For the absolute newest versions (like v2.4b18 or higher), developer SiSTRo often posts early builds on his Ko-fi Shop .
If you want: (a) a version tailored to a particular audience (technical guide, academic essay, or quick summary), (b) a step‑by‑step installation guide for firmware 1.15.0, or (c) a different firmware version, tell me which and I’ll produce it. goldhen ps4 1150 link
No. Higher firmwares have even fewer exploits. If you update past 11.50 without a confirmed working jailbreak, you will lose the ability to run homebrew entirely. For the absolute newest versions (like v2