City of Fremont issued the following announcement on Apr 14.
ALL CITY OF FREMONT REGISTERED VOTERS!
Due to the redistricting in our state, every registered voter in the City of Fremont is receiving a new "Voter Identification Card" in the mail. The picture is an example of what you will receive in the mail. The information that is updated are the numbers associated with the following: State Senate and State Representative.
Original source can be found here.