Maintainer burnout and lack of funding often lead to bugs and serious security incidents,
不过完美日记的“哑火”并非一朝一夕，而是有一条清晰可查的下行曲线。
，这一点在Safew下载中也有详细论述
Old English is certainly its own language, with its own grammar, vocab, and idioms. And it does need to be studied as a different language - even now I feel like I have only scratched it's surface.
Finding these optimization opportunities can itself be a significant undertaking. It requires end-to-end understanding of the spec to identify which behaviors are observable and which can safely be elided. Even then, whether a given optimization is actually spec-compliant is often unclear. Implementers must make judgment calls about which semantics they can relax without breaking compatibility. This puts enormous pressure on runtime teams to become spec experts just to achieve acceptable performance.