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Sparky744 XP12.4.2-2026/06/15

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@mSparks43 mSparks43 released this 14 Jun 23:31

Full Changelog: 3.8...3.9

Further support available on the Go Ahead discord server.

Installation

Extract the zip (sparky744.2026.06.15.zip) into your X-Plane 12 or X-Plane 11 aircraft folder, see the readme pdf for more details.

Linux

Nothing further is required other than extracting the zip

Windows

Two executables are included in the release zip file, these are required to have been installed for the aircraft systems to function.

MacOS users

After extracting the zip file to your X-Plane aircraft directory you will need to execute

sudo xattr -dr com.apple.quarantine *

From a terminal inside the X-plane folder.

Updates from previous versions

The zip is a standalone install, extract it into its own folder. previous releases included an update zip, however this was causing problems. If you have used the previous update zip and are having problems, make sure you have not extracted the contents to your global X-Plane plugins directory, this will cause problems and the only way to remove the files is to delete them manually (make sure there are no xtlua/xtlua_fdr/xtlua_keysystems/xtlua_nd folders in your global plugins directory)

Release XP12.4.2-2026/06/15 (OP Program XP12-42-2026/06/15):

Bug fixes

  • Fixup VR manipulators
  • expand g/s capture window
  • Fixup ACT RTE & LEGS page #944 (credit:remenkemi, Stratosphere 777)
  • Fixup Soundconfig back button returning to wrong page (credit:remenkemi, Stratosphere 777)
  • Fixup Tires not touching ground #938 (credit:remenkemi, Stratosphere 777)
  • Fix sound pages (credit:remenkemi, Stratosphere 777)
  • Improve gear (credit:remenkemi, Stratosphere 777)
  • Remove climb speed pregression work arounds
  • Nose wheel and body gear steering to spec

Release XP12.4.1-2026/04/28 (OP Program XP12-41-2026/04/28):

Bug fixes

  • fix engines and pax/cargo fms page spacing
  • XP11 LNAV regression fixes
  • Fix Wind Correction Angle algorithm
  • Increase AutoThrottle gains for tighter speed control

Release XP12.4.1-2026/04/02 (OP Program XP12-41-2026/04/02):

Bug fixes

  • avoid nulls in flight plan waypoints
  • LNAV fixes
  • disable V/S annuciation and window with active G/S
  • Fix XP11 functionality broken in OP Program XP12-41-2026/03/15

Release XP12.4.1-2026/03/15 (OP Program XP12-41-2026/03/15):

Enhancements

  • Updated voice commands
  • Custom waypoint progression code to better support slucing on flight plan
  • UNABLE RNP EICAS Caution logic

Bug fixes

  • Support for XP12.4.1
  • Remove inop GPU request in XP12
  • Allow climb during descent phase, make flare less aggressive
  • Increase gear firmness, move low weight extenstion closer to high weight
  • Fix go to PERF page on R6 of RTE page

Release XP12.3.0-2025/11/16 (OP Program XP12-30-2025/11/16):

Enhancements

  • Working PLN page for pilot and copilot
  • New LNAV and VNAV systems
  • Offset track support from RTE page
  • VNAV profile logging added to flight data recorder
  • PLN with no IRS

Bug fixes

  • Fix radio LED lighting and XTK error implimentation
  • Implement missing VNAV ALT entry logic
  • AP tuning (pitch, roll and LNAV)
  • replace new XP12 TOGA command
  • XP11 fixes (Gear and AT)
  • LNAV dont backtrack last waypoint
  • Updated LNAV track correction and direct to handling
  • Create VNAV profile as glideslope when only have destination altitude
  • Remove references to simDR gpss
  • Autofuel management, require both wings to need x feed off
  • New XTLua builds (lin/mac/win)
  • Fix icon bleed in PLN mode
  • Fix copilot PLN
  • Rough speed based turn preemption

Release XP12.3.0-2025/10/27 (OP Program XP12-30-2025/10/27):

Bug fixes

  • fix systems crashes caused by VNAV profile calculations

Release XP12.3.0-2025/09/20 (OP Program XP12-30-2025/09/20):

Culmination of fixes to date, Focus on XP12.3 weather radar

Enhancements

  • XP12.3 Weather Radar support
  • Weather Radar Panel interactions and lighting
  • VNAV profile following
  • Sync baro from either side
  • Improve THR REF animations and targeting

Bug fixes

  • Throttle becoming unresponsive
  • XP12 ground power unit fixes
  • GE engine fixes
  • dont run parking brake in replay
  • Added visual enhancements to PW4000 & CF6 (rossf93)
  • Wait for user throttle input before moving throttle lever
  • Fix systems crash reading cruise altitude
  • VR button fixes for Linux and Windows
  • Wing sweep option for toe brakes (e.g. single VR axis)
  • Fix auto fuel management
  • Fix com power notification when using com 2
  • Optimize all png images using pngquant (ErgerSusha)
  • HDG SEL shouldn't toggle
  • hard off XP AT
  • WXR dont draw over text