Skip to contents

Changelog

Source: NEWS.md

languageserver 0.3.20

CRAN release: 2026-09-24

  • Run full-document, range, and multiple-range formatting in a lazy, cancellable background worker so other editor requests remain responsive during formatting (#764, #251).
  • Stabilize diagnostics for Quarto and R Markdown documents by preserving source-specific settings, custom suppression markers, and exclusions when linting extracted code, while normalizing paths on Windows (#763, #726).
  • Clear published diagnostics and cancel queued or running lint tasks when diagnostics are disabled (#763).
  • Strictly enforce mutual exclusivity of result and error in JSON-RPC responses per the JSON-RPC 2.0 specification, preventing strict clients like Neovim from disconnecting on errors (#768, #766).
  • Prevent undefined behavior in reference_resolve_local_c() by guarding qsort and avoiding zero-length allocations when definitions or occurrences are empty (#767).
  • Speed up test-coverage workflow by utilizing 4 CPUs, path filtering, and 4-way balanced test sharding (#769).

Closed issues:

  • Ensure error and result are mutually exclusive in JSON-RPC responses (#766)
  • Quarto / R Markdown / new file buffers ignoring nested .lintr config and diagnostics not clearing when disabled (#726)
  • Non-blocking formatting: run explicit formatting in background (#251)

Merged pull requests:

  • Speed up test-coverage workflow with 4 CPUs, sharding, and path filtering (#769)
  • Ensure error and result are mutually exclusive in JSON-RPC responses (#768)
  • Avoid passing null or zero-length buffers to qsort in reference resolution (#767)
  • Run explicit formatting in the background (#764)
  • Stabilize diagnostics (#763)

languageserver 0.3.19

CRAN release: 2026-09-13

  • Add a shared Quarto/R Markdown region model with .qmd and Quarto language ID detection, independent R-cell parsing, nested fenced-div folding, and provider isolation from YAML, Markdown, cell options, and non-R engines.
  • Index complete R projects with bounded, cached shallow summaries while fully parsing only packages, open files, and static source() closures. Keep unrelated standalone scripts isolated in semantic editor features.
  • Retire persistent callr workers when cancelling tasks so a late interrupt cannot leak into the next diagnostics run.
  • Prevent a dead persistent worker from crashing the language server when a task is dispatched to its closed command pipe.
  • Keep task callback and polling failures from terminating the server or permanently consuming scheduler capacity.
  • Scale persistent workers to queued demand and make task-manager shutdown best-effort and idempotent.
  • Add preferred quick fixes for common lintr diagnostics and a conflict-aware source.fixAll action, while making multi-line nolint actions apply to every affected line.
  • Add previewable refactor.extract actions for variables and functions with local free-variable analysis, plus a conservative refactor.inline action for single-use local variables.
  • Add LSP 3.18 capability updates, including multiple-range formatting, explicit UTF-16 position encoding, and the semantic token label type.
  • Add R-focused code lenses for function call counts, linked editing between roxygen parameters and function formals, debugger inline values, and parameter-name inlay hints.
  • Make parameter-name inlay hints conservative by default and open VS Code’s semantic call hierarchy when a function call-count lens is clicked.
  • Show function signatures and argument documentation in parameter-name inlay hint tooltips, consistent with function-argument hovers.
  • Use incremental document synchronization, reject stale background results, cache workspace routing, and reduce event-loop latency for more responsive editing.
  • Pre-index document completion candidates during background parsing with a native parse-tree traversal, bound broad result sets before constructing completion items, and use deterministic native top-N selection.
  • Make on-type formatting robust for incomplete R expressions by using parse-validated sentinel completion with a conservative indentation fallback.
  • Precompute semantic tokens and symbol/call indexes in parse workers, support semantic-token deltas, and make range providers honor requested ranges.
  • Prioritize and supersede background work by document version, start persistent workers asynchronously, keep warm workers available, and defer diagnostics until the current parse is ready.
  • Bound parse and diagnostics caches by memory and reuse indexed references for rename, highlights, call hierarchy, and code-lens call counts.
  • Track the last successful ordered package request for each document, avoiding redundant callr subprocesses after transient parse errors or representation changes while preserving package attachment order (#754).
  • Classify function assignment names as function semantic tokens and fix semantic token regression assertions (#756, #757).
  • Prefer STR_CONST in xdoc_find_token() at ambiguous punctuation/string boundaries (#739, #740).
  • Update documentation for Emacs Eglot setup and libuv system dependency (#732, #733).
  • Reduce provider and typing latency with native C indexes, cached provider and namespace metadata, and responsive completion during typing (#758).
  • Safely handle namespaced calls in argument default values within extract_default_values() (#759).

Closed issues:

  • Package resolution (resolve_attached_packages) spawns fresh R subprocess on keystrokes in Quarto/R Markdown documents (#754)
  • xdoc_find_token resolves to adjacent punctuation instead of string literal at unspaced quote (#739)
  • Type hierarchy supertypes and subtypes return empty for S4 / RefClass (#738)
  • diagnose_file: empty path crash and .lintr config never applied when using text= argument (#722)
  • Segfault with invalid permissions in Neovim context (#721)
  • Support directory-nested R packages (monorepo support) (#619)
  • Document installation for Emacs (#354)
  • Add extract and inline refactorings (#94)
  • Extend completion with source by recursive parsing (#20)

Merged pull requests:

  • Protect extract_default_values for namespaced calls (#759)
  • Reduce provider and typing latency with native indexes and serialization (#758)
  • Fix semantic token regression test assertion and update semantic (#757)
  • Classify function assignment names as function semantic tokens (#756)
  • Avoid redundant package resolution (#755)
  • Add extract and inline refactorings (#753)
  • Add Quarto and R Markdown region model (#752)
  • Add scalable project-wide R indexing (#751)
  • Improve task manager reliability (#750)
  • Fix broken pipe crash in task sessions (#749)
  • Fix diagnostics cancellation interrupt race (#748)
  • Raise test coverage above 95% (#747)
  • Improve code actions (#746)
  • Improve language server responsiveness (#745)
  • Improve inlay hint argument tooltips (#744)
  • Improve completion responsiveness (#743)
  • Make on-type formatting robust for incomplete expressions (#742)
  • Update LSP 3.18 providers and improve responsiveness (#741)
  • xdoc_find_token() now prefers STR_CONST at ambiguous punctuation/string boundaries (#740)
  • Bump actions/cache from 5 to 6 (#737)
  • Bump actions/checkout from 6 to 7 (#736)
  • Bump codecov/codecov-action from 6 to 7 (#734)
  • Added emacs eglot setup instructions (#733)
  • Added missing libuv dependency to README.md (#732)

languageserver 0.3.18

CRAN release: 2026-05-02

Closed issues:

  • Failed to run diagnostics: ! in callr subprocess. Caused by error in call[[1L]] (#723)

Merged pull requests:

  • fix: protect SEXP objects in C code (#728)
  • feat: add stringr to Suggests for roxygen2 8.0.0 (#729)
  • Bump codecov/codecov-action from 5 to 6 (#724)
  • fix: avoid rlang formatting crash in callr subprocess (#723) (#725)
  • Multi root support (#719)
  • test: enable parallel execution and streamline CI workflows (#720)

languageserver 0.3.17

CRAN release: 2026-03-07

Closed issues:

  • Support semanticTokens (#692)
  • lintr 3.3.0-1 changed default parse_settings to FALSE for lint() (#709)
  • LanguageClient-neovim is abandoned (#701)
  • languageserver does not respect lintr file (#700)
  • languageserver warns about undefined global functions even when they are imported via NAMESPACE (#698)
  • Semantic highlighting appears incomplete (#694)
  • Completions without {library}:: (#686)
  • Disabling indentation warnings, can’t disable lintr warnings (#674)

Merged pull requests:

  • Ignore didSave without didOpen (#714)
  • Implement semantic tokens support (#692)
  • Implement type hierarchy provider (#703)
  • explicit parse_settings = TRUE (#706)
  • Update comment folding to ignore # %% code chunks (#644)
  • Add nline_to_break_succession as option (#643)
  • Check path in diagnose_file (#654)
  • Add devcontainer configs (#655, #656)
  • Use built-in LSP instead of abandoned LanguageClient-neovim (#702)
  • Fix covr readRDS error by gracefully closing background sessions
  • Fix test failure: only send shutdown request if language server is alive
  • Support class members for document symbols
  • Performance improvements with C implementation of semantic tokens and encoding

languageserver 0.3.16

CRAN release: 2023-08-18

Closed issues:

  • Error in Neovim: “attempt to compare string with number” (#609)
  • On-type formatter adds extra indentations after pipes (#607)
  • Add nline_to_break_succession option to control section collapsing (#643)

Merged pull requests:

  • Handle vscode-notebook-cell in path_from_uri (#610)
  • Skip incomplete lines in on-type-formatting (#615)
  • Enable the folding of binary operations (#613)
  • make sure column is defined (#614)
  • Use code and codeDescription in diagnostic (#611)
  • Fix path_from_uri (#612)
  • Fix regex pattern to match chunk label after comma (#608)
  • Include pacman Suggests dependency in DESCRIPTION (#604)
  • Add link to R-Nova extension for Nova (#598)

languageserver 0.3.15

CRAN release: 2023-01-06

Closed issues: - package::function() autocompletion doesn’t include re-exported functions (#590) - Server failed to start probably due to hard-coded installation path ERROR (#579)

Merged pull requests:

  • Include all exports in namespace objects (#591)
  • Disable linters actions (#589)
  • Avoid emitting a negative activeSignature (#586)
  • fix CRAN check warnings (#583)
  • Ignore error on checking is.function of namespace objects (#582)

languageserver 0.3.14

CRAN release: 2022-10-16

Closed issues:

  • NA introduced into position when opening curly braces (#564)
  • html-to-markdown.lua error: attempt to call a nil value (#555)
  • R6Class finalize() method is public, but it should be private as of R6 2.4.0 (#551)

Merged pull requests:

  • Drop diagnostics on callback if disabled (#577)
  • Bump styfle/cancel-workflow-action from 0.10.1 to 0.11.0 (#576)
  • Bump styfle/cancel-workflow-action from 0.10.0 to 0.10.1 (#573)
  • Provide package symbols before lint in diagnostics (#568)
  • Support completion item labelDetails (#571)
  • Enable multiple-level fold section of R document like RStudio (#566)
  • fix NA introduced into position (#565)
  • Requires lintr 3.0.0 (#562)
  • Bump styfle/cancel-workflow-action from 0.9.1 to 0.10.0 (#560)
  • Use lua-filter when pandoc_version >= 2.11 (#556)
  • Update link to the lintr package (#554)
  • Use private finalizers for R6 classes (#553)

languageserver 0.3.13

CRAN release: 2022-05-24

Closed issues:

  • Language Server crashing sporadically (#368)
  • Why not set up r-universe? (#536)
  • Signature help not show up in if-else branch (#530)
  • Some of the tables of arguments are too complex to be represented by GFM (#533)
  • Rmd detection ignores front matter (#507)
  • Range formatting and onTypeFormatting are performed in Rmd non-code content (#224)
  • Respect document language specified from editor (#510)
  • “No newline at end of file” after formatting file in VS Code (#462)
  • completionItem/resolve result may not be null (#504)
  • Disabling linting has no effect (#497)

Merged pull requests:

  • R 4.2 supports Unicode on Windows (#549)
  • read may return -1 on error (#548)
  • R universe (#542)
  • do not pop the unbalance brackets in the current row (#541)
  • Update GItHub Actions version (#537)
  • Bump actions/upload-artifact from 1 to 3 (#540)
  • Bump styfle/cancel-workflow-action from 0.9.0 to 0.9.1 (#539)
  • Bump actions/cache from 2 to 3 (#538)
  • convert the table of arguments to the sections of arguments with Lua filter (#534, thanks @atusy))
  • Added an entry for BBEdit (#532)
  • Support arg completion for primitive functions (#526)
  • Check rmd scope in on type formatting (#525)
  • Respect document languageId (#511)
  • Document formatting ensures trailing empty line (#509)
  • Only call fs::path_abs with existing files (#506)
  • completionItem/resolve always returns completionItem (#505)
  • Unpublish diagnostics when disabled (#498)
  • add whitespace to NEWS.md (#490)

languageserver 0.3.12

CRAN release: 2021-10-19

Closed issues:

  • Documentation not working with R 4.1.1 (#468)
  • Clean up dependencies (#470)
  • Documentation for functions assigned with = differs from functions assigned with <- (#466)
  • Bug when hovering variables (#463)
  • Null workspace folder not working with untitled documents (#460)

Merged pull requests:

  • Add installation steps of OS-specific dependencies (#247)
  • Use internal get_help instead of repr (#469)
  • Remove desc from imports (#471)
  • Fix hover on function defined with EQ_ASSIGN (#467)
  • Fix several bugs (#464)
  • Fix handling null workspace folder and untitled document (#461)

languageserver 0.3.11

CRAN release: 2021-07-22

Closed issues:

  • documentation only loaded for packages named in a library() call, not with p_load() (#257)
  • Minimal {styler} version requirement (#457)
  • If load package via pacman::p_load(), the autocompletion will be not able to work well (#426)
  • If I wrap library call in suppressPackageStartUpLanguages, autocompletion won’t work (#451)
  • Handle workspace/didChangeWatchedFiles (#446)
  • Environment variable LANG (#435)
  • Support lambda as function (#427)
  • Support pipe operator in onTypeFormatting (#430)
  • Exclusions in .lintr not working (#282)
  • Packages not loaded prior to linting with coc-r-lsp (#238)
  • Provide diagnostics on non-installed packages (#80)

Merged pull requests:

  • Require styler >= 1.5.1 (#458)
  • Support unscoped functions and library functions (#452)
  • Handle workspace/didChangeWatchedFiles (#447)
  • Add code action to disable linters (#408)
  • Improve handling configuration settings (#439)
  • check if lintr is new enough (#437)
  • Use lint text if supported (#284)
  • output text as is (#436)
  • consolidate github action jobs (#434)
  • Lambda support (#428)
  • Use a function call as the completer in on-type-formatting (#431)
  • support trace in InitializeParams (#423)

languageserver 0.3.10

CRAN release: 2021-04-20

Closed issues:

  • definitionProvider should work with file path (#415)
  • Null value in documentation does not trigger signature (#417)
  • Improve completion performance (#412)
  • Completion not working before close parenthesis (#410)
  • Use styler::style_text(base_indention=) for styler > 1.4.0 (#400)
  • Segfault on incorrect coordinates (#395)
  • Case-insensitive and fuzzy match in completion (#401)
  • Non-interactive setup of persistent {R.cache} cache for {styler} (#402)
  • Document link should work with limited file extensions or file size (#391)
  • get_document_symbol_kind error (#390)
  • Support Call Hierarchy (#361)
  • [FR] Display promise / active-binding objects in the OUTLINE (#362)

Merged pull requests:

  • Definition provider works with file path (#416)
  • Fix null doc_string in signature (#418)
  • Faster completion (#413)
  • fix raw string detection (#411)
  • Use styler base_indention (#404)
  • support R 4.0 raw string search (#276)
  • fix a segfault issue (#407)
  • Remove symbols starting with ._ from namespace (#406)
  • Provide case-insensitive completion (#405)
  • Update README.md (#403)
  • fix missing whitespace (#399)
  • Limit link file size (#393)
  • Full testthat v3 compatibility (#394)
  • Make headers in help hover look prettier (#392)
  • Options completion (#389)
  • Improve hover for function docs (#387)
  • Implement Call Hierarchy provider (#373)
  • Remove ‘(’ from completion trigger chars (#374)
  • Improve token completion (#372)
  • Preserve argument order in argument completion (#370)
  • Add ‘(’ to completion trigger characters (#369)
  • Use empty string instead of NULL as default signature doc (#371)
  • Add hover to function symbol formals (#367)
  • Implement selectionRangeProvider (#366)
  • Recognize symbols created by delayedAssign / assign / makeActiveBinding (#364)
  • use expect_setequal() may fit better (#363)

languageserver 0.3.9

CRAN release: 2020-12-18

  • skip tests on solaris

languageserver 0.3.8

CRAN release: 2020-12-01

  • When closing a file, “Problems” should be removed (#348)
  • Implement renameProvider (#337)
  • Hover on symbol in a function with functional argument causes parse error (#345)
  • Hover on non-function symbol in other document should show definition and - documentation (#343)
  • Check if symbol on rhs of assignment in definition (#341)
  • Implement referencesProvider (#336)
  • Add comment of notice above temp code of definition (#353)
  • Implement renameProvider (#339)
  • Fix tests (#351)
  • Update coc help in README (#350)
  • Remove diagnostics of closed files in non-package workspace (#349)
  • Fix hover func arg (#346)
  • Fix hover on non-function symbol (#344)
  • Fix checking symbol on rhs of assignment expression (#342)
  • Implement referencesProvider (#338)
  • Do not load sysdata.rda (#347)
  • release v0.3.7 (#335)

languageserver 0.3.7

CRAN release: 2020-09-15

  • Local function support (#330)
  • Update xpaths to adapt to token change in parse data in R 4.0 (#328)
  • Exclude existing completion items in token_completion (#326)
  • Add token completion (#324)
  • Only provide imported completions without package (#323)
  • Improve folding (#317)
  • More robust rmd chunk pattern (#318)
  • Limit string length to provide color and link (#314)
  • Minor improvements (#312)
  • Improve xpath to work with cursor on token ending (#311)
  • Support folding ranges for comments (#309)
  • fix covr test (#310)
  • Not trigger on-type-formatting on comment line (#308)
  • Convert roxygen comments to documentation (#305)
  • Support all symbols in definitions (#295)
  • Use isf=FALSE (#303)
  • Support startup library specified in profile (#302)
  • Fix rmd chunk pattern (#297)
  • Try parsing string in link and color (#300)
  • Implement foldingRangeProvider (#294)
  • Check uri in diagnostics_callback (#292)
  • Fix for #283 - “unexpected ‘/’” on save (#291)
  • use mac.binary instead of mac.binary.el-capitan (#293)
  • Change dev version download script in the README (#287)
  • Use sortText in completions (#286)
  • Rmd chunk symbol (#280)
  • make sure the path is UTF-8 (#278)
  • make sure process is alive (#275)
  • Fix handling raw string in link and color (#274)
  • Indent all elements except braces in apply_initial_indention (#271)
  • Use old behavior if formatting scope < indention (#269)
  • Fix range formatting handling initial indentation (#268)
  • Use more conservative pool_size (#267)
  • add session pool for task manager (#265)

languageserver 0.3.6

CRAN release: 2020-05-25

  • Show error message when diagnostics failed
  • fix enclosed_by_quotes
  • fix a bug in returning NA locations
  • requires collections 0.3.0
  • Run tasks with delay to reduce CPU usage on input
  • Refine args (Merge 9fd102b)
  • respect NAMESPACE file

languageserver 0.3.5

CRAN release: 2020-03-22

  • Remove dependency on readr
  • Use stringi to replace stringr
  • Respect snippetSupport
  • Respect linter_file in diagnostics

languageserver 0.3.4

CRAN release: 2020-02-24

  • on-type-formatting
  • documentLinkProvider
  • textDocument/documentColor
  • use writeLines to write raw data in Windows
  • Support section/subsection in document symbols
  • make sure the output are UTF8
  • set O_BINARY for stdin/stdout
  • allows user to override ServerCapabilities
  • Incremental resolving packages
  • Disable lintr for temp files
  • and a lot of minor fixes and improvements

languageserver 0.3.3

CRAN release: 2020-01-08

  • xml based parsing which provides more information on hovering, definitions and completions
  • a bug fix in reading stdin
  • unicode support improvement
  • some internal refactoring

languageserver 0.3.2

CRAN release: 2019-10-26

  • read other header fields
  • require newer version of collections
  • allow colon to trigger completion
  • specify kind for non exported package objects
  • Only provide package exported objects at :: (#84)
  • run tests on github actions
  • implementation of scope completion using xpath
  • Allow user customizable formatting style
  • use readr’s read_lines and write_lines
  • use a better function name
  • Provide completion for language constants
  • bump lintr to 2.0.0

languageserver 0.3.1

CRAN release: 2019-09-27

  • Recursive parsing (#56)
  • improve way to check if process becomes orphan
  • unicode support

languageserver 0.3.0

CRAN release: 2019-09-09

  • added symbol definitions
  • added document and workspace symbols

languageserver 0.2.6

CRAN release: 2019-02-24

  • fix a bug in completion items
  • lower bound lintr to 1.0.3
  • fix a bug in desc_get_deps
  • better support vscode settings

languageserver 0.2.5

CRAN release: 2018-09-10

  • deprecate languageserver.default_linters

languageserver 0.2.4

CRAN release: 2018-08-27

  • require latest styler release
  • handle windows crlf
  • disable homedir config until lintr is released
  • concat multiple lines in signature
  • Allow package name to contain dots (e.g. data.table)
  • completing variables defined in document
  • support completions and function signatures from documents
  • improve worksync consistency
  • sync all R files of a package
  • load packages in Depends field

languageserver 0.2.3

CRAN release: 2018-06-16

  • ensure unicode documentation
  • use * as itemBullet for hover help
  • check if rootUri is NULL