<aside> ‼️

The FIL implementer call notes are public, unpublisized security issues shall not be disclosed in this doc.

</aside>

Async updates

2. Reworking red team agent for seamless onboarding. | |

Sync Agenda & Notes

Add agenda items here

• (Steve) Solstice https://docs.google.com/document/d/11MxMq5bmsJebTRk_a4z64vXAGCOUlSUo_BqWdv4PWCA/edit

• ✅Rod/William audit with Irene
• ✅Actors PR gets domain expert (@ZenGround0) review
• ✅ End to end integrations tests with contracts    - Depends on contract completion:       - ✅ Contract logic       - ✅ Upgrade behavior | | Fully Specified FIP | 2026-09-22 | - https://github.com/filecoin-project/solstice/issues/31
• Irene is leading the charge here to make sure all loose ends are included. | | Lotus RC for Calibnet | 2026-09-22 | Requirements:
• ✅Actor code freeze
• ✅ Lotus miner changes
• ✅ Establish calibration upgrade epoch
• Calibration contract deployment (filecoin-project/solstice#51)
• ✅Successful butterfly run
• ✅ Lotus integration tests

This happens at least one day after the actor code freeze because the new actor bundle needs to be “packed” into Lotus (docs). | | Calibnet upgrade date | 2026-09-24 | Requirement:

• Lotus RC
• Curio update
• Boost update

Usually this is a minimum +1 week after Lotus RC. We are shrinking the window for this upgrade given we are giving the 4 key calibration SPs advance notice that the upgrade is coming. (discussion thread with calibnet sps) We also need to make sure key infra providers also update in time (RPC providers, bootstrappers) | | Final Lotus release | [week of] 2026-09-28 (e.g., 2026-10-01)

| Can happen after a verified successful Calibnet upgrade. We know verification will take longer this time (at least a week) because of wanting to observe behavior after various "quarters" per the being-drafted test plan.

Note: there is concern that a week of testing in calibration may not be enough. We do have some fudge (can add a couple of days), but the next step is finishing the testing plan so we can assess the size. | | nv29 mainnet upgrade date | ~2nd half of October | • Usually there is a minimum of +2 weeks after Final Lotus release. • China Golden week is October 1-7. This means Chinese SP’s will have less than 2 weeks or working time to perform upgrades. • October 12 is a US holiday (Columbus day, Indigenous People’s day) • Filecoin’s 6th birthday is October 15. |

• Upgrade epoch: https://filecoinproject.slack.com/archives/C05P37R9KQD/p1790082688226249?thread_ts=1789648858.258019&cid=C05P37R9KQD

AI Meeting Notes

Solstice (NV29) Status

• Butterfly testing completed over the weekend successfully
• Solstice branch merged into Lotus main by Rod earlier today
• One remaining blocker: small built-in actors change (Kuba and William)
  • Adds extra event exposure for agent-driven governance contract usage
  • Produces Actors 19.0.1 release, then bubbles up to Lotus
• Solstice contracts will be redeployed; Lotus must update to new contract proxy addresses
• Lotus RC (1.37.0) expected within a couple of hours

Upgrade Timeline

• Target: Thursday 24th September, 1300 UTC
  • Activation epoch set one epoch before 1300 UTC for clean datetime boundary on Solstice Orders
• Open PR in Lotus to set upgrade epoch; merges once new actors bundle is ready
• Calibration sectors needed by Wednesday 22nd September before 1300 UTC so they’re proven in time
  • Sectors need varying amounts of QAP; size (32 GB vs. 512 MB) to be confirmed by James and Beck
  • James to check whether 512 MB sectors are usable on Calibration