Some schemes funded through the Operation have transitioned through various iterations of Welsh Government regeneration programmes and necessarily so, given their complexity.
Mae rhai cynlluniau a ariennir drwy'r Rhaglen wedi cael eu newid yn ystod sawl cylch o raglenni adfywio Llywodraeth Cymru ac o reidrwydd felly, o ystyried eu cymhlethdod.