base · Himess · Oct 7, 2025
diff --git a/README.md b/README.md
@@ -13,7 +13,7 @@
 <!-- Badge row 2 - links and profiles -->
 
 [![Website base.org](https://img.shields.io/website-up-down-green-red/https/base.org.svg)](https://base.org)
-[![Blog](https://img.shields.io/badge/blog-up-green)](https://base.mirror.xyz/)
+[![Blog](https://img.shields.io/badge/blog-up-green)](https://blog.base.org/)
 [![Docs](https://img.shields.io/badge/docs-up-green)](https://docs.base.org/)
 [![Discord](https://img.shields.io/discord/1067165013397213286?label=discord)](https://base.org/discord)
 [![Twitter Base](https://img.shields.io/twitter/follow/Base?style=social)](https://twitter.com/Base)

diff --git a/docs/base-app/agents/chat-agents.mdx b/docs/base-app/agents/chat-agents.mdx
@@ -40,7 +40,7 @@ This guide will walk you through creating, testing, and deploying your first XMT
 - [Getting Started with XMTP (Video)](https://www.youtube.com/watch?v=djRLnWUvwIA)
 - [Building Agents on XMTP](https://github.com/ephemeraHQ/xmtp-agent-examples)
 - [Cursor Rules](https://github.com/ephemeraHQ/xmtp-agent-examples/blob/main/.cursor/rules/xmtp.mdc)
-- [XMTP Documentation](https://docs.xmtp.org/agents)
+- [XMTP Documentation](https://docs.xmtp.org/agents/get-started/build-an-agent)
 - [Faucets](https://portal.cdp.coinbase.com/products/faucet)
 
 **STEP 1: SET UP YOUR DEVELOPMENT ENVIRONMENT**

diff --git a/docs/base-app/agents/getting-started.mdx b/docs/base-app/agents/getting-started.mdx
@@ -22,7 +22,7 @@ This guide will walk you through creating, testing, and deploying your first XMT
 - [Getting Started with XMTP (Video)](https://www.youtube.com/watch?v=djRLnWUvwIA)
 - [Building Agents on XMTP](https://github.com/ephemeraHQ/xmtp-agent-examples)
 - [Cursor Rules](https://github.com/ephemeraHQ/xmtp-agent-examples/blob/main/.cursor/rules/xmtp.mdc)
-- [XMTP Documentation](https://docs.xmtp.org/agents)
+- [XMTP Documentation](https://docs.xmtp.org/agents/get-started/build-an-agent)
 - [Faucets](https://portal.cdp.coinbase.com/products/faucet)
 
 **STEP 1: SET UP YOUR DEVELOPMENT ENVIRONMENT**

diff --git a/docs/get-started/base-mentorship-program.mdx b/docs/get-started/base-mentorship-program.mdx
@@ -16,7 +16,7 @@ Base Mentors are experienced founders, operators, and subject matter experts acr
 | Name  | Affiliation |
 | ----- | ----- |
 | Alok Vasudev | [Standard Crypto](https://www.standardcrypto.vc/) |
-| Dariush Aghai | [Study Hall Creative](%20https://studyhall.design/about) |
+| Dariush Aghai | [Study Hall Creative](https://studyhall.design/about) |
 | David Espinel  | [Social Graph Ventures](https://www.socialgraph.vc/team) |
 | Ian Dutra  | [a16z crypto](https://a16zcrypto.com/team/ian-dutra/) |
 | Jack Gorman  | [Variant](https://variant.fund/people/jack-gorman/) |

diff --git a/docs/learn/arrays/arrays-exercise.mdx b/docs/learn/arrays/arrays-exercise.mdx
@@ -75,7 +75,7 @@ Add `public` functions called `resetSenders` and `resetTimestamps` that reset th
 <Note>
 #### Hey, where'd my NFT go!?
 
-[Testnets](/learn/deployment-to-testnet/test-networks) are not permanent! Base Goerli [will soon be sunset](https://base.mirror.xyz/kkz1-KFdUwl0n23PdyBRtnFewvO48_m-fZNzPMJehM4), in favor of Base Sepolia.
+[Testnets](/learn/deployment-to-testnet/test-networks) are not permanent! Base Goerli [will soon be sunset](https://blog.base.org/goerli-to-sepolia-evolving-bases-testnet-infrastructure), in favor of Base Sepolia.
 
 As these are separate networks with separate data, your NFTs **will not** transfer over.
 

diff --git a/docs/learn/control-structures/control-structures-exercise.mdx b/docs/learn/control-structures/control-structures-exercise.mdx
@@ -40,7 +40,7 @@ Create a function called `doNotDisturb` that accepts a `uint` called `_time`, an
 <Note>
 #### Hey, where'd my NFT go!?
 
-[Testnets](/learn/deployment-to-testnet/test-networks) are not permanent! Base Goerli [will soon be sunset](https://base.mirror.xyz/kkz1-KFdUwl0n23PdyBRtnFewvO48_m-fZNzPMJehM4), in favor of Base Sepolia.
+[Testnets](/learn/deployment-to-testnet/test-networks) are not permanent! Base Goerli [will soon be sunset](https://blog.base.org/goerli-to-sepolia-evolving-bases-testnet-infrastructure), in favor of Base Sepolia.
 
 As these are separate networks with separate data, your NFTs **will not** transfer over.
 

diff --git a/docs/learn/deployment-to-testnet/deployment-to-base-sepolia-sbs.mdx b/docs/learn/deployment-to-testnet/deployment-to-base-sepolia-sbs.mdx
@@ -36,7 +36,7 @@ Be safe and use separate wallets for separate purposes.
 
 First, add the [Coinbase](https://www.coinbase.com/wallet) or [Metamask](https://metamask.io/) wallet to your browser, and then [set up] a new wallet. As a developer, you need to be doubly careful about the security of your wallet! Many apps grant special powers to the wallet address that is the owner of the contract, such as allowing the withdrawal of all the Ether that customers have paid to the contract or changing critical settings.
 
-Once you've completed the wallet setup, enable developer settings and turn on testnets ([Coinbase Settings](https://docs.cloud.coinbase.com/wallet-sdk/docs/developer-settings), [Metamask Settings](https://support.metamask.io/hc/en-us/articles/13946422437147-How-to-view-testnets-in-MetaMask)).
+Once you've completed the wallet setup, enable developer settings and turn on testnets ([Coinbase Settings](https://docs.cloud.coinbase.com/wallet-sdk/docs/developer-settings), [Metamask Settings](https://support.metamask.io/configure/networks/how-to-view-testnets-in-metamask/)).
 
 ### Add Base Sepolia to your Wallet
 

diff --git a/docs/learn/deployment-to-testnet/deployment-to-testnet-exercise.mdx b/docs/learn/deployment-to-testnet/deployment-to-testnet-exercise.mdx
@@ -19,7 +19,7 @@ Stay tuned for updates!
 <Note>
 #### Hey, where'd my NFT go!?
 
-[Testnets](/learn/deployment-to-testnet/test-networks) are not permanent! Base Goerli [will soon be sunset](https://base.mirror.xyz/kkz1-KFdUwl0n23PdyBRtnFewvO48_m-fZNzPMJehM4), in favor of Base Sepolia.
+[Testnets](/learn/deployment-to-testnet/test-networks) are not permanent! Base Goerli [will soon be sunset](https://blog.base.org/goerli-to-sepolia-evolving-bases-testnet-infrastructure), in favor of Base Sepolia.
 
 As these are separate networks with separate data, your NFTs **will not** transfer over.
 

diff --git a/docs/learn/error-triage/error-triage-exercise.mdx b/docs/learn/error-triage/error-triage-exercise.mdx
@@ -80,7 +80,7 @@ contract ErrorTriageExercise {
 <Note>
 #### Hey, where'd my NFT go!?
 
-[Testnets](/learn/deployment-to-testnet/test-networks) are not permanent! Base Goerli [will soon be sunset](https://base.mirror.xyz/kkz1-KFdUwl0n23PdyBRtnFewvO48_m-fZNzPMJehM4), in favor of Base Sepolia.
+[Testnets](/learn/deployment-to-testnet/test-networks) are not permanent! Base Goerli [will soon be sunset](https://blog.base.org/goerli-to-sepolia-evolving-bases-testnet-infrastructure), in favor of Base Sepolia.
 
 As these are separate networks with separate data, your NFTs **will not** transfer over.
 

diff --git a/docs/learn/foundry/generate-random-numbers-contracts.md b/docs/learn/foundry/generate-random-numbers-contracts.md
@@ -399,5 +399,5 @@ Congratulations! You have successfully deployed and interacted with a smart cont
 
 To learn more about VRF and using Supra dVRF to generate random numbers within your smart contracts on Base, check out the following resources:
 
-- [Oracles](https://docs.base.org/tools/oracles)
+- [Oracles](https://docs.base.org/base-chain/tools/oracles)
 - [Supra dVRF - Developer Guide V2](https://supraoracles.com/docs/vrf/v2-guide)
diff --git a/docs/learn/imports/imports-exercise.mdx b/docs/learn/imports/imports-exercise.mdx
@@ -74,7 +74,7 @@ To simplify the verification of your contract on a blockchain explorer like Base
 <Note>
 #### Hey, where'd my NFT go!?
 
-[Testnets](/learn/deployment-to-testnet/test-networks) are not permanent! Base Goerli [will soon be sunset](https://base.mirror.xyz/kkz1-KFdUwl0n23PdyBRtnFewvO48_m-fZNzPMJehM4), in favor of Base Sepolia.
+[Testnets](/learn/deployment-to-testnet/test-networks) are not permanent! Base Goerli [will soon be sunset](https://blog.base.org/goerli-to-sepolia-evolving-bases-testnet-infrastructure), in favor of Base Sepolia.
 
 As these are separate networks with separate data, your NFTs **will not** transfer over.
 

diff --git a/docs/learn/inheritance/inheritance-exercise.mdx b/docs/learn/inheritance/inheritance-exercise.mdx
@@ -101,7 +101,7 @@ contract InheritanceSubmission {
 <Note>
 #### Hey, where'd my NFT go!?
 
-[Testnets](/learn/deployment-to-testnet/test-networks) are not permanent! Base Goerli [will soon be sunset](https://base.mirror.xyz/kkz1-KFdUwl0n23PdyBRtnFewvO48_m-fZNzPMJehM4), in favor of Base Sepolia.
+[Testnets](/learn/deployment-to-testnet/test-networks) are not permanent! Base Goerli [will soon be sunset](https://blog.base.org/goerli-to-sepolia-evolving-bases-testnet-infrastructure), in favor of Base Sepolia.
 
 As these are separate networks with separate data, your NFTs **will not** transfer over.
 

diff --git a/docs/learn/mappings/mappings-exercise.mdx b/docs/learn/mappings/mappings-exercise.mdx
@@ -57,7 +57,7 @@ Add a function called `resetUserFavorites` that resets `userFavorites` for the s
 <Note>
 #### Hey, where'd my NFT go!?
 
-[Testnets](/learn/deployment-to-testnet/test-networks) are not permanent! Base Goerli [will soon be sunset](https://base.mirror.xyz/kkz1-KFdUwl0n23PdyBRtnFewvO48_m-fZNzPMJehM4), in favor of Base Sepolia.
+[Testnets](/learn/deployment-to-testnet/test-networks) are not permanent! Base Goerli [will soon be sunset](https://blog.base.org/goerli-to-sepolia-evolving-bases-testnet-infrastructure), in favor of Base Sepolia.
 
 As these are separate networks with separate data, your NFTs **will not** transfer over.
 

diff --git a/docs/learn/new-keyword/new-keyword-exercise.mdx b/docs/learn/new-keyword/new-keyword-exercise.mdx
@@ -76,7 +76,7 @@ The `AddressBookFactory` contains one function, `deploy`. It creates an instance
 <Note>
 #### Hey, where'd my NFT go!?
 
-[Testnets](/learn/deployment-to-testnet/test-networks) are not permanent! Base Goerli [will soon be sunset](https://base.mirror.xyz/kkz1-KFdUwl0n23PdyBRtnFewvO48_m-fZNzPMJehM4), in favor of Base Sepolia.
+[Testnets](/learn/deployment-to-testnet/test-networks) are not permanent! Base Goerli [will soon be sunset](https://blog.base.org/goerli-to-sepolia-evolving-bases-testnet-infrastructure), in favor of Base Sepolia.
 
 As these are separate networks with separate data, your NFTs **will not** transfer over.
 

diff --git a/...-development/account-abstraction/account-abstraction-on-base-using-biconomy.mdx b/...-development/account-abstraction/account-abstraction-on-base-using-biconomy.mdx
@@ -38,11 +38,11 @@ This tutorial requires you to have a wallet. You can create a wallet by download
 
 ### Wallet funds
 
-To complete this tutorial, you will need to fund a wallet with ETH on Base Goerli.
+To complete this tutorial, you will need to fund a wallet with ETH on Base Sepolia.
 
 The ETH is required for covering gas fees associated with deploying smart contracts to the network.
 
-- To fund your wallet with ETH on Base Goerli, visit a faucet listed on the [Base Faucets](https://docs.base.org/base-chain/tools/network-faucets) page.
+- To fund your wallet with ETH on Base Sepolia, visit a faucet listed on the [Base Faucets](https://docs.base.org/base-chain/tools/network-faucets) page.
 
 ## What is Biconomy?
 
@@ -151,20 +151,20 @@ cast wallet list
 To deploy the smart contract, you can use the `forge create` command. The command requires you to specify the smart contract you want to deploy, an RPC URL of the network you want to deploy to, and the account you want to deploy with.
 
 <Info>
-Your wallet must be funded with ETH on the Base Goerli testnet to cover the gas fees associated with the smart contract deployment. Otherwise, the deployment will fail.
+Your wallet must be funded with ETH on the Base Sepolia testnet to cover the gas fees associated with the smart contract deployment. Otherwise, the deployment will fail.
 
 To get testnet ETH, see the [prerequisites](#prerequisites).
 </Info>
 
-To deploy the smart contract to the Base Goerli testnet, run the following command:
+To deploy the smart contract to the Base Sepolia testnet, run the following command:
 
 ```bash
-forge create ./src/Counter.sol:Counter --rpc-url https://goerli.base.org --account deployer
+forge create ./src/Counter.sol:Counter --rpc-url https://sepolia.base.org --account deployer
 ```
 
 When prompted, enter the password that you set earlier, when you imported your wallet's private key.
 
-After running the command above, the contract will be deployed on the Base Goerli test network. You can view the deployment status and contract by using a [block explorer](/base-chain/tools/block-explorers).
+After running the command above, the contract will be deployed on the Base Sepolia test network. You can view the deployment status and contract by using a [block explorer](/base-chain/tools/block-explorers).
 
 ## Setting up the Paymaster and Bundler
 
@@ -177,7 +177,7 @@ Add and register a Paymaster by completing the following steps:
 1. Visit the sign in to the [Biconomy Dashboard](https://dashboard.biconomy.io/)
 1. From the dashboard, select the **Paymasters** tab and click **Add your first Paymaster**
 1. Provide a **Name** for your paymaster
-1. Select **Base Goerli** from the **Network** dropdown
+1. Select **Base Sepolia** from the **Network** dropdown
 1. Click **Register**
 
 You should now have a registered Biconomy paymaster.
@@ -217,7 +217,7 @@ Set up and fund the paymaster's gas tank by completing the following steps:
 1. From the dashboard, select the **Bundlers** tab
 
 <Info>
-At the time of writing this tutorial, the Bundler service is still under development, however a **Bundler URL** is provided for testing out UserOperations on test networks. You can specify the chain ID **84531** to use the Bundler URL on **Base Goerli** testnet.
+At the time of writing this tutorial, the Bundler service is still under development, however a **Bundler URL** is provided for testing out UserOperations on test networks. You can specify the chain ID **84531** to use the Bundler URL on **Base Sepolia** testnet.
 </Info>
 
 ## Setting up the frontend