The introduction of BlobScriptions challenges Ethereum’s blob technology, driving gas fees for blobs significantly higher. Despite the initial benefits to rollups from the Decun upgrade, the surge in dummy data postings may impact network performance and L2 fees.

Following the upgrade, transaction fees on Layer 2 networks like Optimism have dropped by over 90%, showcasing Dencun’s significant impact on reducing costs and enhancing the efficiency of L2 networks.

The upgrade promises a significant reduction in gas fees and enhanced transaction speed for L2 networks.

Ethereum developers have approved the list of improvements to be included in Ethereum's next major update. The update is expected at the end of 2023