diff --git a/NEWS b/NEWS
index a00e883..4b92e4d 100644
--- a/NEWS
+++ b/NEWS
@@ -1,4 +1,15 @@
-1.2.1.dev0
+1.2.3.dev0
+ * #87: Support for Borg create --checkpoint-interval via "checkpoint_interval" option in
+   borgmatic's storage configuration.
+ * #88: Fix declared pykwalify compatibility version range in setup.py to prevent use of ancient
+   versions of pykwalify with large version numbers.
+ * #89: Pass --show-rc option to Borg when at highest verbosity level.
+
+1.2.2
+ * #85: Fix compatibility issue between pykwalify and ruamel.yaml 0.15.52, which manifested in
+   borgmatic as a pykwalify RuleError.
+
+1.2.1
  * Skip before/after backup hooks when only doing --prune, --check, --list, and/or --info.
  * #71: Support for XDG_CONFIG_HOME environment variable for specifying alternate user ~/.config/
    path.
diff --git a/borgmatic/borg/check.py b/borgmatic/borg/check.py
index d5bdb82..9d340df 100644
--- a/borgmatic/borg/check.py
+++ b/borgmatic/borg/check.py
@@ -93,7 +93,7 @@ def check_archives(verbosity, repository, storage_config, consistency_config, lo
         lock_wait_flags = ('--lock-wait', str(lock_wait)) if lock_wait else ()
         verbosity_flags = {
             VERBOSITY_SOME: ('--info',),
-            VERBOSITY_LOTS: ('--debug',),
+            VERBOSITY_LOTS: ('--debug', '--show-rc'),
         }.get(verbosity, ())
         prefix = consistency_config.get('prefix')
 
diff --git a/borgmatic/borg/create.py b/borgmatic/borg/create.py
index 632f39c..1f03878 100644
--- a/borgmatic/borg/create.py
+++ b/borgmatic/borg/create.py
@@ -115,6 +115,7 @@ def create_archive(
 
     pattern_file = _write_pattern_file(location_config.get('patterns'))
     exclude_file = _write_pattern_file(_expand_directories(location_config.get('exclude_patterns')))
+    checkpoint_interval = storage_config.get('checkpoint_interval', None)
     compression = storage_config.get('compression', None)
     remote_rate_limit = storage_config.get('remote_rate_limit', None)
     umask = storage_config.get('umask', None)
@@ -140,6 +141,7 @@ def create_archive(
             location_config,
             exclude_file.name if exclude_file else None,
         )
+        + (('--checkpoint-interval', str(checkpoint_interval)) if checkpoint_interval else ())
         + (('--compression', compression) if compression else ())
         + (('--remote-ratelimit', str(remote_rate_limit)) if remote_rate_limit else ())
         + (('--one-file-system',) if location_config.get('one_file_system') else ())
@@ -149,8 +151,8 @@ def create_archive(
         + (('--umask', str(umask)) if umask else ())
         + (('--lock-wait', str(lock_wait)) if lock_wait else ())
         + {
-            VERBOSITY_SOME: ('--info',) if dry_run else ('--info', '--stats',),
-            VERBOSITY_LOTS: ('--debug', '--list',) if dry_run else ('--debug', '--list', '--stats',),
+            VERBOSITY_SOME: ('--info',) if dry_run else ('--info', '--stats'),
+            VERBOSITY_LOTS: ('--debug', '--list', '--show-rc') if dry_run else ('--debug', '--list', '--show-rc', '--stats'),
         }.get(verbosity, ())
         + (('--dry-run',) if dry_run else ())
     )
diff --git a/borgmatic/borg/extract.py b/borgmatic/borg/extract.py
index d3d62a3..8318c4c 100644
--- a/borgmatic/borg/extract.py
+++ b/borgmatic/borg/extract.py
@@ -17,7 +17,7 @@ def extract_last_archive_dry_run(verbosity, repository, lock_wait=None, local_pa
     lock_wait_flags = ('--lock-wait', str(lock_wait)) if lock_wait else ()
     verbosity_flags = {
         VERBOSITY_SOME: ('--info',),
-        VERBOSITY_LOTS: ('--debug',),
+        VERBOSITY_LOTS: ('--debug', '--show-rc'),
     }.get(verbosity, ())
 
     full_list_command = (
diff --git a/borgmatic/borg/info.py b/borgmatic/borg/info.py
index b7417a8..1925374 100644
--- a/borgmatic/borg/info.py
+++ b/borgmatic/borg/info.py
@@ -23,7 +23,7 @@ def display_archives_info(
         + (('--json',) if json else ())
         + {
             VERBOSITY_SOME: ('--info',),
-            VERBOSITY_LOTS: ('--debug',),
+            VERBOSITY_LOTS: ('--debug', '--show-rc'),
         }.get(verbosity, ())
     )
 
diff --git a/borgmatic/borg/list.py b/borgmatic/borg/list.py
index 3042781..521ccd5 100644
--- a/borgmatic/borg/list.py
+++ b/borgmatic/borg/list.py
@@ -23,7 +23,7 @@ def list_archives(
         + (('--json',) if json else ())
         + {
             VERBOSITY_SOME: ('--info',),
-            VERBOSITY_LOTS: ('--debug',),
+            VERBOSITY_LOTS: ('--debug', '--show-rc'),
         }.get(verbosity, ())
     )
 
diff --git a/borgmatic/borg/prune.py b/borgmatic/borg/prune.py
index 09e1c9b..2a04b38 100644
--- a/borgmatic/borg/prune.py
+++ b/borgmatic/borg/prune.py
@@ -56,7 +56,7 @@ def prune_archives(verbosity, dry_run, repository, storage_config, retention_con
         + (('--lock-wait', str(lock_wait)) if lock_wait else ())
         + {
             VERBOSITY_SOME: ('--info', '--stats',),
-            VERBOSITY_LOTS: ('--debug', '--stats', '--list'),
+            VERBOSITY_LOTS: ('--debug', '--stats', '--list', '--show-rc'),
         }.get(verbosity, ())
         + (('--dry-run',) if dry_run else ())
     )
diff --git a/borgmatic/commands/borgmatic.py b/borgmatic/commands/borgmatic.py
index d3e2d04..e496e3d 100644
--- a/borgmatic/commands/borgmatic.py
+++ b/borgmatic/commands/borgmatic.py
@@ -81,7 +81,7 @@ def parse_arguments(*arguments):
         dest='json',
         default=False,
         action='store_true',
-        help='Output results from the --list option as json',
+        help='Output results from the --list or --info options as json',
     )
     parser.add_argument(
         '-n', '--dry-run',
diff --git a/borgmatic/config/schema.yaml b/borgmatic/config/schema.yaml
index a7b9a17..7219a67 100644
--- a/borgmatic/config/schema.yaml
+++ b/borgmatic/config/schema.yaml
@@ -124,6 +124,13 @@ map:
                     punctuation, so it parses correctly. And backslash any quote or backslash
                     literals as well.
                 example: "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~"
+            checkpoint_interval:
+                type: int
+                desc: |
+                    Number of seconds between each checkpoint during a long-running backup. See
+                    https://borgbackup.readthedocs.io/en/stable/faq.html#if-a-backup-stops-mid-way-does-the-already-backed-up-data-stay-there
+                    for details. Defaults to checkpoints every 1800 seconds (30 minutes).
+                example: 1800
             compression:
                 type: scalar
                 desc: |
diff --git a/borgmatic/config/validate.py b/borgmatic/config/validate.py
index bdbbbf7..bb4ab4f 100644
--- a/borgmatic/config/validate.py
+++ b/borgmatic/config/validate.py
@@ -74,8 +74,8 @@ def parse_configuration(config_filename, schema_filename):
     logging.getLogger('pykwalify').setLevel(logging.ERROR)
 
     try:
-        config = yaml.round_trip_load(open(config_filename))
-        schema = yaml.round_trip_load(open(schema_filename))
+        config = yaml.safe_load(open(config_filename))
+        schema = yaml.safe_load(open(schema_filename))
     except yaml.error.YAMLError as error:
         raise Validation_error(config_filename, (str(error),))
 
diff --git a/borgmatic/tests/unit/borg/test_check.py b/borgmatic/tests/unit/borg/test_check.py
index b5d8378..b6208dd 100644
--- a/borgmatic/tests/unit/borg/test_check.py
+++ b/borgmatic/tests/unit/borg/test_check.py
@@ -173,7 +173,7 @@ def test_check_archives_with_verbosity_lots_calls_borg_with_debug_parameter():
     flexmock(module).should_receive('_parse_checks').and_return(checks)
     flexmock(module).should_receive('_make_check_flags').and_return(())
     insert_subprocess_mock(
-        ('borg', 'check', 'repo', '--debug'),
+        ('borg', 'check', 'repo', '--debug', '--show-rc'),
         stdout=None, stderr=STDOUT,
     )
 
diff --git a/borgmatic/tests/unit/borg/test_create.py b/borgmatic/tests/unit/borg/test_create.py
index 411893c..16bea78 100644
--- a/borgmatic/tests/unit/borg/test_create.py
+++ b/borgmatic/tests/unit/borg/test_create.py
@@ -296,7 +296,7 @@ def test_create_archive_with_verbosity_lots_calls_borg_with_debug_parameter():
     flexmock(module).should_receive('_write_pattern_file').and_return(None)
     flexmock(module).should_receive('_make_pattern_flags').and_return(())
     flexmock(module).should_receive('_make_exclude_flags').and_return(())
-    insert_subprocess_mock(CREATE_COMMAND + ('--debug', '--list', '--stats'))
+    insert_subprocess_mock(CREATE_COMMAND + ('--debug', '--list', '--show-rc', '--stats'))
 
     module.create_archive(
         verbosity=VERBOSITY_LOTS,
@@ -359,7 +359,7 @@ def test_create_archive_with_dry_run_and_verbosity_lots_calls_borg_without_stats
     flexmock(module).should_receive('_make_pattern_flags').and_return(())
     flexmock(module).should_receive('_make_pattern_flags').and_return(())
     flexmock(module).should_receive('_make_exclude_flags').and_return(())
-    insert_subprocess_mock(CREATE_COMMAND + ('--debug', '--list', '--dry-run'))
+    insert_subprocess_mock(CREATE_COMMAND + ('--debug', '--list', '--show-rc', '--dry-run'))
 
     module.create_archive(
         verbosity=VERBOSITY_LOTS,
@@ -374,6 +374,26 @@ def test_create_archive_with_dry_run_and_verbosity_lots_calls_borg_without_stats
     )
 
 
+def test_create_archive_with_checkpoint_interval_calls_borg_with_checkpoint_interval_parameters():
+    flexmock(module).should_receive('_expand_directories').and_return(('foo', 'bar')).and_return(())
+    flexmock(module).should_receive('_write_pattern_file').and_return(None)
+    flexmock(module).should_receive('_make_pattern_flags').and_return(())
+    flexmock(module).should_receive('_make_exclude_flags').and_return(())
+    insert_subprocess_mock(CREATE_COMMAND + ('--checkpoint-interval', '600'))
+
+    module.create_archive(
+        verbosity=None,
+        dry_run=False,
+        repository='repo',
+        location_config={
+            'source_directories': ['foo', 'bar'],
+            'repositories': ['repo'],
+            'exclude_patterns': None,
+        },
+        storage_config={'checkpoint_interval': 600},
+    )
+
+
 def test_create_archive_with_compression_calls_borg_with_compression_parameters():
     flexmock(module).should_receive('_expand_directories').and_return(('foo', 'bar')).and_return(())
     flexmock(module).should_receive('_write_pattern_file').and_return(None)
diff --git a/borgmatic/tests/unit/borg/test_extract.py b/borgmatic/tests/unit/borg/test_extract.py
index 9811a78..e8c377d 100644
--- a/borgmatic/tests/unit/borg/test_extract.py
+++ b/borgmatic/tests/unit/borg/test_extract.py
@@ -73,11 +73,11 @@ def test_extract_last_archive_dry_run_with_verbosity_some_should_call_borg_with_
 def test_extract_last_archive_dry_run_with_verbosity_lots_should_call_borg_with_debug_parameter():
     flexmock(sys.stdout).encoding = 'utf-8'
     insert_subprocess_check_output_mock(
-        ('borg', 'list', '--short', 'repo', '--debug'),
+        ('borg', 'list', '--short', 'repo', '--debug', '--show-rc'),
         result='archive1\narchive2\n'.encode('utf-8'),
     )
     insert_subprocess_mock(
-        ('borg', 'extract', '--dry-run', 'repo::archive2', '--debug', '--list'),
+        ('borg', 'extract', '--dry-run', 'repo::archive2', '--debug', '--show-rc', '--list'),
     )
 
     module.extract_last_archive_dry_run(
diff --git a/borgmatic/tests/unit/borg/test_info.py b/borgmatic/tests/unit/borg/test_info.py
index 43e881e..1cfc8f3 100644
--- a/borgmatic/tests/unit/borg/test_info.py
+++ b/borgmatic/tests/unit/borg/test_info.py
@@ -35,7 +35,7 @@ def test_display_archives_info_with_verbosity_some_calls_borg_with_info_paramete
 
 
 def test_display_archives_info_with_verbosity_lots_calls_borg_with_debug_parameter():
-    insert_subprocess_mock(INFO_COMMAND + ('--debug',))
+    insert_subprocess_mock(INFO_COMMAND + ('--debug', '--show-rc'))
 
     module.display_archives_info(
         repository='repo',
diff --git a/borgmatic/tests/unit/borg/test_list.py b/borgmatic/tests/unit/borg/test_list.py
index 48bd095..01eec30 100644
--- a/borgmatic/tests/unit/borg/test_list.py
+++ b/borgmatic/tests/unit/borg/test_list.py
@@ -35,7 +35,7 @@ def test_list_archives_with_verbosity_some_calls_borg_with_info_parameter():
 
 
 def test_list_archives_with_verbosity_lots_calls_borg_with_debug_parameter():
-    insert_subprocess_mock(LIST_COMMAND + ('--debug',))
+    insert_subprocess_mock(LIST_COMMAND + ('--debug', '--show-rc'))
 
     module.list_archives(
         repository='repo',
diff --git a/borgmatic/tests/unit/borg/test_prune.py b/borgmatic/tests/unit/borg/test_prune.py
index 6e3a20d..dccdfa8 100644
--- a/borgmatic/tests/unit/borg/test_prune.py
+++ b/borgmatic/tests/unit/borg/test_prune.py
@@ -92,7 +92,7 @@ def test_prune_archives_with_verbosity_lots_calls_borg_with_debug_parameter():
     flexmock(module).should_receive('_make_prune_flags').with_args(retention_config).and_return(
         BASE_PRUNE_FLAGS,
     )
-    insert_subprocess_mock(PRUNE_COMMAND + ('--debug', '--stats', '--list'))
+    insert_subprocess_mock(PRUNE_COMMAND + ('--debug', '--stats', '--list', '--show-rc'))
 
     module.prune_archives(
         repository='repo',
diff --git a/scripts/find-unsupported-borg-options b/scripts/find-unsupported-borg-options
index cab633d..66188bd 100755
--- a/scripts/find-unsupported-borg-options
+++ b/scripts/find-unsupported-borg-options
@@ -22,22 +22,29 @@ for sub_command in prune create check list info; do
     sort borgmatic_borg_flags > borgmatic_borg_flags.sorted
     mv borgmatic_borg_flags.sorted borgmatic_borg_flags
 
-    for line in $(borg $sub_command --help | awk -v RS= '/^usage:/') ; do
+    for word in $(borg $sub_command --help | grep '^  -') ; do
         # Exclude a bunch of flags that borgmatic actually supports, but don't get exercised by the
         # generated sample config, and also flags that don't make sense to support.
-        echo "$line" | grep -- -- | sed -r 's/(\[|\])//g' \
-            | grep -v '^-h$' \
+        echo "$word" | grep ^-- | sed -e 's/,$//' \
             | grep -v '^--archives-only$' \
-            | grep -v '^--repository-only$' \
-            | grep -v '^--stats$' \
-            | grep -v '^--list$' \
             | grep -v '^--critical$' \
-            | grep -v '^--error$' \
-            | grep -v '^--warning$' \
-            | grep -v '^--info$' \
             | grep -v '^--debug$' \
+            | grep -v '^--dry-run$' \
+            | grep -v '^--error$' \
+            | grep -v '^--help$' \
+            | grep -v '^--info$' \
+            | grep -v '^--list$' \
+            | grep -v '^--nobsdflags$' \
+            | grep -v '^--pattern$' \
+            | grep -v '^--repository-only$' \
+            | grep -v '^--show-rc$' \
+            | grep -v '^--stats$' \
+            | grep -v '^--verbose$' \
+            | grep -v '^--warning$' \
+            | grep -v '^-h$' \
             >> all_borg_flags
     done
+
     sort all_borg_flags > all_borg_flags.sorted
     mv all_borg_flags.sorted all_borg_flags
 
diff --git a/setup.py b/setup.py
index a451f51..bc2891e 100644
--- a/setup.py
+++ b/setup.py
@@ -1,7 +1,7 @@
 from setuptools import setup, find_packages
 
 
-VERSION = '1.2.1.dev0'
+VERSION = '1.2.3.dev0'
 
 
 setup(
@@ -32,7 +32,7 @@ setup(
         'atticmatic',
     ],
     install_requires=(
-        'pykwalify>=1.6.0',
+        'pykwalify>=1.6.0,<14.06',
         'ruamel.yaml>0.15.0,<0.16.0',
         'setuptools',
     ),