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Eclipse 4diac Weekly #111

Update on what development happened across the Eclipse 4diac project in the week from October 30 to November 6, 2026.

This week improves library validation, Structured Text comment preservation, and the Bulk Query Editor. 4diac FORTE introduces generic multi-channel data latches, improves runtime robustness, and removes obsolete I/O modules.

Enhancements and Fixes in 4diac IDE

  • Library Management

    • Extended library manifest validation
      • Added checks for library names, version information, version ranges, and include/exclude patterns
      • Improved error reporting for missing or invalid version declarations
    • Improved library package downloading
      • Unified discovery of library downloader providers
      • Fixed stale library cache entries, particularly on macOS
    • Improved library element hashing by excluding source comments from hash calculations

  • Structured Text & Type Management

    • Extended the type model and ST parser to preserve Structured Text source elements and comments during import/export
    • Improved adapter attribute handling
      • Preserved attributes across import/export and save/reload cycles
      • Ensured consistent editing in interface editors and FB networks

  • Bulk Query Editor

    • Added indicators for hidden query nodes
    • Fixed query viewer updates when opening .query files
    • Extended the query model in preparation for constraint declarations

  • Graphical Editors & Usability

    • Fixed opening mapped subapplications and composite FB instances from resources
    • Improved breadcrumb synchronization to prevent incorrect model references and potential loss of changes
    • Fixed resource deletion issues after editors had been opened
    • Improved handling of nested containers

  • Deployment & Maintenance

    • Improved OPC UA deployment client configuration to support higher message limits
    • Continued migrating IDE components to Eclipse Platform’s ILog
    • Continued preparing user-facing strings for localization
    • Removed obsolete dependencies and simplified platform configuration

Enhancements and Fixes in 4diac FORTE

  • Function Blocks

    • Added the generic GEN_E_D_FF_ANY implementation for multi-channel data latches
      • Supports arbitrary and mixed data types
      • Generates an output event when at least one input differs from its latched value
    • Fixed missing MIN and MAX dependencies in LIMIT

  • I/O Support

    • Improved EtherCAT device handle management
    • Fixed process interface deinitialization to reliably report the not-ready state
    • Cleaned up the I/O interface infrastructure
    • Removed obsolete hardware support modules: Conmeleon C1, I2C Dev, Lego Mindstorms EV3, MLPI, Odroid, PiFace, Raspberry SPS, and uMIC
    • Removed unused SysFS I/O support classes

  • Runtime & Communication

    • Fixed default initialization of derived data type variants with affected Clang versions
    • Fixed UDP listen channels retaining outdated connection states
    • Corrected logging format issues in communication and replay components

Many thanks to all contributors for their work and their feedback!

Cheers,
The Eclipse 4diac Team

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