Sourced from rack-mini-profiler's changelog.

4.0.1 - 2025-07-31

• [FIX] Ensure Rack 2 / 3 cross compatibility #654

4.0 - 2025-06-11

• [BREAKING CHANGE] Ruby version 3.1.0 or later is required. #632
• [FEATURE] Implement prepend patch for postgres #625
• [FEATURE] Show Active Record QueryCache hits in UI. #640
• [FEATURE] Show record type and count in SQL query UI. #638
• [FIX] Requests page fails due to trying to modify a frozen string. #630
• [FIX] alignment of SQL query start times. #627
• [FIX] Lower case HTTP response headers to be compatible with Rack 3 #628
• [FIX] Truncate long profiler name in profiler popup. #634
• [FIX] flamegraph_mode query param having no effect. #635
• [FIX] max_traces_to_show had chance to break the profiler frontend #297

3.3.1 - 2024-02-15

• [FEATURE] Support dynamic config.content_security_policy_nonce #609
• [FEATURE] Add flamgraph path to response header: #601

3.3.0 - 2023-12-07

• [FEATURE] Use ?pp=flamegraph?ignore_gc=true or config.flamegraph_ignore_gc to ignore gc in flamegraphs. #599

3.2.1 - 2023-12-07

• [FIX] memory_profiler was broken due to an undefined local #597

3.2.0 - 2023-12-06

• [BREAKING CHANGE] Ruby version 2.7.0 or later is required.
• [FEATURE] All RMP actions can be chosen by including a X-Rack-Mini-Profiler header as well as by query parameter. #578
• [FEATURE] Speedscope 1.12 -> 1.16
• [FIX] If patch_rails is false, do not patch mysql2 or pg #583
• [FIX] vertical position bottom now aligns the detail window correctly #581
• [FIX] Webpacker hiccup in some setups #582
• [INTERNAL] Capture rows instantiated by ActiveRecord, UI to be added later #585
• [INTERNAL] Lots of refactoring.

3.1.1 - 2023-08-01

• [FIX] Include configured base path in speedscope iframe URL #587
• [FIX] Race condition starting CacheCleanupThread #586
• [FEATURE] Add controller name to description #567
• [FIX] 'more' link w/HTTPS #574

3.1.0 - 2023-04-11

• [FEATURE] The query parameter that RMP uses (by default, pp) is now configurable #553
• [FEATURE] You can now opt-out of the Net::HTTP patch by using RACK_MINI_PROFILER_PATCH_NET_HTTP="false"
• [FIX] Error responses now include header values from the app, and stackprof not installed message now has correct content #547
• [FIX] RMP pages now have more valid HTML, with title elements #552

... (truncated)

• 227d931 amend CI to point to correct rack version
• 30237f7 new release
• 2fc6c6c Ensure compatibility with Rack 2.x and 3.x (#653)
• bb1d257 ActiveRecord db patch: support kwargs (#649)
• 647b03f CI: Configure setup-ruby to use a compatible RubyGems (#651)
• e11c4d4 CI: use actions/checkout@v4 (#650)
• See full diff in compare view

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