Sourced from guzzlehttp/psr7's releases.

2.12.3

Security

• Validate the URI host so getHost() matches the URI authority (GHSA-c2w2-prh8-qm98)

Sourced from guzzlehttp/psr7's changelog.

2.12.3 - 2026-06-23

Security

• Validate the URI host so getHost() matches the URI authority (GHSA-c2w2-prh8-qm98)

2.12.2 - 2026-06-23

Fixed

• Report URI parsing, filtering, and normalization PCRE failures explicitly
• Report HTTP message parser PCRE failures explicitly
• Fail closed when PCRE validation fails for request targets and hosts

2.12.1 - 2026-06-18

Security

• Reject CR/LF in HTTP method, protocol version, and reason phrase (GHSA-vm85-hxw5-5432)

2.12.0 - 2026-06-16

Deprecated

• Deprecated non-finite float values in Query::build() that guzzlehttp/psr7 3.0 rejects
• Deprecated non-finite float multipart contents that guzzlehttp/psr7 3.0 rejects
• Deprecated non-string scalar bodies in Utils::streamFor(); cast them to a string for 3.0
• Deprecated non-string Uri::withQueryValues() values; cast them to a string for 3.0

2.11.1 - 2026-06-12

Fixed

• Fixed non-finite float values emitting coercion warnings on PHP 8.5

2.11.0 - 2026-06-02

Changed

• Changed Utils::modifyRequest() to reject conflicting URI and Host header changes in the same call
• Changed Header::parse() to split semicolon-separated parameters without repeated regular expression lookaheads
• Changed UriComparator::isCrossOrigin() so only HTTP and HTTPS missing ports receive implicit default ports

Deprecated

• Deprecated invalid PSR-7 arguments that guzzlehttp/psr7 3.0 will require native types for
• Deprecated non-string header values that guzzlehttp/psr7 3.0 will reject
• Deprecated empty header value arrays that guzzlehttp/psr7 3.0 will reject
• Deprecated URI schemes that do not match guzzlehttp/psr7 3.0 syntax requirements
• Deprecated multipart boundary and custom part header metadata that guzzlehttp/psr7 3.0 will reject

... (truncated)

• See full diff in compare view