> ## Documentation Index
> Fetch the complete documentation index at: https://base-a060aa97-docs-ia-overhaul-v2.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

> Denim introduces native blocks at a 200ms cadence, millisecond-resolution RPC timestamps, and onchain millisecond time through BaseTime.

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

## Features

<AccordionGroup>
  <Accordion title="200ms Blocks">
    **Base** · Execution

    Base will produce native L2 blocks at a 200ms cadence. Each block has its own number, hash, state root, receipts, and unsafe-to-finalized lifecycle. Flashblocks will be deprecated as part of this release.
  </Accordion>
</AccordionGroup>