Some homebrew or CFW setups required 4.90 specifically before 4.91 broke compatibility. For regular online play (PSN), just install the latest official firmware (currently 4.92).

Even years after the launch of the PlayStation 4 and PlayStation 5, Sony continues to maintain the legacy of the PlayStation 3. While major feature updates are long gone, Sony periodically releases stability updates to keep the system running. The is a critical update for users who want to keep their consoles functional and connected to the PlayStation Network (PSN) .

Sony’s patch notes for 4.90 were famously brief:

Improved overall system stability and performance.

Sony’s official changelog succinctly notes that the update Beyond general stability adjustments, updates of this nature serve two critical purposes for a legacy console: PS3 - HFW 4.90.1 (Hybrid Firmware) - PSX-Place

If you want, I can expand this into a longer article, release notes-style summary, step-by-step tutorial with screenshots, or a safety checklist.

If your PS3 is running a version older than 4.80, use this method:

, which are necessary to play newer Blu-ray movie releases on the console. Version 4.89 (May 2022):

While the user requested a focus on 2021, it is important to clarify that was actually released on February 28, 2023 . The primary update released during the 2021 window was Version 4.88 (June 2021). However, since version 4.90 is the critical milestone many are currently looking for, this guide covers what it does and how to get it. What Does Update 4.90 Actually Do?

Ensures the PS3 remains compatible with PlayStation Network services. How to Download and Install PS3 Update 4.90 (2023)

If your console is connected to a stable network, this is the quickest method: How to update PS3 console system software - PlayStation

A: You likely won't see faster frame rates in games. The "performance boost" is mostly on the backend (security and decryption). You might experience a slightly smoother XMB menu, but the core gaming performance remains unchanged.