CSS Software
ReleaseMar 19, 2026Full changelog

CSS 737-500 v1.9.0: SimBrief import, virtual crew, and custom sim events

This release adds CO RTE import from SimBrief, virtual crew features, new cockpit details, and a long list of system fixes.

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Highlights

  • Virtual crew with customizable airline-specific sound packs
  • SimBrief CO RTE import and broader frequency/sim-event support
  • Takeoff card, animated checklist, sun visors and cockpit detail upgrades

Original blog summary

A major update for the CSS 737-500, adding crew voiceovers and flight plan import support from SimBrief.

Why it matters

Virtual crew, SimBrief CO RTE import, custom sim events, cockpit details and a long 1.9.0 changelog.