This Week in Lotus - Week 47 - 2023

Posted November 25, 2023 by  ‐ 2 min read

Calibration Upgrade Successful

The Calibration network upgrade has been a success! Thanks to all the operators and testers for your invaluable contributions.

Network Version 21 - 🍉Watermelon🍉

Mark your calendars! The mandatory nv21 upgrade is scheduled to upgrade at 2023-12-12T13:30:00Z, epoch 346938.

Use the Epoch Clock to find out the exact time, for your timezone.

  • Lotus v1.24.0 - Stable release
    • The corresponding Boost version for this release is v2.1.0.
  • Lotus v1.25.0 - Feature release
    • The corresponding Boost version for this release is [v2.1.0]

Please note, that the minimum :golang: Go version is now v1.20.7. Go version 1.21.x is not supported yet.

Make sure to check out the full changelog for each version 📖!

Pre network upgrade checklist:

  • Make sure that your system is either running Lotus v1.24.0 or Lotus v1.25.0.
  • Run lotus state actor-cids --network-version 21 and check that the manifest CID matches this CID:
Network Version: 21
Actor Version: 12
Manifest CID: bafy2bzaceapkgfggvxyllnmuogtwasmsv5qi2qzhc2aybockd6kag2g5lzaio

In the upcoming release candidate next week:

High Availability WindowPoSt and PC2 SupraSeal:

  • Our team has made significant progress with the High Availability (HA) for WindowPoSt and it’s soon ready for community testing. Keep an eye on the #fil-lotus-announcements
  • SupraSeal for PC2 is showing impressive performance, with benchmark times around 150 seconds on a A5000!


  • Storage Miner Actor Updates: We’ve implemented batch calls to ClaimAllocations during ProveCommitAggregate. This enhancement streamlines the process, reducing the gas cost per sector. (#1304)
  • Verified Registry Actor Optimization: Now processing allocation claims in batches by sector. This not only optimizes our system but also translates to lower costs for our users. (#1337)
  • Storage Miner/Market Actors Improvement: We’ve made batch calls to ActivateDeals by sector during ProveCommitAggregate. This improvement is a direct response to the gas increases since FIP0045. (#1310)

That’s it for the week! Have a great weekend! ☀️