In April, Torvalds warned that 5.13 would likely be “making up” for the smaller release of 5.12 – a position he maintained following the release of the first release candidate.
The second release candidate of 5.13 was “slightly smaller than average,” according to Torvalds.
RC3 was surprisingly small but Torvalds suspected that not everybody sent in their fixes and the next release would be bigger. Torvalds’ suspicion proved correct and RC4 ended up being “not the biggest rc4 we’ve ever had, but it’s certainly up there, believably competing for the title.”
So far, Torvalds isn’t too worried about the release cycle of 5.13 and that “Nothing really looks all that hugely exciting” in RC5.