diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 6e3ed5c6e..ae903d142 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -24,7 +24,7 @@ repos:
     -   id: codespell
         exclude: ^(dandi/_version\.py|dandi/due\.py|versioneer\.py)$
 -   repo: https://github.com/PyCQA/flake8
-    rev: 4.0.1
+    rev: 7.0.0
     hooks:
       - id: flake8
         exclude: ^(dandi/_version\.py|dandi/due\.py|versioneer\.py)$
diff --git a/dandi/files/bases.py b/dandi/files/bases.py
index 563ed07de..751f6d27e 100644
--- a/dandi/files/bases.py
+++ b/dandi/files/bases.py
@@ -401,7 +401,7 @@ def iter_upload(
                                 bytes_uploaded += out_part["size"]
                                 yield {
                                     "status": "uploading",
-                                    "upload": 100 * bytes_uploaded / total_size,
+                                    "progress": 100 * bytes_uploaded / total_size,
                                     "current": bytes_uploaded,
                                 }
                                 parts_out.append(out_part)
diff --git a/dandi/files/zarr.py b/dandi/files/zarr.py
index 9b7e82cd1..1c5140c08 100644
--- a/dandi/files/zarr.py
+++ b/dandi/files/zarr.py
@@ -19,6 +19,7 @@
 from dandi import get_logger
 from dandi.consts import (
     MAX_ZARR_DEPTH,
+    ZARR_DELETE_BATCH_SIZE,
     ZARR_MIME_TYPE,
     ZARR_UPLOAD_BATCH_SIZE,
     EmbargoStatus,
@@ -442,7 +443,11 @@ def mkzarr() -> str:
                                     local_digest,
                                 )
                 if to_delete:
-                    a.rmfiles(to_delete, reingest=False)
+                    yield from _rmfiles(
+                        asset=a,
+                        entries=to_delete,
+                        status="deleting conflicting remote files",
+                    )
             else:
                 yield {"status": "traversing local Zarr"}
                 for local_entry in self.iterfiles():
@@ -497,7 +502,7 @@ def mkzarr() -> str:
                                 bytes_uploaded += size
                                 yield {
                                     "status": "uploading",
-                                    "upload": 100
+                                    "progress": 100
                                     * bytes_uploaded
                                     / to_upload.total_size,
                                     "current": bytes_uploaded,
@@ -506,13 +511,16 @@ def mkzarr() -> str:
             lgr.debug("%s: All files uploaded", asset_path)
             old_zarr_files = list(old_zarr_entries.values())
             if old_zarr_files:
-                yield {"status": "deleting extra remote files"}
                 lgr.debug(
                     "%s: Deleting %s in remote Zarr not present locally",
                     asset_path,
                     pluralize(len(old_zarr_files), "file"),
                 )
-                a.rmfiles(old_zarr_files, reingest=False)
+                yield from _rmfiles(
+                    asset=a,
+                    entries=old_zarr_files,
+                    status="deleting extra remote files",
+                )
                 changed = True
             if changed:
                 lgr.debug(
@@ -533,9 +541,9 @@ def mkzarr() -> str:
                             lgr.info(
                                 "%s: Asset checksum mismatch (local: %s;"
                                 " server: %s); redoing upload",
+                                asset_path,
                                 our_checksum,
                                 server_checksum,
-                                asset_path,
                             )
                             yield {"status": "Checksum mismatch"}
                         break
@@ -677,3 +685,24 @@ def _cmp_digests(
     else:
         lgr.debug("%s: File %s already on server; skipping", asset_path, local_entry)
         return (local_entry, local_digest, False)
+
+
+def _rmfiles(
+    asset: RemoteZarrAsset, entries: list[RemoteZarrEntry], status: str
+) -> Iterator[dict]:
+    # Do the batching outside of the rmfiles() method so that we can report
+    # progress on the completion of each batch
+    yield {
+        "status": status,
+        "progress": 0,
+        "current": 0,
+    }
+    deleted = 0
+    for ents in chunked(entries, ZARR_DELETE_BATCH_SIZE):
+        asset.rmfiles(ents, reingest=False)
+        deleted += len(ents)
+        yield {
+            "status": status,
+            "progress": deleted / len(entries) * 100,
+            "current": deleted,
+        }
diff --git a/dandi/support/pyout.py b/dandi/support/pyout.py
index 25719ada7..7ceaf5680 100644
--- a/dandi/support/pyout.py
+++ b/dandi/support/pyout.py
@@ -160,7 +160,7 @@ def get_style(hide_if_missing=True):
             ),
             aggregate=counts,
         ),
-        "upload": progress_style,
+        "progress": progress_style,
         "done%": progress_style,
         "checksum": dict(
             align="center",
diff --git a/dandi/upload.py b/dandi/upload.py
index c5f553514..3a8be977f 100644
--- a/dandi/upload.py
+++ b/dandi/upload.py
@@ -146,13 +146,13 @@ def check_len(obj: io.IOBase, name: Any) -> None:
                         raise RuntimeError(
                             f"requests.utils.super_len() reported size of 0 for"
                             f" {name!r}, but os.stat() reported size"
-                            f" {stat_size} bytes {i+1} tries later"
+                            f" {stat_size} bytes {i + 1} tries later"
                         )
                     if fstat_size not in (None, 0):
                         raise RuntimeError(
                             f"requests.utils.super_len() reported size of 0 for"
                             f" {name!r}, but os.fstat() reported size"
-                            f" {fstat_size} bytes {i+1} tries later"
+                            f" {fstat_size} bytes {i + 1} tries later"
                         )
                 lgr.debug(
                     "- Size of %r still appears to be 0 after 10 rounds of"
@@ -403,9 +403,9 @@ def upload_agg(*ignored: Any) -> str:
             return "%s/s" % naturalsize(speed)
 
         pyout_style = pyouts.get_style(hide_if_missing=False)
-        pyout_style["upload"]["aggregate"] = upload_agg
+        pyout_style["progress"]["aggregate"] = upload_agg
 
-        rec_fields = ["path", "size", "errors", "upload", "status", "message"]
+        rec_fields = ["path", "size", "errors", "progress", "status", "message"]
         out = pyouts.LogSafeTabular(
             style=pyout_style, columns=rec_fields, max_workers=jobs or 5
         )