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BLOG June 11, 2026
Neo X TestNet v0.6.0 Upgrade Announcement
We are releasing Neo X TestNet v0.6.0, introducing support for the Ethereum Osaka upgrade and Geth v1.16.9.
This release primarily includes the Execution Layer (EL) upgrade of the Fusaka roadmap, with the implementation of EIP-4844 further improved.
This version is fully compatible with Neo X v0.5.3 and does not require node resynchronization. However, it includes a protocol migration for the P2P network. Support for the old protocols will be removed in future versions, so please perform this upgrade as soon as possible.
Upgrade Instructions
Follow the instructions below to upgrade your node from v0.5.3 to v0.6.0:
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Gracefully stop the node.
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Replace the old binary with the new binary.
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For TestNet nodes only: do not remove the database. Reinitialize the database using the new binary and the new genesis configuration file with the following command: ./geth init --datadir ./node-datadir ./config/genesis.json
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Start the node.
Behavior Changes
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New BEACON/2 protocol for improved transaction, block, and blob synchronization
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The Osaka fork will be enabled at timestamp 1781500000 on TestNet
Improvements
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Base Geth source code updated to v1.16.9
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Upgrade the EL downloader to support post-merge backfilling
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Implement light verification for the CL beacon trust extension
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Remove unused compatibility code
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Improve the initial fetch height in the sidecar fetcher
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Refactor node synchronization status checks
Bug Fixes
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Remove redundant artifact uploads from the build workflow
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Fix unexpected CVs caused by transaction replacement
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Enforce hashDB for PrivNet state storage
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Correctly enable blob synchronization as configured
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Fix the RPC error response for under-policy-priced transactions
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Fix missing dBFT error returns and seal hash computation
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Fix argument mismatches between the CL miner and EL engine APIs
If you have any questions regarding this upgrade, please reach out in our Discord community. Beware of scammers’ DM. Follow Neo's official X account for future updates.