Q: iPhoto needs to be upgraded however is not available in the UK

Mac OS X 10.10.3 and newer include Photos, which is intended as a replacement for iPhoto and can import its library. If you'd like to go on using iPhoto in addition to or instead of switching to Photos, click here and try following the instructions; you'll only be able to do so if you previously got iPhoto from or associated it with the Mac App Store.

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To use iPhoto under Ell Captain you need version 9.6.1 - if you are not up to date see Can't Update iPhoto because it is not available in the App Store

the first time you open Photos is will migrate the last used iPhoto library

But be aware Photos is not an iPhoto upgrade, it is a totally new program with a learning curve and requires new work flows in many cases

If your iPhoto library does not migrate you can migrate it by dragging the iPhoto library to the Photos icon in the Dock or opening it using the File Open command in Photos

and these will help you with the migration

Details of how Photos handles the migration from iPhoto

Photos 1.5 vs iPhoto 9.6.1:  Features and Capabilities

Moments in Photos are the New Events

LN

That is strictly a personal decision

The experienced Photos users here think it is the best solution which is why they are here - some people do not and so they are not here

Unless you are a professional or a very advanced amateur willing to spend hundreds to thousands of dollars for a photo manager then Photos is the best solution - only you can make that decision

LN