---
title: "version(min:max:)"
framework: Network
role: symbol
role_heading: Instance Method
platforms: [iOS 27.0+, iPadOS 27.0+, Mac Catalyst 27.0+, macOS 27.0+, tvOS 27.0+, visionOS 27.0+, watchOS 27.0+]
path: "network/dtls/version(min:max:)"
---

# version(min:max:)

## Declaration

```swift
func version(min: tls_protocol_version_t? = nil, max: tls_protocol_version_t? = nil) -> DTLS
```