Cosmos Hub to Release CometBFT v.0.39 in Q1

Name: CometBFT v.0.39 Launch
Start: 2026-03-31T00:00:00Z
End: 2026-04-01T00:00:00Z

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Cosmos plans to release CometBFT v.0.39 in late Q1.

The update includes support for BLS signatures and an experimental libp2p integration, aiming to improve consensus efficiency and networking flexibility for Cosmos-based chains.

Event date: Until March 31, 2026 UTC

Cosmos - The Interchain ⚛️
@cosmos

When it comes to enterprise features, the priorities are:

• Native Proof of Authority module on the SDK
• Native programmable privacy primitives

For the latter, Cosmos Labs is exploring ZK UTXO and sidecar architectures using TEEs, among other things. https://twitter.com/cosmos/status/2008229870032351441/photo/1

Cosmos - The Interchain ⚛️
@cosmos

Many of these upgrades, and a lot of DevEx improvements, are coming in the next release family, expected late q1:

[CometBFT v0.39]: BLS signing, experimental libp2p

[SDK v0.54]: BlockSTM, IAVLx, PoA

[ibc-go v11]: GMP and IFT support

[Cosmos EVM]: Latest EIPs, RPC performance

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