PANews reported on October 28th that Kaia v2.1.0 is now live. This update focuses on supporting MEV Auction (KIP-249), improving API and storage performance without requiring a hard fork. The new version allows for receiving BidTxs, allowing external auctioneers to communicate winners via a websocket connection (auction namespace). It is recommended to enable websockets and restrict access (using a firewall or allowlist is recommended).

For full nodes, LevelDB now uses snappy compression by default. Users can reclaim disk space through chain database compression, but this process is time-consuming and increases I/O load. For archive nodes, an experimental FlatTrie feature has been added, which uses an Erigon-style state layout, but requires resynchronization and some features are temporarily unavailable (such as eth_getProof, real-time pruning, and rollback). Additionally, v2.1.0 introduces RocksDB support, the "safe" and "finalized" RPC block parameters, EIP-7702 checking mechanisms, and more refined compression control, performance, and stability optimizations.