The Steam Client Beta has been updated with the following changes:
General
Fixed issue where viewing app properties caused the Steam client to be unusable
Linux
Fixed an intermittent crash when the OS audio server restarts
macOS
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Added "End of Life" alert for macOS 10.11 ("El Capitan") and 10.12 ("Sierra"). Steam Client support for these operating systems will end on September 1st, 2023 at 10am. See here for additional details.
Source: https://store.steampowered.com/news/gro ... 8704734444