OmniGraffle 3.16 is a compatibility update for iOS 15 and iPadOS 15.

Version 3.16

• Keyboard Shortcuts — Prevent keyboard shortcuts from being sent to the document browser when it is not visible on iOS 15 and iPadOS 15.

Version 3.15.4

• Omni Automation [PRO] — Omni Automation now supports storing and accessing credentials in the Keychain. For more details about this change and other recent Omni Automation improvements, see the API Reference Release Notes (available via the Automation button in the toolbar).
• Site Licenses — The process for licensing OmniGraffle via a site license has been simplified: customers who authenticate our apps using their own SAML servers can now enter their email address to initiate the authentication process.
• First Run — Fixed a bug that could cause OmniGraffle to display an inaccurate error message after signing into an Omni Account associated with an expired trial.

Version 3.15.3

• Omni Automation [PRO] — Omni Automation now supports calls to network resources that require authentication or use a RESTful API. For more detail, see the API Reference Release Notes.
• OmniPresence — Fixed a bug that could trigger errors and prevent OmniGraffle from accessing existing OmniPresence sync folders after updating to iOS 14.

Version 3.15.2

• Tools — Updated the Line tool tooltip to mention the tapping method to create lines.
• Omni Automation [PRO] — Omni Automation has been updated with improved security and per-script approval for external scripts.
• Gestures — Restored the delay before the contextual menu activates on iOS 14.
• Lines — Fixed the highlight around the target object when connecting a line ending.
• Stability — Fixed a crash encountered when modifying groups.

Version 3.15.1

• Omni Automation [PRO] — Fixed crash when calling SharePanel.show().
• Localizations — Show English strings for missing translation in the in-app purchase options.