diff --git a/comma/util/spreadsheet.py b/comma/util/spreadsheet.py
index d33160a..219b6a8 100644
--- a/comma/util/spreadsheet.py
+++ b/comma/util/spreadsheet.py
@@ -153,6 +153,7 @@ class Spreadsheet:
 
         # Collect the commits in the database and not in the workbook, but that we want to include.
         db_commits = self.get_db_commits()
+        # TODO (Issue 50): Don't use a hard-coded value here, use --upstream_since instead
         tag = "v4.15"
         if tag in self.repo.references:
             LOGGER.info("Skipping commits before tag '%s'!", tag)
diff --git a/comma/util/symbols.py b/comma/util/symbols.py
index 99ecfd1..3eac418 100755
--- a/comma/util/symbols.py
+++ b/comma/util/symbols.py
@@ -72,6 +72,7 @@ class Symbols:
                 self.repo.get_tracked_paths(self.config.upstream.sections),
             )
 
+    # TODO (Issue 65): Avoid hard-coding commit ID
     def map_symbols_to_patch(
         self, commits: Iterable[str], paths, prev_commit="097c1bd5673edaf2a162724636858b71f658fdd2"
     ):
diff --git a/comma/util/tracking.py b/comma/util/tracking.py
index 6d45e1c..57799c2 100644
--- a/comma/util/tracking.py
+++ b/comma/util/tracking.py
@@ -111,6 +111,7 @@ class Repo:
         paths = set()
 
         # All tags starting with v4, also master.
+        # TODO (Issue 66): This uses a hard-coded regex and relies on tags that may not be available
         refs = [
             tag
             for tag in self.obj.git.tag("v[^123]*", list=True).split()