Update history.
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For a full list of releases, see <a href="https://github.com/julianhyde/linq4j/releases">github</a>.
+## HEAD
+
+* Move optimizer visitor from optiq to linq4j; add
+ `ExpressionType.modifiesLvalue` to avoid invalid inlining.
+* Fix <a href="https://github.com/julianhyde/linq4j/issues/17">#17</a>,
+ "Assign constant expressions to 'static final' members";
+ add `@Deterministic` annotation to help deduce which expressions are
+ constant.
+* Multi-pass optimization: some of the variables might be avoided and
+ inlined after the first pass.
+* Various other peephole optimizations: `Boolean.valueOf(const)`,
+ 'not' expressions (`!const`, `!!a`, `!(a==b)`, `!(a!=b)`, `!(a>b)`,
+ etc.),
+ '?' expressions coming from `CASE` (`a ? booleanConstant : b` and `a
+ ? b : booleanConstant`).
+* Implement left, right and full outer join.
+* Clean build on cygwin/Windows.
+
## <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/8">#8</a>,
