> ## Documentation Index
> Fetch the complete documentation index at: https://base-a060aa97-docs-base-protocol-rename.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

> Cobalt adds native account abstraction with EIP-8130, makes improvements to the B20 token standard, and introduces dynamic node upgrades.

|         | Status   | Date           |
| ------- | -------- | -------------- |
| Sepolia | Planning | September 2026 |
| Mainnet | Planning | September 2026 |

## Features

<AccordionGroup>
  <Accordion title="Dynamic Upgrades">
    **Base** · RPC

    Dynamic Upgrades introduces an Ethereum smart contract that stores upgrade timestamps for Base nodes, allowing nodes to query the contract and apply changes live. This change will be rolled out in metrics-only mode for Cobalt as data is collected to validate that the upgrades work smoothly.
  </Accordion>

  <Accordion title="EIP-8130: Native Account Abstraction">
    **EIP** · Accounts

    EIP-8130 will bring Native Account Abstraction to Base and allow us to keep transactions opinionated and optimizable. Compared to the previous generation of Smart Accounts, we've been able to dramatically reduce transaction overhead.
  </Accordion>

  <Accordion title="B20 Improvements">
    **Base** · Precompile

    Cobalt brings improvements to the B20 token standard: pay transaction fees in B20s, schedule multiplier updates, transfer blocked simplification, and new Union and Intersect policies.
  </Accordion>
</AccordionGroup>