We have recently released a new Bor version that fixes the “Header not found” issues and issues co-related to it.
This upgrade is not a time block event, so you don’t need to upgrade it in any urgency. You can upgrade this at your convenience.
To upgrade your Bor on your Sentry and Validator node, please follow the instructions below:
Please ensure that you upgrade the Sentry node first and then the Validator node but do ensure to upgrade both nodes with the latest Bor upgrade.
git checkout v0.2.4
sudo service bor stop
sudo service bor start
The same steps are for your Validator nodes as well.
Ideally, you shouldn’t be facing any issues whilst doing the upgrade. But if you do face any issues please post it on the #validator-queries channel on Discord and we will look into it.