Update changelog.

Author: guzman-raphael

CHANGELOG.md

@@ -5,6 +5,7 @@
 * Bugfix - `schema.list_tables()` is not topologically sorted (#838) PR #893
 * Bugfix - Diagram part tables do not show proper class name (#882) PR #893
 * Bugfix - Error in complex restrictions (#892) PR #893
+* Bugfix - WHERE and GROUP BY clases are dropped on joins with aggregation (#898, #899) PR #893
 
 ### 0.13.0 -- Mar 24, 2021
 * Re-implement query transpilation into SQL, fixing issues (#386, #449, #450, #484, #558). PR #754

docs-parts/intro/Releases_lang1.rst

@@ -4,6 +4,7 @@
 * Bugfix - `schema.list_tables()` is not topologically sorted (#838) PR #893
 * Bugfix - Diagram part tables do not show proper class name (#882) PR #893
 * Bugfix - Error in complex restrictions (#892) PR #893
+* Bugfix - WHERE and GROUP BY clases are dropped on joins with aggregation (#898, #899) PR #893
 
 0.13.0 -- Mar 24, 2021
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