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

# Jovian

> Overview of the Jovian hardfork, introducing a configurable minimum base fee and a DA footprint gas scalar for improved fee market stability.

## Activation Timestamps

| Network   | Activation timestamp                   |
| --------- | -------------------------------------- |
| `mainnet` | `1764691201` (2025-12-02 16:00:01 UTC) |
| `sepolia` | `1763568001` (2025-11-19 16:00:01 UTC) |

## Execution Layer

* [Minimum Base Fee](/base-chain/specs/upgrades/jovian/exec-engine#minimum-base-fee)
* [DA Footprint Limit](/base-chain/specs/upgrades/jovian/exec-engine#da-footprint-limit)
* [Operator Fee](/base-chain/specs/upgrades/jovian/exec-engine#operator-fee)

## Consensus Layer

* [Network upgrade transactions](/base-chain/specs/upgrades/jovian/derivation#network-upgrade-transactions) applied during derivation
* Auto-upgrading and extension of the [L1 Attributes Predeployed Contract](/base-chain/specs/upgrades/jovian/l1-attributes)
  (also known as `L1Block` predeploy)

## Smart Contracts

* [System Config](/base-chain/specs/upgrades/jovian/system-config)