v2.121.0

🚀 Features

• Add EnvironmentVersions resource
• Raise a clear error when a MySQL adapter is configured
• Add tri-state log_otel_enabled configuration
• Add OpenTelemetry log appender setup
• Add trace-aware JSON log formatter
• Wire OTel appender and trace-aware JSON formatter into config
• Add endpoint to get versions released or deployed

🐛 Bug Fixes

• Require stringio in the configuration docs generator
• Use semantic_logger JSON helper for trace-enriched log output
• Defer debug log string interpolation in pact publish
• (matrix) Honour use_case_sensitive_resource_names when resolving selectors
• Escaping for the XSS findings, regex safety for the ReDoS findings
• SQL injection vulnerability

🚜 Refactor

• Remove MySQL strict-mode handling from DB connection setup
• Remove MySQL-specific query and upsert branches

⚡️ Performance

• (matrix) Flatten selector union to prevent quadratic query nesting
• (matrix) Filter matrix rows by the already-resolved version ids

🎨 Styling

• (matrix) Build the baseline name lists the idiomatic way

📚 Documentation

• Remove MySQL references
• Document log_otel_enabled configuration
• Describe the pull request release process

🧪 Testing

• Unskip MySQL-only pending tests and drop MySQL comments
• Fix idempotency spec to avoid loading absent OTel gem
• (matrix) Add query-profiling baseline tooling
• (matrix) Make the query baseline reproducible enough to diff
• (matrix) Add a baseline shape for can-i-deploy at integration scale
• (matrix) Pin the resolved and SQL-derived version ids as equivalent
• Cover the tag name as a literal string when deleting a tag

📦 Other

• Remove unused triage board workflow

🛠️ Miscellaneous Tasks

• Remove mysql2 gem
• (ci) Remove MySQL job, tooling, and config
• Remove remaining MySQL references from Dockerfile, comment, and backwards-compat Gemfile
• Reject blank pacticipant names in pact publish validation
• Require Ruby 3.2+ for semantic_logger v5
• Delete stale branches first
• Select the local Postgres version with a single variable
• Align changelog heading levels with git-cliff's
• Add git-cliff config and the release script
• (ci) Release the gem by merging a pull request
• (ci) Reduce CI on draft PRs
• (ci) Rebase when conflicted only