Samsung Drops August 2026 Security Update for Galaxy S23, S23+, and S23 Ultra

Just under the wire on the final day of the month, Samsung has officially commenced the rollout of the August 2026 security update for its Galaxy S23 lineup. The release arrives as a welcome development for users, following a noticeable slowdown in the South Korean tech giant’s typically punctual software update cadence over the past few months.

Firmware Details and Rollout Status

Currently deploying in Samsung’s home market of South Korea, the latest software patch caters to the standard Galaxy S23, the Galaxy S23+, and the premium Galaxy S23 Ultra.

The update carries the firmware version S91xNKSS8FZH2 and weighs in at approximately 390MB, though the exact file size will vary marginally depending on the specific model. While the primary focus of the release is the integration of the critical August 2026 security patch, the file size suggests the inclusion of minor under-the-hood enhancements. Users can anticipate a standard suite of bug fixes, alongside overarching improvements to system stability and device reliability.

How to Install the Update

For Galaxy S23 owners currently residing in South Korea, the over-the-air (OTA) update is available to download now. To manually check for the software, follow these steps:

1. Open the Settings app on your device.
2. Scroll down and navigate to Software update.
3. Tap on Check for updates.
4. Once the download is complete, tap Restart to finalize the installation.

Given Samsung’s traditional phased rollout approach, international users outside of South Korea should expect the firmware to begin hitting global markets in the coming days or early next week.