Olive Tree Problem

Last summer we bought a standard olive tree, it’s been outside all winter although I did bring it in when it was really cold. But it’s starting to look ill with dark patches on the leaves, many of which are turning yellow. I don’t want to lose it so would really appreciate help, please

 

I see you have done a bit of pruning.
Is it showing signs of new growth buds?

 

Perfectly normal

It's the time of year evergreen deciduous trees shed their leaves.

Boris the Olive has been out all winter and is doing the same thing

 

Pete There are a few small shoots, but so pleased that this is normal, thank you