Merge remote-tracking branch 'upstream/8.4.x' into HEAD

* upstream/8.4.x:
  Ensure `cylc message` exceptions are printed to stderr (cylc#6647)
  fix typo in stop.py - options.max_poll -> options.max_polls
  doc: improve NamespaceIDGlob description (cylc#6637)
  Document that "ex" prefix means "exclude"
  tests: remove string templating in SQL statements (cylc#6631)
  Bump dev version
  Prepare release 8.4.1
  Merge pull request cylc#6578 from MetRonnie/graphql-err-handling
  Update cylc/flow/etc/examples/expiry/index.rst
  Pytest: full verbosity for assertions
  Fix test picking up user global config
  Wrapper script: fix `PATH` override preventing selection of Cylc version in GUI under Cylc Hub
  Get poll to return task failure if job/log has been removed. (cylc#6577)
  work around NFS caching issues (cylc#6603)
  allow workflow config to unset global events config (cylc#6518)
  examples: document expiry workflow design patterns

Author: wxtim

CHANGES.md

@@ -11,6 +11,31 @@ $ towncrier create <PR-number>.<break|feat|fix>.md --content "Short description"
 
 <!-- towncrier release notes start -->
 
+## __cylc-8.4.1 (Released 2025-02-25)__
+
+### 🔧 Fixes
+
+[#6480](https://github.com/cylc/cylc-flow/pull/6480) - `cat-log`: List log files which are available via a configured tailer/viewer command.
+
+[#6506](https://github.com/cylc/cylc-flow/pull/6506) - Work around caching behaviour observed on NFS filesystems which could cause workflows to appear to be stopped or even to not exist, when they are running.
+
+[#6518](https://github.com/cylc/cylc-flow/pull/6518) - Allow setting empty values in `flow.cylc[scheduler][events]` to override the global configuration.
+
+[#6535](https://github.com/cylc/cylc-flow/pull/6535) - Ensure tasks can be killed while in the preparing state.
+
+[#6551](https://github.com/cylc/cylc-flow/pull/6551) - Fix bug in `cylc lint` S014 where it warned about use of legitimate `-W` directive for PBS.
+
+[#6571](https://github.com/cylc/cylc-flow/pull/6571) - Disabled PEP-515-style integer coercion of task parameters containing underscores (e.g. `084_132` was becoming `84132`). This fix returns older behaviour seen in Cylc 7.
+
+[#6577](https://github.com/cylc/cylc-flow/pull/6577) - Fixed a bug where if you prematurely deleted the job log directory, it would leave tasks permanently in the submitted or running states.
+
+[#6578](https://github.com/cylc/cylc-flow/pull/6578) - Improved handling of any internal errors when executing commands against a running workflow.
+
+[#6586](https://github.com/cylc/cylc-flow/pull/6586) - Update PBS job runner to reflect error message change. This change
+  continues to support older PBS versions.
+
+[#6616](https://github.com/cylc/cylc-flow/pull/6616) - Fixed wrapper script `PATH` override preventing selection of Cylc version in the GUI when running Cylc Hub.
+
 ## __cylc-8.4.0 (Released 2025-01-08)__
 
 ### ⚠ Breaking Changes

changes.d/6480.fix.md

@@ -0,0 +1 @@
+Fixed a typo in stop.py which caused a different exception to be raised than was desired

changes.d/6535.fix.md

@@ -0,0 +1 @@
+Ensure `cylc message` exceptions are printed to `job.err`.

changes.d/6551.fix.md

@@ -52,7 +52,7 @@ def environ_init():
 
 environ_init()
 
-__version__ = '8.4.1.dev'
+__version__ = '8.4.2.dev'
 
 
 def iter_entry_points(entry_point_name):

changes.d/6571.fix.md

@@ -174,7 +174,7 @@ fi
 
 # Set PATH when running cylc hub so that configurable-http-proxy can find node
 if [[ ${0##*/} == "cylc" && ${1:-} == "hub" ]]; then
-    PATH=${CYLC_HOME}/bin:${PATH}
+    PATH=${PATH}:${CYLC_HOME}/bin
 fi
 
 # Run the executable from the selected installation.