This year marks C++'s 40th anniversary, and at C++ Day 2025 (a proper "wrap-up post" will follow in the next days) we couldn't let the occasion pass without a little celebration!

While there wasn't a cake, we gathered everyone to sing "Happy Birthday, C++":

Followed by a lively game that mixed 1980s pop culture, ISO C++ trivia, Bell Labs history, and more:

Over 160 people joined the event, with about 120 staying until the end to play and win some unique prizes: 1980s-style posters featuring movie quotes reimagined with a C++ twist:

And we had a winner!

Also we ran a raffle including all quiz participants:

The posters also decorated the venue all day long, giving it a warm, retro, and festive feel:

It was a small but heartfelt way to celebrate four decades of a language that continues to inspire and evolve.

Here's to the next 40 years of C++!