Mitmproxy

* Add support for reading HAR files using the existing flow loading APIs, e.g. `mitmproxy -r example.har`.
([6335](https://github.com/mitmproxy/mitmproxy/pull/6335), stanleygvi)
* Add support for writing HAR files using the `save.har` command and the `hardump` option for mitmdump.
([6368](https://github.com/mitmproxy/mitmproxy/pull/6368), stanleygvi)
* Packaging changes:
- `mitmproxy-rs` does not depend on a protobuf compiler being available anymore,
we're now also providing a working source distribution for all platforms.
- On macOS, `mitmproxy-rs` now depends on `mitmproxy-macos`. We only provide binary wheels for this package because
it contains a code-signed system extension. Building from source requires a valid Apple Developer Id, see CI for
details.
- On Windows, `mitmproxy-rs` now depends on `mitmproxy-windows`. We only provide binary wheels for this package to
simplify our deployment process, see CI for how to build from source.

([6303](https://github.com/mitmproxy/mitmproxy/issues/6303), mhils)
* Increase maximum dump file size accepted by mitmweb
([6373](https://github.com/mitmproxy/mitmproxy/pull/6373), t-wy)

* Add experimental support for HTTP/3 and QUIC.
([5435](https://github.com/mitmproxy/mitmproxy/issues/5435), meitinger)
* ASGI/WSGI apps can now listen on all ports for a specific hostname.
This makes it simpler to accept both HTTP and HTTPS.
([5725](https://github.com/mitmproxy/mitmproxy/pull/5725), mhils)
* Add `replay.server.add` command for adding flows to server replay buffer
([5851](https://github.com/mitmproxy/mitmproxy/pull/5851), italankin)
* Remove string escaping in raw view.
([5470](https://github.com/mitmproxy/mitmproxy/issues/5470), stephenspol)
* Updating `Request.port` now also updates the Host header if present.
This aligns with `Request.host`, which already does this.
([5908](https://github.com/mitmproxy/mitmproxy/pull/5908), sujaldev)
* Fix editing of multipart HTTP requests from the CLI.
([5148](https://github.com/mitmproxy/mitmproxy/issues/5148), mhils)
* Add documentation on using Magisk module for intercepting traffic in Android production builds.
([5924](https://github.com/mitmproxy/mitmproxy/pull/5924), Jurrie)
* Fix a bug where the direction indicator in the message stream view would be in the wrong direction.
([5921](https://github.com/mitmproxy/mitmproxy/issues/5921), konradh)
* Fix a bug where peername would be None in tls_passthrough script, which would make it not working.
([5904](https://github.com/mitmproxy/mitmproxy/pull/5904), truebit)
* the `esc` key can now be used to exit the current view
([6087](https://github.com/mitmproxy/mitmproxy/pull/6087), sujaldev)
* focus-follow shortcut will now work in flow view context too.
([6088](https://github.com/mitmproxy/mitmproxy/pull/6088), sujaldev)
* Fix a bug where a server connection timeout would cause requests to be issued with a wrong SNI in reverse proxy mode.
([6148](https://github.com/mitmproxy/mitmproxy/pull/6148), mhils)
* The `server_replay_nopop` option has been renamed to `server_replay_reuse` to avoid confusing double-negation.
([6084](https://github.com/mitmproxy/mitmproxy/issues/6084), prady0t, Semnodime)
* Add zstd to valid gRPC encoding schemes.
([6188](https://github.com/mitmproxy/mitmproxy/pull/6188), tsaaristo)
* For reverse proxy directly accessed via IP address, the IP address is now included
as a subject in the generated certificate.
([6202](https://github.com/mitmproxy/mitmproxy/pull/6202), mhils)
* Enable legacy SSL connect when connecting to server if the `ssl_insecure` flag is set.
([6281](https://github.com/mitmproxy/mitmproxy/pull/6281), DurandA)
* Change wording in the [http-reply-from-proxy.py example](https://github.com/mitmproxy/mitmproxy/blob/main/examples/addons/http-reply-from-proxy.py).
([6117](https://github.com/mitmproxy/mitmproxy/pull/6117), Semnodime)
* Added option to specify an elliptic curve for key exchange between mitmproxy <-> server
([6170](https://github.com/mitmproxy/mitmproxy/pull/6170), Mike-Ki-ASD)
* Add "Prettier" code linting tool to mitmweb.
([5985](https://github.com/mitmproxy/mitmproxy/pull/5985), alexgershberg)
* When logging exceptions, provide the entire exception object to log handlers
([6295](https://github.com/mitmproxy/mitmproxy/pull/6295), mhils)
* mitmproxy now requires Python 3.10 or above.
([5954](https://github.com/mitmproxy/mitmproxy/pull/5954), mhils)

Breaking Changes

* The `onboarding_port` option has been removed. The onboarding app now responds
to all requests for the hostname specified in `onboarding_host`.
* `connection.Client` and `connection.Server` now accept keyword arguments only.
This is a breaking change for custom addons that use these classes directly.

* The precompiled binaries now ship with OpenSSL 3.0.7, which resolves CVE-2022-3602 and CVE-2022-3786.
* Performance and stability improvements for WireGuard mode.
([5694](https://github.com/mitmproxy/mitmproxy/issues/5694), mhils, decathorpe)
* Fix a bug where the standalone Linux binaries would require libffi to be installed.
([5699](https://github.com/mitmproxy/mitmproxy/issues/5699), mhils)
* Hard exit when mitmproxy cannot write logs, fixes endless loop when parent process exits.
([4669](https://github.com/mitmproxy/mitmproxy/issues/4669), Prinzhorn)
* Fix a permission error affecting the Docker images.
([5700](https://github.com/mitmproxy/mitmproxy/issues/5700), mhils)

Major Features

* Add Raw UDP support.
([5414](https://github.com/mitmproxy/mitmproxy/pull/5414), meitinger)
* Add WireGuard mode to enable transparent proxying via WireGuard.
([5562](https://github.com/mitmproxy/mitmproxy/pull/5562), decathorpe, mhils)
* Add DTLS support.
([5397](https://github.com/mitmproxy/mitmproxy/pull/5397), kckeiks).
* Add a quick help bar to mitmproxy.
([5381](https://github.com/mitmproxy/mitmproxy/pull/5381/), [#5652](https://github.com/mitmproxy/mitmproxy/pull/5652), kckeiks, mhils).

Deprecations

* Deprecate `add_log` event hook. Users should use the builtin `logging` module instead.
See [the docs](https://docs.mitmproxy.org/dev/addons-api-changelog/) for details and upgrade instructions.
([5590](https://github.com/mitmproxy/mitmproxy/pull/5590), mhils)
* Deprecate `mitmproxy.ctx.log` in favor of Python's builtin `logging` module.
See [the docs](https://docs.mitmproxy.org/dev/addons-api-changelog/) for details and upgrade instructions.
([5590](https://github.com/mitmproxy/mitmproxy/pull/5590), mhils)

Breaking Changes

* The `mode` option is now a list of server specs instead of a single spec.
The CLI interface is unaffected, but users may need to update their `config.yaml`.
([5393](https://github.com/mitmproxy/mitmproxy/pull/5393), mhils)

Full Changelog

* Mitmproxy binaries now ship with Python 3.11.
([5678](https://github.com/mitmproxy/mitmproxy/issues/5678), mhils)
* One mitmproxy instance can now spawn multiple proxy servers.
([5393](https://github.com/mitmproxy/mitmproxy/pull/5393), mhils)
* Add syntax highlighting to JSON and msgpack content view.
([5623](https://github.com/mitmproxy/mitmproxy/issues/5623), SapiensAnatis)
* Add MQTT content view.
([5588](https://github.com/mitmproxy/mitmproxy/pull/5588), nikitastupin, abbbe)
* Setting `connection_strategy` to `lazy` now also disables early
upstream connections to fetch TLS certificate details.
([5487](https://github.com/mitmproxy/mitmproxy/pull/5487), mhils)
* Fix order of event hooks on startup.
([5376](https://github.com/mitmproxy/mitmproxy/issues/5376), meitinger)
* Include server information in bind/listen errors.
([5495](https://github.com/mitmproxy/mitmproxy/pull/5495), meitinger)
* Include information about lazy connection_strategy in related errors.
([5465](https://github.com/mitmproxy/mitmproxy/pull/5465), meitinger, mhils)
* Fix `tls_version_server_min` and `tls_version_server_max` options.
([5546](https://github.com/mitmproxy/mitmproxy/issues/5546), mhils)
* Added Magisk module generation for Android onboarding.
([5547](https://github.com/mitmproxy/mitmproxy/pull/5547), jorants)
* Update Linux binary builder to Ubuntu 20.04, bumping the minimum glibc version to 2.31.
([5547](https://github.com/mitmproxy/mitmproxy/pull/5547), jorants)
* Add "Save filtered" button in mitmweb.
([5531](https://github.com/mitmproxy/mitmproxy/pull/5531), rnbwdsh, mhils)
* Render application/prpc content as gRPC/Protocol Buffers
([5568](https://github.com/mitmproxy/mitmproxy/pull/5568), selfisekai)
* Mitmweb now supports `content_view_lines_cutoff`.
([5548](https://github.com/mitmproxy/mitmproxy/pull/5548), sanlengjingvv)
* Fix a mitmweb crash when scrolling down the flow list.
([5507](https://github.com/mitmproxy/mitmproxy/pull/5507), LIU-shuyi)
* Add HTTP/3 binary frame content view.
([5582](https://github.com/mitmproxy/mitmproxy/pull/5582), mhils)
* Fix mitmweb not properly opening a browser and being stuck on some Linux.
([5522](https://github.com/mitmproxy/mitmproxy/issues/5522), Prinzhorn)
* Fix race condition when updating mitmweb WebSocket connections that are closing.
([5405](https://github.com/mitmproxy/mitmproxy/issues/5405), [#5686](https://github.com/mitmproxy/mitmproxy/issues/5686), mhils)
* Fix mitmweb crash when using filters.
([5658](https://github.com/mitmproxy/mitmproxy/issues/5658), [#5661](https://github.com/mitmproxy/mitmproxy/issues/5661), LIU-shuyi, mhils)
* Fix missing default port when starting a browser.
([5687](https://github.com/mitmproxy/mitmproxy/issues/5687), rbdixon)
* Add docs for transparent mode on Windows.
([5402](https://github.com/mitmproxy/mitmproxy/issues/5402), stephenspol)

* Support specifying the local address for outgoing connections
([5364](https://github.com/mitmproxy/mitmproxy/discussions/5364), meitinger)
* Fix a bug where an excess empty chunk has been sent for chunked HEAD request.
([5372](https://github.com/mitmproxy/mitmproxy/discussions/5372), jixunmoe)
* Drop pkg_resources dependency.
([5401](https://github.com/mitmproxy/mitmproxy/issues/5401), PavelICS)
* Fix huge (>65kb) http2 responses corrupted.
([5428](https://github.com/mitmproxy/mitmproxy/issues/5428), dhabensky)
* Remove overambitious assertions in the HTTP state machine,
fix some error handling.
([5383](https://github.com/mitmproxy/mitmproxy/issues/5383), mhils)
* Use default_factory for parser_options.
([5474](https://github.com/mitmproxy/mitmproxy/issues/5474), rathann)

* DNS support
([5232](https://github.com/mitmproxy/mitmproxy/pull/5232), meitinger)
* Mitmproxy now requires Python 3.9 or above.
([5233](https://github.com/mitmproxy/mitmproxy/issues/5233), mhils)
* Fix a memory leak in mitmdump where flows were kept in memory.
([4786](https://github.com/mitmproxy/mitmproxy/issues/4786), mhils)
* Replayed flows retain their current position in the flow list.
([5227](https://github.com/mitmproxy/mitmproxy/issues/5227), mhils)
* Periodically send HTTP/2 ping frames to keep connections alive.
([5046](https://github.com/mitmproxy/mitmproxy/issues/5046), EndUser509)
* Console Performance Improvements
([3427](https://github.com/mitmproxy/mitmproxy/issues/3427), BkPHcgQL3V)
* Warn users if server side event responses are received without streaming.
([4469](https://github.com/mitmproxy/mitmproxy/issues/4469), mhils)
* Add flatpak support to the browser addon
([5200](https://github.com/mitmproxy/mitmproxy/issues/5200), pauloromeira)
* Add example addon to dump contents to files based on a filter expression
([5190](https://github.com/mitmproxy/mitmproxy/issues/5190), redraw)
* Fix a bug where the wrong SNI is sent to an upstream HTTPS proxy
([5109](https://github.com/mitmproxy/mitmproxy/issues/5109), mhils)
* Make sure that mitmproxy displays error messages on startup.
([5225](https://github.com/mitmproxy/mitmproxy/issues/5225), mhils)
* Add example addon for domain fronting.
([5217](https://github.com/mitmproxy/mitmproxy/issues/5217), randomstuff)
* Improve cut addon to better handle binary contents
([3965](https://github.com/mitmproxy/mitmproxy/issues/3965), mhils)
* Fix text truncation for full-width characters
([4278](https://github.com/mitmproxy/mitmproxy/issues/4278), kjy00302)
* Fix mitmweb export copy failed in non-secure domain.
([5264](https://github.com/mitmproxy/mitmproxy/issues/5264), Pactortester)
* Add example script for manipulating cookies.
([5278](https://github.com/mitmproxy/mitmproxy/issues/5278), WillahScott)
* When opening an external viewer for message contents, mailcap files are not considered anymore.
This preempts the upcoming deprecation of Python's `mailcap` module.
([5297](https://github.com/mitmproxy/mitmproxy/issues/5297), KORraNpl)
* Fix hostname encoding for IDNA domains in upstream mode.
([5316](https://github.com/mitmproxy/mitmproxy/issues/5316), nneonneo)
* Fix hot reloading of contentviews.
([5319](https://github.com/mitmproxy/mitmproxy/issues/5319), nneonneo)
* Ignore HTTP/2 information responses instead of raising an error.
([5332](https://github.com/mitmproxy/mitmproxy/issues/5332), mhils)
* Improve performance and memory usage by reusing OpenSSL contexts.
([5339](https://github.com/mitmproxy/mitmproxy/issues/5339), mhils)
* Fix handling of multiple Cookie headers when proxying HTTP/2 to HTTP/1
([5337](https://github.com/mitmproxy/mitmproxy/issues/5337), rinsuki)
* Improve http_manipulate_cookies.py example.
([5578](https://github.com/mitmproxy/mitmproxy/issues/5578), insilications)