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Supported versions of ngtcp2 and nghttp3 for HTTP3?

From: Samuel Henrique via curl-library <>
Date: Mon, 29 Apr 2024 21:05:21 +0100

Hello everyone,

The documentation at seems to imply only the
following versions are supported:
ngtcp2: v1.2.0
nghttp3: v1.1.0

I say "imply" because I don't see mentions of "this version or later".

Are those only the minimum versions supported or will I be reaching into
unknown territory when building against newer libs (wth gnutls)?

Thank you

Samuel Henrique <samueloph>
Received on 2024-04-29