OpenAI Codex's `rust-v0.158.0` release adds explicit transparent backgrounds for image gen

EXHIBIT 1690

Sep 28, 2026 05:25 UTC github openai/codex

OpenAI Codex's `rust-v0.158.0` release adds explicit transparent backgrounds for image generation, secure WebSocket connections with bearer tokens, and improves TUI copy-on-select functionality.

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openai codex just dropped rust-v0.158.0, now with transparent backgrounds for image gen! subtle but super useful for creative workflows.

secure websockets with bearer tokens and better copy/paste in the TUI? codex's latest rust update is bringing some solid developer experience improvements.

openai/codex release: rust-v0.158.0 name: 0.158.0 published: 2026-09-28T05:07:23Z url: https://github.com/openai/codex/releases/tag/rust-v0.158.0 ## New Features - Configure copy-on-select and right-click paste in the fullscreen TUI. Copied transcript selections now preserve Markdown formatting. (#47639, #47896, #48118) - Connect to MCP servers that require pre-registered OAuth client secrets, including through `codex mcp add --oauth-client-secret`. (#47891) - Secure direct exec-server WebSocket connections with bearer tokens, including connections configured through app-server. (#47601, #47648) - Image generation and editing can explicitly request transparent backgrounds, and edits now accept file-backed conversation images. (#47484, #47956) - Terminal input approval is enabled by default for commands running with elevated permissions; runtime-only grants no longer cause unnecessary reviews. (#47799, #48073) ## Bug Fixes - Fixed Windows sandbox failures involving ordinary Windows 10 paths, rejected stored credentials, and large permission policies. (#47672, #47695, #47919) - Fixed Linux sandbox startup with nested writable roots and preserved Git metadata protections across writable roots on Linux and macOS. (#47623, #47974) - macOS patch operations now recognize system path aliases covered by existing permissions, avoiding unnecessary approval prompts. (#47879) - Approval reviews now retry when new user input arrives, so a status question does not automatically abort a pending action. (#47819) - Mermaid flowcharts now render quoted labels and ampersands; unsupported diagrams explain why they fall back to source. (#47572, #47678) - Command completion events now include early output and report process-launch failures to clients. (#47529, #47665) ## Changelog Full Changelog: https://github.com/openai/codex/compare/rust-v0.157.0...rust-v0.158.0 - #47441 Use secondary text styling for the transcript footer shortcut hint @etraut-openai - #47