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SocNetV v3.4 Released

Dimitris

SocNetV v3.4 Screenshot

SocNetV v3.4 released! 🎉

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. 🙏

Download SocNetV v3.4 from our Download page and let us know what you think!

Happy analyzing!
— The SocNetV Team