• From the editors: Caught with their hands in the cookie jar, again

• News and notes: What's up (and down) with administrators, articles and languages

• Special report: Are reputation management operatives scrubbing Wikipedia articles?

• In the media: "The fulfillment of the dream of humanity" or a nightmare of PR whitewashing on behalf of one-percenters?

• Discussion report: December discussions around the wiki

• Arbitration report: Announcement of 2020 Arbitration Committee

• Traffic report: Queens and aliens, exactly alike, once upon a December

• Technology report: User scripts and more

• Gallery: Holiday wishes

• Recent research: Acoustics and Wikipedia; Wiki Workshop 2019 summary

• From the archives: The 2002 Spanish fork and ads revisited (re-revisited?)

• On the bright side: What's making you happy this month?

• Op-Ed: Why we need to keep talking about Wikipedia's gender gap

• WikiProject report: Wikiproject Tree of Life: A Wikiproject report