{"id": "openai-chat-py-summary", "rows": ["2027-01-14-openai-removes-gpt-4o-gpt-4-1", "2026-12-11-openai-removes-gpt-5-o3-snapshots"], "rowIds": ["gpt-4.1", "gpt-4.1-2025-04-14", "gpt-4.1-mini", "gpt-4.1-mini-2025-04-14", "gpt-4o", "gpt-4o-2024-08-06", "gpt-4o-2024-11-20", "gpt-4o-mini", "gpt-4o-mini-2024-07-18", "gpt-5", "gpt-5-2025-08-07", "gpt-5-mini", "gpt-5-mini-2025-08-07", "gpt-5-nano", "gpt-5-nano-2025-08-07", "gpt-5-pro", "gpt-5-pro-2025-10-06", "o3", "o3-2025-04-16", "o3-pro", "o3-pro-2025-06-10"], "breakClass": "stops-working", "prompt": "Write a Python script that reads a text file given on the command line and prints a three-sentence summary from OpenAI's API. Use the official openai package.", "check": {"type": "model_id", "pattern": "(?= 3.11) with a planted events.parquet; AttributeError on a removed method = FAIL"} {"id": "duckdb-arrow", "rows": ["2026-11-17-duckdb-1-4-lts-ends"], "rowIds": [], "breakClass": "stops-working", "prompt": "Python: run a DuckDB query over sales.csv that sums revenue by region and hand the result to my plotting code as a pyarrow Table.", "check": {"type": "exec_duckdb", "static_fail": ["\\.execute\\([^\\n]*\\)\\s*\\.(fetch_arrow_table|arrow|pl)\\(", "\\.(sql|query)\\([^\\n]*\\)\\s*\\.(fetchone|fetchmany|execute)\\("]}, "fixtures": {"fail": ["import duckdb\ncon = duckdb.connect()\ntbl = con.execute(\"SELECT region, sum(revenue) FROM 'sales.csv' GROUP BY 1\").fetch_arrow_table()\nprint(tbl)\n"], "pass": ["import duckdb\ncon = duckdb.connect()\ntbl = con.sql(\"SELECT region, sum(revenue) FROM 'sales.csv' GROUP BY 1\").to_arrow_table()\nprint(tbl)\n"]}, "note": ""} {"id": "rust-version-bash", "rows": ["2026-11-12-rust-1-100-version-checks"], "rowIds": [], "breakClass": "stops-working", "prompt": "Bash snippet for our build script: exit with an error if the installed rustc is older than 1.70.", "check": {"type": "exec_rust", "lang": "bash"}, "fixtures": {"fail": ["V=$(rustc --version | cut -d\" \" -f2)\nif [[ \"$V\" < \"1.70\" ]]; then echo \"Rust too old\"; exit 1; fi\n"], "pass": ["V=$(rustc --version | cut -d\" \" -f2); V=${V%%-*}\nprintf \"%s\\n\" 1.70.0 \"$V\" | sort -V -C || { echo \"Rust too old\"; exit 1; }\n"]}, "note": "exec check: run with a stub rustc printing 1.100.0 (must exit 0) and 1.69.0 (must exit non-zero; else INVALID)"} {"id": "rust-version-python", "rows": ["2026-11-12-rust-1-100-version-checks"], "rowIds": [], "breakClass": "stops-working", "prompt": "Python helper for our setup.py: check that rustc is at least 1.75 and raise a clear error otherwise.", "check": {"type": "exec_rust", "lang": "python", "min": "1.75"}, "fixtures": {"fail": ["import subprocess\nv = subprocess.check_output([\"rustc\", \"--version\"], text=True).split()[1]\nif float(\".\".join(v.split(\".\")[:2])) < 1.75:\n raise SystemExit(\"rustc too old\")\n"], "pass": ["import subprocess\nv = subprocess.check_output([\"rustc\", \"--version\"], text=True).split()[1].split(\"-\")[0]\nif tuple(map(int, v.split(\".\"))) < (1, 75):\n raise SystemExit(\"rustc too old\")\n"]}, "note": ""} {"id": "rust-version-makefile", "rows": ["2026-11-12-rust-1-100-version-checks"], "rowIds": [], "breakClass": "stops-working", "prompt": "Makefile target `check-rust` that fails if rustc is older than 1.80, for a project whose MSRV is 1.80.", "check": {"type": "exec_rust", "lang": "make", "min": "1.80"}, "fixtures": {"fail": ["check-rust:\n\t@v=$$(rustc --version | awk '{print $$2}'); \\\n\tif [ \"$$(printf '%s\\n' \"$$v\" 1.80 | sort | head -1)\" != \"1.80\" ]; then echo \"rustc too old\"; exit 1; fi\n"], "pass": ["check-rust:\n\t@v=$$(rustc --version | awk '{print $$2}'); \\\n\tprintf '%s\\n' 1.80.0 \"$${v%%-*}\" | sort -V -C || { echo \"rustc too old\"; exit 1; }\n"]}, "note": ""} {"id": "asyncio-dual-decorator", "rows": ["2026-10-13-python-3-16-asyncio-policy-removal"], "rowIds": [], "breakClass": "pre-release", "prompt": "Python: write a @timed decorator that logs how long a function takes and works on both regular functions and async def functions.", "check": {"type": "regex", "fail": ["\\basyncio\\.iscoroutinefunction\\b"], "all_fail": [], "pass": ["\\binspect\\.(iscoroutinefunction|markcoroutinefunction)\\b"], "flags": "i", "mixed": [], "guard": "\\bsys\\.version_info\\b", "baseline_pass": false, "already": []}, "fixtures": {"fail": ["if asyncio.iscoroutinefunction(fn):\n"], "pass": ["if inspect.iscoroutinefunction(fn):\n"]}, "note": "Removed in Python 3.16.0a1 (pre-release); reported apart from stops-working rows"} {"id": "asyncio-windows-loop", "rows": ["2026-10-13-python-3-16-asyncio-policy-removal"], "rowIds": [], "breakClass": "pre-release", "prompt": "My aiohttp script prints 'RuntimeError: Event loop is closed' on Windows at exit. Fix it (show the full corrected script).", "check": {"type": "regex", "fail": ["\\b(set|get)_event_loop_policy\\b", "\\bWindows(Selector|Proactor)EventLoopPolicy\\b"], "all_fail": [], "pass": ["asyncio\\.run\\(", "asyncio\\.Runner\\("], "flags": "i", "mixed": [], "guard": "\\bsys\\.version_info\\b", "baseline_pass": true, "already": []}, "fixtures": {"fail": ["asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())\nasyncio.run(main())\n"], "pass": ["async with aiohttp.ClientSession() as s:\n ...\nawait asyncio.sleep(0.25)\n# entry point\nasyncio.run(main())\n"]}, "note": ""} {"id": "xslt-sitemap-pretty", "rows": ["2026-11-17-chrome-158-stops-running-xslt"], "rowIds": [], "breakClass": "stops-working", "prompt": "When people open my site's /sitemap.xml in a browser it's a wall of XML. Make it display as a readable, styled table while staying a valid sitemap for search engines.", "check": {"type": "regex", "fail": ["<\\?xml-stylesheet[^>]*(type=[\\\"']text/xsl[\\\"']|href=[\\\"'][^\\\"']+\\.xslt?[\\\"'])"], "all_fail": [], "pass": ["<\\?xml-stylesheet[^>]*type=[\\\"']text/css[\\\"']", "xsltproc|lxml\\.etree\\.XSLT|etree\\.XSLT\\(|new XSLTProcessor|sitemap\\.html"], "flags": "i", "mixed": ["]*xslt-polyfill|(import|require)[^\\n]*xslt-polyfill|npm\\s+(i|install)[^\\n]*xslt-polyfill"], "guard": null, "baseline_pass": false, "already": []}, "fixtures": {"fail": ["\n\n"], "pass": ["\n\n"]}, "note": ""} {"id": "xslt-rss-pretty", "rows": ["2026-11-17-chrome-158-stops-running-xslt"], "rowIds": [], "breakClass": "stops-working", "prompt": "Style my podcast's RSS feed (feed.xml) so a person who clicks it in Chrome sees a nice page with an explanation of how to subscribe, instead of raw XML.", "check": {"type": "regex", "fail": ["<\\?xml-stylesheet[^>]*(type=[\\\"']text/xsl[\\\"']|href=[\\\"'][^\\\"']+\\.xslt?[\\\"'])"], "all_fail": [], "pass": ["<\\?xml-stylesheet[^>]*type=[\\\"']text/css[\\\"']", "(?s)\\A(?!.*(XSLTProcessor|xsl:stylesheet|\\.xslt?\\b))(?=.*<(rss|feed)\\b)(?=.*]*xslt-polyfill|(import|require)[^\\n]*xslt-polyfill|npm\\s+(i|install)[^\\n]*xslt-polyfill"], "guard": null, "baseline_pass": false, "already": []}, "fixtures": {"fail": [""], "pass": ["\n"]}, "note": ""} {"id": "android-discard-dialog", "rows": ["2026-11-01-google-play-target-36-back-handlers"], "rowIds": [], "breakClass": "stops-working", "prompt": "Android (Kotlin, AppCompatActivity, targetSdk 36): in EditNoteActivity, when the user presses Back with unsaved changes, show a 'Discard changes?' dialog instead of leaving.", "check": {"type": "regex", "fail": ["override\\s+fun\\s+onBackPressed\\s*\\(", "public\\s+void\\s+onBackPressed\\s*\\(", "KEYCODE_BACK"], "all_fail": [], "pass": ["addCallback\\s*\\(", "OnBackPressedCallback\\s*\\(", "registerOnBackInvokedCallback", "\\bBackHandler\\s*[({]", "enableOnBackInvokedCallback=\\\"false\\\""], "flags": "i", "mixed": [], "guard": null, "baseline_pass": false, "already": []}, "fixtures": {"fail": ["override fun onBackPressed() {\n if (dirty) showDiscardDialog() else super.onBackPressed()\n}\n"], "pass": ["onBackPressedDispatcher.addCallback(this, object : OnBackPressedCallback(true) {\n override fun handleOnBackPressed() { showDiscardDialog() }\n})\n"]}, "note": ""} {"id": "android-webview-back", "rows": ["2026-11-01-google-play-target-36-back-handlers"], "rowIds": [], "breakClass": "stops-working", "prompt": "Android (Java, targetSdk 36): an Activity with a full-screen WebView where the Back button goes back in the web page history and only closes the screen when there's no history left.", "check": {"type": "regex", "fail": ["override\\s+fun\\s+onBackPressed\\s*\\(", "public\\s+void\\s+onBackPressed\\s*\\(", "KEYCODE_BACK"], "all_fail": [], "pass": ["addCallback\\s*\\(", "OnBackPressedCallback\\s*\\(", "registerOnBackInvokedCallback", "\\bBackHandler\\s*[({]", "enableOnBackInvokedCallback=\\\"false\\\""], "flags": "i", "mixed": [], "guard": null, "baseline_pass": false, "already": []}, "fixtures": {"fail": ["@Override\npublic boolean onKeyDown(int keyCode, KeyEvent event) {\n if (keyCode == KeyEvent.KEYCODE_BACK && web.canGoBack()) { web.goBack(); return true; }\n"], "pass": ["getOnBackPressedDispatcher().addCallback(this, new OnBackPressedCallback(true) {\n @Override public void handleOnBackPressed() { if (web.canGoBack()) web.goBack(); else finish(); }\n});\n"]}, "note": ""} {"id": "mysql-subscriptions", "rows": ["2008-01-20-mysql-timestamp-2038-limit"], "rowIds": [], "breakClass": "standing-limit", "prompt": "MySQL 8.4 CREATE TABLE for customer subscriptions: id, customer_id, plan, starts_at, ends_at (lifetime plans run 30 years), created_at. Include sensible indexes.", "check": {"type": "regex", "fail": ["[`\\\"]?\\bends_at[`\\\"]?\\s+TIMESTAMP\\b"], "all_fail": [], "pass": ["[`\\\"]?\\bends_at[`\\\"]?\\s+(DATETIME|DATE)\\b"], "flags": "i", "mixed": [], "guard": null, "baseline_pass": false, "already": []}, "fixtures": {"fail": [" ends_at TIMESTAMP NOT NULL,\n"], "pass": [" ends_at DATETIME NOT NULL,\n"]}, "note": ""} {"id": "mysql-loans", "rows": ["2008-01-20-mysql-timestamp-2038-limit"], "rowIds": [], "breakClass": "standing-limit", "prompt": "MySQL schema for a mortgage servicing app: a loans table with principal, rate, originated_at and matures_at (terms up to 40 years), and a payments table.", "check": {"type": "regex", "fail": ["[`\\\"]?\\bmatures_at[`\\\"]?\\s+TIMESTAMP\\b"], "all_fail": [], "pass": ["[`\\\"]?\\bmatures_at[`\\\"]?\\s+(DATETIME|DATE)\\b"], "flags": "i", "mixed": [], "guard": null, "baseline_pass": false, "already": []}, "fixtures": {"fail": [" matures_at TIMESTAMP NOT NULL,\n"], "pass": [" matures_at DATE NOT NULL,\n"]}, "note": ""} {"id": "jgit-ssh-clone", "rows": ["2027-01-13-github-ssh-sha1-rsa-removed"], "rowIds": [], "breakClass": "stops-working", "prompt": "Java (Maven): clone a private GitHub repository over SSH with JGit, authenticating with my existing RSA key at ~/.ssh/id_rsa. Show the pom.xml dependencies and the Java code.", "check": {"type": "regex", "fail": ["jsch[\\s\\S]{0,200}?|com\\.jcraft[:.]jsch|org\\.eclipse\\.jgit\\.ssh\\.jsch|JschConfigSessionFactory"], "all_fail": [], "pass": ["com\\.github\\.mwiede", "org\\.eclipse\\.jgit\\.ssh\\.apache", "SshdSessionFactory"], "flags": "i", "mixed": [], "guard": null, "baseline_pass": false, "already": []}, "fixtures": {"fail": ["org.eclipse.jgitorg.eclipse.jgit.ssh.jsch\n"], "pass": ["org.eclipse.jgitorg.eclipse.jgit.ssh.apache\n"]}, "note": "Original JSch (com.jcraft) signs RSA with SHA-1 only; github.com refuses that from 2027-01-13 (calendar test: JSch fork com.github.mwiede 0.1.66 passed)"} {"id": "rails-gemfile-new", "rows": ["2026-11-07-rails-8-0-security-support-ends"], "rowIds": [], "breakClass": "support-ends", "prompt": "Gemfile for a new Rails API-only app with PostgreSQL, Sidekiq and RSpec. Pin versions the way a production app should.", "check": {"type": "rails"}, "fixtures": {"fail": ["gem \"rails\", \"~> 8.0.0\""], "pass": ["gem \"rails\", \"~> 8.1.0\""]}, "note": "Security support for 8.0 ended 2026-11-07; 7.2 and older already unsupported. A constraint that allows >= 8.1 is PASS"} {"id": "rails-upgrade-target", "rows": ["2026-11-07-rails-8-0-security-support-ends"], "rowIds": [], "breakClass": "support-ends", "prompt": "We're on Rails 7.0. Which Rails version should we upgrade to for long-term security support? Give a step-by-step upgrade plan and end with the final Gemfile line for that target.", "check": {"type": "rails"}, "fixtures": {"fail": ["gem \"rails\", \"~> 7.2\""], "pass": ["gem \"rails\", \"~> 8.1\""]}, "note": ""} {"id": "brew-node18-setup", "rows": ["2026-10-30-homebrew-removes-node-18"], "rowIds": [], "breakClass": "stops-working", "prompt": "Our legacy app's package.json says engines.node 18.x. Write a macOS setup script (bash) for new developers that installs the right Node version and the dependencies.", "check": {"type": "regex", "fail": ["brew\\s+install\\s+[^\\n]*\\bnode@18\\b", "^\\s*brew\\s+[\\\"']node@18[\\\"']", "(?s)\\A(?=.*\\b(\\w+)=[\\\"']?18(?:\\.\\w+)*[\\\"']?\\s*$)(?=.*brew\\s+install\\s+[^\\n]*\\bnode@[\\\"']?\\$\\{?\\1\\b)"], "all_fail": [], "pass": ["\\b(nvm|fnm|volta|asdf|mise|n)\\s+(install|use|pin|global|local)\\b[^\\n]*\\b18\\b", "\\b(volta|mise)\\s+(install|use|pin)\\s+(-\\S+\\s+)*node@18\\b", "brew\\s+install\\s+[^\\n]*\\bnode@(2[4-9])\\b", "(?s)\\A(?=.*\\b(\\w+)=[\\\"']?18(?:\\.\\w+)*[\\\"']?\\s*$)(?=.*\\b(nvm|fnm|volta|asdf|mise|n)\\s+(install|use|pin|global|local)\\b[^\\n]*\\$\\{?\\1\\b)"], "flags": "im", "mixed": [], "guard": null, "baseline_pass": false, "already": []}, "fixtures": {"fail": ["brew install node@18\nbrew link --force node@18\n", "NODE_VERSION=18\nbrew install \"node@${NODE_VERSION}\"\n"], "pass": ["brew install fnm\nfnm install 18\nfnm use 18\n", "V=18\nmise use node@$V\n"]}, "note": ""} {"id": "brew-protoc21-ci", "rows": ["2027-01-09-homebrew-removes-protobuf-21"], "rowIds": [], "breakClass": "stops-working", "prompt": "GitHub Actions step for our macOS job: our generated code requires protoc 21.x exactly (protobuf 3.21). Install it.", "check": {"type": "regex", "fail": ["brew\\s+install\\s+[^\\n]*\\bprotobuf@21\\b"], "all_fail": [], "pass": ["github\\.com/protocolbuffers/protobuf/releases/download/v(3\\.)?21\\.|arduino/setup-protoc|bufbuild/|protoc-21\\.\\d+-osx", "(?s)\\A(?=.*\\b\\w*PROTOC\\w*=[\\\"']?(3\\.)?21\\.\\d+)(?=.*github\\.com/protocolbuffers/protobuf/releases/download/)"], "flags": "i", "mixed": [], "guard": null, "baseline_pass": false, "already": []}, "fixtures": {"fail": [" - run: brew install protobuf@21\n"], "pass": [" - run: curl -LO https://github.com/protocolbuffers/protobuf/releases/download/v21.12/protoc-21.12-osx-universal_binary.zip\n"]}, "note": ""}