[2026-02-02] Libs and Engine Team Demo Day

[jdunkerley]

James

• JSON view for Google Sheets JSON view for Google Sheets #14655
• Fix rounding issue for Snowflake Fix rounding issue for Snowflake #14661
• Google Sheet value reading Google Sheet value reading #14670
• Refresh CODEOWNERS Refresh CODEOWNERS #14684
• Tableau Dual JVM tweaks Tableau Dual JVM tweaks #14631
• Moving Problem Aggregation code more to Java Moving Problem Aggregation code more to Java #14711
• Handle Tableau errors inside the JVM Handle Tableau errors inside the JVM #14707

Greg

• Add Date_Time_Column.to_utc Add Date_Time_Column.to_utc #14649
• Default Data.fetch auto-detect to plain text or XML in certain cases Default Data.fetch auto-detect to plain text or XML in certain cases #14648
• Fix Date_Time extended error test failure Fix Date_Time extended error test failure #14660
• Restore proper XHTML test file Restore proper XHTML test file #14663
• Improve Microsoft 365 credential refresh docs Improve Microsoft 365 credential refresh docs #14664
• Date_Column.first_of_week for in-mem and db Date_Column.first_of_week for in-mem and db #14674

Ad

• Bump redshiftVersion Bump redshiftVersion #14685
• Make test ignore order Make test ignore order #14698
• First set of changes to restore Redshift functionality First set of changes to restore Redshift functionality #14699
• Next set of Redshift changes Next set of Redshift changes #14708
• Redshift fixes Redshift fixes #14709
• Wip/adr/redshift fixes Wip/adr/redshift fixes #14715

Hubert

• Generate detailed message on notarytool failure Generate detailed message on notarytool failure #14644
• Cache all arguments Cache all arguments #13813
• Revert changes that enable multithreaded access to EnsoPolyglotJava Revert changes that enable multithreaded access to EnsoPolyglotJava #14687
• Reduce locking in HostClassLoader Reduce locking in HostClassLoader #13807
• Runtime Analysis replacing static Dataflow analysis Runtime Analysis replacing static Dataflow analysis #14633

Pavel

• Refactor Warning IRs to Java Refactor Warning IRs to Java #14647
• Make Type interop more consistent Make Type interop more consistent #14401
• Move Standard.Image out of distribution Move Standard.Image out of distribution #14553
• Refactor Name Scala IR to Java Refactor Name Scala IR to Java #14244
• Respect Warning.to_text method override Respect Warning.to_text method override #14642
• Remove Akirathan from CODEOWNERS Remove Akirathan from CODEOWNERS #14682
• Warning.to_text delegates to value Warning.to_text delegates to value #14681
• Refactor Expression Scala IR to Java Refactor Expression Scala IR to Java #14673

Dmitrii

• Replace language server WebSocket connection with Ydoc Replace language server WebSocket connection with Ydoc #14438

[JaroslavTulach]

Dual JVM & Arrow Storages

• Demo to follow: Show how to throw/return Error in Java and process it in Enso #14622
  • James then Handle Tableau errors inside the JVM #14707
• Arrow storage for Time_Of_Day #14646
• Test DateTimeStorage off-heap data transfer #14688
• Storing LocalDate in off-heap IntBuffer #14652

Visualizations and Dataflow Analysis

• speeds sbt runtime-benchmarks/benchOnly ManyLocalVarsBenchmark & co. by 20%
• decreases size of Standard.Base cache Base.bindings file by 40%
• overall size of .bindings caches gets down to ~62MB now
• Rewriting ProcessingPass into Java #14692
• Rewriting DependencyInfo and DependencyMapping into Java #14703
• Make DependencyInfo.find the central point to access dataflow analysis information #14713
• Perform DataflowAnalysis only when needed #14697

Cleaning up APIs

• Removing catch_primitive - Removing catch_primitive from the API #14676
• fixing broken invocation scheme for builtin's constructors by removing them
  • Even less builtin types #14653
• Standard.Test API cleanup
  • run_with_and_without_output is too specific to be a general API #14600
  • Moving Faker out of Standard.Test API #14701

Code Quality

• Removing builtin methods from Any #12155
• Transfer stack trace elements from the other JVM when rethrowing #14666
• Debug.pretty doesn't seem to be really needed #14686
• rewriting from Scala to Java
  • Removing more Scala classes from runtime-parser module #14690
  • Moving Implicits away from runtime-parser project #14714
  • Rewriting DependencyInfo and DependencyMapping into Java #14703
• Encapsulating currentSize in ValidityBuffer #14665