jQuery 2.2 與 1.12 釋出

jQuery 放出 2.2 與 1.12,預定是 3.0 前的最後一個 major release,之後不會加 feature 了:「jQuery 2.2 and 1.12 Released」。

主要的效能改善來自一年前對 Sizzle 的 patch:「Check existing selector cache and skip matchesSelector when possible · Issue #315 · jquery/sizzle」,針對 :visible:hidden 的效能改善,速度大約是原來的 17 倍:

Performance of the selector engine has improved thanks to a shortcut path that immediately uses precompiled Sizzle selectors when the selector cannot be processed by the native querySelectorAll or matchesSelector methods. This results in a significant speedup in some real-world cases.

距離上次出版 2.1.4 與 1.11.3 好久了 (2015 年 4 月的事情):「jQuery 1.11.3 and 2.1.4 Released – iOS Fail-Safe Edition」。

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