diff --git a/packages/adcp-reporting-storage/CHANGELOG.next.md b/packages/adcp-reporting-storage/CHANGELOG.next.md
new file mode 100644
index 000000000..5e6699b1b
--- /dev/null
+++ b/packages/adcp-reporting-storage/CHANGELOG.next.md
@@ -0,0 +1,6 @@
+# Changelog (next)
+
+The SDK 10 line of `adcp-reporting-storage`, released from `next` as
+`0.2.0-beta.N` pre-releases beside `adcp` `10.0.0-beta.N`. The SDK 9 line's
+changelog is `CHANGELOG.md`, released from `main`. Release Please appends the
+entries below.
diff --git a/packages/adcp-reporting-storage/pyproject.toml b/packages/adcp-reporting-storage/pyproject.toml
index 24bce3ca0..4e34eb086 100644
--- a/packages/adcp-reporting-storage/pyproject.toml
+++ b/packages/adcp-reporting-storage/pyproject.toml
@@ -33,10 +33,10 @@ dependencies = [
     # ``adcp.reporting`` helpers, so the range is one major: a new ``adcp``
     # major means a new release here.
     #
-    # On the next draft-spec line the range also admits adcp 10 pre-releases so
-    # the workspace installs once next cuts 10.0.0aN. next never releases this
-    # distribution; at ratification its first adcp-10 release narrows the range
-    # to ``adcp>=10.0.0,<11`` (RELEASING.md, Ratification).
+    # On next this range also admits adcp 10 pre-releases: next releases this
+    # distribution as its SDK 10 companion (0.2.0-beta.N), and the workspace
+    # must still install while pyproject.toml carries main's version. At
+    # ratification the range narrows to ``adcp>=10.0.0,<11`` (RELEASING.md).
     "adcp>=9.0.0,<11",
     # RFC 8785 canonical JSON for row bodies and object keys; the same pin as adcp.
     "rfc8785>=0.1.4",