Errors: does GRRM update/edit releases?

[Dr. Pepper]

I also just read from possible reliable sources that GRRM in fact was confirmed to have updated one of the prophecy texts, I think this one:

It'd be great if someone can confirm this though? Does anyone have the older copies where this prophecy is worded differently? If so I'd be confident in assuming that GRRM does indeed retroactively amend "errors" or just his changes of mind in later releases. Which is really cool, IMO and beneficial for the overall plot consistency if indeed errors do creep in at points.

Out of curiosity, where have you read about this amended change?

In the US, as far as I know, there haven't been any new editions of the books released and won't be until later this year. I think the European publishers have released a paperback edition already, but I haven't seen any comments about it having been amended.