You can learn more about using v2Ray in the IVPN iOS app here: https://www.ivpn.net/knowledgebase/ios/v2ray/

Changelog:

[NEW] Obfuscation with V2Ray for WireGuard connections
[IMPROVED] Update WireGuard to the latest version
[IMPROVED] Update packages/dependencies to the latest version
[FIXED] Repeatedly connecting and disconnecting when 
Network Protection is enabled

https://github.com/ivpn/ios-app/blob/develop/CHANGELOG.md