pypi / httpx2

httpx2

What changed in httpx2 2, from its official release notes, upgrade guides and advisories. Sources checked 2026-10-18.

4 breaking1 security1 behavior and defaults5 fixes and other

See which of these apply to your code, ranked, in your agent:

npx @unstale/cli init

httpx2 211 changes

HTTP/1.1 is no longer advertised during TLS protocol negotiation when it is disabled.
2.13.1release notes
HTTP/2 is preferred during TLS protocol negotiation when enabled.
2.13.1release notes
The brotli extra on non-CPython implementations now requires brotlicffi 1.2.0.2 or later.
2.13.0release notes
The trio extra now requires Trio 0.34.0 or later.
2.13.0release notes

Adds an explicit CLI counterpart for enabling TLS certificate verification.
2.13.0release notes

Entries can match IP CIDR ranges and bracketed IPv6 addresses; requests to addresses in a CIDR range bypass the proxy.
2.14.0release notes

When a file is passed as content, Content-Length is calculated from its remaining bytes, respecting its current position.
2.13.1release notes
The sni_hostname extension is honored for TLS inside HTTP proxy tunnels without affecting the proxy's TLS connection.
2.13.1release notes
The sync WebSocket keepalive thread exits cleanly when a ping races with connection shutdown.
2.13.1release notes
Avoids nested async generator finalization errors when streamed responses are abandoned early.
2.13.0release notes
The CLI flag now disables TLS certificate verification as intended.
2.13.0release notes