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wire 2026-07-08
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INTEL MACOS CODEX CRASHES ON V8 STARTUP, SIGNING FIX SHIPS

By RepoJournal · Filed · About OpenAI · Composed from the cited sources · methodology

Code Mode tool calls are crashing on Intel macOS because V8's code range allocation triggers Hardened Runtime rejection without the right entitlement.

OpenAI shipped an emergency fix [1] that adds the missing Intel V8 signing entitlement to Codex release binaries. The crash happens during the first tool call when V8 tries to make a non-JIT memory reservation executable, and the current signature only contains the JIT-specific entitlement. This is an immediate production issue for anyone running Codex on Intel Macs with the latest GPT-5.6 sol tool calls.

In parallel, the core team is standardizing how collaboration and sub-agent activity items flow through the system. Both the canonical collab tool call items [2] and the canonical sub-agent activity items [3] are now emitting through the proper TurnItem lifecycle instead of legacy events. App-server v2 consumes these canonical items directly, applies thread-watch cleanup from completed items, and ignores the mapped legacy events. This architectural consolidation reduces event complexity and tightens the contract between core and app-server.

A refactor extracted remote compaction request attempts [4] as a behavior-preserving change ahead of follow-up work on compaction fallbacks. The login system now supports hosted success redirects [5], letting app-server callers opt into a hosted page instead of localhost, while persisting credentials before the redirect.

Quick answers

What shipped in OpenAI on July 8, 2026?
Code Mode tool calls are crashing on Intel macOS because V8's code range allocation triggers Hardened Runtime rejection without the right entitlement. In total, 32 commits, 32 pull requests, and 2 releases landed.
Who contributed to OpenAI on July 8, 2026?
3 developers shipped this update, including owenlin0, celia-oai, and rafael-jac.
What were the notable OpenAI updates?
fix(release): add missing Intel V8 signing entitlement (#30953), feat(core): emit canonical collab tool call items, and feat(core): emit canonical sub-agent activity items.