compatibility

iOS 27 and iPadOS 27 maintain device compatibility for most older iPhones and iPads, include performance improvements via a new CPU scheduler, but many new features require newer hardware with Apple Intelligence.

A comprehensive status overview of Common Lisp portability libraries showing compatibility percentages across different Common Lisp implementations.

A blog post updating the classic survey of C constructs that don't work in C++, covering changes in C++20 and C23 standards that affect compatibility.

The author points out that when writing AI agent skills, one must consider compatibility across different platforms (such as Claude Code and Codex), similar to how frontend development needed to adapt for different browsers in the past.

A hobby project enabling classic Windows 9x environments to run inside a modern Linux subsystem.