Add release info for sui-full-node doc

docs/content/guides/operator/updates.mdx

@@ -3,13 +3,32 @@ title: Updating a Full Node
 description: Update your Sui Full node to the latest version to remain in sync with the network.
 ---
 
-## Release process
+## Sui release process
+
+Each Sui network is deployed on a consistent schedule. There are extenuating circumstances that might delay releases occasionally, but these delays are rare and communicated through [official channels](#communication).
+
+- `devnet`: Deployed every week on Mondays.
+- `testnet`: Deployed every week on Tuesdays.
+- `mainnet`: Deployed every two weeks on Wednesdays.
+
+:::info
+ For additional details, see each network's [release schedule and configuration](https://sui.io/networkinfo).
+ :::
 
 Whenever Sui releases a new version, you must update your Full node with the release to ensure compatibility with the network it connects to. For example, if you use Sui Testnet you should install the version of Sui running on Sui Testnet.
 
 Any release that contains a protocol change will need to be followed before the protocol upgrade takes place (when enough stake within the validator set upgrades, the new protocol version is enacted in the next epoch).
 If you do not update your Full node, you will not be able to connect to the network after the protocol upgrade takes place.
 
+## Communication
+
+Releases are announced on [Sui Discord server](https://discord.com/invite/sui) and [node-operators](https://groups.google.com/a/groups.sui.io/g/node-operators) Google group.
+
+### Discord channels
+- `devnet`: [`#devnet-updates`](https://discord.com/channels/916379725201563759/1004638487078772736)
+- `testnet`: [`#tn-validator-announcements`](https://discord.com/channels/916379725201563759/1003660994381353101), [`#testnet-updates`](https://discord.com/channels/916379725201563759/1095151359642304612), ⁠and [`#node-announcements`](https://discord.com/channels/916379725201563759/1002231298888306718) channels.
+- `mainnet`: [`⁠#mn-validator-announcements`](https://discord.com/channels/916379725201563759/1093852827627040768), [`#mainnet-updates`](https://discord.com/channels/916379725201563759/1103082453792464906), and [`#node-announcements`](https://discord.com/channels/916379725201563759/1002231298888306718) channels.
+
 ## Update your Full node 
 
 You can track the latest version of Sui on the [Sui Releases](https://github.com/MystenLabs/sui/releases) page on GitHub.