DB, Well not exactly. I'm saying that the IMC rules didn't change when JARs were introduced, and as far as I know they haven't changed since, but I could have missed something. I certainly haven't seen an AIC about any changes.
On the second point, yes I think it was recovery from unusual attitudes that is in the IMC renewal but not in the IR renewal. The IR renewal format did change with the comming of JARs.
Recovery from unusual attitudes and incipient stalls in all sorts of configurations is examined in the IR initial flight test which of course is done by a CAA examiner (at enormous expense).