Tales from the Crypt: An erratum was published for this puzzle at 2:32 PM EST 01/18/2019. In the clue for 4 Across, the character ה was corrected to ח.

A Killer Party: An erratum was published for this puzzle at 6:02 PM EST 01/18/2019. In Day 2, the image of the line of partygoers and the descriptions of Messrs. Sassoon and Arpaio were updated.

Common Flavors: An erratum was published for this puzzle at 1:37 AM EST 01/19/2019. A note was added about an additional tea in the process of being retired.

Uncommon Bonds: An erratum was published for this puzzle at 2:27 AM EST 01/19/2019. For the alternate set of maps, the order of the final two maps on the page was swapped.

iPod Submarine: An erratum was published for this puzzle at 1:58 PM EST 01/19/2019. An error that affected the behavior of Stephen Wolfram was corrected.

Furious Fellows: An erratum was published for this puzzle at 2:25 PM EST 01/19/2019. An error was corrected in the enumeration blanks of the fifth comment from the top of the page.

IN SYNdiCation: An erratum was published for this puzzle at 8:35 PM EST 01/19/2019. The order of the final two clips on the page was swapped.

Travel Planning: An erratum was published for this puzzle at 10:15 PM EST 01/19/2019. The last line of the third group of clues was corrected.

Sage Advice: An erratum was published for this puzzle at 3:00 AM EST 01/20/2019. In the first sage’s pieces, for the second cell in piece 1 and the seventh cell of piece 2, the provided images were the mirror images of the correct shapes. The result was that the most protruding point of each of these cells was angled in the opposite direction from its correct direction.

A Lemon Tree: An erratum was published for this puzzle at 4:00 AM EST 01/20/2019. The order of the second and third equations was swapped.

Clued Connections: An erratum was published for this puzzle at 11:25 AM EST 01/20/2019. The order of two words in was swapped.

First You Visit Burkina Faso: An erratum was published for this puzzle at 2:25 PM EST 01/20/2019. In step 19, B/A was corrected to A/B.

This is not a puzzle.