Htmx 4.0

	Htmx 4.0(four.htmx.org)
	815 points by rmsaksida 13 days ago \| 229 comments
	tl;dr: htmx 4.0 ships after 8 months of work, with internals migrated from XMLHttpRequest to fetch(). Breaking changes include explicit attribute inheritance (via `:inherited` suffix), standardized event names (e.g., `htmx:before:request`), and history navigation via re-fetching instead of localStorage snapshots. New features include built-in morph swaps (idiomorph), an `<hx-partial>` tag for multi-target updates, streaming extensions (SSE, WebSockets, multipart), and `hx-live` for front-end scripting. A CLI upgrade tool is provided; htmx 2 remains the NPM `latest` tag until 2027.
	HN Discussion: ↑Long-time htmx fans expressing enthusiasm and gratitude for the library and new release ↑Htmx works great for progressive enhancement and simple stacks like Go+SQLite ↓Htmx is problematic because it forces mixing presentation with business logic, unsuitable for SPA-style development ~Alternative libraries like alpine-ajax may be smaller and sufficient replacements for htmx •Appreciation for the clarity of htmx's machine-oriented documentation compared to typical human docs