"The Post Office has a 360-year history of public service and today we want to secure that service for the future by learning from past mistakes and moving forward for the benefit of all postmasters," Mr Railton said at the time.
The changes represent the latest phase of an overhaul outlined by chairman Nigel Railton last November, in which he said he wanted to add £250m annually to Post Office sub-postmaster remuneration.
Business and Trade Committee calls for government to be fined as Post Office victims face 'second trial' in struggle for redress.
The Post Office has unveiled plans for scores more job cuts as part of a transformation plan aimed at boosting payouts for thousands of sub-postmasters.
'At least 70' people in Post Office and Royal Mail knew of Horizon IT flaws, Fujitsu lawyer tells inquiry.