Apple has released iOS 13.1.1 and iPadOS 13.1.1. You can download them on your iPhone or iPad by going to Settings > General > Software Update.
According to Apple’s release notes, each upgrade:
° Fixes issues that could prevent iPhone restoring from backup;
° Addresses an issue that could cause battery to drain more quickly;
° Fixes an issue that could impact recognition of Siri requests on iPhone 11, iPhone 11 Pro, and iPhone 11 Pro Max (iOS only);
° Resolves a problem where Safari search suggestions may re-enable after turning them off;
° Addresses an issue that could cause Reminders to sync slowly;
° Fixes a security issue for third-party keyboard apps.