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[WIP] next release (3.0.0) #3293
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Description
This is to continue #3071, we have several new items that are not finished.
I plan to release the 3.0.0 by the end of Sep.
PRs:
- [R-package] added support for first_metric_only (fixes #2368) #2912
- Fix add features #2754
- Add CTR conversion for categorical features (with bundling support) #2463
- Less restrictive monotone constraints #2305 (last remained part)
New Features
- GPU support on ppc64le #2937
- Unify out results of LGBM_BoosterDumpModel and LGBM_BoosterSaveModel #2604
- Add some features to R-package that are already in C API and Python package (Add support for saving weight values of a node in the R-package #2281, [R-package] exclude training data from being checked for early stopping #2472, Refit method for R-package #2369, [R-package] Add support for non-ASCII feature names #2983)
- CRAN release of course [R-Package] CRAN issues #629
Fixes (may is not included in 3.0.0):
- All known GPU bugs (lightgbm.basic.LightGBMError: Bug in GPU histogram! split 11937: 12, smaller_leaf: 10245, larger_leaf: 1704 #2793, [gpu] /root/repo/LightGBM/compute/include/boost/compute/utility/wait_list.hpp:166: void boost::compute::wait_list::wait() const: Assertion `clWaitForEvents(size(), get_event_ptr()) == 0' failed. Aborted (core dumped) #2648, OpenCL Bus error #2550, GPU build fails for lightgbm target #2126, Training on GPU fails (OSError: exception: access violation) #1717, BUG in GPU histogram #1003)
- MMLSpark issues([mmlspark] Memory Corruption #2392, JVM crash caused by LGBM_DatasetCreateFromCSRSpark #2363)
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