[Yandex Cloud documentation](../../index.md) > [Yandex Data Transfer](../index.md) > [Release notes](index.md) > 2023 > December 2023

# Data Transfer release notes: December 2023

## New features {#new-features}

1. Added a [string filter](../concepts/data-transformation.md#append-only-sources) for APPEND-ONLY data sources.
1. Refined the [recommendations for migrating resources to a new availability zone](../operations/endpoint/migration-to-an-availability-zone.md).
1. Added support of a predefined changefeed for data replication to a [YDB target](../operations/endpoint/target/yandex-database.md).
1. Added the setting for parallel copying and replication from a [YDB source](../operations/transfer.md#create).
1. Added support for adding views in [MySQL® cluster migration scenarios](../tutorials/managed-mysql-to-mysql.md).

## Fixed issues {#problems-solved}

1. Fixed the transferring of enumeration type data in [PostgreSQL cluster migration scenarios](../tutorials/managed-postgresql.md).
1. Improved the accuracy of processing numbers in JSON arrays.
1. Revised the endpoints API for improved consistency.