Public pre-release testing of both Sim Update 3 for MSFS 2024 and Sim Update 16 for MSFS 2020 continues, with both sims receiving a new beta build this week. In case you missed it, you can read the release notes for these new beta builds here:

• Sim Update 3 Beta (v1.5.15.0) – July 9th, 2025
  
  General Bug Fixes
• Fixed external vcockpits size and placement not being saved
• Fixed towplane sometimes not spawning
• Fixed rare crash occurrence when adjusting flight plan waypoints altitude
• Resolved regressions:
  • MSFS2024 SU3 1.5.7 Popout windows not working
  • When you activate the drone mode, it goes crazy
  • REGRESSION – PC-24 Modularity – Passenger Door Does Not Interact on Walkaround
• Controls
• Added “Presets Locked” popup when trying to edit an action on a Locked Preset
• SDK
• WASM API
• Fixed WASM System reloading on build package

• Sim Update 16 Beta [v1.39.6.0] – July 8, 2025
  
  General Bug Fixes:
  Resolved beta regressions:

• TIN in Zurich
• Certain Out of Memory crashes on Xbox
• Various updates to CU10 and CU11 packages
• Fixed reversion of HTML/JS technology stack (Coherent) build configuration optimization parameters on Xbox to address regression of HTML/JS avionics performance

Also new this week, we’re pleased to announce that several aircraft from the Deluxe and Premium Deluxe Editions of Microsoft Flight Simulator 2024 are now available to rent from the in-sim Marketplace. Renting gives simmers the opportunity to try these planes for a small fee. When you rent an item, you’ll also receive an offer to purchase it at a discounted price.

The next Developer Livestream is scheduled for Wednesday, July 23, 2025.

Info from this link.