Release Notes & Updates

mezod Chain Client Releases

2026-04-13 - mezod v9.0.0

• Stable mainnet release enabling Triparty Bridge
• Mandatory upgrade on Mezo Mainnet at block 8194500
• Release: v9.0.0
• Full diff: v8.0.0…v9.0.0

2026-03-25 - mezod v8.0.0

• Stable mainnet release laying the foundation for the incoming Triparty feature
• Mandatory upgrade on Mezo Mainnet at block 7739500
• Release: v8.0.0
• Full diff: v7.0.0…v8.0.0

2026-03-23 - mezod v7.0.0

• Stable mainnet release upgrading EVM compatibility up to the Cancun fork
• Mandatory upgrade on Mezo Mainnet at block 7691500
• Release: v7.0.0
• Full diff: v6.0.1…v7.0.0

2026-02-18 - mezod v6.0.1

• New stable mainnet patch release for mezod
• Recommended for RPC nodes (optional for validators and seed nodes)
• Changelog: filtered Cosmos-level failed transactions from debug trace RPCs
• Release: v6.0.1
• Full diff: v6.0.0…v6.0.1

2026-02-09 - mezod v6.0.0

• New stable mainnet release with changes for complex transactions using Mezo native precompiles
• Mandatory upgrade on Mezo Mainnet at block 6773500
• Release: v6.0.0
• Full diff: v5.0.0…v6.0.0

2025-12-04 - mezod v5.0.0

• Stable mainnet release preparing chain changes for the Tigris release
• Mandatory upgrade on Mezo Mainnet at block 5207000
• Release: v5.0.0
• Full diff: v4.0.1…v5.0.0

2025-09-16 - mezod v4.0.1

• Stable patch release
• Recommended for RPC nodes (optional for validators and seed nodes)
• Release: v4.0.1
• Full diff: v4.0.0…v4.0.1

2025-09-11 - mezod v4.0.0

• Stable mainnet release introducing bridge-out support to Ethereum and Bitcoin chains
• Mandatory upgrade on Mezo Mainnet at block 3194000
• Release: v4.0.0
• Full diff: v3.0.1…v4.0.0

2025-08-19 - mezod v3.0.1

• Stable patch release
• Recommended for RPC nodes (optional for validators and seed nodes)
• Release: v3.0.1
• Full diff: v3.0.0…v3.0.1

2025-07-10 - mezod v3.0.0

• Stable mainnet release of mezod
• Release: v3.0.0
• Full diff: v2.0.2…v3.0.0

2025-07-02 - mezod v2.0.2

• Stable mainnet patch release (recommended for RPC nodes; optional for validators and seed nodes)
• Major required upgrade for testnet from v1.x.x to v2.x.x
• Release: v2.0.2
• Full diff: v2.0.1…v2.0.2

2025-06-11 - mezod v2.0.1

• Stable patch release recommended for RPC nodes and Ethereum sidecars
• Optional for validators and seed nodes
• Release: v2.0.1
• Full diff: v2.0.0…v2.0.1

2025-05-29 - mezod v2.0.0

• Stable mainnet release of mezod
• Release: v2.0.0
• Full diff: v1.0.0…v2.0.0

2025-05-28 - Mezo Mainnet Launch

Mezo Mainnet is now available! See the Getting Started docs to learn how to connect to Mainnet or head to mezo.org/overview to bridge your assets and begin using the platform.

2025-04-12 - Mezo Mainnet Launch Announced

Mezo Mainnet is scheduled for launch in May of 2025. Existing depositors must be aware of automatic bridging behavior. See the Mainnet Documentation and Mezo Mainnet Announcement blog post for more information.

2024-11-19 - Mezo Testnet Alpha

Mezo Testnet is now available.