diff --git a/include/mbedtls/compat-2.x.h b/include/mbedtls/compat-2.x.h
new file mode 100644
index 0000000..fe7aa16
--- /dev/null
+++ b/include/mbedtls/compat-2.x.h
@@ -0,0 +1,69 @@
+/**
+ * \file compat-2.x.h
+ *
+ * \brief Compatibility definitions
+ *
+ * \deprecated Use the new names directly instead
+ */
+/*
+ *  Copyright The Mbed TLS Contributors
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#if ! defined(MBEDTLS_DEPRECATED_REMOVED)
+
+#if defined(MBEDTLS_DEPRECATED_WARNING)
+#warning "Including compat-2.x.h is deprecated"
+#endif
+
+#ifndef MBEDTLS_COMPAT2X_H
+#define MBEDTLS_COMPAT2X_H
+
+/*
+ * Macros for renamed functions
+ */
+#define mbedtls_ctr_drbg_update_ret   mbedtls_ctr_drbg_update
+#define mbedtls_hmac_drbg_update_ret  mbedtls_hmac_drbg_update
+#define mbedtls_md2_starts_ret        mbedtls_md2_starts
+#define mbedtls_md2_update_ret        mbedtls_md2_update
+#define mbedtls_md2_finish_ret        mbedtls_md2_finish
+#define mbedtls_md2_ret               mbedtls_md2
+#define mbedtls_md4_starts_ret        mbedtls_md4_starts
+#define mbedtls_md4_update_ret        mbedtls_md4_update
+#define mbedtls_md4_finish_ret        mbedtls_md4_finish
+#define mbedtls_md4_ret               mbedtls_md4
+#define mbedtls_md5_starts_ret        mbedtls_md5_starts
+#define mbedtls_md5_update_ret        mbedtls_md5_update
+#define mbedtls_md5_finish_ret        mbedtls_md5_finish
+#define mbedtls_md5_ret               mbedtls_md5
+#define mbedtls_ripemd160_starts_ret  mbedtls_ripemd160_starts
+#define mbedtls_ripemd160_update_ret  mbedtls_ripemd160_update
+#define mbedtls_ripemd160_finish_ret  mbedtls_ripemd160_finish
+#define mbedtls_ripemd160_ret         mbedtls_ripemd160
+#define mbedtls_sha1_starts_ret       mbedtls_sha1_starts
+#define mbedtls_sha1_update_ret       mbedtls_sha1_update
+#define mbedtls_sha1_finish_ret       mbedtls_sha1_finish
+#define mbedtls_sha1_ret              mbedtls_sha1
+#define mbedtls_sha256_starts_ret     mbedtls_sha256_starts
+#define mbedtls_sha256_update_ret     mbedtls_sha256_update
+#define mbedtls_sha256_finish_ret     mbedtls_sha256_finish
+#define mbedtls_sha256_ret            mbedtls_sha256
+#define mbedtls_sha512_starts_ret     mbedtls_sha512_starts
+#define mbedtls_sha512_update_ret     mbedtls_sha512_update
+#define mbedtls_sha512_finish_ret     mbedtls_sha512_finish
+#define mbedtls_sha512_ret            mbedtls_sha512
+
+#endif /* MBEDTLS_COMPAT2X_H */
+#endif /* MBEDTLS_DEPRECATED_REMOVED */