Update history.
diff --git a/HISTORY.md b/HISTORY.md
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+++ b/HISTORY.md
@@ -2,18 +2,39 @@
For a full list of releases, see <a href="https://github.com/julianhyde/linq4j/releases">github</a>.
-## <a href="https://github.com/julianhyde/linq4j/releases/tag/linq4j-0.1.13">0.1.13</a> (2014-01-20)
+## <a href="https://github.com/julianhyde/linq4j/releases/tag/linq4j-0.2">0.2</a> / 2014-04-11
+
+* Fix <a href="https://github.com/julianhyde/linq4j/issues/15">#15</a>,
+ "`Expressions.ifThenElse` does not work".
+* Use `HashMap` for searching of declarations to reuse; consider both
+ `optimizing` and `optimize` flags when reusing.
+* Implement `equals` and `hashCode` for expressions. Hash codes for
+ complex expressions are cached into a field of the expression.
+* Add example, `com.example.Linq4jExample`.
+* Fix optimizing away parameter declarations in assignment target.
+* Support Windows path names in checkstyle-suppresions.
+* Support `Statement.toString` via `ExpressionWriter`.
+* Use `AtomicInteger` for naming of `ParameterExpression`s to avoid
+ conflicts in multithreaded usage
+* Cleanup: use `Functions.adapt` rather than `new AbstractList`
+* Add `NOTICE` and `LICENSE` files in generated JAR file.
+* Optimize `select()` if selector is identity.
+* Enable checkstyle.
+
+## <a href="https://github.com/julianhyde/linq4j/releases/tag/linq4j-0.1.13">0.1.13</a> / 2014-01-20
* Remove spurious "null" generated when converting expression to string.
* Allow a field declaration to not have an initializer.
-* Add Primitive.defaultValue.
-* Enable oraclejdk8 in Travis CI.
+* Add `Primitive.defaultValue`.
+* Enable `oraclejdk8` in <a href="https://travis-ci.org/julianhyde/linq4j">Travis CI</a>.
-## <a href="https://github.com/julianhyde/linq4j/releases/tag/linq4j-0.1.12">0.1.12</a> (2013-12-07)
+## <a href="https://github.com/julianhyde/linq4j/releases/tag/linq4j-0.1.12">0.1.12</a> / 2013-12-07
* Add release notes.
-* Fix implementation of Enumerable.asEnumerable in DefaultQueryable (inherited by most classes that implement Queryable).
+* Fix implementation of `Enumerable.asEnumerable` in
+ `DefaultQueryable` (inherited by most classes that implement
+ `Queryable`).
-## <a href="https://github.com/julianhyde/linq4j/releases/tag/linq4j-0.1.11">0.1.11</a> (2013-11-06)
+## <a href="https://github.com/julianhyde/linq4j/releases/tag/linq4j-0.1.11">0.1.11</a> / 2013-11-06
* Lots of good stuff that this margin is too small to contain.
