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---
title: flux-core v0.79.0
date: 2025-10-08 00:00:00
author: "flux-framework"
categories: 'release'
version: 0.79.0
download: https://github.com/flux-framework/flux-core/releases/download/v0.79.0/flux-core-0.79.0.tar.gz
---

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

# Release Notes

flux-core version 0.79.0 - 2025-10-07
-------------------------------------

## New Features

* python: add explicit `attr_set()` method to Flux handle class ([#7127](https://github.com/flux-framework/flux-core/issues/7127))
* add `flux_rexec_bg(3)` and `flux exec --bg` ([#7107](https://github.com/flux-framework/flux-core/issues/7107))
* flux-fsck: prefix output when not attached to a tty ([#7114](https://github.com/flux-framework/flux-core/issues/7114))
* broker: add default config-reload module method ([#7099](https://github.com/flux-framework/flux-core/issues/7099))
* bulk-exec: include jobid in unit Description ([#7104](https://github.com/flux-framework/flux-core/issues/7104))
* broker: convert subprocess server to a built-in module ([#7084](https://github.com/flux-framework/flux-core/issues/7084))
* python: support `kvs_lookup_checkpoint` ([#7081](https://github.com/flux-framework/flux-core/issues/7081))
* modprobe: support module `exec` option to load modules as processes ([#7080](https://github.com/flux-framework/flux-core/issues/7080))
* switch to modprobe by default for rc1 and rc3 ([#7005](https://github.com/flux-framework/flux-core/issues/7005))
* add flux module load --exec option ([#7075](https://github.com/flux-framework/flux-core/issues/7075))
* libsubprocess: add message channels ([#7073](https://github.com/flux-framework/flux-core/issues/7073))
* libflux: add fd:// connector ([#7072](https://github.com/flux-framework/flux-core/issues/7072))
* validator: validate resource count strings ([#7052](https://github.com/flux-framework/flux-core/issues/7052))
* flux-jobs: add `-w, --width[=N]` option ([#7063](https://github.com/flux-framework/flux-core/issues/7063))
* python: consider output header w/ expandable width ([#7053](https://github.com/flux-framework/flux-core/issues/7053))
* add flux-module-exec for standalone module debugging ([#7046](https://github.com/flux-framework/flux-core/issues/7046))
* Show full usernames by default in flux-jobs(1) and flux-pgrep(1) ([#7042](https://github.com/flux-framework/flux-core/issues/7042))
* add flux-cgroup command and improve cgroup portability ([#7035](https://github.com/flux-framework/flux-core/issues/7035))
* allow MemorySwapMax to be configured ([#7036](https://github.com/flux-framework/flux-core/issues/7036))

## Fixes

* etc/modprobe: rc3 post-finish-event needs kvs ([#7117](https://github.com/flux-framework/flux-core/issues/7117))
* modprobe: abort operation on first task failure ([#7106](https://github.com/flux-framework/flux-core/issues/7106))
* adjust subprocess server protocol to conform to RFC 42 ([#7090](https://github.com/flux-framework/flux-core/issues/7090))
* libsubprocess: rename `lflags` to `local_flags` ([#7087](https://github.com/flux-framework/flux-core/issues/7087))
* libsubprocess: allow all flags to work remotely ([#7086](https://github.com/flux-framework/flux-core/issues/7086))
* libflux: reduce spurious pollfd wake-ups ([#7071](https://github.com/flux-framework/flux-core/issues/7071))
* libflux: fix `flux_pollevents()` POLLOUT logic ([#7068](https://github.com/flux-framework/flux-core/issues/7068))
* modprobe/rc1: call flux restore with --sd-notify ([#7076](https://github.com/flux-framework/flux-core/issues/7076))
* etc/modprobe: remove kvs requires on restore task ([#7069](https://github.com/flux-framework/flux-core/issues/7069))
* libflux: ensure `flux_pollfd()` is edge triggered ([#7066](https://github.com/flux-framework/flux-core/issues/7066))
* libflux: fix `flux_pollfd()` file descriptor leak ([#7065](https://github.com/flux-framework/flux-core/issues/7065))
* libflux: do not require out parameters in `flux_response_decode_raw()`
([#7064](https://github.com/flux-framework/flux-core/issues/7064))
* flux-fsck: use content.load on older versions ([#7045](https://github.com/flux-framework/flux-core/issues/7045))
* flux-{jobs,pgrep}: remove precision from username outputs ([#7056](https://github.com/flux-framework/flux-core/issues/7056))
* modprobe: add missing call to executor.shutdown() ([#7055](https://github.com/flux-framework/flux-core/issues/7055))
* libeventlog: set reactor when creating future ([#7048](https://github.com/flux-framework/flux-core/issues/7048))
* flux-jobs: add space before parentheses for `-c/--count` option, add
"+" for `-u/--user` help message ([#7047](https://github.com/flux-framework/flux-core/issues/7047))
* libkvs: allow checkpoint read on older versions ([#7044](https://github.com/flux-framework/flux-core/issues/7044))
* flux-module: fix list output alignment ([#7038](https://github.com/flux-framework/flux-core/issues/7038))
* sysmon: handle hybrid cgroup hierarchy ([#7029](https://github.com/flux-framework/flux-core/issues/7029))

## Cleanup

* flux-fsck: misc cleanup ([#7110](https://github.com/flux-framework/flux-core/issues/7110))
* broker: rename event.publish to overlay.publish ([#7109](https://github.com/flux-framework/flux-core/issues/7109))
* broker: disable duplicate buffering on rc subprocs ([#7098](https://github.com/flux-framework/flux-core/issues/7098))
* broker: simplify internal event routing ([#7100](https://github.com/flux-framework/flux-core/issues/7100))
* misc cleanup in content-files and tests ([#7097](https://github.com/flux-framework/flux-core/issues/7097))
* flux-job: remove cancel[all] subcommands ([#7058](https://github.com/flux-framework/flux-core/issues/7058))
* modprobe: move package provided files out of `/etc` ([#7039](https://github.com/flux-framework/flux-core/issues/7039))

## Build/CI/Testsuite/Documentation

* doc: point users to el8 SRPM packages on github ([#7126](https://github.com/flux-framework/flux-core/issues/7126))
* doc: fix formatting typo in flux-modprobe(1) ([#7116](https://github.com/flux-framework/flux-core/issues/7116))
* doc: update flux-broker-attributes(7) defaults ([#7103](https://github.com/flux-framework/flux-core/issues/7103))
* doc: add manpage for flux_msg_handler_allow_rolemask() and
flux_msg_handler_deny_rolemask(3) ([#7088](https://github.com/flux-framework/flux-core/issues/7088))
* doc: document `FLUX_PYCLI_LOGLEVEL` in flux-environment(7) ([#7089](https://github.com/flux-framework/flux-core/issues/7089))
* mergify: disable temporary PR branches ([#7096](https://github.com/flux-framework/flux-core/issues/7096))
* testsuite: simplify test to avoid hang ([#7092](https://github.com/flux-framework/flux-core/issues/7092))
* doc: add extra clarification to modprobe docs ([#7070](https://github.com/flux-framework/flux-core/issues/7070))
* testsuite: fix a couple tests in t0100-modprobe.t ([#7062](https://github.com/flux-framework/flux-core/issues/7062))
* testsuite: sanitize environment in python/subflux.py ([#7057](https://github.com/flux-framework/flux-core/issues/7057))
* doc: add `attach --tail` to flux-job(1) ([#7033](https://github.com/flux-framework/flux-core/issues/7033))
* testsuite: fix t2622-job-shell-sysmon.t skip_all behavior ([#7025](https://github.com/flux-framework/flux-core/issues/7025))
* testsuite: fix t2429-shell-lost when hostname includes domain ([#7024](https://github.com/flux-framework/flux-core/issues/7024))