Granted! I took your post to just mean that Tiagra is still available with a triple - but it's only the new series that officially accomodates a 34T sprocket isn't it?
Officially, when using the Tiagra triple then you're limited to 32T on the back - giving 50/39/30 x 11-32T
Tiagra compact takes up to 34T - so can do 50/34T x 11-34T.
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