diff --git a/ietf/utils/management/commands/coverage_changes.py b/ietf/utils/management/commands/coverage_changes.py
index d25db4b71..935971cba 100644
--- a/ietf/utils/management/commands/coverage_changes.py
+++ b/ietf/utils/management/commands/coverage_changes.py
@@ -108,12 +108,16 @@ class Command(BaseCommand):
                         mlines, mcov = mcoverage[mkey]
                     elif mformat == 4:
                         mlines, mcov = mcoverage[mkey]
+                    elif mformat == 5:
+                        mlines, mcov, mmissnum, mmisslines = mcoverage[mkey]
                     else:
                         raise CommandError("The release coverage data has an unknown format ('%s'), quitting." % mformat)
                 if   lformat == 1:
                     linfo, lcov = None, lcoverage[key]
                 elif lformat in [2, 4]:
                     linfo, lcov = lcoverage[key]
+                elif lformat == 5:
+                    linfo, lcov, lmissnum, lmisslines = lcoverage[key]
                 else:
                     raise CommandError("The latest coverage data has an unknown format ('%s'), quitting." % lformat)
                     
diff --git a/ietf/utils/test_runner.py b/ietf/utils/test_runner.py
index 03a221e5a..8612079c5 100644
--- a/ietf/utils/test_runner.py
+++ b/ietf/utils/test_runner.py
@@ -236,12 +236,16 @@ class CoverageReporter(Reporter):
         self.find_file_reporters(None)
 
         total = Numbers()
-        result = {"coverage": 0.0, "covered": {}, "format": 2, }
+        result = {"coverage": 0.0, "covered": {}, "format": 5, }
         for fr in self.file_reporters:
             try:
                 analysis = self.coverage._analyze(fr)
                 nums = analysis.numbers
-                result["covered"][fr.relative_filename()] = (nums.n_statements, nums.pc_covered/100.0)
+                missing_nums = sorted(analysis.missing)
+                with open(analysis.filename) as file:
+                    lines = file.read().splitlines()
+                missing_lines = [ lines[l-1] for l in missing_nums ]
+                result["covered"][fr.relative_filename()] = (nums.n_statements, nums.pc_covered/100.0, missing_nums, missing_lines)
                 total += nums
             except KeyboardInterrupt:                   # pragma: not covered
                 raise
diff --git a/release-coverage.json.gz b/release-coverage.json.gz
index b0c807033..0267478ed 100644
Binary files a/release-coverage.json.gz and b/release-coverage.json.gz differ