Use 'step forward' to describe a positive change, similar to taking a literal step towards a goal. The new policy represents a step forward in environmental protection.
Pro Tip 2/3
Abstract Progress
'Step forward' is often metaphorical and used to discuss improvements in non-physical contexts, like negotiations. Reaching an agreement was a step forward for the peace talks.
Pro Tip 3/3
Collective Effort
Can indicate progress resulting from group or team effort, not just individual achievements. Our team's research has taken a step forward with this discovery.