0.5.0

## [0.5.0](https://github.com/cloudflare/pingora/compare/0.4.0...0.5.0) - 2025-05-09
 
### 🚀 Features

- [Add tweak_new_upstream_tcp_connection hook to invoke logic on new upstream TCP sockets prior to connection](https://github.com/cloudflare/pingora/commit/be4a023d18c2b061f64ad5efd0868f9498199c91)
- [Add ability to configure max retries for upstream proxy failures](https://github.com/cloudflare/pingora/commit/6c5d6021a6e67c971e835bef269655d0db94c2d1)
- [Allow tcp user timeout to be configurable](https://github.com/cloudflare/pingora/commit/e77ca63da58892281f36dcb97c51a8b1e882e2f6)
- [Add peer address to downstream handshake error logs](https://github.com/cloudflare/pingora/commit/3f9e0a2fae8feaea12a1a9687e6b4bf4616f66c5)
- [Allow proxy to set stream level downstream read timeout](https://github.com/cloudflare/pingora/commit/87ae8ce2e7883c0a924a776b193c8a4f858b9349)
- [Improve support for sending custom response headers and bodies for error messages](https://github.com/cloudflare/pingora/commit/a8a6e77eef2c0f4d2a45f00c5b0e316dd373f2f2)
- [Allow configuring multiple listener tasks per endpoint](https://github.com/cloudflare/pingora/commit/69254671148938f6bc467f6decc2fc89ee7f531e)
- [Add get_stale and get_stale_while_update for memory-cache](https://github.com/cloudflare/pingora/commit/bb28044cbe9ac9251940b8a313d970c7d15aaff6)

### 🐛 Bug Fixes
 
- [Fix deadloop if proxy_handle_upstream exits earlier than proxy_handle_downstream](https://github.com/cloudflare/pingora/commit/bb111aaa92b3753e650957df3a68f56b0cffc65d)
- [Check on h2 stream end if error occurred for forwarding HTTP tasks](https://github.com/cloudflare/pingora/commit/e18f41bb6ddb1d6354e824df3b91d77f3255bea2)
- [Check for content-length underflow on end of stream h2 header](https://github.com/cloudflare/pingora/commit/575d1aafd7c679a50a443701a4c55dcfdbc443b2)
- [Correctly send empty h2 data frames prior to capacity polling](https://github.com/cloudflare/pingora/commit/c54190432a2efea30c5a0187bb7d078d33570a43)
- [Signal that the response is done when body write finishes to avoid h1 downstream/h2 upstream errors](https://github.com/cloudflare/pingora/commit/5750e4279e75b1e764dcfc5530aa7a7cebe3abef)
- [Ignore h2 pipe error when finishing an H2 upstream](https://github.com/cloudflare/pingora/commit/8ad15031291eb5779e0e93e714eb969c4132f632)
- [Add finish_request_body() for HTTP healthchecks so that H2 healthchecks succeed](https://github.com/cloudflare/pingora/commit/67bc7cc170e754d335cc1d6d526f203c4345eceb)
- [Fix Windows compile errors by updating `impl<T> UniqueID` to use correct return type](https://github.com/cloudflare/pingora/commit/1756948df77d257bddf7ab798cc3fddf348a91c8)
- [Fixed compilation errors on Windows](https://github.com/cloudflare/pingora/commit/906cb90864bf6e441727083c9cbd4f6fb289d6f5)
- [Poll for H2 capacity before sending H2 body to propagate backpressure](https://github.com/cloudflare/pingora/commit/b6f24ff3725d9d8b6a740d87cad959d94befbe54)
- [Fix for write_error_response for http2 downstreams to set EOS](https://github.com/cloudflare/pingora/commit/c0fa5065812d87e6e404c5624b26cd99c5194079)
- [Always drain v1 request body before session reuse](https://github.com/cloudflare/pingora/commit/fda3317ec822678564d641e7cf1c9b77ee3759ff)
- [Fixes HTTP1 client reads to properly timeout on initial read](https://github.com/cloudflare/pingora/commit/3c7db34acb0d930ae7043290a88bc56c1cd77e45)
- [Fixes issue where if TLS client never sends any bytes, hangs forever](https://github.com/cloudflare/pingora/commit/d1bf0bcac98f943fd716278d674e7d10dce2223e)
 
### Everything Else
 
- [Add builder api for pingora listeners](https://github.com/cloudflare/pingora/commit/3f564af3ae56e898478e13e71d67d095d7f5dbbd)
- [Better handling for h1 requests that contain both transfer-encoding and content-length](https://github.com/cloudflare/pingora/commit/9287b82645be4a52b0b63530ba38aa0c7ddc4b77)
- [Allow setting raw path in request to support non-UTF8 use cases](https://github.com/cloudflare/pingora/commit/e6b823c5d89860bb97713fdf14f197f799aed6af)
- [Allow reusing session on errors prior to proxy upstream](https://github.com/cloudflare/pingora/commit/f8d01278a586c60392b1e3b92e5ed97a415d8fe7)
- [Avoid allocating large buffer in the accept() loop](https://github.com/cloudflare/pingora/commit/ef234f5baa45650be064c7dd34c2f17986361480)
- [Ensure HTTP/1.1 when forcing chunked encoding](https://github.com/cloudflare/pingora/commit/9281cab8eab1b545f15f0e387d2ba4cd2ca27364)
- [Reject if the HTTP header contains duplicated Content-Length values](https://github.com/cloudflare/pingora/commit/eef35768d11305d1293468a6c3ce91a3858dc0fc)
- [proxy_upstream_filter tries to reuse downstream by default](https://github.com/cloudflare/pingora/commit/86293e65b5c7d8a96f3a333a1f191766dc95bee5)
- [Allow building server that avoids std::process::exit during shutdown](https://github.com/cloudflare/pingora/commit/2d977d4eb808d8bcbc0ce87cabac4cf4854dfb80)
- [Update Sentry crate to 0.36](https://github.com/cloudflare/pingora/commit/01a1f9a65c51a4351c29d6961ea3164a6a811958)
- [Update the bounds on `MemoryCache` methods to accept broader key types](https://github.com/cloudflare/pingora/commit/d66923a9a41d00b326cef5dfb57d8c020d6a4abb)
- [Flush already received data if upstream write errors](https://github.com/cloudflare/pingora/commit/aa7c2f1a89a652137a987e5f5dbdab228c2f4d06)
- [Allow modules to receive HttpTask::Done, flush response compression on receiving Done task](https://github.com/cloudflare/pingora/commit/c82fb6ba57b95c256b58095881a33a9bc08f170a)
- API signature changes as part of experimental proxy cache support
- Note MSRV was effectively bumped to 1.82 from 1.72 due to a dependency update, though older compilers may still be able to build by pinning dependencies, e.g. `cargo update -p backtrace --precise 0.3.74`.