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Issue with latest CCCL thrust reduce.

Status: Open.

#12172 In dmlc/xgboost;

· trivialfis opened on Apr 18, 2026

[CI] Slim down test suites in linux-amd64-cpu and linux-amd64-mgpu

Status: Open.

#12154 In dmlc/xgboost;

· hcho3 opened on Apr 10, 2026

[CI] Require manual approval to run certain CI workflows

Status: Open.

#12153 In dmlc/xgboost;

· hcho3 opened on Apr 10, 2026

[CI] Analysis of recent increase in CI costs

Status: Open.

#12152 In dmlc/xgboost;

· hcho3 opened on Apr 10, 2026

[jvm-packages] XGBoost4j-Spark fails on Spark 4.0 with NoSuchMethodError in Param constructor

Status: Open.

#12135 In dmlc/xgboost;

· wbo4958 opened on Apr 1, 2026

RFC: Revisit Default Hyperparameters for Tree Learning in XGBoost

Status: Open.

#12131 In dmlc/xgboost;

· RAMitchell opened on Mar 26, 2026

RFC: Honest categorical splitting for partition-based categorical features

Status: Open.

#12130 In dmlc/xgboost;

· RAMitchell opened on Mar 26, 2026

[epic] Use custom CUDA stream for the entire codebase.

Status: Open.

#12122 In dmlc/xgboost;

· trivialfis opened on Mar 23, 2026

GPU memory usage when only using CPU.

Status: Open.

#12116 In dmlc/xgboost;

· oOTWK opened on Mar 22, 2026

Help in forecasting

status: need update

Status: Open.

#12077 In dmlc/xgboost;

· Akshayksagar opened on Mar 12, 2026

[doc] Enhance documentation for distributed training.

Status: Open.

#12045 In dmlc/xgboost;

· trivialfis opened on Feb 26, 2026

Building XGBoost 3.2 fails when CUDA < 12.9

status: need update

Status: Open.

#12024 In dmlc/xgboost;

· abdouskamel opened on Feb 16, 2026