Do I pay CGT based on the Trade date or the settlement date

When I recently sold some funds, the trade date was 31/3/2024 and the settle date was 6/4/2024. Which year do I account for gain -23/24 or 24/25

Hi 

Please have a look a the guidance at CG14250 - Computation: Computation: date of disposal: importance and how to determine the date of disposal

Thank you