Updating a jailbroken iPhone?

I recently jailbroke my iPhone 4s on ios 7.1.2. I have new apps, tweaks, themes etc. That i've now installed. I was just wondered, if I need to update my phone again to new software, will the update wipe the jailbreak? Or wipe the tweaks i've installed etc?

Any iOS update will remove your jailbreak. Never update the jb iPhone directly. You need to restore in iTunes and then update the iOS.

As a long time member of the jailbreak community I try to stay on the firmware I have as long as I can. Always wait until a jailbreak for the new OS is released before updating.

When backing up you can always look into jailbreak tools that do it for you. You can find several by doing a quick google search.

What I do is manually back up everything I feel is essential through SSH using iFunbox. I usually keep Photos, Themes, SMS.db, AppStore App's documents, and other essentials. (You could also do an iTunes back up but I usually don't) Then I restore using iTunes. RESTORE. Not update. RESTORE. Then I immediately rejailbreak. Once rejailbroken, I install all the tweaks I liked.

Doing this is a bit time consuming but is best for avoiding compatibility issues and also cleans up unused tweaks and is kind of a fresh start. Just remember all the must have tweaks.

Hope I helped