Update changelog, fix failing crdb sql test.

CHANGELOG.md

@@ -7,6 +7,21 @@ https://github.com/coleifer/peewee/releases
 
 ## master
 
+* Refactor test suite - this was a mechanical refactor, just moving things
+  around and trying to group things more clearly. Also added new tests covering
+  some gaps.
+* Expand multi-value types to include generator expressions, so you can write
+  stuff like `.in(a for a in iterable if cond)`.
+* Ensure quotes embedded in entity names are escaped.
+* Improved specification of `FOR UPDATE` clauses.
+* Fix for negative values in `paginate()` method.
+* Fix for newer MySQL server versions in feature detection code.
+* More robust handling of unusual aliases / invalid attr names in cursor
+  wrapper.
+* Better handling of duplicated column names in cursor wrapper implementations.
+* Improve performance of ModelCursorWrapper when reconstructing model instance
+  graphs after multi-table selects.
+
 [View commits](https://github.com/coleifer/peewee/compare/4.0.2...master)
 
 ## 4.0.2

tests/model_sql.py

@@ -25,7 +25,9 @@ from peewee import ModelIndex
 
 from .base import get_in_memory_db
 from .base import requires_pglike
+from .base import skip_if
 from .base import BaseTestCase
+from .base import IS_CRDB
 from .base import ModelDatabaseTestCase
 from .base import TestModel
 from .base import __sql__
@@ -1543,6 +1545,7 @@ class TestOnConflictSQL(ModelDatabaseTestCase):
             'WHERE ("ukvp"."extra" < ?) '
             'RETURNING "ukvp"."id"'), ['k1', 1, 10, 100])
 
+    @skip_if(IS_CRDB)
     def test_on_conflict_named_constraint(self):
         query = (UKVP
                  .insert(key='k1', value=1)