Issues

• Remediate eMudhra/emSign compromised CAs in H2O-3

  h2oai/h2o-3#16961 · Filter by author codyharris-h2o-ai opened on Oct 23, 2026

• Upgrade Jetty 12 to 12.0.38 and log4j2 to 2.25.5 to fix CVEs

  dependenciesSecurity Vulnerability
  h2oai/h2o-3#16949 · Filter by author rsujeevan opened on Aug 24, 2026 · 3.48.0.2
  1

  

• Route Gradle dependency resolution through the internal Nexus mirror

  Build
  h2oai/h2o-3#16939 · Filter by author valenad1 opened on Aug 13, 2026 · 3.48.0.2
  

• External H2O-on-YARN cluster startup fails under vcore contention: add fail-fast/diagnostics and CPU-sizing guidance

  h2oai/h2o-3#16924 · Filter by author romain-eymard opened on Aug 7, 2026

• Are monotone_constraints still restricted to gaussian/bernoulli/tweedie in XGBoost, or is the documentation out of date?

  h2oai/h2o-3#16881 · Filter by author eyalbarna opened on Jul 2, 2026
  1

• Frame CSV download fails on JDK 17 with ArrayIndexOutOfBoundsException in CStrChunk

  bug
  h2oai/h2o-3#16874 · Filter by author ziobizio81 opened on Jun 5, 2026

• Improve ADLS gen2 data import to support Workload Identity Management and Delta format

  enhancementfeature
  h2oai/h2o-3#16869 · Filter by author romain-eymard opened on Jun 4, 2026

• GBM quantile regression is much slower than gaussian/tweedie

  bug
  h2oai/h2o-3#16867 · Filter by author ganeevsingh18 opened on Jun 1, 2026

• GLM: linear constraints not enforced and NullPointerException when combining beta and linear constraints

  bug
  h2oai/h2o-3#16864 · Filter by author maurever opened on May 28, 2026
  

• GLM: remove_offset_effects with lambda search

  feature
  h2oai/h2o-3#16859 · Filter by author maurever opened on May 20, 2026 · 3.46.0.13
  

• Implement remove offset effect feature into other algorithms

  feature
  Feature

  h2oai/h2o-3#16851 · Filter by author maurever opened on May 7, 2026
  

• [DOCS]: H2O-3 user guide migration to Makersaurus style guide (tracking)

  docs
  h2oai/h2o-3#16839 · Filter by author shaunyogeshwaran opened on May 4, 2026
  

• Upgrade jetty from 9 to 12 to fix CVEs

  dependenciesSecurity Vulnerability
  h2oai/h2o-3#16810 · Filter by author valenad1 opened on Apr 21, 2026 · 3.48.0.2
  2

  

• Friedman's H statistic is not symmetrical in h2o

  bug
  h2oai/h2o-3#16806 · Filter by author tomasfryda opened on Apr 15, 2026

• Python sklearn wrappers: fix estimator_type/clone/tag compatibility for scikit-learn 1.6+

  bug
  h2oai/h2o-3#16779 · Filter by author zazulam opened on Mar 10, 2026

• Add Shape (Term) Plots for H2OGeneralizedAdditiveEstimator

  feature
  h2oai/h2o-3#16777 · Filter by author mathiasottenbreit opened on Mar 10, 2026

• h2o import function is not working when we have a _SUCCESS file present.

  bug
  h2oai/h2o-3#16768 · Filter by author iamakalia opened on Feb 24, 2026
  1

• Python: h2o and h2o_client packages conflict

  bug
  h2oai/h2o-3#16761 · Filter by author tomasfryda opened on Feb 12, 2026

• H statistic: Improve input validation

  featuregood_first_issue
  Feature

  h2oai/h2o-3#16759 · Filter by author maurever opened on Feb 4, 2026
  

• CVE justification or fix plan is needed otherwise image will be blocked by customer

  Security Vulnerability
  h2oai/h2o-3#16752 · Filter by author robinliubin opened on Jan 27, 2026
  

• Sorting issue on multinode

  bug
  h2oai/h2o-3#16751 · Filter by author tomasfryda opened on Jan 27, 2026
  

• AstTable has inconsistent column names

  bug
  h2oai/h2o-3#16743 · Filter by author tomasfryda opened on Jan 20, 2026

• H2OFrame.table() fails on multinode with force_col_types

  bug
  h2oai/h2o-3#16742 · Filter by author tomasfryda opened on Jan 19, 2026

• Target encoding: Add feature interaction with known domain test is sometimes failing

  bug
  h2oai/h2o-3#16719 · Filter by author tomasfryda opened on Dec 11, 2025 · 3.48.0.2
  

• DeepLearning: Cannot change parameter: '_distribution': AUTO -> multinomial

  bug
  h2oai/h2o-3#16717 · Filter by author tomasfryda opened on Dec 10, 2025 · 3.48.0.2