Interesting to note that if I make a Zone 1-3 PAYG journey, the off-peak fare doesn’t go up, but if I want to go from 3-5, the fare goes up 20p to £1.70 as there’s now a complex fare uprating system for journeys outside Zone 1 instead of the flat £1.50 fare for all journeys from Z2-6.
Yes, TfL are abandoning the scheme where pairs of zones were treated the same. So 1-3 and 1-4 were the same off-peak, as were 1-5 and 1-6. Increases of 0p, 10p, 10p and 20p have separated them all out now. Similar treatment applies to the peak outside zone 1.
Obviously it wouldn’t be palatable to split up all the old £1.50 off-peak fares, but I expect the longer ones to be split further next year.