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@github-actions github-actions released this 14 Oct 15:11
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v0.8.3
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Eulix Release Notes

Eulix v0.8.3

This release focuses on parser architecture, memory efficiency, call graph visualization, and developer tooling. The parser has been split into a reusable Rust library and a CLI interface, while a new spill-to-disk architecture significantly reduces peak memory usage on large codebases.

Parser Architecture

  • Split eulix_parser into two components:
    • libeulix — A Rust library for parsing and code analysis.
    • eulix_parser — The command-line interface built around the parser.
  • Introduced a new spill-to-disk architecture to process large codebases with significantly lower memory consumption.
  • Integrated rpmalloc as the memory allocator, requiring changes to the parser's build configuration and flags.

Performance & Memory Efficiency

Benchmarked against a 37-million-line codebase:

  • Peak RSS reduced from ~8 GB to ~3.5 GB — approximately a 56% reduction.
  • kb.json reduced to ~350 MB, down from ~670 MB in the previous release.
  • The new architecture makes large-scale code analysis more memory-efficient and reduces the resources required to process large repositories.

Call Graph & VizEulize

  • Updated call_graph.json serialization to store function tags directly alongside the graph data.
  • VizEulize can now consume these tags to group functions and improve graph exploration.
  • Improved VizEulize's ability to handle large JSON datasets, with support for files up to 500 MB in the browser.
  • Further visualization and graph explorer improvements.

Eulix CLI

  • Added an experimental MCP server (Beta) with an adaptive retrieval cascade.
  • Improved the terminal UI (TUI), including styling refinements and internal cleanup.
  • Additional CLI improvements and bug fixes.

Eulix LSP (Alpha)

Introduced eulix-lsp, a language server that exposes the libeulix knowledge base through the Language Server Protocol (LSP).

Supports C, C++, Go, Java, JavaScript, Python, Rust, and TypeScript, bringing code intelligence backed by Eulix's static analysis.

Features

  • Navigation: Go to definition, workspace-wide references, and call hierarchy.
  • Code intelligence: Hover information, prefix-based completion, and document outline.
  • Editor support: Semantic tokens, document highlights, and folding ranges.
  • Workspace tools: Workspace symbol search and file watching.
  • Diagnostics: Syntax issues, duplicate definitions, TODOs, and security notes.
  • Rename: Renames symbols in open buffers, refusing ambiguous workspace matches.

Limitations

  • No code actions, formatting, signature help, or type-resolved hover.
  • Semantic tokens are symbol-level rather than full lexical highlighting.
  • JSX and TSX are not supported.
  • Document highlights are limited to the current file.
  • Go-to-definition returns a single deterministic result.
  • Syntax diagnostics provide line-level information rather than precise error ranges.

The language server is currently in Alpha and relies on information extracted by libeulix rather than performing independent, full semantic analysis.

Build & Installation

  • Updated parser build commands and required build flags following the allocator integration.
  • Updated the Makefile, README, and installation documentation.
  • Relicensed the project under Apache-2.0.

Experimental Features

  • MCP Server (Beta): Enables MCP-compatible clients to access Eulix retrieval capabilities.
  • Eulix LSP (Alpha): Introduced early language server functionality.

What's Changed

  • Makefile, readme and install doc updated by @Nurysso in #71
  • eulix_parser v0.8.0 architecture changes & vizEulize graph explorer enhancements by @Nurysso in #73
  • eulix_cli v0.8.3 update, and style changes by @Nurysso in #74
  • parser build command changes by @Nurysso in #75
  • relicensed to Apache-2.0 by @Nurysso in #76
  • Alpha eulix_lsp, and libeulix v0.8.2 by @Nurysso in #77
  • feat(mcp): add MCP server with adaptive retrieval cascade (beta) by @Nurysso in #78
  • [Refactor]: Tui updated and lint fixes by @Nurysso in #79
  • Dev by @Nurysso in #80

Upgrade Notes

  • Build configuration: Update your parser build commands and flags to match the new rpmalloc integration.
  • Parser architecture: Use libeulix when integrating parsing and analysis into Rust applications; use eulix_parser for command-line workflows.
  • Call graph consumers: Update tools consuming call_graph.json to account for the revised format and embedded function tags.
  • MCP server: The MCP integration is currently in Beta and may undergo further changes.

Eulix v0.8.3 delivers a more scalable parsing architecture, lower memory requirements, smaller knowledge-base files, and improved graph visualization for large codebases.

Full Changelog: v0.8.2...v0.8.3

Contributors

Nurysso
Assets 13
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