Prevent Steam's "What's New" from showing

hide-steam-whats-new.txt

Search for these 181 characters in Steam\steamui\chunk~2dcc5aaf7.js

return{bEventsLoaded:this.m_bEventsLoaded,bInitialLoadPending:this.m_bInitialLoadPending,eventsToShow:this.GetLibraryHomeBestEventsForUser(),takeoverEvents:this.GetTakeOverEvents()}

Replace with these 181 characters. There's a lot of spaces, they are required to avoid triggering Steam re-downloading the file.

return { bEventsLoaded: false, bInitialLoadPending: false, eventsToShow: [], takeoverEvents: []                                                                                     }