mainnet. This tool reduces redundant data transmission through random linear network coding, helping validators receive and propagate block and proof messages more quickly.According to official information from Optimum, mump2p can run in parallel with existing Ethereum clients without the need to modify consensus rules or change hardware. Optimum claims that its mainnet block propagation speed can reach 2 to 4 times the GossipSub benchmark.

LayerZero posted on platform X that its Layer1 blockchain Zero mainnet and trading engine lzATLAS will launch on November 30. lzATLAS is the first application to be launched on Zero, starting with Open ATLAS, and will support more than ten trading venues at launch, with more to be integrated within the year.LayerZero stated that the initial focus of the mainnet is on open markets, and institutions are already testing lzATLAS in large market scenarios such as the U.S. stock market. Various trading venues are integrating trading infrastructure and testing order execution and settlement.

A network startup company called Optimum, led by Professor Muriel Médard from the Massachusetts Institute of Technology, announced that its block propagation software mump2p has officially launched on the Ethereum mainnet. The Ethereum liquid staking protocol ether.fi has made mump2p a mandatory requirement for all 12 of its node operators, whereas previously the software was optional for its operators.Optimum stated that there are currently 16 node operators running mump2p in production environments, collectively managing approximately 22,000 validator keys and over 1.4 million staked ETH, accounting for more than 3% of the total staked amount on Ethereum. Partners include Blockdaemon, Everstake, P2P.org, Stakefish, and Bitcoin Suisse. The software operates in a sidecar gateway manner, not replacing Ethereum's default GossipSub, but rather overlaying it on top of libp2p and utilizing random linear network coding technology. Optimum claims that the block arrival speed is 2.42 times faster than GossipSub, with an approximately 7.88 times reduction in arrival time variance.Rok Kopp, co-founder and Chief Growth Officer of ether.fi, stated that they will not require the entire validator set to adopt a new infrastructure unless they are confident that it can enhance the overall level of stakers and the network. Médard mentioned that traditional financial institutions invest billions of dollars to shorten execution times to the millisecond level because speed is money. Optimum launched its private testnet in June 2025, having previously completed a $11 million seed round financing led by 1kx, and plans to expand the protocol to other high-throughput blockchains after Ethereum.

The ENS official announcement states that the ENSv2 Ethereum mainnet activation proposal has opened for DAO voting, which is scheduled to close on October 25. If the proposal is approved and executed, new domain registrations for ENSv1 will stop, but existing domains can still be renewed.ENS Labs will open ENSv2 registration and existing domain upgrades after completing the final synchronization and will transfer the remaining management rights to the DAO. ENS indicates that existing .eth domains can continue to be used, and there is no deadline for upgrades. ENSv2 will enhance the management of domains and subdomains through a layered registry and flexible permission settings.

The entertainment application chain Sophon officially announced that the team plans to finally shut down the Sophon mainnet on November 30, 2026. Key infrastructure and related websites will begin to shut down after November 25. Assets remaining on the Sophon Chain after the deadline face the risk of permanent inaccessibility.

Polygon announced the launch of Polygon CDK Besu, supporting banks and financial institutions to deploy private blockchains based on Hyperledger Besu, and connect to other blockchains and their liquidity through Agglayer from the outset. It currently supports deployment on the Ethereum mainnet.

Snapshot posted on platform X, stating that ENS is voting to activate ENSv2 on the Ethereum mainnet through an on-chain proposal that includes 15 calls. This proposal is executed in one go by the execution contract controlled by the ENS DAO, which, if passed, will freeze new registrations of version 1 while allowing un-migrated domain names to continue renewing.After the upgrade, ENSv2 will allow owners to customize the subdomain registry and grant resolution rights individually without transferring domain ownership. In addition, ENS Labs will synchronize eligible domain names, open v2 registrations and migrations, and transfer the remaining management rights to the ENS DAO.

According to official news, Hyperliquid's first L2 network Elysium will launch its mainnet on November 9.It is reported that Elysium is a general-purpose, high-performance L2 network built specifically for Hyperliquid, settling to HyperEVM and co-located with HyperCore, with HYPE as its native gas token. Elysium currently operates Conduit's G2 sequencer on an architecture that meets SOC II Type 2 standards.

According to official news from IoTeX, the Zanzibar hard fork has been activated on the IoTeX mainnet (block height 53,533,081). According to IIP-59, voter rewards will be calculated and distributed on-chain during each reward cycle, eliminating off-chain services and intermediaries, allowing anyone to directly verify each payment on-chain. The first on-chain distribution will take place the following day.This upgrade also strengthens consensus by checking the proof of holding representative keys, preparing for subsequent BLS signature aggregation. Node operators need to upgrade to iotex-core v2.5.1 without the need to modify configurations or resynchronize.

According to Cointelegraph, Solana has not reported any mainnet outages for two consecutive years. The Fidelity Center for Applied Technology (FCAT) report indicates that its network health has made progress in resilience, economic security, and performance metrics.The report points out that high staking participation and incentive mechanisms for rewarding validators support Solana's economic security, while low latency, improved scalability, and low-cost transactions also support its large-scale applications.The report also states that the concentration of staking among a few validator identities and operators, as well as the concentration of custodial and client software, still requires ongoing observation. Jacob Creech, Vice President of Technology at the Solana Foundation, stated that Solana reduced the slot time to 350 milliseconds on August 21; the foundation announced plans in June to further reduce it to 200 milliseconds, with three subsequent adjustments of 50 milliseconds each.

Nillion announced on platform X that its L2 network will soon cease operations and reminded users holding NIL or ETH to transfer their assets to the Ethereum Layer 1 network (L1) as soon as possible before the network shuts down.

Unified Account Protocol Clovis announced that the private mainnet is now live. Clovis integrates revenue, cross-chain assets, and collateralized lending into a single unified account, allowing users to deposit assets on supported chains and transfer assets between chains.According to the official statement, users can use eligible positions to natively borrow assets in the market built on Morpho on Base.

Galaxy Research released a research report on October 15, categorizing decision markets and impact markets as conditional markets. These two types of conditional trading settle only when specific outcomes occur, and decision markets also settle on clear and binding results. Unlike prediction markets, conditional markets are not limited to binary, all-or-nothing structures; they trade real assets and their prices rather than synthetic probability contracts, with the byproduct being the impact of events on asset values rather than occurrence probabilities. The agency referred to prediction markets as the zero version of event-driven finance, with a large number of experiments emerging over the past 18 months, and new infrastructure pushing it beyond prediction markets.The ownership token-based issuance platform Umia, aimed at EVM-compatible chains, launched in September, expanding decision markets from being primarily limited to Solana, where MetaDAO was the first to scale binary pass or fail markets, to multi-outcome markets that can price proposal parameters. A deposit of stablecoins or DAO tokens can simultaneously convert into positions covering each outcome, with only winning market trades ultimately settling. Currently, 22 DAO treasuries fully governed by decision markets hold a total of $50.5 million, with MetaDAO accounting for 21 of them and 78% of the assets; the stablecoin portion is $35.8 million, with MetaDAO holding 82%. The fundraising for the market-governed DAO issuance platform by MetaDAO was approximately 11 months prior to this research report. Umia extends the issuable chains to Solana or EVM, which together account for about 92% of TVL by chain type.

According to The Defiant, the Solana development team Anza has scheduled the migration of Alpenglow's mainnet Beta for approximately 10:50 AM Eastern Time on October 21 (Wednesday), at which point the new consensus system will replace TowerBFT, aiming to reduce the final confirmation time for transactions to about 150 milliseconds. The Solana Foundation's upgrade guide indicates that the final confirmation time under TowerBFT is about 12.8 seconds. Final confirmation refers to the point in time when a transaction can no longer be rolled back, rather than the block interval.Alpenglow's Votor voting protocol no longer submits votes as on-chain transactions; instead, messages are sent directly between validators and aggregated into certificates, allowing blocks to be finally confirmed after one to two rounds of voting. The removal of voting transactions from blocks also frees up block space for users, while the execution and fees for user transactions remain unchanged. This upgrade had previously completed the migration of the testnet and development network in September, and the mainnet functionality switch has not yet been activated. According to Anza's activation policy, the new version of the software must be adopted by 95% of the staked amount for two epochs before it can be activated on the mainnet.The migration plan separates the activation of the functionality switch from the handover itself: the functionality switch is activated at the epoch boundary, and after 5,000 slots, blocks will pause carrying user transactions and will only contain votes. Validators will then establish the Alpenglow genesis certificate supported by 82% of the staked amount, roll back blocks containing only votes, and then restore user transactions with Votor. Anza expects the handover to take several hundred milliseconds.

Mysten Labs reports that the Sui network has completed its first native post-quantum Devnet transaction. This Devnet implementation introduces the ML-DSA-65 account signature, allowing accounts to authorize transactions directly using this post-quantum signature scheme. ML-DSA-65 belongs to the ML-DSA series defined by the National Institute of Standards and Technology (NIST) FIPS 204 standard, and Sui uses it as the native protocol signature scheme for everyday accounts.Sui is also planning to introduce a hash-based SLH-DSA-SHA2-128s (FIPS 205) for high-value vaults in Move smart contracts. The two schemes are based on lattice-based and hash-based mathematical problems, respectively, so a weakness in one scheme will not affect the other. Since Sui keys are deterministically derived from seeds, users can migrate to post-quantum keys using existing mnemonic phrases; the already launched address aliases allow accounts to update authorization keys without transferring assets.Post-quantum accounts are being rolled out in an optional, incremental manner, following the online path of zkLogin and passkey. Sui states that the goal for the post-quantum vault is to go live on the mainnet within this year, with the native ML-DSA-65 accounts aiming to enter the testnet by the end of the year, and the mainnet native account authentication goal set for the first quarter of 2027, with the final timeline depending on independent audits and testnet feedback.

According to official news from Aptos, the Aptos mainnet has officially launched the Encrypted Mempool feature. Users can choose to encrypt pending transactions before block finalization, keeping the transaction call functions and input content encrypted before execution, while the sender's address and fee information remain visible to the outside.This feature is mainly aimed at institutions (to avoid exposing intentions of large orders in advance), traders (to reduce MEV arbitrage risks), and AI entities (to ensure transaction inputs remain private before execution).

Ontology announced that the investigation into the security incident of the ecological project has concluded, and its mainnet has resumed block production and returned to normal operation. The core infrastructure of the Ontology network remains secure, and there has been no loss of funds on the network itself.The previous suspension of block production was a precautionary measure taken in collaboration with consensus nodes, aimed at facilitating the investigation and reducing potential risks.

The Solana client development company Anza posted on X that SIMD-0525 has been completed, and the 200 millisecond slot is now live on the Solana mainnet test version.Anza stated that the block landing frequency has reached twice that of the genesis, and the duration of one epoch has been shortened from about two days to about one day. Anza was formed by the original core engineering team of Solana Labs and is responsible for maintaining the Solana validator client Agave.