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BLOG July 9, 2026

Neo-CLI v3.10.1 TestNet and MainNet Upgrade Notice

Neo-CLI v3.10.1 has been released:
https://github.com/neo-project/neo-node/releases/tag/v3.10.1

Note: Neo-CLI v3.10.1 activates the Gorgon hardfork. Please upgrade before the fork heights listed below. A chain resynchronization is not required for this upgrade; however, if you are reusing existing node data, please review the TokensTracker storage path reminder below.

The TestNet software upgrade is scheduled for July 10, 2026. If everything runs stably, the MainNet software upgrade will follow on July 28, 2026.

Network

HF_Gorgon Height

Estimated Fork Time (UTC)

TestNet

17,960,000

~Morning, July 24, 2026

MainNet

12,020,000

~Morning, August 1, 2026

 

Estimated fork times are based on the current heights (TestNet: 17,516,539; MainNet: 11,342,204) and an average block production rate of approximately 28,000 blocks per day (3-second block time). Actual times may vary.

Although v3.10.1 is primarily a hotfix release, it also activates the Gorgon hardfork and is therefore a mandatory upgrade. The principal changes in this release are as follows:

TokensTracker storage path reminder

PR #987 appends the NetworkId to TokensTracker's default storage directory.

Default TokensTracker data folder names:

  • TestNet: TokenBalanceData_3554334E

  • MainNet: TokenBalanceData_334F454E

If you are reusing existing node data, rename the TokensTracker data folder to match the new naming convention.

Gorgon hardfork activation

Enables the Gorgon hardfork at the scheduled TestNet and MainNet fork heights, including:

  • SHL/SHR fix

  • VM JumpTable refactoring

  • Updated cryptographic verification

Neo: #4516 · #4381 · #4540

RpcServer wallet fee calculation fix

The sendtoaddress, sendfrom, and sendmany RPC methods now use CalculateNetworkFee.

neo-node: #1080

DeferredRelay startup fix

Fixes an issue where newly initialized node databases could fail to start when the ledger height was uninitialized.

neo-node: #1077

Docker image fixes

Fixes to the official Docker image startup scripts.

neo-node: #1074

 

If you have any questions, please visit the Neo Discord community for support.

Written by:
NGD