arbitrum mainnet support (#1714)

Author: aelmanaa

src/content/chainlink-functions/resources/release-notes.mdx

@@ -6,6 +6,10 @@ title: "Chainlink Functions Release Notes"
 
 import { Aside } from "@components"
 
+## Arbitrum Mainnet support - 2024-01-10
+
+Chainlink Functions is available on [Arbitrum Mainnet](/chainlink-functions/supported-networks#arbitrum-mainnet).
+
 ## Module imports and new testnets - 2023-12-15
 
 - You can use external module imports with Chainlink Functions source code on testnet networks. See the [Using Imports with Functions](/chainlink-functions/tutorials/importing-packages) tutorial to see an example of how to import and use imported modules with your Functions source code. This feature requires the [Functions Toolkit NPM package](https://www.npmjs.com/package/@chainlink/functions-toolkit/v/0.2.7) `v0.2.7` or later.

src/content/chainlink-functions/supported-networks.mdx

@@ -110,6 +110,21 @@ Read the [LINK Token Contracts](/resources/link-token-contracts) page to learn w
 
 ## Arbitrum
 
+### Arbitrum Mainnet
+
+| Item                               | Value                                                                                                                                                                    |
+| ---------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
+| Functions router                   | <Address contractUrl="https://arbiscan.io/address/0x97083e831f8f0638855e2a515c90edcf158df238" />                                                                         |
+| <DonId client:load/>               | <CopyText text="fun-arbitrum-mainnet-1" code /> / <CopyText text="0x66756e2d617262697472756d2d6d61696e6e65742d3100000000000000000000"code format formatType="bytes32" /> |
+| Encrypted secrets upload endpoints | <ul><li><CopyText text="https://01.functions-gateway.chain.link/" code /></li><li><CopyText text="https://02.functions-gateway.chain.link/" code /></li></ul>            |
+
+| Billing Item                                    | Value       |
+| ----------------------------------------------- | ----------- |
+| Premium fees                                    | 0.004 LINK  |
+| Request threshold (withdrawing funds)           | 10 requests |
+| Cancellation fees (withdrawing funds)           | 0.1 LINK    |
+| Minimum balance for uploading encrypted secrets | 0.1 LINK    |
+
 ### Arbitrum Sepolia testnet
 
 | Item                               | Value                                                                                                                                                                         |