xgboost v0.60 Release Notes

Release Date: 2016-07-29 // almost 6 years ago
  • ๐Ÿ”„ Changes

    • ๐Ÿ”– Version 0.5 is skipped due to major improvements in the core
    • ๐Ÿ”จ Major refactor of core library.
      • Goal: more flexible and modular code as a portable library.
      • Switch to use of c++11 standard code.
      • Random number generator defaults to std::mt19937.
      • Share the data loading pipeline and logging module from dmlc-core.
      • Enable registry pattern to allow optionally plugin of objective, metric, tree constructor, data loader.
      • Future plugin modules can be put into xgboost/plugin and register back to the library.
      • Remove most of the raw pointers to smart ptrs, for RAII safety.
    • โž• Add official option to approximate algorithm tree_method to parameter.
      • Change default behavior to switch to prefer faster algorithm.
      • User will get a message when approximate algorithm is chosen.
    • ๐Ÿ”„ Change library name to libxgboost.so
    • Backward compatiblity
      • The binary buffer file is not backward compatible with previous version.
      • The model file is backward compatible on 64 bit platforms.
    • โœ… The model file is compatible between 64/32 bit platforms(not yet tested).
    • ๐Ÿง External memory version and other advanced features will be exposed to R library as well on linux.
      • Previously some of the features are blocked due to C++11 and threading limits.
      • The windows version is still blocked due to Rtools do not support std::thread.
    • rabit and dmlc-core are maintained through git submodule
      • Anyone can open PR to update these dependencies now.
    • ๐Ÿ‘Œ Improvements
      • Rabit and xgboost libs are not thread-safe and use thread local PRNGs
      • This could fix some of the previous problem which runs xgboost on multiple threads.
    • ๐Ÿ“ฆ JVM Package
      • Enable xgboost4j for java and scala
      • XGBoost distributed now runs on Flink and Spark.
    • ๐Ÿ‘Œ Support model attributes listing for meta data.
    • ๐Ÿ‘Œ Support callback API
    • ๐Ÿ‘Œ Support new booster DART(dropout in tree boosting)
    • โž• Add CMake build system