Testnet v0.2.1 released: fee markets, BitTorrent-style sync, de-MLS for direct chats

v0.2.1 is live. Updates to consensus, bootstrapping, wallet UX, and messaging.

Release notes are at https://roadmap.logos.co/testnets/v02-1-release

Updating your node

Node Runner Instructions: https://docs.logos.co/blockchain/get-started/run-a-logos-blockchain-node-from-cli

Fee markets are live on L1

Inscriptions now require transaction fees, so token economics are active. LEZ transactions remain free for now; expect that to change as the economics mature. If you’re testing inscription flows, budget for fees.

Initial Block Download is rebuilt

The new model is like BitTorrent: trusted peers pin the target chain tip and the rest of the network seeds chain history. New nodes should sync faster and without leaning on any single source.

PoS participation for bridged funds

Channel balances are now backed by UTXOs so bridged funds continue participating in PPoS rather than sitting idle. Heads-up: LEZ withdrawals are temporarily disabled until LEZ is updated for the new UTXO-based channel ledger. Expected soon after this release.

Execution Zone changes

Accounts must be initialized before use. The wallet now makes this explicit with an initialization button. If you hit initialization errors in 0.2.0, this flow is the fix to test. Private accounts are now grouped under their associated shareable keypairs, which should make multi-account management less painful.

Storage

Logos Improved NAT Traversal ships in this build. If you’ve had connectivity issues behind NAT, this is the fix to test.

Messaging

Node API improvements, a new Store query API against the message store, and direct chats now use de-MLS (group chats already did). App UI improvements land alongside.