Written for SocNetV by Dimitris Kalamaras on 2026-03-23

We are happy to announce the release of SocNetV v3.4, the latest version of our cross-platform social network analysis and visualization software.

This release focuses on stability and correctness, with a comprehensive overhaul of progress/cancel handling across all computation paths, significant parser and layout fixes, and the completion of the IO/Parser architectural refactor started in v3.3.
🔍 What’s New in SocNetV v3.4?

⏹ Comprehensive Cancel support in progress dialogs (#52)

This has been one of the longest-standing issues in SocNetV. In v3.4, the Cancel button in progress dialogs now works correctly and consistently across all computation paths:

    Centrality and prestige computations
    Reachability and walks
    Matrix and report generation
    Layout algorithms (including Kamada-Kawai)
    Clique census and subgraph construction
    All random network generators (Erdős–Rényi, Small-World, Scale-Free, Regular, Lattice, Ring-Lattice)

📐 Force-directed layout fixes

    Fixed division-by-zero, NaN/Inf, and logic errors in the Kamada-Kawai layout (#198)
    Fixed Fruchterman-Reingold simmering temperature derivation from canvas size (#199)
    Faithful reimplementation of the Eades (1984) Spring Embedder (#207)
    Batched node position emissions in all force-directed layouts for smoother rendering (#205, #206)

📥 Parser and IO fixes

Many import/export edge cases resolved:

    Pajek *Matrix header parsing for relation labels (#188)
    Pajek multirelational export as *Matrix blocks (#184)
    Normalized quoted relation names in Pajek headers (#185)
    Inline GML node/edge block parsing (#186)
    Arc doubling when loading undirected DOT graphs (#187)
    Platform-dependent weighted=true from uninitialized variable in DOT parser (#189)
    Two-mode sociomatrix import now correctly handled in the parser (#15)

📊 Centrality fixes

    Fixed eigenvector centrality isolate reset and N==0 handling (#202)
    Fixed Information Centrality isolate handling and degenerate cases (#201)
    Fixed clustering coefficient computation for directed networks (#58)
    Fixed wrong weighted flag when switching relations (#82)

🏗 Completed IO/Parser refactor (WS4)

The architectural refactor of the IO/Parser layer, started in v3.3, is now complete:

    The monolithic parser.cpp (~5500 LOC) has been split into focused per-format modules: edgelist, adjacency, UCINET DL, DOT, GML, Pajek, GraphML
    An explicit IGraphParseSink mutation surface replaces the old Qt signal fan-out
    GUI and headless (socnetv-cli) loading paths now share an identical, deterministic mutation pipeline

🧪 Expanded regression harness

    New io_roundtrip kernel (schema v5) for IO/parser regression protection
    Many new golden comparison cases and small deterministic test networks
    New helper scripts: run_io_roundtrip_shipped_datasets.sh, run_golden_io_roundtrip.sh

🌐 i18n

    Added update_translations.sh script for maintainers
    Updated DE and ES translation files

🛠 Build and packaging

    Debian packaging switched to CMake build system
    RPM spec updated for CMake (Fedora, openSUSE, Mageia)
    CMake now generates .qm translation files via qt_add_lrelease

We’d like to thank our contributors and users for reporting issues, testing fixes, and helping SocNetV improve with every release. 🙏

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