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OpenJul 31, 2026
Due by September 28, 2026
•Last updated 11% complete
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Fix compiler plugin losing generic upper-bound (
T : Geo) after DataFrame transformationsbugSomething isn't workingSomething isn't workingCompiler pluginAnything related to the DataFrame Compiler PluginAnything related to the DataFrame Compiler PluginStatus: Open.#905 In Kotlin/dataframe;Add Kotlin Toolchain example project
examplesSomething related to the examplesSomething related to the examplesStatus: Open.#1686 In Kotlin/dataframe;Remove https://raw.githubusercontent.com/Kotlin/dataframe/refs/heads/master/data/jetbrains%20repositories.csv
testsSomething related to the JUnit tests, integration tests or testing infrastructureSomething related to the JUnit tests, integration tests or testing infrastructureStatus: Open.#1933 In Kotlin/dataframe;Improve discoverability and completeness of aggregation/statistics documentation
documentationImprovements or additions to documentation (not KDocs)Improvements or additions to documentation (not KDocs)Status: Open.#210 In Kotlin/dataframe;Clarify prev() usage in fillNA.with and document newValue for forward-fill
documentationImprovements or additions to documentation (not KDocs)Improvements or additions to documentation (not KDocs)Status: Open.#523 In Kotlin/dataframe;Clarify extension-properties requirements on access/reference documentation pages
documentationImprovements or additions to documentation (not KDocs)Improvements or additions to documentation (not KDocs)Status: Open.#1934 In Kotlin/dataframe;Verify and document ApiLevels.kt type inference failure in samples
bugSomething isn't workingSomething isn't workingStatus: Open.#732 In Kotlin/dataframe;Add KDocs for groupBy and pivot APIs (core DSL + aggregation)
KDocsImprovements or additions to KDocsImprovements or additions to KDocsStatus: Open.#821 In Kotlin/dataframe;Add
groupByandpivottransformations KDocsKDocsImprovements or additions to KDocsImprovements or additions to KDocsStatus: Open.#1526 In Kotlin/dataframe;Add
groupByandpivotreducing KDocsKDocsImprovements or additions to KDocsImprovements or additions to KDocsStatus: Open.#1527 In Kotlin/dataframe;Add
groupByandpivotaggregations KDocsKDocsImprovements or additions to KDocsImprovements or additions to KDocsStatus: Open.#1528 In Kotlin/dataframe;Add
PivotGroupByKDocs (reducing and aggregation methods)KDocsImprovements or additions to KDocsImprovements or additions to KDocsStatus: Open.#1536 In Kotlin/dataframe;Move Writerside Korro samples out of
:coreand migrate them toSampleHelperexamplesSomething related to the examplesSomething related to the examplesinfrastructureGitHub actions, Gradle Scripts, Writerside, etc.GitHub actions, Gradle Scripts, Writerside, etc.Status: Open.#898 In Kotlin/dataframe;Support Parquet UTC timestamp vectors (
TimeStampXXXTZVector) in Arrow readerbugSomething isn't workingSomething isn't workingStatus: Open.#926 In Kotlin/dataframe;Kotlin Dataframe SQLite Integer cannot be cast to Boolean
bugSomething isn't workingSomething isn't workingdatabasesJDBC related issuesJDBC related issuesStatus: Open.#1013 In Kotlin/dataframe;Verify SQLite Boolean column handling in Gradle and Maven projects
bugSomething isn't workingSomething isn't workingdatabasesJDBC related issuesJDBC related issuesStatus: Open.#1935 In Kotlin/dataframe;Add column path KDoc.
KDocsImprovements or additions to KDocsImprovements or additions to KDocsStatus: Open.#1069 In Kotlin/dataframe;Add a migration guide from Pandas
documentationImprovements or additions to documentation (not KDocs)Improvements or additions to documentation (not KDocs)Status: Open.#1299 In Kotlin/dataframe;Update chapter "Kotlin for Data Analysis" on the Kotlin site
documentationImprovements or additions to documentation (not KDocs)Improvements or additions to documentation (not KDocs)Status: Open.#1344 In Kotlin/dataframe;Spark API example fails on Windows
bugSomething isn't workingSomething isn't workingdocumentationImprovements or additions to documentation (not KDocs)Improvements or additions to documentation (not KDocs)examplesSomething related to the examplesSomething related to the examplesStatus: Open.#1390 In Kotlin/dataframe;Add a User Guide for the Parquet file reading
documentationImprovements or additions to documentation (not KDocs)Improvements or additions to documentation (not KDocs)Status: Open.#1452 In Kotlin/dataframe;Add KDocs for function
CastandCastTodocumentationImprovements or additions to documentation (not KDocs)Improvements or additions to documentation (not KDocs)KDocsImprovements or additions to KDocsImprovements or additions to KDocstestsSomething related to the JUnit tests, integration tests or testing infrastructureSomething related to the JUnit tests, integration tests or testing infrastructureStatus: Open.#1472 In Kotlin/dataframe;Documentation for toDataFrame
documentationImprovements or additions to documentation (not KDocs)Improvements or additions to documentation (not KDocs)Status: Open.#1479 In Kotlin/dataframe;Update documentation for adjust schema
documentationImprovements or additions to documentation (not KDocs)Improvements or additions to documentation (not KDocs)Status: Open.#1507 In Kotlin/dataframe;Add column selector overload to
GroupBy.sortByKeyenhancementNew feature or requestNew feature or requestStatus: Open.#1523 In Kotlin/dataframe;