bring up to date - Phrases/Idioms
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Convey information up to the present; also, make one aware of or conform to new ideas, improvements, or styles. For example, Bring me up to date on the test results, or We've been bringing Grandma up to date with a little makeup and some new clothes. The term up to date comes from bookkeeping, where it signifies account entries to the present time. [Late 1800s]