The PS4 homebrew scene can enjoy not one but two new releases thanks to a team of modders including sleirsgoevy and AlAzif. Released at the same time are the Mira custom firmware compatible with PS4s on firmware 7.55 and an updated jailbreak also for PS4s on version 7.55. The exploit and payloads are also compatible with versions 7.50 and 7.51.
the exploit and the payloads from @sleirsgoevy and @_AlAzif work on all 3 versions: 7.50, 7.51 and 7.55. please stop asking if they work on your specific version. it's annoying.
Even the 7.02 exploit is temperamental, I probably will update eventually to 7.5x but only when there's a game I really want to play.
Staying on 5.05 would have been cool, rest mode always seemed to work etc, but backporting can't fix everything:
Some games really do need newer functionality, for example I saw posted on another site:
Mobile Suit Gundam Extreme vs. Maxiboost On backport 5.05 ok, but game use sceSaveDataSetupSaveDataMemory2, 5.05 can't save
Mobile Suit Gundam Extreme vs. Maxiboost save file size is 10mb and 36mb (replay data), 5.05 save file size limit is 8mb max