What's Changed
* [2.4] tf dataset setup and teardown by SYangster in https://github.com/NVIDIA/NVFlare/pull/2365
* [2.4] Update outdated links by YuanTingHsieh in https://github.com/NVIDIA/NVFlare/pull/2367
* [2.4] Fix nemo example link by holgerroth in https://github.com/NVIDIA/NVFlare/pull/2374
* [2.4] Fix NEMO links by YuanTingHsieh in https://github.com/NVIDIA/NVFlare/pull/2384
* [2.4] Update license headers by YuanTingHsieh in https://github.com/NVIDIA/NVFlare/pull/2386
* [2.4] Add xgboost histogram_based_v2 by YuanTingHsieh in https://github.com/NVIDIA/NVFlare/pull/2382
* [2.4] Clean up file pipe by YuanTingHsieh in https://github.com/NVIDIA/NVFlare/pull/2391
* [2.4] Added ReliableMessage by nvidianz in https://github.com/NVIDIA/NVFlare/pull/2394
* [2.4] Add xgboost example, unit tests, integration tests by YuanTingHsieh in https://github.com/NVIDIA/NVFlare/pull/2392
* [2.4] Add xgboost metrics tracking cb by YuanTingHsieh in https://github.com/NVIDIA/NVFlare/pull/2381
**Full Changelog**: https://github.com/NVIDIA/NVFlare/compare/2.4.0...2.4.1rc1