Ethereum consensus-specs#5512 and #5544 merged, advancing FOCIL devnet-0 alpha.14 with IL store key updates at $1924.74 ETH price.

According to @jih2nn, updates are being made to FOCIL specifications by rebasing them on Hegotá. The Execution Layer (EL) spec and Engine APIs spec have shifted to Amsterdam, while adjustments to the Consensus Layer (CL) spec on Heze are underway. A critical change includes replacing the 8-second deadline with a 12-second attester view freeze to address equivocation visibility issues. These updates aim to improve synchronization among attesters, ensuring a unified view of network activities. Further revisions are expected post-EthCC alongside an EIP update.

According to Jihoon Song, Besu has begun integrating FOCIL on the Amsterdam framework, with an early draft pull request by RoboCopsGoneMad currently in the specification implementation stage. Teku has merged Heze fork boilerplate code, including FOCIL elements such as the InclusionList container, with Mehdi Aouadi planning progressive implementation. Meanwhile, Lodestar is finalizing ePBS devnet-0 and intends to rebase FOCIL once the network stabilizes.

According to @jih2nn, FOCIL has been CFI'd for the Ethereum Heka upgrade and the headliner process will start on January 8, lasting two months with the first half collecting headliner proposals and the second half deciding the headliners, source: @jih2nn on X dated Dec 18, 2025. For more information, see the EIP-8081 Heka Bogota Network Upgrade Meta-Thread on ethereum-magicians.org, source: ethereum-magicians.org EIP-8081 Heka Bogota Network Upgrade Meta-Thread.

According to @Gajpower, FOCIL should be prioritized ahead of ePBS on Ethereum’s roadmap to support unstoppable, low-risk DeFi rather than high-frequency trading, source: X post by @Gajpower on Nov 12, 2025. According to @Gajpower, this view positions Ethereum’s near-term technical focus toward low-risk DeFi infrastructure and away from HFT optimizations, source: X post by @Gajpower on Nov 12, 2025. According to @Gajpower, the post explicitly states that FOCIL ranks higher priority for unstoppable low-risk DeFi and includes a reference link to an X thread by Barnabé Monnot for context, source: X post by @Gajpower on Nov 12, 2025.

According to @jih2nn, FOCIL would add protocol-level censorship resistance that underpins Ethereum’s credible neutrality, and delaying its shipment would make integration harder, source: @jih2nn on X, Nov 11 2025. According to @jih2nn, adding FOCIL to the Glamsterdam fork increases complexity and would delay the fork, repeating Pectra cadence issues and creating timing risk for ETH upgrade expectations, source: @jih2nn on X, Nov 11 2025. According to @jih2nn, combining ePBS with FOCIL is more complex than delivering 6s with FOCIL, and FOCIL is lower priority than other scaling features, signaling potential scope pressure for Glamsterdam, source: @jih2nn on X, Nov 11 2025. According to @jih2nn, the community has strongly signaled preference for FOCIL and contributors are advancing it bottom up, indicating continued momentum regardless of cadence debates, source: @jih2nn on X, Nov 11 2025. According to @jih2nn, he supports shipping FOCIL in Glamsterdam and warns that deferring to a later H* fork is uncertain, which traders can read as roadmap feature-set uncertainty, source: @jih2nn on X, Nov 11 2025. According to @jih2nn, stakeholders are invited to comment via the Ethereum PM issue and the Ethereum Magicians thread, making these key venues to track timeline and scope decisions for ETH, source: github.com/ethereum/pm/issues/1793#issuecomment-3501249470 and ethereum-magicians.org/t/community-feedback-on-non-headlining-features-in-glamsterdam/26410.