NEWS

jgd 0.2.1 (2026-10-08)

No user-facing changes.

Fixed a CRAN (MKL) check error caused by a race condition in the mock server tests. (#76)

No user-facing changes.

The jgd repo has been migrated to the REditorSupport GitHub organization. The maintainers remain the same, but the package URL and bug-report links have been updated accordingly. The migration reflects our tight integration with the (just released) v3.0.0 version of the vscode-R extension. We emphasize that jgd remains frontend-agnostic and encourage integration with other IDEs and R frontends.

Fixed potential GC protection issues in the C internals (flagged by rchk) by tightening PROTECT/UNPROTECT handling around allocations in replay_snapshot and C_jgd_discover. (#61)

Improved visibility of protocol specification. (#58)
Minor documentation updates reflecting the fact that our VS Code functionality has been absorbed into the main/upstream VS Code R extension. (https://github.com/REditorSupport/vscode-R/pull/1706).

Initial CRAN release.

C-based graphics device that serializes R plotting operations to JSON (JSONL) and streams them over a local connection to an external renderer.
Transport support for Unix domain sockets (Linux/macOS), Windows named pipes, and TCP.
Automatic server discovery via platform-specific cache directory.
Remote font metrics: the device queries the renderer for string widths and glyph metrics, enabling accurate text layout without local font dependencies.
Plot history with resize replay: snapshots are captured per page so historical plots can be re-rendered at new dimensions.
Experimental extension API (jgd_ext(), jgd_frame_ext(), jgd_begin_group()) for injecting renderer-specific properties beyond R's standard graphics parameters.
Bundled cJSON (v1.7.19) for zero external dependencies.