OWC Intel Mac Transition Report

Source identity

Captured material

The article reports macOS 27 as Apple-silicon-only and describes how owners can identify affected Intel Macs. It motivates maintaining software for machines excluded from new major OS releases. This secondary report does not establish an exact security-update end date or prove compatibility of a particular old Mac with aslice. The project platform window and hardware acceptance tests are independent requirements.

Decision-relevant context

Source locator: OWC Wayne G, June 15, 2026; affected Intel models and how to identify your Mac.

The article frames macOS 27 Golden Gate as the first Apple-silicon-only major release. It directs users to About This Mac to distinguish an Intel processor from an Apple chip and discusses continuing with the last compatible OS as distinct from buying replacement hardware. Exclusion from a new major version is not immediate failure of the machine or all installed applications.

Because OWC is a secondary publisher, its outlook for continued use does not bind Apple to a particular security-update duration. Model-specific compatibility should be established from Apple's model record, such as the separate late-2013 Mac Pro entry.

Applicability and limits

Dated account of the relevant facts, not a full original or an implementation test.

Project interpretation

The report explains demand for software on retained hardware. aslice's 10.11–12 support window is a project choice; neither that window nor successful execution is established by this article.

Omissions and evidence gaps

Buying advice, product promotions, images, and broader model lists are omitted. No primary Apple support-lifetime announcement is preserved here; do not infer a security end date.

Preservation

This UTF-8 Markdown record is readable without a browser, script, account, or network. Preserve it with the repository and SHA256SUMS; retain superseded records when replacing a source version. Original URLs identify provenance, not a runtime dependency.

Review: 2026-09-26 UTC. Original source re-read against the cited local sections; added locators, conditions, and explicit gaps. No runtime validation is inferred. This account expands the earlier summary without replacing its historical date.

Source document