There are ways to update your Cydia version manually without have to re-jailbreak your iPhone, iPod Touch or iPad. It could be trouble if you need to re-jailbreak your iDevices each time Cydia has launched a new updated version. Therefore, it is useful to learn up this skill and steps by steps to update your Cydia version. With the technology we have today, updating the software is very easy nowadays. The easiest and fastest way to update Cydia version is to launch your Cydia and see if it offers any update, if yes just tap on it and it will be updated in minutes.
Automatically update Cydia version
If it is not, follow these steps to manually update it. (These steps are similar to steps to manually install Cydia to iPhone, iPod Touch, and iPad)
Step 1: Download the latest version Cydia file from Cydia official website. It is a DEB file. Save it to your local computer.
Step 2: Launch Cyberduck (For Mac user) or WinSCP (For Window user).
Step 3: Launch Cydia in your iDevice and install OpenSSH and then iFile if you do not have it in your device.
Step 4: Now connect your device to your computer and SSH the latest Cydia version (DEB File) to your device (path: /root/private/var/root/) through the program you launch in step 2.
Step 5: Launch iFile and look for Cydia file. Tap on it and then tap on Installer to install the latest Cydia version on your iPhone, iPod Touch, or iPad.