Pods and its usage in xcode and you can find in its website: https://cocoapods.org

Pods are a way of managing dependencies for Swift and Objective-C projects using CocoaPods, which is a dependency manager for Cocoa projects¹. Pods allow you to specify the libraries or frameworks that your project depends on, and CocoaPods will install them for you and configure your Xcode project accordingly¹.

To use pods in Xcode, you need to install CocoaPods first, which can be done with the command `sudo gem install cocoapods`¹. Then, you need to create a text file named **Podfile** in your Xcode project directory, where you list the pods that you want to use, along with the platform and target information¹. For example:

“`ruby
platform :ios, ‘8.0’
use_frameworks!

target ‘MyApp’ do
pod ‘AFNetworking’, ‘~> 2.6’
pod ‘ORStackView’, ‘~> 3.0’
pod ‘SwiftyJSON’, ‘~> 2.3’
end
“`

You can also use the command `pod init` to create a Podfile with smart defaults¹. After creating the Podfile, you need to run the command `pod install` in your project directory, which will download and install the pods and create a **workspace** file that you should use instead of the original project file¹.

To update the pods to the latest versions, you can run the command `pod update` in your project directory². To migrate your project to Swift 3.0, you can use the automatic conversion option in Xcode 8 or later². To remove a pod from your project, you need to delete the pod from the Podfile, run `pod install` again, and remove any references to the pod in your code³.

You can find more information about pods and CocoaPods on their website: https://cocoapods.org/¹

(1) CocoaPods.org. https://cocoapods.org/.
(2) ios – XCODE : Pod Update – Stack Overflow. https://stackoverflow.com/questions/43627154/xcode-pod-update.
(3) ios – Removing Pod from project – xcode – Stack Overflow. https://stackoverflow.com/questions/30116595/removing-pod-from-project-xcode.