Discussions

• 1 You must be logged in to vote

  📣

  !!Warning!! CatBoost 1.2.10 release is the last with Apache Spark 3.2, 3.3 and 3.4 support, all releases after that will support only Apache Spark 3.5+

  Spark

  andrey-khropov announced Feb 20, 2026 in Announcements

  

  

  0
• 1 You must be logged in to vote

  🙏

  Memory leak in v1.2.8 on Linux ARM64 - When will v1.2.9 be released with the allocator fix?

  michachen asked Feb 3, 2026 in Q&A · Unanswered

  

  

  5
• 1 You must be logged in to vote

  📣

  1.2.10

  andrey-khropov announced Feb 19, 2026 in Announcements

  

  

  0
• 1 You must be logged in to vote

  📣

  1.2.9

  andrey-khropov announced Feb 19, 2026 in Announcements

  

  

  0
• 1 You must be logged in to vote

  🙏

  Custom logger is already specified. Specify more than one logger at same time is not thread safe

  need info

  Pedklin asked Jan 23, 2026 in Q&A · Unanswered

  

  

  3
• 1 You must be logged in to vote

  🙏

  Why does train_final_model=True give different results compared to manually retraining?

  asdsadsaasd12312132 asked Dec 26, 2025 in Q&A · Unanswered

  

  

  0
• 1 You must be logged in to vote

  🙏

  Class prediction using the C API

  inference C/C++ applier

  lnicola asked Dec 19, 2025 in Q&A · Unanswered

  

  

  1
• 1 You must be logged in to vote

  🙏

  Soft labels in multiclassification settings.

  github-abdellah-elyounsi asked Nov 5, 2025 in Q&A · Unanswered

  

  

  0
• 1 You must be logged in to vote

  📣

  CatBoost packages that are compatible with Python 3.14 are now available in Conda (except for Windows)

  python

  andrey-khropov announced Nov 3, 2025 in Announcements

  

  

  0
• 1 You must be logged in to vote

  🙏

  Pipeline Machine Learning using CatBoost

  KucingZeus asked Oct 24, 2025 in Q&A · Unanswered

  

  

  1
• 1 You must be logged in to vote

  🙏

  Is there something even more fast than native Catboost binary?

  performance

  ibobak asked Oct 22, 2025 in Q&A · Unanswered

  

  

  1
• 1 You must be logged in to vote

  🙏

  npm install issue with node-package

  Windows installation Node_js

  Leon3226 asked Oct 20, 2025 in Q&A · Unanswered

  

  

  1
• 1 You must be logged in to vote

  🙏

  installing issue

  R installation

  npj06 asked Jun 22, 2024 in Q&A · Unanswered

  

  

  

  

  7
• 3 You must be logged in to vote

  📣

  Automatic builds of CatBoost using GitHub actions

  build installation

  andrey-khropov announced Jul 14, 2024 in Announcements

  

  

  2
• 1 You must be logged in to vote

  📣

  Building with Ninja 1.13.0 is not supported on Windows

  build Windows

  andrey-khropov announced Jul 7, 2025 in Announcements

  

  

  1
• 0 You must be logged in to vote

  🙏

  Doest Catboost's uncertainty estimation support multiclass and multitarget classification?

  agzieba asked Aug 14, 2025 in Q&A · Unanswered

  

  

  0
• 1 You must be logged in to vote

  📣

  ⚠️ CatBoost 1.2.8 release is the last with Apache Spark 3.0 and 3.1 support, all releases after that will support only Apache Spark 3.2+

  Spark

  andrey-khropov announced Aug 10, 2025 in Announcements

  

  

  0
• 1 You must be logged in to vote

  📣

  CLA is no longer required for contributions

  andrey-khropov announced Aug 9, 2025 in Announcements

  

  

  0
• 1 You must be logged in to vote

  🙏

  Survival modeling

  chanansh asked Sep 6, 2024 in Q&A · Unanswered

  

  

  

  

  3
• 1 You must be logged in to vote

  🙏

  custom loss which depends on input features

  objectives and metrics

  chanansh asked Apr 27, 2025 in Q&A · Unanswered

  

  

  1
• 1 You must be logged in to vote

  🙏

  Open source user-defined loss function repository

  objectives and metrics

  EvanZ asked May 14, 2025 in Q&A · Unanswered

  

  

  0
• 0 You must be logged in to vote

  📣

  1.2.8

  github-actions bot announced Apr 13, 2025 in Announcements

  0
• 2 You must be logged in to vote

  📣

  Automatic CI builds and tests in GitHub actions also run on Linux aarch64 and macOS arm64 platforms now

  build Linux macOS tests

  andrey-khropov announced Mar 3, 2025 in Announcements

  

  

  0
• 1 You must be logged in to vote

  🙏

  Why does leaf value in plot tree is related to learning rate?

  ccylance asked Apr 10, 2024 in Q&A · Unanswered

  

  

  1
• 1 You must be logged in to vote

  💬

  error "has dtype 'category' but is not in cat_features list"

  need info

  tom-dwyer started Dec 23, 2024 in General

  

  

  2