I wanted to say a special thanks for mentioning the jailbreaks but you know that's ios 11.1.2-11.2.1 has achieved a jailbreak but not released to public yet I'll give you a link suscribe to this guy he will he you up to date as emails if your up to date with the hype then people will be more aware https://youtu.be/Z2B2x-5UuIk
other people go on this site as well this guy is unatural if your into jailbreaking this guy will show you even how to jailbreak tutorial