First look at the examples, File>Examples>Examples from Custom Libraries>IRremote, before starting a new discussion!

[ArminJo]

Discussions with "This is my code, it does not work" will be deleted immediately if no example is tested before.

It is always a good start to first have a look at the examples provided by this library. Start with the Simple* and the *Demo examples.
Examples for this library are available in the Arduino IDE under File > Examples > Examples from Custom Libraries > IRremote > ...
Examples are also available at Github: https://github.com/Arduino-IRremote/Arduino-IRremote/tree/master/examples

[munkerench]

As of esp32\3.0.0-alpha2\cores\esp32/Arduino.h: most of the examples don't compile.

[ArminJo]

I made a new discussion out of your comment. please upvote it.

[munkerench]

Thanks, Any plans to update the library?

[ArminJo]

No, no plan so far