diff --git a/RELEASE_NOTES.rst b/RELEASE_NOTES.rst
index 206f845a0a921..3882c8eac7db1 100644
--- a/RELEASE_NOTES.rst
+++ b/RELEASE_NOTES.rst
@@ -53,7 +53,7 @@ Bug Fixes
 - Fix ``AttributeError`` when reading logs for previous task attempts with ``TaskInstanceHistory`` (#54114)
 - Skip database queries for spans and metrics when tracing/metrics are disabled (#54404)
 - UI: Fix Graph view edge rendering issues for nested task groups with excessive bends and misalignment (#54412)
-- Allow database downgrade from Airflow 3.x to 2.11 (#54399)
+- Allow database downgrade from Airflow 3.x to 2.11 (#54399, #54508)
 - Reduce excessive warning logs when multiple deferred tasks are queued in triggerer (#54441)
 - Fix log retrieval failures for in-progress tasks by properly configuring JWT authentication (#54444)
 - Fix DAG import errors for invalid access control roles to persist consistently in UI (#54432)
diff --git a/airflow-core/docs/img/airflow_erd.sha256 b/airflow-core/docs/img/airflow_erd.sha256
index 076b590dedd23..9ede5601f5863 100644
--- a/airflow-core/docs/img/airflow_erd.sha256
+++ b/airflow-core/docs/img/airflow_erd.sha256
@@ -1 +1 @@
-47bc0fb61cdb68be06d02c7f7d88bf39c0d454bd23e9ad924e218999c40fc121
\ No newline at end of file
+9650b3ecb443b35b5626dede72e6235683f616f16c8c8f5ab113fa08d1a27ff7
\ No newline at end of file
diff --git a/airflow-core/src/airflow/migrations/versions/0060_3_0_0_add_try_id_to_ti_and_tih.py b/airflow-core/src/airflow/migrations/versions/0060_3_0_0_add_try_id_to_ti_and_tih.py
index 9263748f5fda2..82a80cc8903de 100644
--- a/airflow-core/src/airflow/migrations/versions/0060_3_0_0_add_try_id_to_ti_and_tih.py
+++ b/airflow-core/src/airflow/migrations/versions/0060_3_0_0_add_try_id_to_ti_and_tih.py
@@ -143,12 +143,10 @@ def downgrade():
     elif dialect_name == "mysql":
         op.execute(
             """
-            UPDATE task_instance_history tih
-            JOIN (
-                SELECT id, ROW_NUMBER() OVER (ORDER BY id) AS row_num
-                FROM task_instance_history
-            ) AS temp ON tih.id = temp.id
-            SET tih.id = temp.row_num;
+            SET @row_number = 0;
+            UPDATE task_instance_history
+            SET id = (@row_number := @row_number + 1)
+            ORDER BY try_id;
             """
         )
     else:
diff --git a/airflow-core/src/airflow/migrations/versions/0068_3_0_0_ti_table_id_unique_per_try.py b/airflow-core/src/airflow/migrations/versions/0068_3_0_0_ti_table_id_unique_per_try.py
index 80a3e252745eb..da67f0e4f9ebf 100644
--- a/airflow-core/src/airflow/migrations/versions/0068_3_0_0_ti_table_id_unique_per_try.py
+++ b/airflow-core/src/airflow/migrations/versions/0068_3_0_0_ti_table_id_unique_per_try.py
@@ -96,7 +96,7 @@ def downgrade():
     dialect_name = conn.dialect.name
     with op.batch_alter_table("task_reschedule", schema=None) as batch_op:
         batch_op.add_column(
-            sa.Column("try_number", sa.INTEGER(), autoincrement=False, nullable=False, default=1)
+            sa.Column("try_number", sa.INTEGER(), autoincrement=False, nullable=False, server_default="1")
         )
 
     with op.batch_alter_table("task_instance_note", schema=None) as batch_op:
@@ -117,5 +117,5 @@ def downgrade():
     # (and on non sqlite batching isn't "a thing", it issue alter tables fine)
     with op.batch_alter_table("task_instance_history", schema=None) as batch_op:
         batch_op.add_column(
-            sa.Column("task_instance_id", UUIDType(binary=False), autoincrement=False, nullable=False)
+            sa.Column("task_instance_id", UUIDType(binary=False), autoincrement=False, nullable=True)
         )
diff --git a/reproducible_build.yaml b/reproducible_build.yaml
index c6ebe5a005a88..7cb8fb535d1b9 100644
--- a/reproducible_build.yaml
+++ b/reproducible_build.yaml
@@ -1,2 +1,2 @@
-release-notes-hash: 5df5110dd4c2d2b9b1d1a65256c11961
-source-date-epoch: 1755097670
+release-notes-hash: 7a4e51bb2b808cfa090444eb05ebc2bf
+source-date-epoch: 1755194406