> ## Documentation Index
> Fetch the complete documentation index at: https://base-a060aa97-docs-use-case-ia-overhaul.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.

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" icon="code">
    **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. The EL and CL each run an upgrade-signal poller that watches the contract and activates forks without requiring a client release.
  </Accordion>

  <Accordion title="EIP-8130: Native Account Abstraction" icon="code">
    **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 (Cobalt)" icon="code">
    **Base** · Precompile

    Cobalt will bring the following improvements to the B20 token standard: Pay transaction fees in B20s: as part of our rollout of EIP-8130, users will be able to pay transaction fees in B20s. Schedule Multiplier Updates: allows issuers to schedule token multiplier changes in advance.
  </Accordion>
</AccordionGroup>