Just for context - unlike universal free childcare, Labour did previously commit to abolishing university tuition fees and also to spend £28b per year on green investment from day 1. Both policy positions have been dropped although the green investment is a more subtle change - with the investment ramping up over the early years.
So it would be fair to describe both as u-turns. However I'm happy with both as in my view both previous positions weren't well thought through. On university funding you cannot simply abolish fees without massive (frankly unaffordable) cost, as you'd have to deal with all those students with accumulated debts as well as those going in the future. Also the current fee level doesn't cover the cost of delivering the provision (like 'free' childcare) so there needs to be a more holistic and careful consideration of how we fund our universities, rather than a knee-jerk, headline grabbing 'abolish tuition fees' soundbite.
The green investment change is simply pragmatically sensible as you simply cannot announce a programme and open an investment tap - some of the projects worthy of investment may take years in planning.