add v6 upgrade

README.md

@@ -217,6 +217,8 @@ _Make sure to join our [Discord](https://discord.gg/chihuahua) and contact a mod
 
 # Chain Upgrades
 
+- **v6** _(v6)_ - Block 10666000 - (2023-12-23 15:30:00)
+  - [Upgrade Instruction](https://github.com/ChihuahuaChain/chihuahua/blob/main/mainnet/UPGRADES/v6)
 - **v503** _(v5.0.4)_ - Block 9430000 - (2023-09-28 16:30:00) - (Halt height 9431130 due to wrong wasmd/wasmvm - Use v5.0.4 on directory v503)
   - [Upgrade Instruction](https://github.com/ChihuahuaChain/chihuahua/blob/main/mainnet/UPGRADES/v503)
 - **v502** _(v5.0.2)_ - Block 9180000 - (2023-09-11 15:00:00)

mainnet/UPGRADES/v6/README.md

@@ -0,0 +1,38 @@
+# Chihuahua v6 Upgrade
+
+The Upgrade is scheduled for block `10666000`. A countdown clock is [here](https://www.mintscan.io/chihuahua/blocks/9430000)
+
+This guide assumes that you use cosmovisor to manage upgrades.
+
+## If you are syncing from 0 you need to apply v6 at height 10666000
+
+```bash
+# get the new version
+cd chihuahua
+git fetch --all
+git checkout v6
+make install
+```
+
+# check the version
+
+```bash
+# should be v6
+chihuahuad version
+# Should be commit c49c60854b6d167ea7c912ac4fd368d1546fa7dd
+chihuahuad version --long | grep commit
+```
+
+# Make new directory and copy binary
+
+```bash
+mkdir -p $HOME/.chihuahuad/cosmovisor/upgrades/v6/bin
+cp $HOME/go/bin/chihuahuad $HOME/.chihuahuad/cosmovisor/upgrades/v6/bin
+```
+
+# check the version again
+
+```bash
+# should be v6
+$HOME/.chihuahuad/cosmovisor/upgrades/v6/bin/chihuahuad version
+```