Apple has today released watchOS 8.4.1 for Apple Watch Series 4 and later. We don't yet know what's included in the update, with Apple's release notes simply stating that it "includes bug fixes for Apple Watch Series 4 and later."
As this update is only available to select Apple Watch models, our expectation is that it does not contain any accessibility changes for blind and low vision users; however, if you notice any changes, improvements or regressions in your own use of this release, please post a comment with your findings.
watchOS 8.4.1 is available via Over-the-Air Update (Settings > General > Software Update) or by going to the Watch app on your iPhone and navigating to General> Software Update. To install the update, your Watch must be connected to its charger and have at least 50% battery power.
More information on how to update the software on your Apple Watch is available on this Apple Support page.