The Congressional Record (CR), known by different names over time, is the official record of proceedings and debates of the U.S. Congress. There are two editions: the daily edition and the bound edition. The Daily edition is published when Congress in in session and includes a "Daily Digest" summary of floor and committee activity. The Bound is a compilation of the daily editions, re-paginated and re-indexed. The Bound is published once per session and is considered the permanent, official edition.
Image credit: Alexis Jensen
To find the year that corresponds to a session of Congress, see the Dates of Past Sessions page on Congress.gov
A behind the scenes look at the creation of the print and online versions of the Congressional Record in this five minute video.