What the tf2 community considers an “update” is the updates with names.
Every update of the last 9 years has been to celebrate a holiday or event and not actually a properly named update like Gun Mettle, Meet Your Match, Sniper vs Spy, Jungle Inferno, etc etc.
Even checking thr history page on the website you can see that its just “Halloween” a bunch of times and then finally jungle inferno back in 2017: https://www.teamfortress.com/history.php
What the tf2 community considers an “update” is the updates with names.
Every update of the last 9 years has been to celebrate a holiday or event and not actually a properly named update like Gun Mettle, Meet Your Match, Sniper vs Spy, Jungle Inferno, etc etc.
Even checking thr history page on the website you can see that its just “Halloween” a bunch of times and then finally jungle inferno back in 2017: https://www.teamfortress.com/history.php