diff --git a/CHANGES.md b/CHANGES.md
index 513c159d..1ed8d175 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -13,6 +13,21 @@ development source code and as such may not be routinely kept up to date.
 
 # __NEXT__
 
+## Improvements
+
+* Snakemake's per-input/output file metadata (stored in `.snakemake/metadata/`)
+  is now downloaded from AWS Batch builds by default.  Like file modification
+  times (mtimes), which are already preserved from the remote build, this
+  additional metadata is used by Snakemake to track when inputs have changed
+  and when it should regenerate outputs.  The metadata is also used in
+  [Snakemake report generation](https://snakemake.readthedocs.io/en/v8.14.0/snakefiles/reporting.html#rendering-reports)
+  and can be useful for gathering ad-hoc workflow statistics.
+
+  The runtime image used must be at least `nextstrain/base:build-20240617T235011Z`
+  for these Snakemake metadata files to be available for download from the AWS
+  Batch job.
+  ([#374](https://github.com/nextstrain/cli/pull/374))
+
 
 # 8.4.0 (29 May 2024)
 
diff --git a/nextstrain/cli/runner/aws_batch/s3.py b/nextstrain/cli/runner/aws_batch/s3.py
index 02343e1f..7d07fb9f 100644
--- a/nextstrain/cli/runner/aws_batch/s3.py
+++ b/nextstrain/cli/runner/aws_batch/s3.py
@@ -119,8 +119,12 @@ def download_workdir(remote_workdir: S3Object, workdir: Path, patterns: List[str
     ])
 
     included = path_matcher([
-        # But we do want the Snakemake logs to come over.
+        # But we do want the Snakemake logs to come over…
         ".snakemake/log/",
+
+        # …and the input/output metadata Snakemake tracks (akin to mtimes,
+        # which we also preserve).
+        ".snakemake/metadata/",
     ])
 
     if patterns: