diff --git a/common/taskana-common/src/main/resources/sql/db2/taskana-schema-db2.sql b/common/taskana-common/src/main/resources/sql/db2/taskana-schema-db2.sql
index cc31072c3c..fa97f8ff4d 100644
--- a/common/taskana-common/src/main/resources/sql/db2/taskana-schema-db2.sql
+++ b/common/taskana-common/src/main/resources/sql/db2/taskana-schema-db2.sql
@@ -15,7 +15,7 @@ CREATE SEQUENCE TASKANA_SCHEMA_VERSION_ID_SEQ
 
 -- The VERSION value must be equal or higher then the value of TaskanaEngineImpl.MINIMAL_TASKANA_SCHEMA_VERSION
 INSERT INTO TASKANA_SCHEMA_VERSION (ID, VERSION, CREATED)
-VALUES (TASKANA_SCHEMA_VERSION_ID_SEQ.NEXTVAL,  '7.0.0', CURRENT_TIMESTAMP);
+VALUES (TASKANA_SCHEMA_VERSION_ID_SEQ.NEXTVAL,  '7.1.0', CURRENT_TIMESTAMP);
 
 CREATE TABLE CLASSIFICATION
 (
diff --git a/common/taskana-common/src/main/resources/sql/db2/taskana_schema_update_8.1.0_to_8.2.0_db2.sql b/common/taskana-common/src/main/resources/sql/db2/taskana_schema_update_8.1.0_to_8.2.0_db2.sql
new file mode 100644
index 0000000000..5ea520cbcf
--- /dev/null
+++ b/common/taskana-common/src/main/resources/sql/db2/taskana_schema_update_8.1.0_to_8.2.0_db2.sql
@@ -0,0 +1,19 @@
+-- this script updates the TASKANA database schema from version 8.1.0. to version 8.2.0.
+SET SCHEMA %schemaName%;
+
+INSERT INTO TASKANA_SCHEMA_VERSION (ID, VERSION, CREATED)
+VALUES (TASKANA_SCHEMA_VERSION_ID_SEQ.NEXTVAL, '7.1.0', CURRENT_TIMESTAMP);
+
+ALTER TABLE TASK
+    ADD COLUMN NUMBER_OF_COMMENTS INT DEFAULT 0;
+
+UPDATE TASK t
+SET NUMBER_OF_COMMENTS = subquery.COMMENT_COUNT
+FROM (
+  SELECT t.ID, COUNT(tc.ID) AS COMMENT_COUNT
+  FROM TASK t
+  RIGHT OUTER JOIN TASK_COMMENT tc
+  ON t.ID = tc.TASK_ID
+  GROUP BY t.ID
+) AS subquery
+WHERE t.ID = subquery.ID;
\ No newline at end of file
diff --git a/common/taskana-common/src/main/resources/sql/h2/taskana-schema-h2.sql b/common/taskana-common/src/main/resources/sql/h2/taskana-schema-h2.sql
index 53e9456fb1..14bdf59d81 100644
--- a/common/taskana-common/src/main/resources/sql/h2/taskana-schema-h2.sql
+++ b/common/taskana-common/src/main/resources/sql/h2/taskana-schema-h2.sql
@@ -22,7 +22,7 @@ CREATE SEQUENCE TASKANA_SCHEMA_VERSION_ID_SEQ
 
 -- The VERSION value must be equal or higher then the value of TaskanaEngineImpl.MINIMAL_TASKANA_SCHEMA_VERSION
 INSERT INTO TASKANA_SCHEMA_VERSION (ID, VERSION, CREATED)
-VALUES (nextval('TASKANA_SCHEMA_VERSION_ID_SEQ'), '7.0.0', CURRENT_TIMESTAMP);
+VALUES (nextval('TASKANA_SCHEMA_VERSION_ID_SEQ'), '7.1.0', CURRENT_TIMESTAMP);
 
 CREATE TABLE CLASSIFICATION
 (
diff --git a/common/taskana-common/src/main/resources/sql/h2/taskana_schema_update_8.1.0_to_8.2.0_h2.sql b/common/taskana-common/src/main/resources/sql/h2/taskana_schema_update_8.1.0_to_8.2.0_h2.sql
new file mode 100644
index 0000000000..e7ccef1180
--- /dev/null
+++ b/common/taskana-common/src/main/resources/sql/h2/taskana_schema_update_8.1.0_to_8.2.0_h2.sql
@@ -0,0 +1,20 @@
+-- this script updates the TASKANA database schema from version 8.1.0 to version 8.2.0.
+SET SCHEMA %schemaName%;
+
+INSERT INTO TASKANA_SCHEMA_VERSION (ID, VERSION, CREATED)
+VALUES (nextval('TASKANA_SCHEMA_VERSION_ID_SEQ'), '7.1.0', CURRENT_TIMESTAMP);
+
+ALTER TABLE TASK
+    ADD COLUMN NUMBER_OF_COMMENTS INT DEFAULT 0;
+
+UPDATE TASK t
+SET NUMBER_OF_COMMENTS = (
+	SELECT COUNT(tc.ID)
+	FROM TASK_COMMENT tc
+	WHERE tc.TASK_ID = t.ID
+)
+WHERE EXISTS (
+	SELECT 1
+	FROM TASK_COMMENT tc
+	WHERE tc.TASK_ID = t.ID
+);
\ No newline at end of file
diff --git a/common/taskana-common/src/main/resources/sql/oracle/taskana-schema-oracle.sql b/common/taskana-common/src/main/resources/sql/oracle/taskana-schema-oracle.sql
index 33242c17d3..e09b5cfec9 100644
--- a/common/taskana-common/src/main/resources/sql/oracle/taskana-schema-oracle.sql
+++ b/common/taskana-common/src/main/resources/sql/oracle/taskana-schema-oracle.sql
@@ -14,7 +14,7 @@ CREATE SEQUENCE TASKANA_SCHEMA_VERSION_ID_SEQ
 
 -- The VERSION value must be equal or higher then the value of TaskanaEngineImpl.MINIMAL_TASKANA_SCHEMA_VERSION
 INSERT INTO TASKANA_SCHEMA_VERSION (ID, VERSION, CREATED)
-VALUES (TASKANA_SCHEMA_VERSION_ID_SEQ.NEXTVAL, '7.0.0', CURRENT_TIMESTAMP);
+VALUES (TASKANA_SCHEMA_VERSION_ID_SEQ.NEXTVAL, '7.1.0', CURRENT_TIMESTAMP);
 
 CREATE TABLE CLASSIFICATION
 (
diff --git a/common/taskana-common/src/main/resources/sql/oracle/taskana_schema_update_8.1.0_to_8.2.0_oracle.sql b/common/taskana-common/src/main/resources/sql/oracle/taskana_schema_update_8.1.0_to_8.2.0_oracle.sql
new file mode 100644
index 0000000000..0f80e67ed5
--- /dev/null
+++ b/common/taskana-common/src/main/resources/sql/oracle/taskana_schema_update_8.1.0_to_8.2.0_oracle.sql
@@ -0,0 +1,19 @@
+-- this script updates the TASKANA database schema from version 8.1.0 to version 8.2.0.
+ALTER SESSION SET CURRENT_SCHEMA = %schemaName%;
+
+INSERT INTO TASKANA_SCHEMA_VERSION (ID, VERSION, CREATED)
+VALUES (nextval('TASKANA_SCHEMA_VERSION_ID_SEQ'), '7.1.0', CURRENT_TIMESTAMP);
+
+ALTER TABLE TASK
+    ADD COLUMN NUMBER_OF_COMMENTS INT DEFAULT 0;
+
+UPDATE TASK t
+SET NUMBER_OF_COMMENTS = subquery.COMMENT_COUNT
+FROM (
+  SELECT t.ID, COUNT(tc.ID) AS COMMENT_COUNT
+  FROM TASK t
+  RIGHT OUTER JOIN TASK_COMMENT tc
+  ON t.ID = tc.TASK_ID
+  GROUP BY t.ID
+) AS subquery
+WHERE t.ID = subquery.ID;
\ No newline at end of file
diff --git a/common/taskana-common/src/main/resources/sql/postgres/taskana-schema-postgres.sql b/common/taskana-common/src/main/resources/sql/postgres/taskana-schema-postgres.sql
index 291ae72651..76151f0e47 100644
--- a/common/taskana-common/src/main/resources/sql/postgres/taskana-schema-postgres.sql
+++ b/common/taskana-common/src/main/resources/sql/postgres/taskana-schema-postgres.sql
@@ -18,7 +18,7 @@ CREATE SEQUENCE TASKANA_SCHEMA_VERSION_ID_SEQ
 
 -- The VERSION value must be equal or higher then the value of TaskanaEngineImpl.MINIMAL_TASKANA_SCHEMA_VERSION
 INSERT INTO TASKANA_SCHEMA_VERSION (ID, VERSION, CREATED)
-VALUES (nextval('TASKANA_SCHEMA_VERSION_ID_SEQ'), '7.0.0', CURRENT_TIMESTAMP);
+VALUES (nextval('TASKANA_SCHEMA_VERSION_ID_SEQ'), '7.1.0', CURRENT_TIMESTAMP);
 
 CREATE TABLE CLASSIFICATION
 (
diff --git a/common/taskana-common/src/main/resources/sql/postgres/taskana_schema_update_8.1.0_to_8.2.0_postgres.sql b/common/taskana-common/src/main/resources/sql/postgres/taskana_schema_update_8.1.0_to_8.2.0_postgres.sql
new file mode 100644
index 0000000000..bfdb6eb9b8
--- /dev/null
+++ b/common/taskana-common/src/main/resources/sql/postgres/taskana_schema_update_8.1.0_to_8.2.0_postgres.sql
@@ -0,0 +1,20 @@
+-- this script updates the TASKANA database schema from version 8.1.0 to version 8.2.0.
+
+SET search_path = %schemaName%;
+
+INSERT INTO TASKANA_SCHEMA_VERSION (ID, VERSION, CREATED)
+VALUES (nextval('TASKANA_SCHEMA_VERSION_ID_SEQ'), '7.1.0', CURRENT_TIMESTAMP);
+
+ALTER TABLE TASK
+    ADD COLUMN NUMBER_OF_COMMENTS INT DEFAULT 0;
+
+UPDATE TASK t
+SET NUMBER_OF_COMMENTS = subquery.COMMENT_COUNT
+FROM (
+  SELECT t.ID, COUNT(tc.ID) AS COMMENT_COUNT
+  FROM TASK t
+  RIGHT OUTER JOIN TASK_COMMENT tc
+  ON t.ID = tc.TASK_ID
+  GROUP BY t.ID
+) AS subquery
+WHERE t.ID = subquery.ID;
\ No newline at end of file
diff --git a/lib/taskana-core/src/main/java/pro/taskana/common/api/TaskanaEngine.java b/lib/taskana-core/src/main/java/pro/taskana/common/api/TaskanaEngine.java
index 62c19c1561..cd680edb0b 100644
--- a/lib/taskana-core/src/main/java/pro/taskana/common/api/TaskanaEngine.java
+++ b/lib/taskana-core/src/main/java/pro/taskana/common/api/TaskanaEngine.java
@@ -17,7 +17,7 @@
 
 /** The TaskanaEngine represents an overall set of all needed services. */
 public interface TaskanaEngine {
-  String MINIMAL_TASKANA_SCHEMA_VERSION = "7.0.0";
+  String MINIMAL_TASKANA_SCHEMA_VERSION = "7.1.0";
 
   /**
    * Returns a {@linkplain TaskService} initialized with the current TaskanaEngine. {@linkplain