[thelittlenag]

I'm old enough to recall when boost first came out, and when it matured into a very nice library. What's happened in the last 15 years that boost is no longer something I would want to reach for?

[Night_Thastus]

C++11 through 17 negated a lot of its usefulness - the standard library does a lot of what Boost originally offered.

Alternative libraries like QT are more coherent and better thought out.

[fluoridation]

Qt is... fine... as long as you're willing to commit and use only Qt instead of the standard library. It's from before the STL came out, so the two don't mesh together really at all.

[jcelerier]

I use boost and Qt but completely disagree. Every new version of boost brings extremely useful libraries that will never be in std: boost.pfr was a complete game changer, boost.mp11 ended the metaprogramming framework wars, there's also the recently added support for MQTT, SQL, etc. Boost.Beast is now the standard http and websocket client/server in c++. Boost.json has a simple API and is much more performant than nlohmann. Etc etc.