Fixed a bug where apps could crash when editing bridges.

Fixed an error in the privacy policy URL.

Changed support URL.

Changed the EU General Data Protection Regulation(GDPR) compatible library from Google Mobile Ads Content SDK to User Messaging Platform SDK.

Updated Google Mobile SDK.

Fixed a misconfiguration of SKAdNetworkID.

-Supported IOS 14 IDFA (Identifier for Advertising).
-Changed to display Interstitial Ad when saving files

Improved speed of application launch and memory usage.

Fixed a bug that rendering may stop while loading a file.

Improved UI at layout editing.

supported General Data Protection Regulation (GDPR).

Fixed bugs.

Improved rendering performance.

Fixed a bug that the application crashes when the second launching.

Adjusted the layout for iPhone X.

Fixed bugs.

Updated advertisement SDK.

Fixed a bug.

Fixed a bug.

Updated advertisement SDK.

Fixed a bug that the physics engine would be invalid.
Fixed a bug that the thumbnail image are not saved when saving documents.

Added function to set drawing quality.

Fixed a bug.

-Added railroad crossing.
-Added railroad track with signal.

Fixed a bug related to train movement.