Fixed an issue where data was not reflected immediately after comet orbital element data was downloaded. Fixed UI issue with iOS 15.

* Fixed a possible crash on startup

Optimization on iOS 13

* Fixed a potential bug where the date/time display could be wrong when a scene is loaded.

* Supports the iPhone X series. * Fixed the error of URL call function.

* Due to update of the development tool OS requirements changed to iOS 8.0 or later. * Fixed an error where the sunset glow failed to appear. * Fixed the erroneous titles of Object Display setting screens. * Automated updating of data. * Shows iOS status bar at the top of the star chart.

- Updated trajectory data of Hayabusa-2.

- Fixed a potential crash at startup that could occur with iOS 9. - New download URL for orbital elements. - Updated Help.

- Added display of Hayabusa 2.

- Fixed an error with iOS 7 where the display turns upside down when sensor synchronization starts in landscape mode.

* Modified the Location Setting screen. * Fixed a potential crash that occurrs when setting the location.

* On/off of "Enable Compass" takes effect after restarting the app. * Calibration is not performed when the compass is disabled. * Correct rise/set times of the planets in the Object Information.

* Fixed an error where the app fails to acquire location with iOS 8. * Fixed a crash that occurs when comet display is on with iPhone 5s and later. * Fixed an error where the display is upside down in landscape mode with iOS 7.

- Fixed an error with iOS 7 where the angle of view and limit magnitude alter when the screen rotates.

- Shows the sun without halo around time of eclipse maximum. - Night vision display renewed. - Sensor follow-up function renewed. - Officially supports iPhone 6 and iPhone 6 Plus. - On/off of sensor follow-up function enabled. - Fixed an error where virtual sizes of Sun/Moon/Planets differ between Retina/non-Retina display. - Fixed an error with iPhone 5/6 Series where the angle of view and limit magnitude alter when the screen rotates. - Modified the description text and/or coordinate values in the Object Information for Arcturus and several Messier objects. - More precise apparent positions of the stars. - Fixed a potential crash on Find Object screen. - Fixed an error with Update Data screen layout. - Added description text to Update Data screen.

- Corrected wrong menu names in Help. - Fixed an error where some of constellation pictures would flicker. - Fixed an error where the Milky Way would not be displayed. - Fixed an error where asterisms would not be displayed. - Fixed an error where radiants of meteor showers would be obscured by overlapping constellation pictures. - Fixed an occasional error where all of Messier object names would appear when one of them was tapped and selected.

- Lunar eclipse simulation enabled. - New constellation pictures. - Fixed an error where the map could not be scrolled in location setting. - Fixed an error where scenes in the Scene List would fail to show up. - Fixed a drawing error of constellation lines. - Corrected the faulty size of planets in Actual Size mode.

- Fixed display errors with iOS7 that occur at startup with horizontal orientation. - Fixed a problem where guidance bars (TIME/UNIT) overlap the date & time numbers. - Fixed an error that shows a wrong year on every year-end. - Includes asterisms in Scene Copied as URL/Bookmarked. - Scene Copied as URL enabled to be specified in Julian Day (for downloads from StellaCloud). - Modified Help description.

- Modifies calculation method for limiting magnitude of planets. - Fixes an error that occurs when going back 24 months with a single scroll of the month. - Adds image and description of Corvus. - Changes the background of About iStellar screen. - Enables display and search of asterisms. - Shows stars up to magnitude 8.0. - Shows comet tails. - New landscape picture.

Modify so that to ignore a specific error that occurs when acquiring location information.

-Compatible with iPhone 5's and iPod touch's (5th generation) 4 inch retina display. -Fix the problem of star map on startup.

- Modify the drawing order of the sun, the moon and planets. - Display transit of Mercury and Venus.

- Corresponding to the meteor - Display the accuracy when GPS measures the location. - Fixed a problem when App retuens from back ground and downs after viewing the location setting. - Confirm in the case of URL includes location or time zone when it is called. - Fixed a problem star chart is not updated when URL is called. - Fixed a problen that the coordinates on the map is not updated. - Fixed a problem that Venus is displayed in front of The Moon at Venus occultation by the Moon. - Fixed a problem that the variable star is out of position on retina display - Fixed a problem that the constellation picture is not saved correctly when the secne is copied as a URL.

- Fixed a problem when you can't follow directions to obtain the corrected angular orientation.

MODIFICATION - Fixed star name data. - Fixed a problem drawing the star chart stop when you open notification on iOS 5. - Fixed initialization problems. - Update Moon, the planet's orbital data.