The rare major that deliberately breaks things: htmx 4

htmx 4 rewrote its ajax core on fetch(), made attribute inheritance opt-in, and killed the client-side history cache, all on purpose. On npm it stays off the latest tag until early 2027, so you won't be upgraded by accident.

$ 2026.10.07 · 4 min read · #htmx

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The rare major that deliberately breaks things: htmx 4

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