NEWS

This file describes changes in recent versions of Slurm. It primarily
documents those changes that are of interest to users and administrators.

* Changes in Slurm 23.02.5
==========================
 -- Add the JobId to debug() messages indicating when cpus_per_task/mem_per_cpu
    or pn_min_cpus are being automatically adjusted.
 -- Fix regression in 23.02.2 that caused slurmctld -R to crash on startup if
    a node features plugin is configured.
 -- Fix and prevent reoccurring reservations from overlapping.
 -- job_container/tmpfs - Avoid attempts to share BasePath between nodes.
 -- Change the log message warning for rate limited users from verbose to info.
 -- With CR_Cpu_Memory, fix node selection for jobs that request gres and
    --mem-per-cpu.
 -- Fix a regression from 22.05.7 in which some jobs were allocated too few
    nodes, thus overcommitting cpus to some tasks.
 -- Fix a job being stuck in the completing state if the job ends while the
    primary controller is down or unresponsive and the backup controller has
    not yet taken over.
 -- Fix slurmctld segfault when a node registers with a configured CpuSpecList
    while slurmctld configuration has the node without CpuSpecList.
 -- Fix cloud nodes getting stuck in POWERED_DOWN+NO_RESPOND state after not
    registering by ResumeTimeout.

* Changes in Slurm 23.02.4
==========================
 -- Fix sbatch return code when --wait is requested on a job array.
 -- switch/hpe_slingshot - avoid segfault when running with old libcxi.
 -- Avoid slurmctld segfault when specifying AccountingStorageExternalHost.
 -- Fix collected GPUUtilization values for acct_gather_profile plugins.
 -- Fix slurmrestd handling of job hold/release operations.
 -- Make spank S_JOB_ARGV item value hold the requested command argv instead of
    the srun --bcast value when --bcast requested (only in local context).
 -- Fix step running indefinitely when slurmctld takes more than MessageTimeout
    to respond. Now, slurmctld will cancel the step when detected, preventing
    following steps from getting stuck waiting for resources to be released.
 -- Fix regression to make job_desc.min_cpus accurate again in job_submit when
    requesting a job with --ntasks-per-node.
 -- scontrol - Permit changes to StdErr and StdIn for pending jobs.
 -- scontrol - Reset std{err,in,out} when set to empty string.
 -- slurmrestd - mark environment as a required field for job submission
    descriptions.
 -- slurmrestd - avoid dumping null in OpenAPI schema required fields.
 -- data_parser/v0.0.39 - avoid rejecting valid memory_per_node formatted as
    dictionary provided with a job description.
 -- data_parser/v0.0.39 - avoid rejecting valid memory_per_cpu formatted as
    dictionary provided with a job description.
 -- slurmrestd - Return HTTP error code 404 when job query fails.
 -- slurmrestd - Add return schema to error response to job and license query.
 -- Fix handling of ArrayTaskThrottle in backfill.
 -- Fix regression in 23.02.2 when checking gres state on slurmctld startup or
    reconfigure. Gres changes in the configuration were not updated on slurmctld
    startup. On startup or reconfigure, these messages were present in the log:
    "error: Attempt to change gres/gpu Count".
 -- Fix potential double count of gres when dealing with limits.
 -- switch/hpe_slingshot - support alternate traffic class names with "TC_"
    prefix.
 -- scrontab - Fix cutting off the final character of quoted variables.
 -- Fix slurmstepd segfault when ContainerPath is not set in oci.conf
 -- Change the log message warning for rate limited users from debug to verbose.
 -- Fixed an issue where jobs requesting licenses were incorrectly rejected.
 -- smail - Fix issues where e-mails at job completion were not being sent.
 -- scontrol/slurmctld - fix comma parsing when updating a reservation's nodes.
 -- cgroup/v2 - Avoid capturing log output for ebpf when constraining devices,
    as this can lead to inadvertent failure if the log buffer is too small.
 -- Fix --gpu-bind=single binding tasks to wrong gpus, leading to some gpus
    having more tasks than they should and other gpus being unused.
 -- Fix main scheduler loop not starting after failover to backup controller.
 -- Added error message when attempting to use sattach on batch or extern steps.
 -- Fix regression in 23.02 that causes slurmstepd to crash when srun requests
    more than TreeWidth nodes in a step and uses the pmi2 or pmix plugin.
 -- Reject job ArrayTaskThrottle update requests from unprivileged users.
 -- data_parser/v0.0.39 - populate description fields of property objects in
    generated OpenAPI specifications where defined.
 -- slurmstepd - Avoid segfault caused by ContainerPath not being terminated by
    '/' in oci.conf.
 -- data_parser/v0.0.39 - Change v0.0.39_job_info response to tag exit_code
    field as being complex instead of only an unsigned integer.
 -- job_container/tmpfs - Fix %h and %n substitution in BasePath where %h was
    substituted as the NodeName instead of the hostname, and %n was substituted
    as an empty string.
 -- Fix regression where --cpu-bind=verbose would override TaskPluginParam.
 -- scancel - Fix --clusters/-M for federations. Only filtered jobs (e.g. -A,
    -u, -p, etc.) from the specified clusters will be canceled, rather than all
    jobs in the federation. Specific jobids will still be routed to the origin
    cluster for cancellation.

* Changes in Slurm 23.02.3
==========================
 -- Fix regression in 23.02.2 that ignored the partition DefCpuPerGPU setting
    on the first pass of scheduling a job requesting --gpus --ntasks.
 -- openapi/dbv0.0.39/users - If a default account update failed, resulting in a
    no-op, the query returned success without any warning. Now a warning is sent
    back to the client that the default account wasn't modified.
 -- srun - fix issue creating regular and interactive steps because
    *_PACK_GROUP* environment variables were incorrectly set on non-HetSteps.
 -- Fix dynamic nodes getting stuck in allocated states when reconfiguring.
 -- Avoid job write lock when nodes are dynamically added/removed.
 -- burst_buffer/lua - allow jobs to get scheduled sooner after
    slurm_bb_data_in completes.
 -- mpi/pmix - fix regression introduced in 23.02.2 which caused PMIx shmem
    backed files permissions to be incorrect.
 -- api/submit - fix memory leaks when submission of batch regular jobs or batch
    HetJobs fails (response data is a return code).
 -- openapi/v0.0.39 - fix memory leak in _job_post_het_submit().
 -- Fix regression in 23.02.2 that set the SLURM_NTASKS environment variable
    in sbatch jobs from --ntasks-per-node when --ntasks was not requested.
 -- Fix regression in 23.02 that caused sbatch jobs to set the wrong number
    of tasks when requesting --ntasks-per-node without --ntasks, and also
    requesting one of the following options: --sockets-per-node,
    --cores-per-socket, --threads-per-core (or --hint=nomultithread), or
    -B,--extra-node-info.
 -- Fix double counting suspended job counts on nodes when reconfiguring, which
    prevented nodes with suspended jobs from being powered down or rebooted
    once the jobs completed.
 -- Fix backfill not scheduling jobs submitted with --prefer and --constraint
    properly.
 -- Avoid possible slurmctld segfault caused by race condition with already
    completed slurmdbd_conn connections.
 -- Slurmdbd.conf checks included conf files for 0600 permissions
 -- slurmrestd - fix regression "oversubscribe" fields were removed from job
    descriptions and submissions from v0.0.39 end points.
 -- accounting_storage/mysql - Query for indiviual QOS correctly when you have
    more than 10.
 -- Add warning message about ignoring --tres-per-tasks=license when used
    on a step.
 -- sshare - Fix command to work when using priority/basic.
 -- Avoid loading cli_filter plugins outside of salloc/sbatch/scron/srun. This
    fixes a number of missing symbol problems that can manifest for executables
    linked against libslurm (and not libslurmfull).
 -- Allow cloud_reg_addrs to update dynamically registered node's addrs on
    subsequent registrations.
 -- switch/hpe_slingshot - Fix hetjob components being assigned different vnis.
 -- Revert a change in 22.05.5 that prevented tasks from sharing a core if
    --cpus-per-task > threads per core, but caused incorrect accounting and cpu
    binding. Instead, --ntasks-per-core=1 may be requested to prevent tasks from
    sharing a core.
 -- Correctly send assoc_mgr lock to mcs plugin.
 -- Fix regression in 23.02 leading to error() messages being sent at INFO
    instead of ERR in syslog.
 -- switch/hpe_slingshot - Fix bad instant-on data due to incorrect parsing of
    data from jackaloped.
 -- Fix TresUsageIn[Tot|Ave] calculation for gres/gpumem and gres/gpuutil.
 -- Avoid unnecessary gres/gpumem and gres/gpuutil TRES position lookups.
 -- Fix issue in the gpu plugins where gpu frequencies would only be set if both
    gpu memory and gpu frequencies were set, while one or the other suffices.
 -- Fix reservations group ACL's not working with the root group.
 -- slurmctld - Fix backup slurmctld crash when it takes control multiple times.
 -- Fix updating a job with a ReqNodeList greater than the job's node count.
 -- Fix inadvertent permission denied error for --task-prolog and --task-epilog
    with filesystems mounted with root_squash.
 -- switch/hpe_slingshot - remove the unused vni_pids option.
 -- Fix missing detailed cpu and gres information in json/yaml output from
    scontrol, squeue and sinfo.
 -- Fix regression in 23.02 that causes a failure to allocate job steps that
    request --cpus-per-gpu and gpus with types.
 -- sacct - when printing PLANNED time, use end time instead of start time for
    jobs cancelled before they started.
 -- Fix potentially waiting indefinitely for a defunct process to finish,
    which affects various scripts including Prolog and Epilog. This could have
    various symptoms, such as jobs getting stuck in a completing state.
 -- Hold the job with "(Reservation ... invalid)" state reason if the
    reservation is not usable by the job.
 -- Fix losing list of reservations on job when updating job with list of
    reservations and restarting the controller.
 -- Fix nodes resuming after down and drain state update requests from
    clients older than 23.02.
 -- Fix advanced reservation creation/update when an association that should
    have access to it is composed with partition(s).
 -- auth/jwt - Fix memory leak.
 -- sbatch - Added new --export=NIL option.
 -- Fix job layout calculations with --ntasks-per-gpu, especially when --nodes
    has not been explicitly provided.
 -- Fix X11 forwarding for jobs submitted from the slurmctld host.
 -- When a job requests --no-kill and one or more nodes fail during the job,
    fix subsequent job steps unable to use some of the remaining resources
    allocated to the job.
 -- Fix shared gres allocation when using --tres-per-task with tasks that span
    multiple sockets.

* Changes in Slurm 23.02.2
==========================
 -- Fix regression introduced with the migration to interfaces which caused
    sshare to core dump. Sshare now initialized the priority context correctly
    when calculating with PriorityFlags=NO_FAIR_TREE.
 -- Fix IPMI DCMI sensor initialization.
 -- For the select/cons_tres plugin, improve the best effort GPU to core
    binding, for requests with per job task count (-n) and GPU (--gpus)
    specification.
 -- scrontab - don't update the cron job tasks if the whole crontab file is
    left untouched after opening it with "scrontab -e".
 -- mpi/pmix - avoid crashing when running PMIx v5.0 branch with shmem support.
 -- Fix building switch topology after a reconfig with the correct nodes.
 -- Allow a dynamic node to register with a reason, using --conf, when the
    state is DOWN or DRAIN.
 -- Fix slurmd running tasks before RPC Prolog is run.
 -- Fix slurmd deadlock iff the controller were to give a bad alias_list.
 -- slurmrestd - correctly process job submission field "exclusive" with boolean
    True or False.
 -- slurmrestd - correctly process job submission field "exclusive" with strings
    "true" or "false".
 -- slurmctld/step_mgr - prevent non-allocatable steps from decrementing values
    that weren't previously incremented when trying to allocate them.
 -- auth/jwt - Fix memory leak in slurmctld with 'scontrol token'.
 -- Fix shared gres (shard/mps) leak when using --tres-per-task
 -- Fix sacctmgr segfault when listing accounts with coordinators.
 -- slurmrestd - improve error logging when client connections experience
    polling errors.
 -- slurmrestd - improve handling of sockets in different states of shutdown to
    avoid infinite poll() loop causing a thread to max CPU usage until process
    is killed.
 -- slurmrestd - avoid possible segfault caused by race condition of already
    completed connections.
 -- mpi/cray_shasta - Fix PMI shared secret for hetjobs.
 -- gpu/oneapi - Fix CPU affinity handling.
 -- Fix dynamic nodes powering up when already up after adding/deleting nodes
    when using power_save logic.
 -- slurmrestd - Add support for setting max connections.
 -- data_parser/v0.0.39 - fix sacct --json matching associations from a
    different cluster.
 -- Fix segfault when clearing reqnodelist of a pending job.
 -- Fix memory leak of argv when submitting jobs via slurmrestd or CLI commands.
 -- slurmrestd - correct miscalculation of job argument count that could cause
    memory leak when job submission fails.
 -- slurmdbd - add warning on startup if max_allowed_packet is too small.
 -- gpu/nvml - Remove E-cores from NVML's cpu affinity bitmap when
    "allow_ecores" is not set in SlurmdParameters.
 -- Fix regression from 23.02.0rc1 causing a FrontEnd slurmd to assert fail on
    startup and don't be configured with the appropriate port.
 -- Fix dynamic nodes not being sorted and not being included in topology,
    which resulted in suboptimal dynamic node selection for jobs.
 -- Fix slurmstepd crash due to potential division by zero (SIGFPE) in certain
    edge-cases using the PMIx plugin.
 -- Fix issue with PMIx HetJob requests where certain use-cases would end up
    with communication errors due to incorrect PMIx hostname info setup.
 -- openapi/v0.0.39 - revert regression in job update requests to accept job
    description for changes instead of requiring job description in "job" field.
 -- Fix regression in 23.02.0rc1 that caused a step to crash with a bad
    --gpu-bind=single request.
 -- job_container/tmpfs - skip more in-depth attempt to clean up the base path
    when not required.  This prevents unhelpful, and possibly misleading, debug2
    messages when not using the new "shared" mode.
 -- gpu/nvml - Fix gpu usage when graphics processes are running on the gpu.
 -- slurmrestd - fix regression where "exclusive" field was removed from job
    descriptions and submissions.
 -- Fix issue where requeued jobs had bad gres allocations leading to gres not
    being deallocated at the end of the job, preventing other jobs from using
    those resources.
 -- Fix regression in 23.02.0rc1 which caused incorrect values for
    SLURM_TASKS_PER_NODE when the job requests --ntasks-per-node and --exclusive
    or --ntasks-per-core=1 (or CR_ONE_TASK_PER_CORE) and without requesting
    --ntasks. SLURM_TASKS_PER_NODE is used by mpirun, so this regression
    caused mpirun to launch the wrong number of tasks and to sometimes fail to
    launch tasks.
 -- Prevent jobs running on shards from being canceled on slurmctld restart.
 -- Fix SPANK prolog and epilog hooks that rely on slurm_init() for access to
    internal Slurm API calls.
 -- oci.conf - Populate %m pattern with ContainerPath or SlurmdSpoolDir if
    ContainerPath is not configured.
 -- Removed zero padding for numeric values in container spool directory names.
 -- Avoid creating an unused task-4294967295 directory in container spooldir.
 -- Cleanup container step directories at step completion.
 -- sacctmgr - Fix segfault when printing empty tres.
 -- srun - fix communication issue that prevented slurmctld from connecting to
    an srun running outside of a compute node.

* Changes in Slurm 23.02.1
==========================
 -- job_container/tmpfs - cleanup job container even if namespace mount is
    already unmounted.
 -- When cluster specific tables are be removed also remove the job_env_table
    and job_script_table.
 -- Fix the way bf_max_job_test is applied to job arrays in backfill.
 -- data_parser/v0.0.39 - Avoid dumping -1 value or NULL when step's
    consumed_energy is unset.
 -- scontrol - Fix showing Array Job Steps.
 -- scontrol - Fix showing Job HetStep.
 -- openapi/dbv0.0.38 - Fix not displaying an error when updating QOS or
    associations fails.
 -- data_parser/v0.0.39 - Avoid crash while parsing composite structures.
 -- sched/backfill - fix deleted planned node staying in planned node bitmap.
 -- Fix nodes remaining as PLANNED after slurmctld save state recovery.
 -- Fix parsing of cgroup.controllers file with a blank line at the end.
 -- Add cgroup.conf EnableControllers option for cgroup/v2.
 -- Get correct cgroup root to allow slurmd to run in containers like Docker.
 -- Fix "(null)" cluster name in SLURM_WORKING_CLUSTER env.
 -- slurmctld - add missing PrivateData=jobs check to step ContainerID lookup
    requests originated from 'scontrol show step container-id=<id>' or certain
    scrun operations when container state can't be directly queried.
 -- Automatically sort the TaskPlugin list reverse-alphabetically. This
    addresses an issue where cpu masks were reset if task/affinity was listed
    before task/cgroup on cgroup/v2 systems with Linux kernel < 6.2.
 -- Fix some failed terminate job requests from a 23.02 slurmctld to a 22.05 or
    21.08 slurmd.
 -- Fix compile issues on 32-bit systems.
 -- Fix nodes un-draining after being drained due to unkillable step.
 -- Fix remote licenses allowed percentages reset to 0 during upgrade.
 -- sacct - Avoid truncating time strings when using SLURM_TIME_FORMAT with
    the --parsable option.
 -- data_parser/v0.0.39 - fix segfault when default qos is not set.
 -- Fix regression in 22.05.0rc1 that broke Nodes=ALL in a NodeSet.
 -- openapi/v0.0.39 - fix jobs submitted via slurmrestd being allocated fewer
    CPUs than tasks when requesting multiple tasks.
 -- Fix job not being scheduled on valid nodes and potentially being rejected
    when using parentheses at the beginning of square brackets in a feature
    request, for example: "feat1&[(feat2|feat3)]".
 -- Fix a job being scheduled on nodes that do not match a feature request that
    uses parentheses inside of brackets and requests additional features outside
    of brackets, for example: "feat1&[feat2|(feat3|feat4)]".
 -- Fix regression in 23.02.0rc1 which made --gres-flags=enforce-binding no
    longer enforce optimal core-gpu job placement.
 -- switch/hpe_slingshot - add option to disable VNI allocation per-job.
 -- switch/hpe_slingshot - restrict CXI services to the requesting user.
 -- switch/hpe_slingshot - Only output tcs once in SLINGSHOT_TCS env.
 -- switch/hpe_slingshot - Fix updating LEs and ACs limits.
 -- switch/hpe_slingshot - Use correct Max for EQs and CTs.
 -- switch/hpe_slingshot - support configuring network options per-job.
 -- switch/hpe_slingshot - retry destroying CXI service if necessary.
 -- Fix memory leak caused by job preemption when licenses are configured.
 -- mpi/pmix - Fix v5 to load correctly when libpmix.so isn't in the normal
    lib path.
 -- data_parser/v0.0.39 - fix regression where "memory_per_node" would be
    rejected for job submission.
 -- data_parser/v0.0.39 - fix regression where "memory_per_cpu" would be
    rejected for job submission.
 -- slurmctld - add an assert to check for magic number presence before deleting
    a partition record and clear the magic afterwards to better diagnose
    potential memory problems.
 -- Clean up OCI containers task directories correctly.
 -- slurm.spec - add "--with jwt" option.
 -- scrun - Run under existing job when SLURM_JOB_ID is present.
 -- Prevent a slurmstepd crash when the I/O subsystem has hung.
 -- common/conmgr - fix memory leak of complete connection list.
 -- data_parser/v0.0.39 - fix memory leak when parsing every field in a struct.
 -- job_container/tmpfs - avoid printing extraneous error messages when running
    a spank plugin that implements slurm_spank_job_prolog() or
    slurm_spank_job_epilog().
 -- Fix srun < 23.02 always getting an "exact" core allocation.
 -- Prevent scontrol < 23.02 from setting MaxCPUsPerSocket to 0.
 -- Add ScronParameters=explicit_scancel and corresponding scancel --cron
    option.

* Changes in Slurm 23.02.0
==========================
 -- scrun - Install into /bin instead of /sbin, which also ensures it is
    included in the RPM packages.
 -- data_parser/v0.0.39 - avoid erroring on unknown association id.
 -- data_parser/v0.0.39 - avoid fatal while dumping TRES values.
 -- Improve error message for using --cpus-per-gpus without any GPUs.
 -- switch/hpe_slingshot - fix rolling upgrades from 22.05 to 23.02
 -- Change cgroup/v1 behavior when waiting for a pid to be moved by waiting some
    time between retries. This helps with stray cgroup dirs on slow kernels.
 -- Workaround a bug in kernels < 3.18 with cpuset which randomly leaves stray
    cgroups after jobs have ended.
 -- Rebuild the prepacked buf going to the slurmstepd if TRES changed.
 -- Add new 'make clean-contrib' target to build system to clean contribs dir.
 -- Treat newlines as delimeters for hostlist_create(). (This is used internally
    by "scontrol show hostlist" and for handling SLURM_JOB_NODELIST.)
 -- scontrol - Print "Invalid job id specified" for 'scontrol show step ...'
    when the job does not exist, rather than "Unexpected error".
 -- Handle mismatched TRES count from the slurmstepd's instead of fatal()'ing.
 -- Fix GPU setup on CRAY systems when using the CRAY_CUDA_MPS environment
    variable. GPUs are now correctly detected in such scenarios.
 -- data_parser/v0.0.39 - improve flag handling to avoid flags having bits left
    unset after parsing.
 -- topology/tree - Add new TopologyParam=SwitchAsNodeRank option to reorder
    nodes based on switch layout. This can be useful if the naming convention
    for the nodes does not natually map to the network topology.
 -- openapi/v0.0.38 - avoid signed math errors while dumping node resources.
 -- openapi/dbv0.0.39 - avoid error while dumping account coordinators.
 -- data_parser/v0.0.39 - correct dump of stats backfill mean table size.
 -- openapi/dbv0.0.39 - avoid error while adding account coordinators.
 -- scrun - catch invalid values of environment SCRUN_FILE_DEBUG.
 -- scrun - avoid memory leak due to invalid annotation.
 -- scrun - avoid false error when pidfile not requested.
 -- Do not constrain memory in task/cgroup unless CR_Memory is set.
 -- Fix the job prolog not running for jobs with the interactive step
    (salloc jobs with LaunchParameters=use_interactive_step set in slurm.conf)
    that were scheduled on powered down nodes. The prolog not running also
    broke job_container/tmpfs, pam_slurm_adopt, and x11 forwarding.
 -- swich/hpe_slingshot - fix issues using 22.05 commands with 23.02 slurmd.
 -- swith/hpe_slingshot - avoid slurmd segfault if there is a protocol error.
 -- task/affinity - fix slurmd segfault when request launch task requests of
    type "--cpu-bind=[map,mask]_cpu:<list>" have no <list> provided.
 -- salloc/sbatch/srun - error out if "--cpu-bind=[map,mask]_cpu:<list>" fails
    to extract a list of cpus.
 -- job_container/tmpfs - cleanup job_mount when container creation fails.
 -- job_container/tmpfs - don't attempt to remove job_mount directory when it is
    still mounted.
 -- Fix regression in rc1 causing sacctmgr to segfault when printing unrelated
    fields.
 -- jobcomp/kafka - don't use the purge API if librdkafka < v1.0.0.
 -- Change shown start time of pending array job to be start time of earliest
    pending array task.
 -- job_container/tmpfs - ensure that step_ns_fd is closed before cleaning up
    the namespace.
 -- Fix assert when suspending or requeueing array tasks with scontrol.
 -- Fix federated job submissions.
 -- Fix sinfo returning non-zero exit code when querying specific clusters.
 -- openapi/v0.0.39 - correct OpenAPI schema for job update requests.
 -- openapi/v0.0.39 - prevent assertion on jobs endpoint by altering how the
    "memory_per_cpu" and "memory_per_node" fields are managed.
 -- Fix regression in 23.02.0rc1 which caused slurmctld to segfault when
    gres is added or removed in the configuration.
 -- Removed the default setting for GpuFreqDef. If unset, no attempt to change
    the GPU frequency will be made if --gpu-freq is not set for the step.
 -- Fixed GpuFreqDef option. When set in slurm.conf, it will be used if
    --gpu-freq was not explicitly set by the job step.
 -- Update database index for usage tables used for archive and purge.
 -- Fix configure script on FreeBSD.

* Changes in Slurm 23.02.0rc1
=============================
 -- Make scontrol reconfigure and sending a SIGHUP to the slurmctld behave the
    same. If you were using SIGHUP as a 'lighter' scontrol reconfigure to rotate
    logs please update your scripts to use SIGUSR2 instead.
 -- Add Account and QOS name type specifications for sprio output formatting.
 -- openapi/[db]v0.0.36 - plugins have been removed.
 -- openapi/[db]v0.0.37 - tagged as deprecated.
 -- openapi/[db]v0.0.39 - forked plugin openapi/[db]v0.0.38.
 -- Add SRUN_{ERROR,INPUT,OUTPUT} input environment variables for --error,
    --input and --output options respectively.
 -- Add MaxCPUsPerSocket to partition configuration, similar to MaxCPUsPerNode.
 -- openapi/v0.0.39 - change nice request field from string to integer.
 -- sacctmgr - no longer force updates to the AdminComment, Comment, or
    SystemComment to lower-case.
 -- openapi/dbv0.0.39 - more graceful handling of POSTs when expected field
    lists are missing or unparsable.
 -- burst_buffer/lua - pass the job's UID and GID to slurm_bb_pre_run,
    slurm_bb_data_in, slurm_bb_post_run, and slurm_bb_data_out in
    burst_buffer.lua.
 -- openapi/v0.0.39 - add new field default_memory_per_node for partitions.
 -- Change cloud nodes to show by default. PrivateData=cloud is no longer
    needed.
 -- Add -F/--future option to sinfo to display future nodes.
 -- openapi/dbv0.0.39 - resolve job user from uid when user is not provided.
 -- sacct/sinfo/squeue - use openapi/[db]v0.0.39 for --json and --yaml modes.
 -- sdiag - Add --json and --yaml arguments.
 -- Cgroupv2 plugin will not show "Controller is not enabled" error when started
    from cmd.
 -- sreport - Count planned (FKA reserved) time for jobs running in IGNORE_JOBS
    reservations. Previously was lumped into IDLE time.
 -- job_container/tmpfs - support running with an arbitrary list of private
    mount points (/tmp and /dev/shm are nolonger required, but are the default).
 -- sacct - Rename 'Reserved' field to 'Planned' to match sreport and the
    nomenclature of the 'Planned' node.
 -- oci.conf: Add %U as OCI pattern replacement to numeric user id.
 -- cli_filter/lua, jobcomp/lua, job_submit/lua - expose all Slurm error codes.
 -- jobcomp/elasticsearch - expose features field.
 -- jobcomp/elasticsearch - post non-NULL but empty string fields.
 -- Make advanced reservation flag MAINT not replace nodes, similar to
    STATIC_ALLOC
 -- NVML - Add usage gathering for Nvidia gpus.
 -- node_features plugins - invalid users specified for AllowUserBoot will now
    result in fatal() rather than just an error.
 -- job_container/tmpfs - Set more environment variables in InitScript.
 -- Make all cgroup directories created by Slurm owned by root.
 -- sbatch - add parsing of #PBS -d and #PBS -w.
 -- Avoid network receive error on heavily loaded machines where the network
    operation can be restarted.
 -- Deprecate AllowedKmemSpace, ConstrainKmemSpace, MaxKmemPercent, and
    MinKmemSpace.
 -- accounting_storage/mysql - change purge/archive to calculate record ages
    based on end time, rather than start or submission times.
 -- Add strigger --draining and -R/--resume options.
 -- Allow updating SLURM_NTASKS environment variable (from scontrol update job).
 -- Limit het job license requests to the leader job only.
 -- Change --oversubscribe and --exclusive to be mutually exclusive for job
    submission. Job submission commands will now fatal if both are set.
    Previously, these options would override each other, with the last one in
    the job submission command taking effect.
 -- job_submit/lua - add support for log_user() from slurm_job_modify().
 -- openapi/v0.0.39 - add submission of job->prefer value.
 -- Fix tasks binding to GPUs when using --ntasks-per-gpu and GPUs have
    different core/socket affinity.
 -- Add support for padding StdOut/StdErr/StdIn format specifiers to scontrol
    show job.
--  Fix sacctmgr qos filter to properly select assocs by qos inheritance rules.
 -- Prevent slurmctld from starting with invalid jobcomp plugin.
 -- Fix `sinfo -i` and interactive `scontrol> show node` replies for nodes
    going from powering down to powered down state.
 -- auth/jwt - support Azure (among other) JWKS files by preferring x5c field
    over locally reconstructing an RSA256 key file.
 -- auth/jwt - add optional AuthAltParameters field "userclaimfield=" to allow
    overriding "sun" claim to site specific field.
 -- scontrol - Requested TRES and allocated TRES will now always be printed when
    showing jobs, instead of one TRES output that was either the requested or
    allocated.
 -- Improve scheduling performance for dynamic nodes and nodes with features by
    consolidating like config records.
 -- Expose argc and entire argv to job_submit and cli_filter plugins for jobs
    submitted via salloc/srun or sbatch <script> (not via --wrap).
 -- Job command/script name is now packed with no arguments, thus clients
    displaying job information will only show the command/script name.
 -- Make acct_gather_energy plugins handle slurmd reconfiguration and support
    restart for gpu and xcc implementations.
 -- Fix --slurmd-debug to treat its argument as log level (as documented)
    instead of previous approach with it being an offset to configured log
    level.
 -- srun --slurmd-debug option is now only allowed for root and SlurmUser
 -- Change 'scontrol requeue' behavior for scron jobs to use cronspec to
    determine the next start time.
 -- serializer/url-encoded - interpet query keys without a value (flags) to be
    true instead of NULL.
 -- Add --autocomplete= option to all client commands.
 -- Allow for concurrent processing of job_submit_g_submit() and
    job_submit_g_modify() calls.
 -- Allow jobs to queue even if the user is not in AllowGroups when
    EnforcePartLimits=no is set. This ensures consistency for all the Partition
    access controls, and matches the documented behavior for EnforcePartLimits.
 -- Fix srun tasks binding/allocation when using --ntasks-per-core option. Now,
    --ntasks-per-core=1 implies --cpu-bind=cores and --ntasks-per-core>1 implies
    --cpu-bind=threads.
 -- salloc/sbatch/srun check and abort if ntasks-per-core > threads-per-core.
 -- burst_buffer/lua - fix building heterogeneous job scripts where the
    directive is not the default "BB_LUA".
 -- If a node is in a reservation add the reservation name to it for
    scontrol/sinfo/sview.
 -- common/cgroup - improve possible TOCTOU situation when reading cgroup files.
 -- slurmctld will fatal() when reconfiguring the job_submit plugin fails.
 -- Add ResumeAfter=<secs> option to "scontrol update nodename=".
 -- slurmrestd - switch to returning UNPROCESSABLE_CONTENT when parsing
    succeeds but an error about the actual contents causes a request to fail.
 -- slurmrestd - queries that result in empty contents will now be treated as
    SUCCESS. While the query worked, nothing was returned, which allows callers
    to determine how to then proceed.
 -- Add PowerDownOnIdle partition option.
 -- Make it so the [Allow|Deny]Accounts parameter for a partition is
    hierarchical.
 -- Add the ability for a add (+=) or remove (-=) nodes from a reservation
 -- Fix several problems when creating/editing partitions in sview.
 -- Enhanced burst_buffer.lua - pass UID and GID to most hooks; pass a table
    containing detailed job information to many hooks. See
    etc/burst_buffer.lua.example for a complete list of changes.
 -- Add a new "nodes=" argument to scontrol setdebug to allow the debug level
    on the slurmd processes to be temporarily altered.
 -- Add InfluxDBTimeout parameter to acct_gather.conf.
 -- job_container/tmpfs - add support for expanding %h and %n in BasePath.
 -- Prevent job submission/update with afterok/afternotok dependency set to
    an unknown jobid.
 -- Change to a new FAIL_SIGNAL job state reason (instead of FAIL_LAUNCH) for
    jobs that have raised a signal on setup.
 -- Add "[jobid.stepid]" prefix from slurmstepd and "slurmscriptd" prefix from
    slurmcriptd to Syslog logging. Previously was only happening when logging
    to a file.
 -- Make it so scrontab prints client-side the job_submit() err_msg (which can
    be set i.e. by using the log_user() function for the lua plugin).
 -- Remove ability for reservation to have STATIC_ALLOC or MAINT flags and
    REPLACE[_DOWN] flags simultaneously.
 -- Accept only one reoccurring flag when creating/updating any reservation.
 -- Remove ability to update a reservation to have a reoccurring flag if it
    is a floating reservation.
 -- squeue - removed unused '%s' and 'SelectJobInfo' formats.
 -- Add purge and archive functionality for job environment and job batch script
    records.
 -- srun - return an error if step suffers a node failure.
 -- squeue - align print format for exit and derived codes with that of other
    components (<exit_status>:<signal_number>).
 -- Add new SlurmctldParameters=validate_nodeaddr_threads=<number> option to
    allow concurrent hostname resolution at slurmctld startup.
 -- Have 'scontrol show hostlist -' read from stdin.
 -- Extend support for Include files to all "configless" client commands.
 -- Make node weight usable for powered down and rebooting nodes.
 -- node_features plugins - node_features_p_reboot_weight() function removed.
 -- Removed 'launch' plugin.
 -- Add "Extra" field to job to store extra information other than a comment.
 -- Add new AccountingStoreFlags=job_extra option to store a job's extra field
    in the database.
 -- slurmrestd - add option to allow rest_auth/local to switch user id on first
    user connection.
 -- oci.conf - add DisableHooks option.
 -- oci.conf - add SrunPath and SrunArgs options.
 -- oci.conf - add StdIODebug, SyslogDebug, FileDebug and DebugFlags options to
    allow controlling container specific logging.
 -- oci.conf - remove requirement of RunTimeQuery when RunTimeRun is set.
 -- slurmstepd - cleanup generated environment file for containers when step
    completes instead of deferring cleanup to OCI runtime.
 -- oci.conf - add configuration option "IgnoreFileConfigJson=" to allow a site
    to choose to ignore config.json.
 -- oci.conf - Add PID (%p) pattern replacement.
 -- slurmrestd - correct ordering issue of saving changes to a container's
    modified config.json where config changes by job modifing plugins would be
    silently lost.
 -- slurmstepd - merge container config.json environment into job environment
    and then overwrite config.json environment. Avoids instance where processes in
    container will not have access to job environment variables.
 -- slurmstepd - defer creating container environment file until after all
    plugin based modifications to the job environment are complete.
 -- oci.conf - modify configuration option "CreateEnvFile=" to support creating
 -- oci.conf - add RunTimeEnvExclude and EnvExclude.
 -- slurmstepd - fix container pattern bundle path replacement (%b) with
    bundle path instead of spool dir path.
 -- oci.conf - add MountSpoolDir.
 -- slurmstepd - create per task spool directory per container to avoid
    conflicts when there are more than 1 container tasks on any given node.
 -- mpi/pmix - set PMIX_SERVER_TMPDIR to container spool directory instead of
    slurmd spool directory which caused PMIx to fail to load in containers.
 -- Add new "defer_batch" option to SchedulerParameters to only defer
    scheduling for batch jobs.
 -- Reject jobs submitted with impossible --time, --deadline, and --begin
    combinations at submission time
 -- Add new DebugFlags option 'JobComp' to replace 'Elasticsearch'.
 -- sacct - Add --array option to expand job arrays and display array tasks on
    separate lines.
 -- Fix jobs submitted with a deadline never being cleared after the
    reservation is done.
 -- Change srun/salloc to wait indefinitely for their allocations to be ready.
 -- Do not attempt to "fix" malformed input to 'scontrol show hostlist'.
 -- RSMI - Add usage gathering for AMD gpus (requires ROCM 5.5+).
 -- Add job's allocated nodes, features, oversubscribe, partition, and
    reservation to SLURM_RESUME_FILE output for power saving.
 -- Automatically create directories for stdout/stderr output files. Paths may
    use %j and related substitution characters as well.
 -- Add --tres-per-task to salloc/sbatch/srun.
 -- Add configurable job requeue limit parameter - MaxBatchRequeue - in
    slurm.conf to permit changes from the old hard-coded value of 5.
 -- Add a new "nodes=" argument to "scontrol setdebugflags" as well.
 -- slurmd - add --authinfo option to allow AuthInfo options to be changed
    during the configless startup.
 -- helpers.conf - Allow specification of node specific features.
 -- helpers.conf - Allow many features to one helper script.
 -- Allow nodefeatures plugin features to work with cloud nodes.
 -- squeue - removed --array-unique option.
 -- openapi/v0.0.39 - expand job stderr, stdin, and stdout path replacement
    symbols when dumping job information via dump_job_info().
 -- Make slurmstepd cgroups constrained by total configured memory from
    slurm.conf (NodeName=<> RealMemory=#) instead of total physical memory.
 -- node_features/helpers - add support for the OR and parentheses operators
    in a --constraint expression.
 -- Fix race condition between PMIx authentication and slurmstepd task launches
    that can lead to job launch failures.
 -- fatal() when [Prolog|Epilog]Slurmctld are defined but not executable.
 -- slurmctld - Add new RPC rate limiting feature. This is enabled through
    SlurmctldParameters=rl_enable, otherwise disabled by default.
 -- Validate node registered active features are a super set of node's
    currently active changeable features.
 -- On clusters without any PrologFlags options, batch jobs with failed prologs
    nolonger generate an output file.
 -- sreport - print "Top ALL Users" for Top User report when topcount = -1.
 -- Add SLURM_JOB_START_TIME and SLURM_JOB_END_TIME environment variables.
 -- Add SuspendExcStates option to slurm.conf to avoid suspending/powering down
    specific node states.
 -- job_container/tmpfs - Add "Shared" option to support shared namespaces.
    This allows autofs to work with the job_container/tmpfs plugin when enabled.
 -- Fix incorrect min node estimation for pending jobs as displayed by client
    commands (e.g. squeue, scontrol show job).
 -- Add support for DCMI power readings in IPMI plugin.
 -- Prevent the backfill counter of tested jobs being reset by sdiag -r.
 -- sacctmgr - Add --json and --yaml arguments.
 -- openapi/v0.0.39 - Conversion of parsing and dumping of data to
    data_parser/v0.0.39 plugins. Significant restructuring of OpenAPI
    specification compared to previous plugin version.
 -- openapi/dbv0.0.39 - Conversion of parsing and dumping of data to
    data_parser/v0.0.39 plugins. Significant restructuring of OpenAPI
    specification compared to previous plugin version.
 -- Validate --gpu-bind options more strictly.
 -- Fix slurmd segfault on bad EnergyIPMIPowerSensors= parameter.
 -- Allow for --nodelist to contain more nodes than required by --nodes.
 -- Add missing logic for JobCompParams configuration key pair to be available
    for consumers of the get/print/write configuration API functions.
 -- mpi/cray_shasta - Add new PALS/PMI environment variables.
 -- Add cache around calls to getnameinfo().
 -- Add CommunicationParameters=getnameinfo_cache_timeout to tune or disable the
    getnameinfo cache.
 -- Limit the number of successive times a batch job may be requeued due to a
    prolog failure. This limit is defined by the value of the max_batch_requeue
    parameter (default 5). Jobs over this limit will be put on admin hold.
 -- Rename "nodes" to "nodes_resume" in SLURM_RESUME_FILE job output.
 -- Rename "all_nodes" to "all_nodes_resume" in SLURM_RESUME_FILE output.
 -- Add new PrologFlags=ForceRequeueOnFail option to automatically requeue
    batch jobs on Prolog failures regardless of the job --requeue setting.
 -- Add HealthCheckNodeState=NONDRAINED_IDLE option.
 -- Add 'explicit' to Flags in gres.conf
 -- Improve validation of --constraint expression syntax.
 -- srun - support job array ids as an argument to --jobid.
 -- Add jobcomp/kafka plugin.
 -- Automatically filter out E-Cores on Intel processors to avoid issues from
    differing threads-per-core values within a single socket.
 -- Add LaunchParameters=ulimit_pam_adopt, which enables setting RLIMIT_RSS in
    adopted processes.
 -- Add new PreemptParameters=reclaim_licenses option which will allow higher
    priority jobs to preempt jobs to free up used licenses. (This is only
    enabled for with PreemptModes of CANCEL and REQUEUE, as Slurm cannot
    guarantee suspended jobs will release licenses correctly.)
 -- Make it so that the REQUEST_STEP_STAT handler only polls jobacct_gather
    information once per RPC. This improves sstat results performance time.
 -- Fix sbcast --force option to work with --send-libs option. Now when --force
    is set, library directores transmitted will overwrite pre-existing libraries
    that were previously transmitted.
 -- hpe/slingshot - Add support for user requestible job VNIs.
 -- hpe/slingshot - Add support for user requestible single node vnis.
 -- hpe/slingshot - Add support for the instant-on feature.
 -- Add ability to update SuspendExc* parameters with scontrol.
 -- Add ability to preserve SuspendExc* parameters on reconfig with
    ReconfigFlags=KeepPowerSaveSettings.
 -- Add ability to restore SuspendExc* parameters on restart with slurmctld -R
    option.
 -- Fix leaving allocated gres on a non-cloud node after being allocated
    from a powered down state after a slurmctld restart.
 -- 'scontrol update job' can now set a GRES specification to "0" to effectively
    clear a GRES speficiation from a job.
 -- Jobs with old GRES that are no longer configured in any configuration files
    can now be succesfully updated to use currently configured GRES.
 -- Add tres_per_node to resource_allocation_response_msg to fix srun jobs
    running with outdated GRES. This is necessary for srun jobs whose GRES are
    updated while they are pending. By having tres_per_node in the
    resourece_allocation_response_msg, slurmctld can send back the correct and
    updated GRES, whereas without it, the srun job would use the old GRES.
 -- Cleaned up various "warning", "Warning", and "WARNING" messages with a new
    warning() logging call. All will now print as "warning: ...".
 -- Add SLURM_JOB_OVERSUBSCRIBE environment variable for Epilog, Prolog,
    EpilogSlurmctld, PrologSlurmctld, and mail ouput.
 -- Fix node reason time skew when setting a reboot message.
 -- Append ResumeTimeout message to an existing node reason instead of always
    clearing it first.
 -- slurmrestd - added support for Bearer Authentication using auth/jwt.
 -- Add check to detect invalid HetJob component and abort job if identified.
 -- sched/backfill - fix job test against advanced reservations if job uses a
    preemptable QOS with Flags=NoReserve.
 -- New command scrun has been added. scrun acts as an Open Container Initiative
    (OCI) runtime proxy to run containers seamlessly via Slurm.
 -- Added support for Linux kernel user namespaces. Process user and group ids
    are no longer used unless explicitly requested as an argument. They are
    left as SLURM_AUTH_NOBODY (99) by default.

* Changes in Slurm 22.05.10
===========================

* Changes in Slurm 22.05.9
==========================
 -- Allocate correct number of sockets when requesting gres and running with
    CR_SOCKET*.
 -- Fix handling of --prefer for job arrays.
 -- Fix regression in 22.05.5 that causes some jobs that request
    --ntasks-per-node to be incorrectly rejected.
 -- Fix slurmctld crash when a step requests fewer tasks than nodes.
 -- Fix incorrect task count in steps that request --ntasks-per-node and a node
    count with a range (e.g. -N1-2).
 -- Fix some valid step requests hanging instead of running.
 -- slurmrestd - avoid possible race condition which would cause slurmrestd to
    silently no longer accept new client connections.
 -- Fix GPU setup on CRAY systems when using the CRAY_CUDA_MPS environment
    variable. GPUs are now correctly detected in such scenarios.
 -- Fix the job prolog not running for jobs with the interactive step
    (salloc jobs with LaunchParameters=use_interactive_step set in slurm.conf)
    that were scheduled on powered down nodes. The prolog not running also
    broke job_container/tmpfs, pam_slurm_adopt, and x11 forwarding.
 -- task/affinity - fix slurmd segfault when request launch task requests of
    type "--cpu-bind=[map,mask]_cpu:<list>" have no <list> provided.
 -- sched/backfill - fix segfault when removing a PLANNED node from system.
 -- sched/backfill - fix deleted planned node staying in planned node bitmap.
 -- Fix nodes remaining as PLANNED after slurmctld save state recovery.
 -- Fix regression in 22.05.0rc1 that broke Nodes=ALL in a NodeSet.
 -- Fix incorrect memory constraint when receiving a job from 20.11 that uses
    cpu count for memory calculation.
 -- openapi/v0.0.[36-38] - avoid possible crash from jobs submitted with argv.
 -- openapi/v0.0.[36-38] - avoid possible crash from rejected jobs submitted
    with batch_features.
 -- srun - fix regression in 22.05.7 that prevented slurmctld from connecting
    to an srun running outside of a compute node.

* Changes in Slurm 22.05.8
==========================
 -- Fix potential deadlock at slurmctld startup when job has invalid qos.
 -- Avoid unnecessary call to clusteracct_storage_g_cluster_tres() when pinging
    dynamic nodes. This avoids significant slowdowns for slurmctld when
    ping_nodes() calls all nodes to re-register.
 -- openapi/dbv0.0.3[6-8] - fix segfault that could arrise from Slurm database
    connnection failing.
 -- Fix regression introduced in 22.05.0rc1 when updating a NodeName=<nodelist>
    with NodeAddr and/or NodeHostname if the specified nodelist wasn't sorted.
 -- openapi/v0.0.38 - change type of nice field for job submissions to integer
    from string.
 -- openapi/v0.0.38 - add oversubscribe option to job submission properties.
 -- openapi/v0.0.38 - fix incorrect data used to populate "time/start" field
    for jobs.
 -- openapi/dbv0.0.38 - avoid dumping failure if preempt qos with level 0 is
    provided by slurmdbd query.
 -- Avoid an fd leak when lib dir for sbcast fails to be created.
 -- common/slurmdbd_pack - fix env and script hash when unpacking a 21.08
    dbd_job_start_msg_t.
 -- Fix a race between job_container/tmpfs, cncu, x11 setup and adoption of pids
    in cray with pam_slurm_adopt.

* Changes in Slurm 22.05.7
==========================
 -- Fix slurmctlds in a federation not recovering a lost connection until a
    slurmctld restart or a federation update.
 -- Fix incorrectly rejecting jobs that request GRES on multiple sockets and
    --gres-flags=enforce-binding.
 -- Fix job core selection with --gres-flags=enforce-binding: this fixes cases
    where enforce-binding was not respected.
 -- openapi/v0.0.38 - set assoc_id resolution failure as a debug log instead of
    an error log.
 -- Fix issues when running in FrontEnd mode.
 -- Fix srun and salloc I/O code to set keepaliveinterval/keepalivetime on
    connections.
 -- Fix overwrite race of cont_id in cgroup/v2 when using task/cgroup with
    proctrack/cray_aries.
 -- Fix node remaining allocated after a reconfig with a completing job that
    has an EpilogSlurmctld instance still running.
 -- openapi/dbv0.0.38 - fix a cast to a wrong type
 -- openapi/dbv0.0.38 - correct issues where modifying association fields were
    ignored.
 -- openapi/dbv0.0.38 - correct issue where 16 bit integers were not able to be
    unset.
 -- openapi/dbv0.0.38 - correct issue where 16 & 32 bit integers were not able
    to be unset.
 -- Fix 'scontrol show hostlist' to read off a pipe correctly.
 -- Fix 'scontrol reconfigure' with configless enabled to send updated configs
    to 21.08 nodes correctly. (22.05 nodes are unaffected.)
 -- Fix assertion and locks for dynamic node registrations with rpc queueing.
 -- rest_auth/local - avoid logging root access as an error but instead as a
    normal info log.
 -- slurmrestd - switch users earlier on startup to avoid sockets being made as
    root.
 -- slurmrestd - disable umask during socket creation as the authentication is
    handled by Slurm instead of file ACLs.
 -- Fix sbcast, srun --bcast, sstat not working with cloud/dynamic nodes.
 -- sacctmgr - Allow removal of user's default account when AllowNoDefAcct=yes.
 -- Fix segfault caused by race condition when a reconfiguration is requested
    while slurmd initializes.
 -- openapi/v0.0.38 - avoid divison by zero causing slurmrestd to crash during
    diag queries.
 -- Update default values for text/blob columns in the database if upgrading
    to MariaDB >= 10.2.1 from a pre-10.2.1 version or from MySQL to avoid
    sacctmgr failures.
 -- Fix several minor memory leaks in the cgroup/v2 plugin.
 -- Fix possible issue when enabling controllers with long names in cgroup/v2.
 -- Fix potential segfault in slurmd when using acct_gather_energy/ipmi.
 -- Fix controller being able to contact non-addressable step hosts.
 -- Allow setting SuspendTime to -1 when used on a partition.
 -- openapi/v0.0.38 - fix maximum_memory_per_node description typo.
 -- openapi/v0.0.38 - add maximum_memory_per_cpu to GET /partitions
 -- openapi/v0.0.38 - add default_memory_per_node to GET /partitions
 -- Fix dynamic node losing dynamic node status when changing state to FUTURE.
 -- Fix adoption into most recent job in pam_slurm_adopt and cgroup/v2.
 -- gres/shard - Fix plugin_name definition to print correctly in debug lines.

* Changes in Slurm 22.05.6
==========================
 -- Fix a partition's DisableRootJobs=no from preventing root jobs from working.
 -- Fix the number of allocated cpus for an auto-adjustment case in which the
    job requests --ntasks-per-node and --mem (per-node) but the limit is
    MaxMemPerCPU.
 -- Fix POWER_DOWN_FORCE request leaving node in completing state.
 -- Do not count magnetic reservation queue records towards backfill limits.
 -- Clarify error message when --send-libs=yes or BcastParameters=send_libs
    fails to identify shared library files, and avoid creating an empty
    "<filename>_libs" directory on the target filesystem.
 -- Fix missing CoreSpec on dynamic nodes upon slurmctld restart.
 -- Fix node state reporting when using specialized cores.
 -- Fix number of CPUs allocated if --cpus-per-gpu used.
 -- Add flag ignore_prefer_validation to not validate --prefer on a job.
 -- Fix salloc/sbatch SLURM_TASKS_PER_NODE output environment variable when the
    number of tasks is not requested.
 -- Permit using wildcard magic cookies with X11 forwarding.
 -- cgroup/v2 - Add check for swap when running OOM check after task
    termination.
 -- Fix deadlock caused by race condition when disabling power save with a
    reconfigure.
 -- Fix memory leak in the dbd when container is sent to the database.
 -- openapi/dbv0.0.38 - correct dbv0.0.38_tres_info.
 -- Fix node SuspendTime, SuspendTimeout, ResumeTimeout being updated after
    altering partition node lists with scontrol.
 -- jobcomp/elasticsearch - fix data_t memory leak after serialization.
 -- Fix issue where '*' wasn't accepted in gpu/cpu bind.
 -- Fix SLURM_GPUS_ON_NODE for shared GPU gres (MPS, shards).
 -- Add SLURM_SHARDS_ON_NODE environment variable for shards.
 -- Fix srun error with overcommit.
 -- Fix bug in core selection for the default cyclic distribution of tasks
    across sockets, that resulted in random task launch failures.
 -- Fix core selection for steps requesting multiple tasks per core when
    allocation contains more cores than required for step.
 -- gpu/nvml - Fix MIG minor number generation when GPU minor number
    (/dev/nvidia[minor_number]) and index (as seen in nvidia-smi) do not match.
 -- Fix accrue time underflow errors after slurmctld reconfig or restart.
 -- Surpress errant errors from prolog_complete about being unable to locate
    "node:(null)".
 -- Fix issue where shards were selected from multiple gpus and failed to
    allocate.
 -- Fix step cpu count calculation when using --ntasks-per-gpu=.
 -- Fix overflow problems when validating array index parameters in slurmctld
    and prevent a potential condition causing slurmctld to crash.
 -- Remove dependency on json-c in slurmctld when running with power saving.
    Only the new "SLURM_RESUME_FILE" support relies on this, and it will be
    disabled if json-c support is unavailable instead.

* Changes in Slurm 22.05.5
==========================
 -- Fix node becoming IDLE while in an invalid registration state.
 -- When a job is completing avoid potential dereference.
 -- Avoid setting preempt_time for a job erroneously.
 -- Fix situation where we don't requeue correctly when a job is finishing.
 -- job_container/tmpfs - Avoid leaking namespace file descriptor.
 -- common/slurm_opt - fix memory leak in client commands or slurmrestd when the
    --chdir option is set after option reset.
 -- openapi/dbv0.0.38 - gracefully handle unknown associations assigned to jobs.
 -- openapi/dbv0.0.38 - query all associations to avoid errors while dumping
    jobs.
 -- Load hash plugin at slurmstepd launch time to prevent issues loading the
    plugin at step completion if the Slurm installation is upgraded.
 -- Fix gcc 12.2.1 compile errors.
 -- Fix future magnetic reservations preventing heterogeneous jobs from
    starting.
 -- Prevent incorrect error message from being generated for operator/admins
    using the 'scontrol top' command.
 -- slurmrestd - correct issue where larger requests could result in a single
    byte getting removed from inside of the POST request.
 -- Fix regression in task count calculation for --ntasks-per-gpu with multiple
    nodes.
 -- Update nvml plugin to match the unique id format for MIG devices in new
    Nvidia drivers.
 -- Fix segfault on backup slurmdbd if no QoS is present in DB.
 -- Fix clang 11 compile errors.
 -- Fix task distribution calculations across sockets with
    --distribution=cyclic.
 -- Fix task distribution calculations with --ntasks-per-gpu specified without
    an explicit --ntasks value.
 -- Fix job arrays not showing correct features.
 -- Fix job having wrong features used when using preferred features.
 -- Fix task/cray_aries error finishing an interactive step, avoiding correct
    cleanup.
 -- Correctly set max_nodes when --ntasks=1.
 -- Fix configure script on FreeBSD.

* Changes in Slurm 22.05.4
==========================
 -- Fix return code from salloc when the job is revoked prior to executing user
    command.
 -- Fix minor memory leak when dealing with gres with multiple files.
 -- Fix printing for no_consume gres in scontrol show job.
 -- sinfo - Fix truncation of very large values when outputting memory.
 -- Fix multi-node step launch failure when nodes in the controller aren't in
    natural order. This can happen with inconsistent node naming (such as
    node15 and node052) or with dynamic nodes which can register in any order.
 -- job_container/tmpfs - Prevent reading the plugin config multiple times per
    step.
 -- Fix wrong attempt of gres binding for gres w/out cores defined.
 -- Fix build to work with '--without-shared-libslurm' configure flag.
 -- Fix power_save mode when repeatedly configuring too fast.
 -- Fix sacct -I option.
 -- Prevent jobs from being scheduled on future nodes.
 -- Fix memory leak in slurmd happening on reconfigure when CPUSpecList used.
 -- Fix sacctmgr show event [min|max]cpus.
 -- Fix regression in 22.05.0rc1 where a prolog or epilog that redirected stdout
    to a file could get erroneously killed, resulting in job launch failure
    (for the prolog) and the node being drained.
 -- cgroup/v1 - Make a static variable to remove potential redundant checking
    for if the system has swap or not.
 -- cgroup/v1 - Add check for swap when running OOM check after task
    termination.
 -- job_submit/lua - add --prefer support
 -- cgroup/v1 - fix issue where sibling steps could incorrectly be accounted as
    OOM when step memory limit was the same as the job allocation. Detect OOM
    events via memory.oom_control oom_kill when exposed by the kernel instead of
    subscribing notifications with eventfd.
 -- Fix accounting of oom_kill events in cgroup/v2 and task/cgroup.
 -- Fix segfault when slurmd reports less than configured gres with links after
    a slurmctld restart.
 -- Fix TRES counts after node is deleted using scontrol.
 -- sched/backfill - properly handle multi-reservation HetJobs.
 -- sched/backfill - don't try to start HetJobs after system state change.
 -- openapi/v0.0.38 - add submission of job->prefer value.
 -- slurmdbd - become SlurmUser at the same point in logic as slurmctld to match
    plugins initialization behavior. This avoids a fatal error when starting
    slurmdbd as root and root cannot start the auth or accounting_storage
    plugins (for example, if root cannot read the jwt key).
 -- Fix memory leak when attempting to update a job's features with invalid
    features.
 -- Fix occasional slurmctld crash or hang in backfill due to invalid pointers.
 -- Fix segfault on Cray machines if cgroup cpuset is used in cgroup/v1.

* Changes in Slurm 22.05.3
==========================
 -- job_container/tmpfs - cleanup containers even when the .ns file isn't
    mounted anymore.
 -- Ignore the bf_licenses option if using sched/builtin.
 -- Do not clear the job's requested QOS (qos_id) when ineligible due to QOS.
 -- Emit error and add fail-safe when job's qos_id changes unexpectedly.
 -- Fix timeout value in log.
 -- openapi/v0.0.38 - fix setting of DefaultTime when dumping a partition.
 -- openapi/dbv0.0.38 - correct parsing association QOS field.
 -- Fix LaunchParameters=mpir_use_nodeaddr.
 -- Fix various edge cases where accrue limits could be exceeded or cause
    underflow error messages.
 -- Fix issue where a job requesting --ntasks and --nodes could be wrongly
    rejected when spanning heterogeneous nodes.
 -- openapi/v0.0.38 - detect when partition PreemptMode is disabled
 -- openapi/v0.0.38 - add QOS flag to handle partition PreemptMode=within
 -- Add total_cpus and total_nodes values to the partition list in
    the job_submit/lua plugin.
 -- openapi/dbv0.0.38 - reject and error on invalid flag values in well defined
    flag fields.
 -- openapi/dbv0.0.38 - correct QOS preempt_mode flag requests being silently
    ignored.
 -- accounting_storage/mysql - allow QOS preempt_mode flag updates when GANG
    mode is requested.
 -- openapi/dbv0.0.38 - correct QOS flag modifications request being silently
    ignored.