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This page tracks configuration changes to the Base networks, including updates to block building, network fees, and other network parameters.

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Base Mainnet

DateChangeDocumentation
December 18, 2025Increased Minimum Base Fee to 500,000 weiMinimum Base Fee
December 4, 2025Enabled Minimum Base Fee (200,000 wei)Minimum Base Fee
September 17, 2025Enabled Per-Transaction Gas MaximumPer-Transaction Gas Maximum
September 11, 2025Ended testing Per-Transaction Gas MaximumPer-Transaction Gas Maximum
September 10, 2025Started testing Per-Transaction Gas MaximumPer-Transaction Gas Maximum
July 7, 2025Enabled FlashblocksFlashblocks
May 15, 2025Ended testing FlashblocksFlashblocks
May 15, 2025Started testing FlashblocksFlashblocks

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Base Sepolia

DateChangeDocumentation
November 20, 2025Enabled Minimum Base Fee (200,000 wei)Minimum Base Fee
September 3, 2025Enabled Per-Transaction Gas MaximumPer-Transaction Gas Maximum
February 25, 2025Enabled FlashblocksFlashblocks