v19 alpha3

uni-6/12_V19_BETA_3_UPGRADE.md

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+# Uni v19 Beta 3 Upgrade
+
+More info on the changes in this proposed release can be found [on the release page](https://github.com/CosmosContracts/juno/releases/tag/v19.0.0-alpha.3).
+
+The Upgrade is scheduled for block `7492708`, which should be about _1600 UTC on Monday 29th Jan_. [Here's a countdown](https://testnet.mintscan.io/juno-testnet/blocks/7492708).
+
+As always, for unattended updates, [Cosmovisor is your friend](https://docs.cosmos.network/main/build/tooling/cosmovisor).
+
+## Installation
+
+```bash
+* Go Version 1.21+ is required
+
+# get the new version
+git fetch --tags && git checkout v19.0.0-alpha.3
+make build && make install
+
+junod version --long | grep "cosmos_sdk_version\|commit\|version:"
+# commit: 46bc071f91225d2dcf06897d7b71f668f5508087
+# cosmos_sdk_version: v0.47.6
+# version: v19.0.0-alpha.3
+
+# if you are using cosmovisor you then need to make a new dir and copy this new binary
+mkdir -p $DAEMON_HOME/cosmovisor/upgrades/v1900alpha3/bin
+cp $HOME/go/bin/junod $DAEMON_HOME/cosmovisor/upgrades/v1900alpha3/bin
+
+# find out what version you are about to run - should be the same as the tag
+$DAEMON_HOME/cosmovisor/upgrades/v1900alpha3/bin/junod version
+```