> For the complete documentation index, see [llms.txt](https://stavr-team.gitbook.io/nodes-guides/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://stavr-team.gitbook.io/nodes-guides/mainnets/lumen/upgrade.md).

# Upgrade

***🟢UPDATE🟢***** 28.01.26**

*<mark style="color:yellow;">at Height -></mark>* 875000

```bash
cd $HOME
wget -O lumend https://github.com/network-lumen/blockchain/releases/download/v1.4.0/linux-amd64-v1.4.0 
chmod +x lumend
mv lumend $(which lumend)
lumend version --long | grep -e version -e commit
# version: v1.4.0
# commit: 292a8fa
systemctl restart provenanced && journalctl -fu provenanced -n100 -ocat
#consensus
curl -s http://localhost:26657/consensus_state  | jq '.result.round_state.height_vote_set[0].prevotes_bit_array'
```

&#x20;                              **GitHub**

<https://github.com/network-lumen>