Lodestar Standup 2026-16 (April 21, 2026)

[matthewkeil]

Lodestar Standup

Tuesday April 21, 2026, · 3:00 – 4:00pm UTC
Video call link: https://meet.google.com/fwq-bhrs-pey

Please post any topics/comments below and we will add it to the stand-up discussion. Examples are issues, discussions or proposals that require feedback, consensus from the team and/or community members.

Agenda

Announcements

Glamsterdam

• Reverted the dual-state cache and architecture stuff
• Have alpha.4 spec update PR ready for review and merge to unstable
• Have alpha.5 speed-run spec branch
• Will start to do interop with alpha.5 branch but
• Have a glamsterdam-devnet-0 branch that is alpha.4 ready
• Need to merge range sync and unknown sync to unstable asap

SSZ Engine API

• PR review of spec done by Nazar
• Created a discord thread on EthR&D to foster discussion
• Working with other teams to get some interop testing completed
• Barnabas set out a rough timeline of getting this on mainnet by end of the year but we think it can happen faster

Execution Proofs

• Will re-engage after interop

Fast Confirmation Rule

• Working on some performance improvements
• Will try to get this merged to unstable after basic improvements and we can do iterative improvement over time
• Is going to stay behind a feature flag for the foreseeable future

Zig Roadmap

• Working through structured logging
• Updated to 0.16 and PR is ready for review but likely wont get much time until after Interop
• Zapi 1.0.0 will be tagged ad released

Other Features

BLST

• Got the Zig code merged
• PR for lodestar is up and reviewed. Will hold off on merge until after interop

Backfill

• Working on first implementation for fulu and previous forks
• Updating the existing branch logic but will be fresh implementation

Backlog

[matthewkeil]

Meeting minutes:
https://docs.google.com/document/d/1sWP-GL8FaIyxsM0PAZ9AkG6RuuOi-NYC5mC5GisJyQI/edit?usp=sharing

Recording:
https://drive.google.com/file/d/1i_pmy7PBRpOrSg45hxNa_StIviy_WGB7/view?usp=sharing

Full transcript:
https://docs.google.com/document/d/1sWP-GL8FaIyxsM0PAZ9AkG6RuuOi-NYC5mC5GisJyQI/edit?usp=sharing