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39 changes: 39 additions & 0 deletions _posts/2025-12-03-flux-core-0.81.0.md
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---
title: flux-core v0.81.0
date: 2025-12-03 00:00:00
author: "flux-framework"
categories: 'release'
version: 0.81.0
download: https://github.com/flux-framework/flux-core/releases/download/v0.81.0/flux-core-0.81.0.tar.gz
---

Download from GitHub [here]({{ page.download }})

# Release Notes

flux-core version 0.81.0 - 2025-12-02
-------------------------------------

## New Features
* etc/modprobe: use flux dump --maxreqs in rc3 ([#7219](https://github.com/flux-framework/flux-core/issues/7219))
* flux-dump: support --maxreqs option for faster dumping ([#7158](https://github.com/flux-framework/flux-core/issues/7158))
* validator: validate host constraints against instance hostlist ([#7203](https://github.com/flux-framework/flux-core/issues/7203))
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flux dump... now with support! 💩

* allow undrain reason to be updated ([#7187](https://github.com/flux-framework/flux-core/issues/7187))
* jobtap: add `flux_jobtap_set_load_sort_order()` ([#7193](https://github.com/flux-framework/flux-core/issues/7193))
* broker: convert to interthread overlay channel ([#7112](https://github.com/flux-framework/flux-core/issues/7112))

## Fixes
* hostlist: fix off-by-one read error ([#7216](https://github.com/flux-framework/flux-core/issues/7216))
* job-manager: improve policy limit error messages ([#7204](https://github.com/flux-framework/flux-core/issues/7204))
* improve error messages and documentation for submission directives ([#7197](https://github.com/flux-framework/flux-core/issues/7197))

## Cleanup
* broker: decouple state machine and overlay ([#7209](https://github.com/flux-framework/flux-core/issues/7209))
* broker: factor out bootstrap table parser ([#7210](https://github.com/flux-framework/flux-core/issues/7210))

## Build/CI/Testsuite/Documentation
* ci: fix mount permissions for 1M tmpfs fs in docker ([#7208](https://github.com/flux-framework/flux-core/issues/7208))
* ci: update typos checker ([#7198](https://github.com/flux-framework/flux-core/issues/7198))
* doc: add missing paren in modprobe doc ([#7202](https://github.com/flux-framework/flux-core/issues/7202))
* doc: add section on running tests as Flux jobs to debug guide ([#7199](https://github.com/flux-framework/flux-core/issues/7199))
* flux-dump/flux-fsck misc cleanup ([#7186](https://github.com/flux-framework/flux-core/issues/7186))