Bump puma from 6.6.0 to 8.0.1

[dependabot]

Bumps puma from 6.6.0 to 8.0.1.

Release notes

Sourced from puma's releases.

v8.0.1

• Bugfixes

  • Fix prune_bundler stripping user-configured BUNDLE_* env vars (e.g. BUNDLE_WITHOUT) on re-exec, which caused workers to crash on boot (#3929)

• Performance

  • Use blocks for debug logging to avoid creating log messages when debug is disabled (#3920)

• Docs

  • Fix incorrect hook names in gRPC docs (#3923)
  • Reword v8 upgrade guide IPv6 bullet for clarity (#3928)

v8.0.0 - Into the Arena

Read our Version 8 Upgrade Guide.

• Features

  • Add env["puma.mark_as_io_bound"] API and max_io_threads config to allow IO-bound requests to exceed the thread pool max, enabling better handling of mixed workloads (#3816, #3894)
  • Add single and cluster DSL hooks for mode-specific configuration (#3621)
  • Add on_force option to shutdown_debug to only dump thread backtraces on forced (non-graceful) shutdown (#3671)
  • Add API to dynamically update min and max thread counts at runtime via update_thread_pool_min_max and ServerPluginControl (#3658)
  • Use SIGPWR for thread backtrace dumps on Linux/JRuby where SIGINFO is unavailable (#3829)

• Bugfixes

  • Fix phased restart for fork_worker to avoid forking from stale worker 0 when it has been replaced (#3853)

• Performance

  • JRuby HTTP parser improvements: pre-allocated header keys, perfect hash lookup, reduced memory copies (#3838)
  • Cache downcased header key in str_headers to avoid redundant String#downcase calls, reducing allocations by ~50% per response (#3874)

• Refactor

  • Collect env processing into dedicated client_env.rb module (#3582)
  • Move event to default configuration (#3872)

• Docs

  • Add gRPC guide for configuring gRPC lifecycle hooks in clustered mode (#3885)
  • Add 7.0 upgrade guide, move 5.0/6.0 upgrade guides to docs directory (#3900)
  • Correct default values for persistent_timeout and worker_boot_timeout in DSL docs (#3912)
  • Add file descriptor limit warning in test helper for contributors (#3893)

• Breaking changes

  • Default production bind address changed from 0.0.0.0 to :: (IPv6) when a non-loopback IPv6 interface is available; falls back to 0.0.0.0 if IPv6 is unavailable (#3847)

v7.2.0 - On The Corner

• Features

  • Add workers :auto (#3827)
  • Make it possible to restrict control server commands to stats (#3787)

• Bugfixes

  • Don't break if WEB_CONCURRENCY is set to a blank string (#3837)

... (truncated)

Changelog

Sourced from puma's changelog.

8.0.1 / 2026-04-27

• Bugfixes

  • Fix prune_bundler stripping user-configured BUNDLE_* env vars (e.g. BUNDLE_WITHOUT) on re-exec, which caused workers to crash on boot (#3929)

• Performance

  • Use blocks for debug logging to avoid creating log messages when debug is disabled (#3920)

• Docs

  • Fix incorrect hook names in gRPC docs (#3923)
  • Reword v8 upgrade guide IPv6 bullet for clarity (#3928)

8.0.0 / 2026-03-27

• Features

  • Add env["puma.mark_as_io_bound"] API and max_io_threads config to allow IO-bound requests to exceed the thread pool max, enabling better handling of mixed workloads (#3816, #3894)
  • Add single and cluster DSL hooks for mode-specific configuration (#3621)
  • Add on_force option to shutdown_debug to only dump thread backtraces on forced (non-graceful) shutdown (#3671)
  • Add API to dynamically update min and max thread counts at runtime via update_thread_pool_min_max and ServerPluginControl (#3658)
  • Use SIGPWR for thread backtrace dumps on Linux/JRuby where SIGINFO is unavailable (#3829)

• Bugfixes

  • Fix phased restart for fork_worker to avoid forking from stale worker 0 when it has been replaced (#3853)

• Performance

  • JRuby HTTP parser improvements: pre-allocated header keys, perfect hash lookup, reduced memory copies (#3838)
  • Cache downcased header key in str_headers to avoid redundant String#downcase calls, reducing allocations by ~50% per response (#3874)

• Refactor

  • Collect env processing into dedicated client_env.rb module (#3582)
  • Move event to default configuration (#3872)

• Docs

  • Add gRPC guide for configuring gRPC lifecycle hooks in clustered mode (#3885)
  • Add 7.0 upgrade guide, move 5.0/6.0 upgrade guides to docs directory (#3900)
  • Correct default values for persistent_timeout and worker_boot_timeout in DSL docs (#3912)
  • Add file descriptor limit warning in test helper for contributors (#3893)

• Breaking changes

  • Default production bind address changed from 0.0.0.0 to :: (IPv6) when a non-loopback IPv6 interface is available; falls back to 0.0.0.0 if IPv6 is unavailable (#3847)

7.2.0 / 2026-01-20

• Features

  • Add workers :auto (#3827)
  • Make it possible to restrict control server commands to stats (#3787)

• Bugfixes

  • Don't break if WEB_CONCURRENCY is set to a blank string (#3837)
  • Don't share server between worker 0 and descendants on refork (#3602)

... (truncated)

Commits

• cee7e61 Release v8.0.1 (#3932)
• f955caf Fix prune_bundler stripping user-configured BUNDLE_* env vars on re-exec (#3929)
• 97996aa ci: test_error_logger.rb - fix TruffleRuby error (#3930)
• 03825bc Build(deps): Bump actions/github-script from 8 to 9 (#3925)
• 053efae Reword v8 upgrade guide ipv6 bullet (#3928)
• b19f35a Fix incorrect hook names in gRPC docs (#3923)
• eeabe4b Use blocks for debug logging to avoid creating messages if debug disabled (#3...
• 08f63d4 Release v8.0.0 (#3914)
• 7406cc1 Fix IPv4-mapped IPv6 addresses in REMOTE_ADDR and request logs (#3916)
• e090243 Build(deps): Bump actions/checkout from 4 to 6 (#3915)
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[chatgpt-codex-connector]

Preserve IPv4 bind behavior when upgrading to Puma 8

This bump changes runtime behavior in production because config/puma.rb only calls port ENV.fetch("PORT", 3000) and does not set an explicit host/bind; Puma 8 switched the production default bind toward IPv6 (::), so on hosts where IPv6 sockets are v6-only (for example net.ipv6.bindv6only=1), IPv4 load-balancer or health-check traffic can stop reaching the app after deployment. Since this commit upgrades from 6.6.0 to 8.0.1 without pinning bind address, it can introduce an availability regression in IPv4-oriented environments.

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