Grin's first hard fork is scheduled to start in July: the division of labor is clear, only the east wind is missing

Grin will have its first hard fork in July, with algorithm adjustments, protocol upgrades, and deprecated versions. Are you aware of them all?

Grin's first hard fork (mid-July)

Block height and date

Summarize

Grin indicated at the beginning that there will be 4 forks in the first two years after launch. Each fork is 60*24*7*26=262,080 blocks (nearly 6 months apart). The block heights set in the code are 262,080, 524,160, 786,240 and 1,048,320. The first network upgrade is expected in mid-July, and grin node, grin-wallet, and grin-miner will be upgraded to version 2.0.0 or higher. The first batch of versions is expected to be released in June.

This article will outline the major changes in the new upgrade, as well as the timing and communication considerations to ensure a smooth upgrade and give ecosystem participants ample time to prepare.

Key points:

Grin v2.2.0 is a major network upgrade. Users only need to update the binary file for subsequent transactions. Stored Grin is not affected. Beware of fake news that encourages you to transfer tokens.

Big Changes

node:

· Algorithm adjustment. Grin will adjust the PoW algorithm every 6 months to prevent ASIC from building proprietary hardware to manipulate mining. Therefore, the previous Cuckaroo29 is updated to Cuckarood29, and the mining software must upgrade the solver.

Cuckarood29 definition: Hard fork in mid-July, Cuckaroo29 upgraded to Cuckarood29.

Cuckarood repository: https://github.com/tromp/cuckoo

Corresponding Grin HF PoW performance: https://github.com/mimblewimble/grin/pull/2866

Grin Miner Improvement Request: https://github.com/mimblewimble/grin-miner/pull/214

wallet:

Changes in the bulletproof rewind plan: https://github.com/mimblewimble/grin-wallet/issues/105. The rewind plan increases the flexibility of the wallet and the ability to hide information with bulletproofs. In order to trade on the forked chain, the wallet is forced to upgrade to version v2.2.0 or higher.

API upgraded to V2: V1 REST API upgraded to V2 JSON-RPC API, the upgrade files are as follows:

ForeignAPI

OwnerAPI

Slate V0 (created by Grin versions < 1.0.2) will be deprecated and will not be compatible with new versions of Grin.

Therefore, mining pools, mining machines, exchanges, and all participants of the grin protocol must upgrade to version v2.2.0 or higher. Unupgraded nodes will not be able to package new blocks after the fork, and unupgraded wallets will not be able to create and publish transactions after the fork.

Operation requirements

schedule

To ensure a smooth upgrade for everyone, Grin developers set the following timeline:

Note: The actual date may vary slightly depending on the specific situation, but the hard fork block height remains unchanged.

communicate

Prior to the hard fork, the Grin team and community will communicate through the following mediums:

Source: First Class Warehouse