diff --git a/packages/common/NEWS.md b/packages/common/NEWS.md
index 59e2df12c3..74e7f95707 100644
--- a/packages/common/NEWS.md
+++ b/packages/common/NEWS.md
@@ -1,8 +1,8 @@
 User-visible changes in `@endo/common`:
 
-# next release
+# Next release
 
-- Change to `throwLabeled`
+- `throwLabeled` parameterized error construction
   - Like the assertion functions/methods that were parameterized by an error
     constructor (`makeError`, `assert`, `assert.fail`, `assert.equal`),
     `throwLabeled` now also accepts named options `cause` and `errors` in its
diff --git a/packages/errors/NEWS.md b/packages/errors/NEWS.md
index 721867a95e..7cc4c2fbd4 100644
--- a/packages/errors/NEWS.md
+++ b/packages/errors/NEWS.md
@@ -1,6 +1,6 @@
 User-visible changes in `@endo/errors`:
 
-# next release
+# Next release
 
 - `AggegateError` support
   - Assertion functions/methods that were parameterized by an error constructor
diff --git a/packages/marshal/NEWS.md b/packages/marshal/NEWS.md
index bcf9f35117..79f302c736 100644
--- a/packages/marshal/NEWS.md
+++ b/packages/marshal/NEWS.md
@@ -1,6 +1,6 @@
 User-visible changes in `@endo/marshal`:
 
-# next release
+# Next release
 
 - Sending and receiving extended errors.
   - As of the previous release, `@endo/marshal` tolerates extra error
diff --git a/packages/marshal/test/test-marshal-capdata.js b/packages/marshal/test/test-marshal-capdata.js
index f4854083d7..10712862a3 100644
--- a/packages/marshal/test/test-marshal-capdata.js
+++ b/packages/marshal/test/test-marshal-capdata.js
@@ -168,7 +168,6 @@ test('unserialize extended errors', t => {
   t.false('extraProp' in refErr);
   t.false('cause' in refErr);
   t.false('errors' in refErr);
-  console.log('error with extra prop', refErr);
 
   const aggErr = uns(
     '{"@qclass":"error","message":"msg","name":"AggregateError","extraProp":"foo","cause":"bar","errors":["zip","zap"]}',
@@ -177,7 +176,6 @@ test('unserialize extended errors', t => {
   t.false('extraProp' in aggErr);
   t.false('cause' in aggErr);
   t.is(aggErr.errors.length, 0);
-  console.log('error with extra prop', aggErr);
 
   const unkErr = uns(
     '{"@qclass":"error","message":"msg","name":"UnknownError","extraProp":"foo","cause":"bar","errors":["zip","zap"]}',
@@ -186,14 +184,12 @@ test('unserialize extended errors', t => {
   t.false('extraProp' in unkErr);
   t.false('cause' in unkErr);
   t.false('errors' in unkErr);
-  console.log('error with extra prop', unkErr);
 });
 
-test('unserialize errors w recognized extensions', t => {
-  if (typeof AggregateError === 'undefined') {
-    t.pass('skip test on platforms prior to AggregateError');
-    return;
-  }
+const testIfAggregateError =
+  typeof AggregateError !== 'undefined' ? test : test.skip;
+
+testIfAggregateError('unserialize errors w recognized extensions', t => {
   const { unserialize } = makeTestMarshal();
   const uns = body => unserialize({ body, slots: [] });
 
@@ -206,7 +202,6 @@ test('unserialize errors w recognized extensions', t => {
   t.false('extraProp' in refErr);
   t.is(getPrototypeOf(refErr.cause), URIError.prototype);
   t.is(getPrototypeOf(refErr.errors[0]), URIError.prototype);
-  console.log('error with extra prop', refErr);
 
   const aggErr = uns(
     `{"@qclass":"error","message":"msg","name":"AggregateError","extraProp":"foo","cause":${errEnc},"errors":[${errEnc}]}`,
@@ -215,7 +210,6 @@ test('unserialize errors w recognized extensions', t => {
   t.false('extraProp' in aggErr);
   t.is(getPrototypeOf(aggErr.cause), URIError.prototype);
   t.is(getPrototypeOf(aggErr.errors[0]), URIError.prototype);
-  console.log('error with extra prop', aggErr);
 
   const unkErr = uns(
     `{"@qclass":"error","message":"msg","name":"UnknownError","extraProp":"foo","cause":${errEnc},"errors":[${errEnc}]}`,
@@ -224,8 +218,6 @@ test('unserialize errors w recognized extensions', t => {
   t.false('extraProp' in unkErr);
   t.is(getPrototypeOf(unkErr.cause), URIError.prototype);
   t.is(getPrototypeOf(unkErr.errors[0]), URIError.prototype);
-
-  console.log('error with extra prop', unkErr);
 });
 
 test('passStyleOf null is "null"', t => {
diff --git a/packages/marshal/test/test-marshal-smallcaps.js b/packages/marshal/test/test-marshal-smallcaps.js
index 86e75bdeca..917d7e03d0 100644
--- a/packages/marshal/test/test-marshal-smallcaps.js
+++ b/packages/marshal/test/test-marshal-smallcaps.js
@@ -174,7 +174,6 @@ test('smallcaps unserialize extended errors', t => {
   t.false('extraProp' in refErr);
   t.false('cause' in refErr);
   t.false('errors' in refErr);
-  console.log('error with extra prop', refErr);
 
   const aggErr = uns(
     '#{"#error":"msg","name":"AggregateError","extraProp":"foo","cause":"bar","errors":["zip","zap"]}',
@@ -183,7 +182,6 @@ test('smallcaps unserialize extended errors', t => {
   t.false('extraProp' in aggErr);
   t.false('cause' in aggErr);
   t.is(aggErr.errors.length, 0);
-  console.log('error with extra prop', aggErr);
 
   const unkErr = uns(
     '#{"#error":"msg","name":"UnknownError","extraProp":"foo","cause":"bar","errors":["zip","zap"]}',
@@ -192,7 +190,6 @@ test('smallcaps unserialize extended errors', t => {
   t.false('extraProp' in unkErr);
   t.false('cause' in unkErr);
   t.false('errors' in unkErr);
-  console.log('error with extra prop', unkErr);
 });
 
 test('smallcaps unserialize errors w recognized extensions', t => {
@@ -212,7 +209,6 @@ test('smallcaps unserialize errors w recognized extensions', t => {
   t.false('extraProp' in refErr);
   t.is(getPrototypeOf(refErr.cause), URIError.prototype);
   t.is(getPrototypeOf(refErr.errors[0]), URIError.prototype);
-  console.log('error with extra prop', refErr);
 
   const aggErr = uns(
     `#{"#error":"msg","name":"AggregateError","extraProp":"foo","cause":${errEnc},"errors":[${errEnc}]}`,
@@ -221,7 +217,6 @@ test('smallcaps unserialize errors w recognized extensions', t => {
   t.false('extraProp' in aggErr);
   t.is(getPrototypeOf(refErr.cause), URIError.prototype);
   t.is(getPrototypeOf(refErr.errors[0]), URIError.prototype);
-  console.log('error with extra prop', aggErr);
 
   const unkErr = uns(
     `#{"#error":"msg","name":"UnknownError","extraProp":"foo","cause":${errEnc},"errors":[${errEnc}]}`,
@@ -230,7 +225,6 @@ test('smallcaps unserialize errors w recognized extensions', t => {
   t.false('extraProp' in unkErr);
   t.is(getPrototypeOf(refErr.cause), URIError.prototype);
   t.is(getPrototypeOf(refErr.errors[0]), URIError.prototype);
-  console.log('error with extra prop', unkErr);
 });
 
 test('smallcaps mal-formed @qclass', t => {
diff --git a/packages/pass-style/NEWS.md b/packages/pass-style/NEWS.md
index 767cc5cc17..45b41050ac 100644
--- a/packages/pass-style/NEWS.md
+++ b/packages/pass-style/NEWS.md
@@ -1,6 +1,6 @@
 User-visible changes in `@endo/pass-style`:
 
-# next release
+# Next release
 
 - Now supports `AggegateError`, `error.errors`, `error.cause`.
   - A `Passable` error can now include an `error.cause` property whose
diff --git a/packages/pass-style/src/passStyleOf.js b/packages/pass-style/src/passStyleOf.js
index 32b43db37b..f77e673bd5 100644
--- a/packages/pass-style/src/passStyleOf.js
+++ b/packages/pass-style/src/passStyleOf.js
@@ -239,9 +239,11 @@ harden(assertPassable);
  *
  * TODO Deprecate and ultimately delete @agoric/base-zone's `isPassable' in
  * favor of this one.
+ * See https://github.com/endojs/endo/issues/2096
  *
  * TODO implement an isPassable that does not rely on try/catch.
- * This implementation is just a standin until then
+ * This implementation is just a standin until then.
+ * See https://github.com/endojs/endo/issues/2096
  *
  * @param {any} specimen
  * @returns {specimen is Passable}
diff --git a/packages/patterns/NEWS.md b/packages/patterns/NEWS.md
index f2a706836c..e8281da1e0 100644
--- a/packages/patterns/NEWS.md
+++ b/packages/patterns/NEWS.md
@@ -1,6 +1,6 @@
 User-visible changes in `@endo/patterns`:
 
-# next release
+# Next release
 
 - Add `M.tagged(tagPattern, payloadPattern)` for making patterns that match
   Passable Tagged objects.
diff --git a/packages/ses/NEWS.md b/packages/ses/NEWS.md
index b35dca6a43..c1bc12e6d3 100644
--- a/packages/ses/NEWS.md
+++ b/packages/ses/NEWS.md
@@ -1,6 +1,6 @@
 User-visible changes in SES:
 
-# next release
+# Next release
 
 - Now supports `Promise.any`, `AggegateError`, `error.errors`,
   and `error.cause`.