---
title: "sec_protocol_metadata_get_negotiated_tls_protocol_version(_:)"
framework: security
role: symbol
role_heading: Function
path: "security/sec_protocol_metadata_get_negotiated_tls_protocol_version(_:)"
---

# sec_protocol_metadata_get_negotiated_tls_protocol_version(_:)

## Declaration

```swift
func sec_protocol_metadata_get_negotiated_tls_protocol_version(_ metadata: sec_protocol_metadata_t) -> tls_protocol_version_t
```

## Parameters

- `metadata`: A sec_protocol_metadata_t instance.

## Return Value

Return Value A tls_protocol_version_t value.

## Discussion

Discussion Get the negotiated TLS version.