We also have some developer-focused release notes at https://hacks.mozilla.org/2019/07/firefox-68-bigints-contrast-checks-and-the-quantumbar/ https://hacks.mozi

We also have some developer-focused release notes at https://hacks.mozilla.org/2019/07/firefox-68-bigints-contrast-checks-and-the-quantumbar/ https://hacks.mozilla.org/2019/07/firefox-68-bigints-contras... But more than anything... BigInt! Finally! JavaScript has real integers on Chrome and Firefox now! (The TC39 proposal is at Stage 3: https://github.com/tc39/proposal-bigint https://github.com/tc39/proposal-bigint)