0.8.0 - 2026-08-04

Release Notes

This release focuses on checker precision, higher-order R semantics, and editor
correctness. It is a minor release because diagnostic output and inferred
warning sets intentionally change, and JSON diagnostics gain a new field.

Checker and type inference

• Higher-order calls such as Map(), mapply(), vapply(), Filter(), and
  purrr map-family functions now bind callbacks, sources, templates, and
  controls by R formal-argument matching rather than raw call position. Named,
  reordered, and partially matched arguments therefore infer consistently.
• Single-bracket vector and list subsetting derives result length from logical
  and numeric indices when it is provable. Literal negative exclusions retain
  exact length for known inputs, while transformed subsets no longer carry
  stale source-column schemas.
• Recursive parameter defaults (RY098) distinguish guaranteed forcing from
  quoting, conditional paths, short-circuit evaluation, loop reachability, and
  replacement assignments. This removes false positives while preserving
  provable recursion diagnostics.
• Types merged after one-arm if reassignment retain the parent/branch union
  instead of becoming opaque, and repeated checks on one Checker no longer
  accumulate diagnostics from previous files.

Pipes, suppressions, and output

• Native-pipe extraction placeholders (R >= 4.3), such as mtcars |> _$mpg
  and df |> _[["col"]], resolve to the piped value. Magrittr substitutes every
  . occurrence, including nested calls, while . and _ remain specific to
  their respective pipe operators. Invalid cross-operator placeholders now
  report RY010. Thanks to @tjmahr for reporting
  the placeholder scope issue in #27.
• Standalone # ry: ignore directives target the next actual code line,
  skipping blank and comment-only lines without mistaking # inside strings
  for a directive. Rule lists stop at their closing ].
• JSON diagnostics now include the diagnostic confidence tier. Severity
  overrides preserve confidence, so --min-confidence behaves consistently.

Editor and language server

• Cached parses are paired atomically with the exact source text they came
  from, preventing concurrent edits from mixing stale text with a newer AST.
• LSP byte offsets and columns now correctly handle UTF-16, non-ASCII
  identifiers, CRLF files, invalid/out-of-range positions, completion and
  signature-help cursors, and code-action edits.
• Rename validates R identifiers (including Unicode and reserved-word rules),
  and loop-variable navigation/rename highlights only the binding identifier.
• Closing a document refreshes cross-file diagnostics in remaining documents.
  Completion and signature help use the embedded base typeshed rather than a
  separate hand-maintained signature table.

Typeshed and package handling

• Updated the embedded r-typeshed snapshot to d4453457 (schema 0.0.4),
  including corrected base and rlang metadata, typed rlang missing-value
  constants, and new vctrs function metadata.
• Recursive package scans skip symlinks and unclassifiable directory entries,
  preventing filesystem loops. .Rbuildignore handling now distinguishes a
  real trailing $ anchor from escaped dollar literals.
• R string decoding accepts R's variable-width \u (1-4 hex digits) and
  \U (1-8 hex digits) forms.

Install ry-cli 0.8.0

Install prebuilt binaries via shell script

curl --proto '=https' --tlsv1.2 -LsSf https://github.com/sims1253/ry/releases/download/v0.8.0/ry-cli-installer.sh | sh

Install prebuilt binaries via powershell script

powershell -ExecutionPolicy Bypass -c "irm https://github.com/sims1253/ry/releases/download/v0.8.0/ry-cli-installer.ps1 | iex"

Download ry-cli 0.8.0

File	Platform	Checksum
ry-cli-aarch64-apple-darwin.tar.gz	Apple Silicon macOS	checksum
ry-cli-x86_64-apple-darwin.tar.gz	Intel macOS	checksum
ry-cli-aarch64-pc-windows-msvc.zip	ARM64 Windows	checksum
ry-cli-x86_64-pc-windows-msvc.zip	x64 Windows	checksum
ry-cli-aarch64-unknown-linux-gnu.tar.gz	ARM64 Linux	checksum
ry-cli-x86_64-unknown-linux-gnu.tar.gz	x64 Linux	checksum