You can find a visual overview of what's new for this release on our website.

Major Updates

New Features:

• 3D Printing Support: Export any component or combination to OBJ file (fixes #604)
• RASAero compatibility: Import/Export CDX1 files (fixes #875 and #1147)
• Dark mode (normal and high-contrast) and custom UI font size support (fixes #1089)
• Export sim table to CSV (fixes #2077)

Bug Fixes:

• Fix Tube fin drag (fixes #2065)
• Fix Base drag when using Cd override (fixes base drag hack sim error, fixes #2118)
• Fix Atmospheric pressure when using ISA conditions (fixes #2103)
• Properly sanitize XML in ORK file (eliminates corrupt ORK files, fixes #2051)

Other New Features

• Bumped app to Java 17
• Export and import preferences to XML file
• Display secondary stability unit. This means you can display stability in both calibers and percentage of length (fixes #2079)
• Added "cases" and "manufacturers" substitution in motor config names (fixes #2055 and #2204)
• Selection of "common name" or "manufacturer's designation" in motor selection table is now reflected everywhere else in the program (fixes #2072)
• Added "plugged" option in charge delay combobox (fixes #2090)
• Added motor type to "show details" in motor selection (fixes #2069)
• Added instances settings in launch lug config (fixes #2035)
• Account for fin cant in fin root points, and support canted fins in fin marking guide (fixes #2231 and #2242)
• Set cluster tube separation in absolute or relative units (fixes #1970)
• Support transparent rendering and export of Photo Studio images (fixes #2076)
• Added "Select -> Components of same color" and "Select -> None" options (fixes #2129)
• Remember column width, order and visibility in component preset table (fixes #2357)

Bug Fixes

• Fixed mass issues with fin sets (fixes #2217)
• Fixed CG issues for launch lugs and rail buttons (fixes #2040)
• Improved rail button drag calculations
• Added parts detail for pods and boosters (fixes #2084)
• Fixed parachute position when using auto radius (fixes #2036)
• Fixed pod set and booster marker position under certain circumstances (fixes #2047)
• Fix CG marker location in top view (fixes #2050)
• Handle zero-area fins (warn and don't crash with NaN error) (fixes #2032)
• Don't dispose config dialog when no components are selected in 3D view (fixes #2108)
• Display ISA values in temp and pressure fields (fixes #2104)
• Improved simulation of fins on transitions and nose cones (fixes #2113)
• Cleaned up multi-sim editing (fixes #2138 and #1826)
• Update ruler units immediately when preferences are changed (fixes #2151)
• Compute CG and CP based on currently active stages (fixes #2171)
• Improved mass/CG calculations for fillets (fixes 2209)
• Set auto radius correctly for mass objects (fixes #2267)
• Apply radial positioning to multi-engine clusters (fixes #2283)
• Fixed 3D rendering of fin tabs (fixes #2286)
• Update recent file list when opening via file association (fixes #2222)
• Corrected the columns displayed in the component preset table's popup menu, ensuring only relevant columns appear
• Ensured optimum delay is saved in flight summary and .ork files (fixes #2353)
• Corrected longitudinal moment of inertia calculations by excluding shoulders (fixes #2278)
• Fixed exception when setting wind speed to zero (fixes #2386)
• Fixed unexpected mass and CG override interaction (fixes #2394)

Miscellaneous

• Updated example rockets (including brand-new two stage example)
• Show calculated values in override tab (fixes #1629)
• Decrease minimum FoV to 10 degrees in Photo Studio
• Increase resolution of launch temperature and pressure to 2 decimal places (fixes #2003)
• Display Cd override with 3 decimal places
• Added wiki button to help menu (fixes #2046)
• Eliminate option to save "some" sim data (fixes #2024)
• Added OK/Cancel buttons when editing simulations (fixes #2158)
• Added OK/Cancel buttons when editing preferences (fixes #2266)
• Added multi-sim edit indicators (fixes #2159)
• Show warning when motor file has illegal format (fixes #2150)
• Reset window position if off-screen (fixes #2141)
• Keep current field value when "auto" option is unchecked (fixes #2096)
• Open dialog to save design info when first saving file
• Added '3D Printable Nose Cone and Fins' to example rockets
• Use more sensible colors for thrust curve selection in motor selection dialog (fixes #2385)

...along with numerous other minor fixes and enhancements.

Contributors for this release:
@SiboVG @JoePfeiffer @hcraigmiller @neilweinstock @RemingtonHolder @thzero @UncleRus @raynichc @MayNc10 @ptsongalis @JonathanJagt23 @wolsen @jura0207 @janforys @MedKebsi @luzpaz @jimmiedave @SpaceXCheeseWheel