The v2.3 runtime upgrade went live on mainnet on 10 November. It brings BNB Chain support, cbBTC on Ethereum, and the code for FLIP 2.1, Chainflip’s fixed-supply, revenue-backed token upgrade. BNB Chain and cbBTC each get their own launch announcement this week.
Each is a part of the same upgrade, and each will get its own rollout as it comes online. Here is what v2.3 brings.
New chain: BNB Chain
BNB Chain (BNB Smart Chain) is now supported at the protocol level. Native BNB and USDT on BNB Chain (BSC-USD) are now live as native swap assets alongside the rest of Chainflip's book.
BNB
USDT on BNB Chain (BSC-USD)
BNB Chain is one of the busiest ecosystems in crypto, home to more USDT holders than any other chain, now ahead of TRON, deep spot markets on PancakeSwap, and a fast-growing scene for tokenized stocks, real-world assets, and AI agents. Connecting it directly to Bitcoin, Ethereum, Solana, and the rest of the assets on Chainflip has been one of our most requested integrations.
BNB Chain was tested on the Perseverance testnet before mainnet. A dedicated launch announcement follows this week.
New asset: cbBTC on Ethereum
Coinbase Wrapped Bitcoin (cbBTC) is now supported natively on Chainflip via Ethereum. cbBTC is Coinbase's 1:1 backed wrapped Bitcoin, offering an alternative to wBTC for holders who prefer Coinbase's custody model.
With cbBTC live, Chainflip users can swap between native BTC and cbBTC in either direction, and use cbBTC as either a source or destination asset for cross-chain swaps.
A dedicated cbBTC launch announcement follows this week.
Upgrade: FLIP 2.1 arrives in this release, activates later
FLIP 2.1, the fixed-supply, revenue-backed token upgrade, ships as part of v2.3. This is the tokenomics update introduced in Introducing FLIP 2.1: Fixed Supply, Revenue-Backed Staking.
Important: the FLIP 2.1 code is in v2.3, but activation will follow at a later date. This gives LPs, delegators, and integrators time to prepare before buy-and-distribute becomes live and emissions stop.
A separate activation-day announcement will confirm the exact date once it is set.
Also in this release
v2.3 also makes witnessing on Polkadot AssetHub more reliable. It gives validator operators more control too, with a new max-bid setting for auctions and a dedicated key rotation command.
What’s next
With v2.3 live, the focus now moves to getting the new assets into everyday use. We’re working with wallets, aggregators and other integrators to switch on BNB Chain and cbBTC routes, and liquidity providers are building up depth in the new pools so swaps run smoothly as volume picks up.
BNB Chain and cbBTC each get their own launch announcement this week. FLIP 2.1 activation will be announced separately once the date is set.
If you’re building a wallet or app, or want to provide liquidity, start with the docs.
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