dnsdiag 2.9.0

What's Changed

New Features

• Added --nsid support to dnstraceroute for tracing paths to anycast instances (#153, #152)
• Added DNS COOKIE support to dnsping (--cookie)
• Added DoQ (DNS over QUIC) and DoH3 (DNS over HTTP/3) protocol support to dnseval (#139, #137)
• Added cache warmup behavior to dnseval for fair resolver comparisons (#138, #40)
• Added EDNS flags display in dnseval output
• Added Python 3.14 support

Improvements

• Refactored codebase with PEP 8 conventions and comprehensive type hints (#151)
• Improved CLI error handling and parameter validation across all tools
• Enhanced hostname validation to allow RFC-compliant hostnames starting with underscore
• Improved IPv6 address display with bracket wrapping for readability

Bug Fixes

• Fixed IPv4/IPv6 address family selection to default to AF_UNSPEC for automatic detection
• Fixed DoH3 feature detection to properly check HTTPVersion.H3
• Fixed hostname resolution on Windows where getaddrinfo() behaves differently
• Fixed IPv6 hostname resolution to avoid IPv4-mapped IPv6 addresses
• Fixed DNS COOKIE display in normal and verbose modes
• Fixed JSON output type consistency for float values
• Fixed premature TCP connection termination handling (#140)

Testing & CI/CD

• Added comprehensive GitHub Actions integration test workflow for Ubuntu, macOS, and Windows
• Added test markers for network, privileged, and IPv6 tests
• Integrated git-changelog for automated changelog generation

Documentation

• Cleaned up DNS resolver lists (removed dns0.eu, updated UncensoredDNS status)
• Updated DNS resolver lists with DoT/DoH hostnames and new providers