On April 29th, Wanchain (Wanchain) main network released a new version of the GWAN client (V2.1.5). Compared with the previous version, the biggest change in this version is the reduction of of gas fees for transactions from the original 180Gwin to 1Gwin, making gas fees on Wanchain negligible. This makes DApp usage much cheaper, making Wanchain more attractive as a platform for both DApp creators and users.

How to Upgrade

Validators must complete the upgrade before 00:00 UTC on May 4th, 2020, so as to avoid causing PoS transaction to fail and affecting own PoS revenue.

Download GWAN (V2.1.5) here

Method 1

The update script runs as follows: ($ is the command prompt of the console, please do not copy)

$ rm updateMainnetValidator.sh

$ wget https://raw.githubusercontent.com/wanchain/go-wanchain/develop/loadScript/updateMainnetValidator.sh && chmod + x updateMainnetValidator.sh && ./updateMainnetValidator.sh

(Other commonly used scripts)

Method 2: Zero Downtime Method

Since shutting down the node during upgrade may result in loss of revenue, the upgrade can also be done without stopping your node as follows:

1. Keep the old node running and create a new cloud service node
2. Copy (or create) the keystore file to the ~ / .wanchain / keystore / directory of the new node
3. Use the update script to start the new node (The script is the same as Method 1)
4. Wait for the new node to complete synchronization
5. Stop old node between 7:00 and 8:00 AM Beijing time

About Wanchain

Wanchain is the infrastructure connecting the decentralized financial world. Wanchain’s live cross-blockchain solution is EVM-based, includes optional private transactions, and provides a decentralized, permissionless, and secure approach for interoperability. Wanchain has employees globally with teams in Beijing (China), Austin (USA), Kuala Lumpur (Malaysia), and Madrid (Spain).

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