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dio_http2_adapter

2.9.0166K downloads/mocfug/dio ↗New releases in your daily digest, changelog included.

An adapter that combines HTTP/2 and dio. Supports reusing connections, header compression, etc.

Release timeline

24 releases since 2019

20192020202120222023202420252026

2.9.04 Sept 2026Deprecated2 sources agree
Deprecate the misspelled ConnectionManager.handshakeTimout parameter in favor of the correctly spelled handshakeTimeout ; the deprecated alias keeps w…
What's new

Expose supportedProtocols on ConnectionManager (defaults to ['h2'],
fully backwards-compatible). Setting it to ['h2', 'http/1.1'] fixes
fallbackAdapter silently never firing against RFC 7301-compliant servers
that abort the TLS handshake with no_application_protocol when only h2
is advertised.

Fix socket leak: when DioH2NotSupportedException is thrown after a
successful TLS handshake (server selected http/1.1 instead of h2),
the SecureSocket is now explicitly destroyed before routing to
fallbackAdapter, rather than being abandoned.

Deprecate the misspelled ConnectionManager.handshakeTimout parameter in
favor of the correctly spelled handshakeTimeout; the deprecated alias
keeps working and is scheduled for removal in 3.0.0.
Open source →
2.8.025 Jul 20262 sources agree
Prevent sensitive request headers from being forwarded across origins during redirects.

cfug/dio

One column per quarter.

Prevent sensitive request headers from being forwarded across origins during
redirects.
Prevent uploads from throwing a StateError when the HTTP/2 connection closes
before the request body finishes streaming.
Run HTTP integration and certificate pinning tests against the configured
test server.

2.7.125 May 20262 sources agree

Fix :authority header generation to include non-default ports.

2.7.02 Mar 2026

Fix inconsistent cache key format in _ConnectionManager between getConnection() and _connect(), which caused _transportsMap.remove() to fail silently

Fix inconsistent cache key format in _ConnectionManager between getConnection() and _connect(), which caused _transportsMap.remove() to fail silently during idle timeout cleanup and led to memory leaks.
Add handshakeTimeout (defaults to 15 seconds) to the ConnectionManager to prevent long waiting if there's something wrong with the handshake procedure.
Provides httpVersion in Response.extra.

2.6.029 Jan 2025

Make cached connections respect redirections and scheme.

2.5.33 Jul 2024

Improves memory allocating when using CancelToken.

2.5.213 Apr 2024

Remove client stream termination in Http2Adapter.

2.5.126 Mar 2024

Wrap SocketException in DioExceptionType.connectionError instead of DioExceptionType.unknown.

Wrap SocketException in DioExceptionType.connectionError instead of DioExceptionType.unknown.

2.5.028 Feb 2024

Fix cancellation for streamed responses and downloads.

Fix cancellation for streamed responses and downloads.
Fix progress for streamed responses and downloads.
Bump minimum Dart SDK to 3.0.0 as required by the http2 package.
Allows HTTP/1.0 when connecting to proxies.
Add the ability to use a fallback HttpClientAdapter when HTTP/2 is unavailable for the current request.

2.4.030 Nov 2023

Support non-TLS connection requests.