Staging for Main 2.1.1 Upgrade

Protocol version 2.1.1 upgrade will occur at Era 20517, around 2025-12-11 14:55 UTC.

Summary of changes in this upgrade:

• https://github.com/casper-network/casper-node/releases/tag/v2.1.1
• https://github.com/casper-network/casper-node/releases/tag/v2.1.0

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Staging the Upgrade

Run:

sudo -u casper casper-node-util stage_protocols casper.conf

Note: the latest version of casper-node-launcher installs casper-node-util this can also be installed with sudo apt install casper-node-util, without restarting the node. If you do not want to install, you can still use the deprecated /etc/casper/node_util.py with sudo -u casper /etc/casper/node_util.py stage_protocols casper.conf.

This should show 2_0_4 already staged and 2_1_1 now staging.

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casper-node-util watch

Should show: Next Upgrade: {'activation_point': 20517, 'protocol_version': '2.1.1'}