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>I should be able to build my web app against an LTS version of the standard and expect it to behave identically in all future versions of all major browsers, u
by AgentME 7y ago
>I should be able to build my web app against an LTS version of the standard and expect it to behave identically in all future versions of all major browsers, until the EOL date of said version, no matter what changes they make in future versions.
That's already true of HTML5. Breaking changes in standardized features almost never happen. HTML5 actually goes further than what you suggest: they aim to never have breaking changes.