Update CHANGELOG and version for 0.28.8 (#2041)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 81c7d90..6c2cc2d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.28.8
+* Use analyzer line number library, fixing crash on empty file (#2034, #1938).
+* Fix crash on resolving comment references inside extension methods (#2040, #2033).
+
 ## 0.28.7
 * Remove obsolete references to Element.type and ElementHandle (#2028, #2031).
 * Fix problem with return values for typedefs with analyzer 0.38.5 (#2036).
diff --git a/dartdoc_options.yaml b/dartdoc_options.yaml
index a174fde..0078b95 100644
--- a/dartdoc_options.yaml
+++ b/dartdoc_options.yaml
@@ -1,4 +1,4 @@
 dartdoc:
   linkToSource:
     root: '.'
-    uriTemplate: 'https://github.com/dart-lang/dartdoc/blob/v0.28.7/%f%#L%l%'
+    uriTemplate: 'https://github.com/dart-lang/dartdoc/blob/v0.28.8/%f%#L%l%'
diff --git a/lib/src/version.dart b/lib/src/version.dart
index 8521c70..c9b53e6 100644
--- a/lib/src/version.dart
+++ b/lib/src/version.dart
@@ -1,2 +1,2 @@
 // Generated code. Do not modify.
-const packageVersion = '0.28.7';
+const packageVersion = '0.28.8';
diff --git a/pubspec.yaml b/pubspec.yaml
index ff565f8..7220848 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: dartdoc
 # Run `grind build` after updating.
-version: 0.28.7
+version: 0.28.8
 author: Dart Team <misc@dartlang.org>
 description: A documentation generator for Dart.
 homepage: https://github.com/dart-lang/dartdoc