diff --git a/library/sha256.c b/library/sha256.c
index a94f325..be373d9 100644
--- a/library/sha256.c
+++ b/library/sha256.c
@@ -138,6 +138,14 @@
     return( 0 );
 }
 
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
+void mbedtls_sha256_starts( mbedtls_sha256_context *ctx,
+                            int is224 )
+{
+    mbedtls_sha256_starts_ret( ctx, is224 );
+}
+#endif
+
 #if !defined(MBEDTLS_SHA256_PROCESS_ALT)
 static const uint32_t K[] =
 {
@@ -273,6 +281,13 @@
     return( 0 );
 }
 
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
+void mbedtls_sha256_process( mbedtls_sha256_context *ctx,
+                             const unsigned char data[64] )
+{
+    mbedtls_internal_sha256_process( ctx, data );
+}
+#endif
 #endif /* !MBEDTLS_SHA256_PROCESS_ALT */
 
 /*
@@ -328,6 +343,15 @@
     return( 0 );
 }
 
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
+void mbedtls_sha256_update( mbedtls_sha256_context *ctx,
+                            const unsigned char *input,
+                            size_t ilen )
+{
+    mbedtls_sha256_update_ret( ctx, input, ilen );
+}
+#endif
+
 /*
  * SHA-256 final digest
  */
@@ -394,6 +418,14 @@
     return( 0 );
 }
 
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
+void mbedtls_sha256_finish( mbedtls_sha256_context *ctx,
+                            unsigned char output[32] )
+{
+    mbedtls_sha256_finish_ret( ctx, output );
+}
+#endif
+
 #endif /* !MBEDTLS_SHA256_ALT */
 
 /*
@@ -428,6 +460,16 @@
     return( ret );
 }
 
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
+void mbedtls_sha256( const unsigned char *input,
+                     size_t ilen,
+                     unsigned char output[32],
+                     int is224 )
+{
+    mbedtls_sha256_ret( input, ilen, output, is224 );
+}
+#endif
+
 #if defined(MBEDTLS_SELF_TEST)
 /*
  * FIPS-180-2 test vectors