# 2025-09-15 Technical Fellowship OpenDev Call

**URL:** <https://forum.polkadot.network/t/2025-09-15-technical-fellowship-opendev-call/15668>\
**Category:** Ecosystem\
**Tags:** fellowship\
**Created:** [October 27, 2025, 8:46am UTC](https://forum.polkadot.network/t/2025-09-15-technical-fellowship-opendev-call/15668 "2025-10-27T08:46:50Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![alice\_und\_bob](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.polkadot.network/alice_und_bob/32/10098_2.png) [@alice\_und\_bob](https://forum.polkadot.network/u/alice_und_bob)\
**Post date:** [October 27, 2025, 8:46am UTC](https://forum.polkadot.network/t/2025-09-15-technical-fellowship-opendev-call/15668/1 "2025-10-27T08:46:50Z")

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- Video: [https://www.youtube.com/watch?v=pMksa4d9a\_Y](https://www.youtube.com/watch?v=pMksa4d9a_Y)
- Previous: [2025-08-19 Technical Fellowship OpenDev Call](https://forum.polkadot.network/t/2025-08-19-technical-fellowship-opendev-call/15024)

## Summary

- 500ms blocks approaching finish line, separating block latency from core resource usage

- Elastic Scaling launched on Polkadot - celebrating Polkadot 2.0

- AH migration code complete, waiting for reviews and tests - Kusama deadline October 7th

- Fellowship retention vote loophole fixed for 32 initial members

- JAM gas cost model: SIMD implementation progressing, basic algorithm translated

- JAM conformance fuzzing: 18-19 teams enrolled, daily bug reporting, preparing for milestone one audit

- Proof of possession work: added support for two-proof crypto types

- Hard pressure referendum passed, implementation ready for review

- Fungible trait migration ongoing for multiple pallets

- Polkadot Builder Party hackathon announced for early October

## Basti (Rank 6)

- 500ms blocks

- host functions discussion

## Elastic Scaling celebration

- referendum passed, feature live on Polkadot

- 4 validators still need to upgrade (old version causing disputes)

## Oliver (Rank 3)

- Fellowship housekeeping

- Asset Hub migration

## Jan Bujak (Rank 3)

- JAM gas cost model

## Muharem (Rank 2)

- Asset Hub migration

## Davide Galassi (Rank 2)

- JAM conformance testing

- Oliver: asked about reusing infrastructure for official process

## Seyed Lavasani (Rank 1)

- proof of possession work

- BLS and Westend discussion

- host functions discussion with Basti

- RBLS(?) library optimization

## Dom Valles (Rank 1)

- “hard pressure” proposal work

- timeline discussion

- next up: RFC 150 - voting while delegating

## Ludovic Dominguez (Rank 1)

- new Fellowship member (joined ~2 weeks prior)

- background

- current work

## Pablo (Rank 2)

- fungible trait migration

- pallet-identity migration

- coordinating with Ludovic to avoid duplicate work

## Additional Notes

- Polkadot Builder Party Hackathon

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<div class="post-metadata">

**Author:** ![florentina57](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.polkadot.network/florentina57/32/7854_2.png) [@florentina57](https://forum.polkadot.network/u/florentina57)\
**Post date:** [October 27, 2025, 10:07am UTC](https://forum.polkadot.network/t/2025-09-15-technical-fellowship-opendev-call/15668/2 "2025-10-27T10:07:58Z")

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Hi Tommi @alice_und_bob thanks for the summary of last month’s call. Will you also be posting the one from October soon?

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**Author:** ![alice\_und\_bob](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.polkadot.network/alice_und_bob/32/10098_2.png) [@alice\_und\_bob](https://forum.polkadot.network/u/alice_und_bob)\
**Post date:** [October 27, 2025, 11:34am UTC](https://forum.polkadot.network/t/2025-09-15-technical-fellowship-opendev-call/15668/3 "2025-10-27T11:34:04Z")

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hi @florentina57, yes likely today

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<div class="post-metadata">

**Author:** ![alice\_und\_bob](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.polkadot.network/alice_und_bob/32/10098_2.png) [@alice\_und\_bob](https://forum.polkadot.network/u/alice_und_bob)\
**Post date:** [March 16, 2026, 11:20pm UTC](https://forum.polkadot.network/t/2025-09-15-technical-fellowship-opendev-call/15668/4 "2026-03-16T23:20:23Z")

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The Kusamarian has removed the video.

A mirrored version can be found on the official Polkadot account here:

[![](https://europe1.discourse-cdn.com/flex005/uploads/polkadot2/original/2X/5/5be2697a75c846a85f78ad32dc437f74c64962d7.jpeg "OpenDev Core Polkadot Call - September 2025") ](https://www.youtube.com/watch?v=eGbubFmqm5A)