NEWS.md: Add release notes for v0.72.0

Problem: There are no release notes for flux-core v0.72.0.

Add them.

NEWS.md

@@ -1,3 +1,56 @@
+flux-core version 0.72.0 - 2025-03-04
+-------------------------------------
+
+## New Features
+ * add `FLUX_JOB_RANKS` environment variable to prolog and epilog (#6670)
+ * avoid scheduling jobs on compute nodes that are not cleaned up (#6616)
+ * flux-hostlist: add `-F, --find=HOSTS` option (#6671)
+ * raise non-fatal exception on epilog failure (#6669)
+ * shrink available resource set for jobs that lose nodes (#6652, #6676)
+ * add support for undrain reason (#6659)
+ * flux-jobs: filter against all users with --include (#6646)
+ * add `ResourceJournalConsumer` and `EventLogFormatter` classes and use
+   them to standardize `flux resource eventlog`  (#6614, #6635)
+ * add resource journal (#6586, #6633)
+ * heartbeat: add optional timeout (#6679)
+
+## Fixes
+ * improve error message on invalid formatting of shell options (#6680)
+ * fix prolog/epilog timeout handling (#6677)
+ * sdexec: add stop timeout to handle unkillable processes (#6666, #6673)
+ * libsubprocess: fix error path bug (#6663)
+ * improve management of systemd stop timeout to avoid SIGKILL while making
+   progress (#6661)
+ * fix non-ascii character handling in `flux resource eventlog` (#6650)
+ * fix duplicated output in `flux run` (#6649)
+ * flux-version: report hwloc.api=x.y.z instead of hwloc=x.y.z (#6639)
+ * fix incorrect combination of lines in `flux resource status` for
+   expandable fields that differ past the minimum width (#6638)
+ * log helpful info when shutdown is stuck (#6623)
+ * etc: update bash completions (#6618)
+ * Require exactly one of total or `per_slot` be specified in jobspec
+   tasks.count (#6605)
+ * flux-job: do not override `-L, --color` when `-H, --human` is used in
+   `eventlog` and `wait-event` subcommands (#6612)
+ * flux-queue: do not default to --all with configured queues (#6681)
+
+## Cleanup
+ * rename broker quorum and shutdown warn period attributes (#6660)
+ * libsubprocess: cosmetic cleanup (#6642)
+ * kvs: move `wait_version` API into kvsroot API (#6628)
+ * kvs: remove dead code (#6622, #6611, #6604)
+ * kvs: misc cleanup (#6627, #6615)
+
+## Build/CI/Testsuite/Documentation
+ * gitignore: ignore PLY autogenerated parsetab.py (#6664)
+ * testsuite: fix flaky test for handling of invalid `tbon.topo` (#6657)
+ * doc: add job classifications to glossary (#6647)
+ * doc: expand job termination documentation in `flux-config-exec(5)` (#6640)
+ * ci: ensure unit tests are run during coverage (#6617)
+ * arm64 Docker cleanup (#6575)
+ * github: update typos check ci action
+
+
 flux-core version 0.71.0 - 2025-02-04
 -------------------------------------