# Checkpoint #6: Oct 2025

DevFeed: [Checkpoint #6: Oct 2025](<https://devfeed.tech/articles/checkpoint-6-oct-2025-17186.md>)

Original publisher: [Read original article](<https://blog.ethereum.org/en/2025/10/01/checkpoint-6>)

Author: Nixo Rokish

Published: 2025-10-01T00:00:00Z

Content type: article

Language: en

Sources: [Ethereum Foundation Blog](<https://devfeed.tech/sources/ethereum-foundation-blog.md>)

Topics: [Ethereum](<https://devfeed.tech/topics/ethereum.md>), [Development](<https://devfeed.tech/topics/development.md>), [Testing](<https://devfeed.tech/topics/testing.md>), [Network](<https://devfeed.tech/topics/network.md>)

Tags: [2025](<https://devfeed.tech/tags/2025.md>), [developer](<https://devfeed.tech/tags/developer.md>), [ethereum](<https://devfeed.tech/tags/ethereum.md>), [fork](<https://devfeed.tech/tags/fork.md>), [monitor](<https://devfeed.tech/tags/monitor.md>), [network](<https://devfeed.tech/tags/network.md>), [research-development](<https://devfeed.tech/tags/research-development.md>), [test](<https://devfeed.tech/tags/test.md>), [testing](<https://devfeed.tech/tags/testing.md>), [updates](<https://devfeed.tech/tags/updates.md>), [upgrade](<https://devfeed.tech/tags/upgrade.md>)

## AI overview

This October 2025 checkpoint summarizes Ethereum core development, including the upcoming Fusaka testnet upgrade, Glamsterdam feature selections, testing beyond a 60 million gas limit, and lessons from the Holešky testnet fork and non-finality events.

## Source excerpt

Ethereum's weekly All Core Developer calls are a lot to keep up with, so this "Checkpoint" series aims for high-level updates roughly every 4-5 weeks, depending on what's happening in core development. See the previous update here....