Firebase Database
- You can now get the ETag value of a database reference by passing
etag=True
to theget()
method of adb.Reference
object. - The
db.Reference
class now has aset_if_unchanged()
method, which you can use to write to a database location only when the location has the ETag value you specify. - Fixed an issue with the
transaction()
method that prevented you from updating scalar values in a transaction.