I always kind've expected this to be retconned out to be honest. The limit always struck me as something that was made up decades ago, "just cos", maybe to just add to the lore of the show, and because they never expected it to run for so long (and it almost didn't).
This is hardly surprising, you run a series long enough you're gona have to retcon stuff in order for things to make sense, look at any long running comic series, ie Ironman, thay've gone through about 3 iterations of his origin story of him being captured and building his suit under completely diffeent military forces in 3 seperate wars, because so much time has passed that the timeline no longer fits.
And really, how long ago was the last mention of a Time Lords regen limit? 2 decades nearly? More? Whenever it was it was so long ago that it doesn't really matter any more, or impact the current generation of the show.
This is hardly surprising, you run a series long enough you're gona have to retcon stuff in order for things to make sense, look at any long running comic series, ie Ironman, thay've gone through about 3 iterations of his origin story of him being captured and building his suit under completely diffeent military forces in 3 seperate wars, because so much time has passed that the timeline no longer fits.
And really, how long ago was the last mention of a Time Lords regen limit? 2 decades nearly? More? Whenever it was it was so long ago that it doesn't really matter any more, or impact the current generation of the show.