Note: This version (15.7.1) was released in error, the contents of this release should have been versioned as 16.0.0 by our release process.
The breaking changes that will be in v16.0.0 here are an increase in minimum iOS target version to 11.0 and macOS version to 10.13.
Attempts to install v15.7.1 without apple deployment targets at that level or higher should result in fast-failure during pod install.
If these new apple target deployment minimums are not possible for project, please stay on v15.7.0
v16.0.0 of react-native-firebase will be released shortly.
Sorry for the inconvenience.