diff --git a/bin/codebasin b/bin/codebasin
index 14f41b1..bf33661 100755
--- a/bin/codebasin
+++ b/bin/codebasin
@@ -93,14 +93,6 @@ def main():
         + "May be specified multiple times. "
         + "If not specified, all reports will be generated.",
     )
-    deprecated_args.add_argument(
-        "-d",
-        "--dump",
-        dest="dump",
-        metavar="<file.json>",
-        action="store",
-        help="Dump out annotated platform/parsing tree to <file.json>.",
-    )
     parser.add_argument(
         "-x",
         "--exclude",
@@ -140,13 +132,6 @@ def main():
         max(1, logging.WARNING - 10 * (args.verbose - args.quiet)),
     )
 
-    # Warnings for deprecated functionality with no planned replacement.
-    if args.dump:
-        warnings.warn(
-            "--dump will be removed in a future release.",
-            DeprecationWarning,
-        )
-
     # If no specific report was specified, generate all reports.
     # Handled here to prevent "all" always being in the list.
     if len(args.reports) == 0:
@@ -249,15 +234,6 @@ def main():
     platform_mapper = PlatformMapper(codebase)
     setmap = platform_mapper.walk(state)
 
-    if args.dump:
-        if util.ensure_json(args.dump):
-            report.annotated_dump(args.dump, state)
-        else:
-            logging.getLogger("codebasin").warning(
-                "Output path for annotation dump does not end with .json: "
-                f"'{args.dump}'. Skipping dump.",
-            )
-
     def report_enabled(name):
         if "all" in args.reports:
             return True
diff --git a/codebasin/preprocessor.py b/codebasin/preprocessor.py
index 85ad9e5..1b1d342 100644
--- a/codebasin/preprocessor.py
+++ b/codebasin/preprocessor.py
@@ -551,12 +551,6 @@ def add_child(self, child):
         self.children.append(child)
         child.parent = self
 
-    def to_json(self, assoc):
-        return {
-            "platforms": list(assoc[self]),
-            "children": [x.to_json(assoc) for x in self.children],
-        }
-
     @staticmethod
     def is_start_node():
         """
@@ -614,17 +608,6 @@ def __compute_file_hash(self):
 
         return hasher.hexdigest()
 
-    def to_json(self, assoc):
-        parent_json = super().to_json(assoc)
-        mydict = {
-            "type": "file",
-            "file": self.filename,
-            "name": os.path.basename(self.filename),
-            "sloc": self.total_sloc,
-        }
-        parent_json.update(mydict)
-        return parent_json
-
     def __repr__(self):
         return _representation_string(self, attrs=["filename"])
 
@@ -653,23 +636,6 @@ def __init__(self, start_line=-1, end_line=-1, num_lines=0, source=None):
         self.num_lines = num_lines
         self.source = source
 
-    def to_json(self, assoc):
-        parent_json = super().to_json(assoc)
-        if self.source:
-            source = "\n".join(self.source)
-        else:
-            source = None
-
-        mydict = {
-            "type": "code",
-            "start_line": self.start_line,
-            "end_line": self.end_line,
-            "sloc": self.num_lines,
-            "source": source,
-        }
-        parent_json.update(mydict)
-        return parent_json
-
     def __repr__(self):
         return _representation_string(
             self,
@@ -707,12 +673,6 @@ class DirectiveNode(CodeNode):
     def __init__(self):
         super().__init__()
 
-    def to_json(self, assoc):
-        parent_json = super().to_json(assoc)
-        mydict = {"type": "directive", "source": "\n".join(self.spelling())}
-        parent_json.update(mydict)
-        return parent_json
-
 
 class UnrecognizedDirectiveNode(DirectiveNode):
     """
diff --git a/codebasin/report.py b/codebasin/report.py
index 1090036..0244fe1 100644
--- a/codebasin/report.py
+++ b/codebasin/report.py
@@ -5,7 +5,6 @@
 """
 
 import itertools as it
-import json
 import logging
 import warnings
 
@@ -14,17 +13,6 @@
 log = logging.getLogger("codebasin")
 
 
-def annotated_dump(output_file, state):
-    outlist = []
-    for fname in state.get_filenames():
-        source_tree = state.get_tree(fname)
-        node_associations = state.get_map(fname)
-        outlist.append(source_tree.root.to_json(node_associations))
-
-    with open(output_file, "w") as fp:
-        fp.write(json.dumps(outlist, indent=2))
-
-
 def extract_platforms(setmap):
     """
     Extract a list of unique platforms from a set map