Update minimum base fee docs for 1,000,000 wei

[niran]

• Update Base Mainnet minimum base fee example to 200,000 gas
• Add 2026-01-22 changelog entry for 1,000,000 wei increase

[cb-heimdall]

✅ Heimdall Review Status

Requirement	Status	More Info
Reviews	✅ 1/1	Denominator calculation Show calculation 1 if user is bot 0 1 if user is external 0 2 if repo is sensitive 0 From .codeflow.yml 1 Additional review requirements Show calculation Max 0 0 From CODEOWNERS 0 Global minimum 0 Max 1 1 1 if commit is unverified 0 Sum 1

[Copilot]

Pull request overview

Updates Base network fee documentation to reflect the new Base Mainnet minimum base fee and records the change in the configuration changelog.

Changes:

• Update Base Mainnet minimum base fee from 500,000 wei to 1,000,000 wei (0.001 gwei) and refresh the example transaction cost.
• Update the “Current Configuration” table to match the new minimum base fee.
• Add a January 22, 2026 changelog entry noting the increase to 1,000,000 wei.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
docs/base-chain/network-information/network-fees.mdx	Updates the minimum base fee value and example cost, plus the network fee table entry.
docs/base-chain/network-information/configuration-changelog.mdx	Adds a new changelog row documenting the minimum base fee increase.

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[Copilot]

The phrase “0.06 cents” is easy to misread as “$0.06” even though you mean $0.0006. Consider rewriting this to a clearer unit (e.g., “~$0.0006 (0.06¢)”) to avoid confusion for readers.

Suggested change

	The minimum base fee for Base Mainnet is 1,000,000 wei (0.001 gwei). This value may be periodically adjusted as we gather data on how it affects the chain. For reference, a minimum base fee of 0.001 gwei results in a cost of approximately 0.06 cents for a typical 200,000 gas transaction at an ETH price of $3000.
	The minimum base fee for Base Mainnet is 1,000,000 wei (0.001 gwei). This value may be periodically adjusted as we gather data on how it affects the chain. For reference, a minimum base fee of 0.001 gwei results in a cost of approximately $0.0006 (0.06¢) for a typical 200,000 gas transaction at an ETH price of $3000.