Update release notes for 4.0
diff --git a/site/src/site/releasenotes/groovy-4.0.adoc b/site/src/site/releasenotes/groovy-4.0.adoc
index 29402b4..5dc1222 100644
--- a/site/src/site/releasenotes/groovy-4.0.adoc
+++ b/site/src/site/releasenotes/groovy-4.0.adoc
@@ -501,29 +501,30 @@
=== Other areas under investigation
-==== .Net-inspired changes (under investigation)
+==== GINQ, a.k.a. Groovy-Integrated Query (incubating)
-Can we provide a Groovy equivalent to .Net's Language Integrated Query (LINQ)?
-It would support code like below:
+GINQ supports querying collections in a SQL-like style.
[source,groovy]
--------------------------------------
-from p of persons
-leftjoin c of cities
-on p.city.name == c.name
-select p.name, c.name
+from p in persons
+leftjoin c in cities on p.city.name == c.name
+where c.name == 'Shanghai'
+select p.name, c.name as cityName
-from p of persons
+from p in persons
groupby p.gender
having p.gender == 'Male'
select p.gender, max(p.age)
-from p of persons
-orderby p.age desc
-thenby p.name asc
+from p in persons
+orderby p.age in desc, p.name
select p.name
--------------------------------------
+More examples could be found at
+link:https://github.com/apache/groovy/blob/master/subprojects/groovy-ginq/src/spec/test/org/apache/groovy/ginq/GinqTest.groovy[GINQ examples]
+
==== Python-inspired changes (under investigation)
Can we support additional destructuring options
