Synaptic Simulations

Version History

Historical changelogs for the Synaptic A220.

Using unofficial modifications can result in screens crashing when upgrading versions. If you are using a community mod and encounter any issues, please uninstall the mod and retry before reporting issues to us.

v1.0.8 — September 4, 2026Latest

Systems

Added
  • PFD altitude in meters when FCP selector is in metric
    • Added
  • Expanded lateral deviation scale below 1,500ft AAE
    • Fixed
  • IF legs are sometimes not converted to TF legs
    • Fixed
  • TOD indicator and aural should only trigger if VPATH is valid
    • Fixed
  • TOD and BOC indicator and aural should only trigger before sequencing another mode
    • Fixed
  • Guidance does not always capture VPATH at TOD
    • Fixed
  • LPV approaches draw VPATH through VGP
    • Fixed
  • TOD should not be drawn after FAF
    • Fixed
  • Half bank affects guidance at low altitudes
    • Fixed
  • Flashlight turned on by default at night
    • Fixed
  • COM/NAV key events should change the standby frequency
    • Fixed
  • Rudder limit arc draws beyond actual limit
    • Fixed
  • Holding MKP CLR/DEL key should clear entire scratchpad
    • Fixed
  • Opening FMS MSG... dialog should acknowledge per FMS
    • Fixed
  • Checklist sensed state for SPOILER_LEVER_* variables
    • Fixed
  • Normal checklists should not appear in lower half of SUMMARY
    • Fixed
  • VSD should be invalid in PLAN mode
    • Fixed
  • Approach thrust should idle after gear down or flaps 4
    • Fixed
  • CTP barometer collar does not sync with current unit setting
    • Fixed
  • React builds in development mode 1

    • Sounds

    Fixed
  • Several aurals overlap when triggered together
    • Fixed
  • Adjusted engine mixing and overall refinements
    • Fixed
  • Adjust spatialization of avionics, battery, and equipment fans
    • Fixed
  • Adjust volume and refinements to packs, trim air, and recirc fans
    • Fixed
  • Adjust volume and spatialization of wind effects
    • Fixed
  • Improved rattles and shaking effects when performing abrupt manuevers
    • Fixed
  • Improved overall dynamic range of the internal mixing as a whole
    • Fixed
  • Improved ground roll sound responsiveness
    • Fixed
  • Odd behaviors in 400, 300, 200, 60, and 5 radio altitude calls
    • Fixed
  • Missing flap/spoiler lever sound
    • Fixed
  • Missing avionics sounds
    • Fixed
  • Oxygen sound coming from cabin
    • Fixed
  • Pack bleed exhaust audible from rear cabin
    • Footnotes

    1. Contrary to community speculation, this has made a negligible impact on performance ↩

    v1.0.7 — August 28, 2026

    Systems

    Fixed
  • Improved localizer capture
    • Fixed
  • Reduced nose-wheel steering jitter 1
    • Fixed
  • Removed wing fold and capped spoiler handle position 2
    • Fixed
  • Remove FMS preview VDI when nav transferred to LOC
    • Fixed
  • Hide inactive CTP menu items
    • Fixed
  • Don't receive audio on VHF3 when in DATA mode
    • Fixed
  • FCP manual speed preselect should preview for 5 seconds
    • Fixed
  • Hide heading pointer on PFD when in AUTO mode
    • Fixed
  • Latched and sensed ECL items should only latch if they are next
    • Fixed
  • Datalink aural variables3 are always reset to 0

    • Art

    Fixed
  • Missing contrails and engine and APU heat blur effect

    • Sounds

    Added
  • New ground roll effects and overall fine tuning
    • Added
  • New touchdown effects and overall fine tuning
    • Fixed
  • Changed dynamics of high end noise and reduced broadband noise in engines
    • Fixed
  • Changed gear nose gear deploy wind noises
    • Fixed
  • Adjusted nose gear extension and retraction thunk and scrub after liftoff
    • Fixed
  • Adjusted some cockpit interactions to sound more spatial
    • Fixed
  • Replaced most warning GPWS callouts
    • Fixed
  • Replaced config-related aural warnings

    • Liveries

    Added
  • Updated custom checklist package for airBaltic
    • Footnotes

    1. This should hopefully reduce the risk of the aircraft flipping on the runway during landing, though this is not a bulletproof solution ↩

    2. Wing fold was used to simulate the drastic drop in lift when the ground spoilers are deployed, but may have also contributed to the aircraft flipping during landing ↩

    3. L:A22X Aural Double Tone and L:A22X Aural Double Tone x3 ↩

    v1.0.6 — August 25, 2026

    Systems

    Fixed
  • Performance improvement passes on Rust backend code
    • Fixed
  • WASM crash when attempting to open leg menu on some procedures
    • Fixed
  • PFD altitude tape incorrectly hid ten-thousands placeholder above 1,500 ft
    • Fixed
  • Avionics showing missing indications in active pause
    • Fixed
  • Post-flight checklists shown in flight after simulator has been paused
    • Fixed
  • Heading select line on MAP shown initially
    • Fixed
  • Cooling inlet not defaulting to OFF in cold and dark state
    • Fixed
  • Fix screens blanking out when pressing B on a controller

    • Art

    Fixed
  • Reduce complexity of model geometry for improved performance and fewer stutters 1
    • Fixed
  • Missing interior occlusion when seen from exterior view
    • Fixed
  • Forward window view missing cabin walls on the left and right sides

    • EFB

    Fixed
  • Merged the APT filter for Navigraph to render all available charts
    • Footnotes

    1. There are now approximately one million fewer vertices on LOD 0, including shadow vertices ↩

    v1.0.5 — August 18, 2026

    Systems

    Added
  • N1 preview command indicator in autothrottle protection mode
    • Added
  • Ability to INSERT AS WPT from FMS FIX dialog
    • Added
  • Ability to insert runways at flight plan airports as fixes 1
    • Added
  • Ability to insert ILS navaids as fixes
    • Added
  • Automatically display non-normal checklists based on CAS messages
    • Added
  • Support for timed, limitation, deferred, and follow-on checklist items
    • Added
  • Native checklists in both MSFS 2020 and MSFS 2024
    • Added
  • Sentry telemetry opt-in dialog
    • Fixed
  • General pass over the ISI to make improvements to performance
    • Fixed
  • Incorrect VHF navaid icon shown in the FMS FIX INFO dialog
    • Fixed
  • VREF offset should not be required to set arrival speeds
    • Fixed
  • STATUS synoptic showed incorrect reading for right side brake temperatures
    • Fixed
  • Out of date magnetic variation database from October 2025
    • Fixed
  • VPATH disarms if the aircraft deviates from the lateral flight plan 2
    • Fixed
  • Direct-to with a course draw in the wrong direction if the aircraft is past the fix
    • Fixed
  • FMS VIA/TO page does not allow scrolling past the last input
    • Fixed
  • Entering V in a transponder input should squawk VFR
    • Fixed
  • TERR overlay should not be available on the DU5 map
    • Fixed
  • Cabin pressure not affected by cabin door open in flight
    • Removed
  • ALONG TRK WPT option on flight plan legs until a correct implementation is made
    • Removed
  • CTRLD AIRSPACE and SUA symbol layers until they are made more performant

    • Art

    Added
  • Openable cockpit gear pin stowage box
    • Added
  • No Cabin Variant in MSFS 2024
    • Fixed
  • Main gear door panel open in flight in MSFS 2020
    • Fixed
  • Misaligned first officer-side keyboard panel marks in MSFS 2020

    • EFB

    Fixed
  • Pause at top-of-descent not engaging consistently
    • Fixed
  • Missing un-pause option when pause at top-of-descent activates
    • Fixed
  • Move time compression settings to main menu for ease of access
    • Fixed
  • Change landing calculator landing weight to plain weight rather than x1000

    • Liveries

    Added
  • New custom checklist package for Breeze
    • Footnotes

    1. Airport must be origin, destination, or alternate; works in the FMS DBASE SEARCH, ROUTE LEGS, ROUTE VIA/TO pages, and the DIRECT TO, FIX, and MAP CENTER dialogs ↩

    2. The aircraft will now stay in VPATH as long as FMS1/2 is the active lateral guidance mode ↩

    v1.0.4 — August 11, 2026

    Systems

    Fixed
  • General pass over the ND and EICAS to make improvements to performance
    • Fixed
  • Slightly adjust FMS cross-track gains when en-route and on approach 1
    • Fixed
  • Starting engines with throttles set to max causes crazy N1/N2/EGT values
    • Fixed
  • APU start sequence broken when door opens before start request is commanded
    • Fixed
  • Ailerons droop the wrong way in windy conditions
    • Fixed
  • CI legs with no course change draw loop on the map
    • Fixed
  • CI legs find intercepts on the other side of the world
    • Fixed
  • VA legs incorrectly treated as vectored when computing discontinuities
    • Fixed
  • VM legs incorrectly treated as unvectored when computing discontinuities
    • Fixed
  • IF legs not replaced with TF legs when clearing discontinuities 2
    • Fixed
  • Top-of-descent marker pinned to aircraft's present position
    • Fixed
  • Turn arcs and intercept arrows are not always drawn correctly on the map
    • Fixed
  • PFD displaying date one day ahead
    • Fixed
  • PFD vertical and lateral deviation preview pointers using wrong icon for FMS source
    • Fixed
  • Map OVLY task menu should time out after 2 seconds
    • Fixed
  • Altitudes swapped when entering between altitude constraints into FMS
    • Fixed
  • Missing runways in custom sceneries that would use "Macadam" or "Undefined" as surface types
    • Fixed
  • FLAPS HANDLE INDEX variable not set to current detent 3
    • Fixed
  • AUTOPILOT ALTITUDE LOCK VAR variable not set to current preselector altitude
    • Fixed
  • Checklist RESET ALL function should only be selectable from index pages
    • Fixed
  • Checklist INLET_OFF variable state flipped
    • Fixed
  • VHF frequencies rounding down when set externally or when switching channel spacing
    • Fixed
  • OFF indication missing on avionics cooling inlet switch
    • Fixed
  • Incorrect relative altitude shown for TCAS traffic
    • Fixed
  • Procedure identifiers on FMS PLAN INIT page not cleared when corresponding segment is deleted
    • Fixed
  • Several incorrect indications on the AIRCRAFT information dialog
    • Fixed
  • Fix FMS crashes on PERF ARR, ROUTE POS REPORT, and ROUTE FLT LOG pages
    • Fixed
  • Unable to select visual approaches from the FMS ARRIVALS dialog
    • Fixed
  • Sometimes unable to select approaches from the FMS ARRIVALS dialog with native navdata

    • Art

    Fixed
  • Reduce display texture size by roughly 40% by removing wasted space 4
    • Fixed
  • Reduced cabin draw calls, mesh vertices, and model node count for improved performance

    • EFB

    Fixed
  • Loadsheet page negatively impacts performance
    • Fixed
  • Charts occasionally missing aircraft position overlay
    • Fixed
  • Remove "attach/remove covers" option from ground equipment page in MSFS 2020

    • Flight Model

    Fixed
  • Doors are openable in flight
    • Footnotes

    1. This should help reduce the cross-track deviation observed when flying along the flight plan route; a more comprehensive review of these gains is planned for a future update which will also include localizer capture ↩

    2. This manifested itself as persistent discontinuities in the flight plan on the map, despite the FMS ROUTE page showing no discontinuities; guidance remained unaffected in these cases ↩

    3. This caused compatibility issues with third-party software such as Newsky and A Pilot's Life V2, and may have been responsible for incorrectly simulated flap damage with the simulator's default damage model ↩

    4. This is expected to bring a sizeable improvement to performance, as less VRAM is used by the main displays and less time is taken on the graphics queue ↩

    v1.0.3 — August 4, 2026

    v1.0.2 is intentionally skipped

    We submitted a patched package to the Microsoft Marketplace, which automatically bumped the MSFS 2020 version to v1.0.2. To keep the versions in sync moving forward, we are skipping ahead to v1.0.3.

    The v1.0.2 build on MSFS 2020 is equivalent to the v1.0.1 build on MSFS 2024.

    Systems

    Added
  • Updated the default Navigraph database bundled with the aircraft to 2503 (20MAR25–16APR25)
    • Added
  • Ability to select nav database from FMS DBASE STATUS page
    • Fixed
  • General pass over the PFD, ND, and FMS pages to make improvements to performance 1
    • Fixed
  • WASM crash when attempting to clear a discontinuity at the start of the flight plan
    • Fixed
  • WASM crash and instability when starting APU from battery power
    • Fixed
  • WASM crash occasionally when using native navdata
    • Fixed
  • Flight phase not being reset correctly following turnaround
    • Fixed
  • Display brightness causes weird transparency on pop-out window 2
    • Fixed
  • Valid zero-fuel weight values being rejected on the FMS INIT FUEL page
    • Fixed
  • Valid SimBrief usernames being rejected on the FMS UPLINK dialog
    • Fixed
  • Terrain on ND sometimes not appearing or disappearing after dragging
    • Fixed
  • RNAV approaches prompting automatic nav-to-nav transfer with native navdata
    • Fixed
  • Coordinates on the FMS DBASE SEARCH page would not be properly formatted when copied
    • Fixed
  • Courses shown without magnetic variation on FMS ARRIVAL DATA dialog and ROUTE pages
    • Fixed
  • Checklist NOTE items should not have a box around them
    • Fixed
  • Checklist nested conditionals or multi-select selections would not activate all items
    • Fixed
  • Checklist sensed state for INLET_OFF, EXHAUST_VLV_ONLY, EXHAUST_AUTO, and EXHAUST_ON variables
    • Fixed
  • FCP manual speed preview appearing errneously when clamped by minimum trim speed
    • Fixed
  • PFD chronometer not overflowing to H_:__ format when over one hour
    • Fixed
  • L ICE DET FAIL and R ICE DET FAIL messages latched after system test
    • Fixed
  • Executing a direct-to the FAF prevents nav-to-nav transfer from arming
    • Fixed
  • NO VPATH FMS messages appearing even when not in descent
    • Fixed
  • Overly aggressive autobrakes on de-rotation

    • Art

    Fixed
  • First window on starboard side does not match liveries
    • Fixed
  • Missing wing placards
    • Fixed
  • Fuse colored liveries missing plugged windows
    • Fixed
  • Reduced cabin node count and disabled tray table interactions for improved performance
    • Fixed
  • Reduced cockpit node count for improved performance
    • Fixed
  • Disabled shadows on cockpit meshes for improved performance
    • Fixed
  • Improved LOD distances for various interior and exterior models
    • Fixed
  • Missing new blade textures in MSFS 2020

    • EFB

    Added
  • Advisory when time acceleration is active
    • Fixed
  • Landing performance calculator showing incorrect landing distances
    • Fixed
  • Default GPU auto-disconnect option to OFF
    • Fixed
  • Navigraph token is lost on every new flight in MSFS 2024
    • Fixed
  • Remove inoperative callout options page

    • Flight Model

    Fixed
  • Overly soft gear compression causing issues during takeoff and landing 3

    • Liveries

    Added
  • New custom checklist package for airBaltic
    • Added
  • New custom checklist package for jetBlue
    • Fixed
  • Flipped ALTN FLAP variable on Delta's Preflight checklist
    • Fixed
  • Missing overwing registration on Korean Air
    • Footnotes

    1. Your mileage will vary, but we've seen improvements to average FPS of up to 30% on some machines; further improvements will be continually made in the coming weeks ↩

    2. We believe this may also resolve display issues with AMD 7000 series cards, but this is conjecture and has not been confirmed ↩

    3. This caused issues such as wobbling on the ground when applying rudder inputs at higher speeds, as well as the aircraft being randomly catapulted into the air ↩

    v1.0.1 — July 28, 2026

    Fixed
  • Performance degradation on FMS ROUTE LEGS page

    • v1.0.0 — July 28, 2026

    🎉 Welcome to the A220! 🎉

    Known Issues

    1. If you do not see a blue preview needle on the HSI before LOC intercept when flying a LOC or ILS approach, select HDG lateral mode on a course to intercept, then swap the NAV SRC manually on the CTP and arm APPR on the FCP
    2. Entering data into the FMS INIT FUEL page without the IRSs aligned will cause the values to not be accepted. Please wait until IRS alignment before entering a fuel plan
    3. Using the Native database with custom sceneries sometimes leads to the simulator's API incorrectly returning no ILS stations for the airport. When flying a LOC or ILS approach, verify that the correct frequency and course is tuned 31 nmi from the airport reference point.
    4. Navigraph authentication does not always persist. Users may be prompted to sign-in again when the simulator is reloaded
    5. Starting a flight from mid-air does not initialize the aircraft correctly and causes it to drop out of the sky

    Welcome

    Documentation for the Synaptic A220.

    Map Server

    Installing the external map server used by the navigation display.

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