# Changelog ## Score - CAI 63 → 63 (+0.3) - Rubric changed (rubric-2026.09.11 → rubric-2026.09.18) — scores are not directly comparable. ## Lenses - Code Health 88 → 88 (-0.7) - Architecture 94 → 85 (-8.9) - Maturity 66 → 66 (+0.2) - Readiness 49 → 51 (+2.1) - Security 79 → 82 (+3.2) - Performance 79 (new) ## Resolved (244) - AXTranslationRequest.discoverRemoteElements (cognitive 30) (FBSimulatorControl/Commands/AXTranslationRequest.swift) - AXTranslationRequest.discoverRemoteElements (cyclomatic 17) (FBSimulatorControl/Commands/AXTranslationRequest.swift) - AXTreeWalk.resolveMarker (cognitive 20) (FBSimulatorControl/Commands/AXTreeWalk.swift) - Boundary-crossing change coupling: IDBCommandExecutor.swift ↔ FBMacDevice+Commands.swift (CompanionLib/IDBCommandExecutor.swift) - Boundary-crossing change coupling: ReplMethodHandler.swift ↔ Shared.swift (Companion/SwiftServer/MethodHandlers/ReplMethodHandler.swift) - Boundary-crossing change coupling: SimulatorCrashLogCommands.swift ↔ SimulatorXCTestCommands.swift (FBSimulatorControl/Commands/SimulatorCrashLogCommands.swift) - Boundary-crossing change coupling: SimulatorDapServerCommands.swift ↔ SimulatorXCTestCommands.swift (FBSimulatorControl/Commands/SimulatorDapServerCommands.swift) - Boundary-crossing change coupling: SimulatorLocationCommands.swift ↔ SimulatorXCTestCommands.swift (FBSimulatorControl/Commands/SimulatorLocationCommands.swift) - Boundary-crossing change coupling: SimulatorMemoryCommands.swift ↔ SimulatorXCTestCommands.swift (FBSimulatorControl/Commands/SimulatorMemoryCommands.swift) - Boundary-crossing change coupling: SimulatorNotificationCommands.swift ↔ SimulatorXCTestCommands.swift (FBSimulatorControl/Commands/SimulatorNotificationCommands.swift) - Change coupling clique: InstrumentsRunMethodHandler.swift, LaunchMethodHandler.swift, VideoStreamMethodHandler.swift, XctraceRecordMethodHandler.swift (Companion/SwiftServer/MethodHandlers/InstrumentsRunMethodHandler.swift) - Change coupling: CompanionServiceProvider.swift ↔ CompanionServiceInterceptors.swift (Companion/SwiftServer/CompanionServiceProvider.swift) - Change coupling: CompanionServiceProvider.swift ↔ LoggingInterceptor.swift (Companion/SwiftServer/CompanionServiceProvider.swift) - Change coupling: DescribeMethodHandler.swift ↔ XCTestRunMethodHandler.swift (Companion/SwiftServer/MethodHandlers/DescribeMethodHandler.swift) - Change coupling: DeviceApplicationCommands.swift ↔ DeviceDeveloperDiskImageCommands.swift (FBDeviceControl/Commands/DeviceApplicationCommands.swift) - Change coupling: SimulatorApplicationCommands.swift ↔ SimulatorCrashLogCommands.swift (FBSimulatorControl/Commands/SimulatorApplicationCommands.swift) - Change coupling: SimulatorConfiguration+CoreSimulator.swift ↔ SimulatorSet.swift (FBSimulatorControl/Configuration/SimulatorConfiguration+CoreSimulator.swift) - Change coupling: SimulatorDapServerCommands.swift ↔ SimulatorDebuggerCommands.swift (FBSimulatorControl/Commands/SimulatorDapServerCommands.swift) - Change-coupling hub: SimulatorLocationCommands.swift → SimulatorApplicationCommands.swift, SimulatorCrashLogCommands.swift, SimulatorDebuggerCommands.swift, SimulatorLogCommands.swift, SimulatorMemoryCommands.swift, SimulatorNotificationCommands.swift, SimulatorProcessSpawnCommands.swift, SimulatorVideoRecordingCommands.swift (FBSimulatorControl/Commands/SimulatorLocationCommands.swift) - Change-coupling hub: SimulatorMemoryCommands.swift → SimulatorApplicationCommands.swift, SimulatorDapServerCommands.swift, SimulatorLogCommands.swift, SimulatorMediaCommands.swift, SimulatorNotificationCommands.swift, SimulatorProcessSpawnCommands.swift (FBSimulatorControl/Commands/SimulatorMemoryCommands.swift) - …and 224 more ## New (416) - AXBridgeDisplayInventory.decode (cognitive 16) (FBSimulatorControl/Commands/SimulatorDisplayInteraction.swift) - AXBridgeDisplayInventory.decode (cyclomatic 17) (FBSimulatorControl/Commands/SimulatorDisplayInteraction.swift) - AXBridgeUIAutomation.frontmostQuiescence (cognitive 26) (FBSimulatorControl/Accessibility/AXBridgeUIAutomation.swift) - AXTranslationRequest.discoverRemoteElements (cognitive 33) (FBSimulatorControl/Accessibility/AXTranslationRequest.swift) - AXTranslationRequest.discoverRemoteElements (cyclomatic 18) (FBSimulatorControl/Accessibility/AXTranslationRequest.swift) - AXTreeWalk.resolveMarker (cognitive 20) (FBSimulatorControl/Accessibility/AXTreeWalk.swift) - AccessibilityActionRequestTranslation.action (cyclomatic 16) (CompanionLib/SwiftServer/ValueTransformers/AccessibilityActionRequestTranslation.swift) - AccessibilityElementFilter.keeps (cognitive 18) (FBControlCore/Accessibility/AccessibilityRequestOptions.swift) - AccessibilityRequest.FBAXBridgeBuildNode (cognitive 47) (SimulatorFrameworkBridge/Swift/AccessibilityService.swift) - AccessibilityRequest.FBAXBridgeBuildNode (cyclomatic 30) (SimulatorFrameworkBridge/Swift/AccessibilityService.swift) - AccessibilityRequest.FBAXBridgeBuildTranslatorNode (cognitive 21) (SimulatorFrameworkBridge/Swift/AccessibilityService.swift) - AccessibilityRequest.FBAXBridgeBuildTranslatorNode (cyclomatic 19) (SimulatorFrameworkBridge/Swift/AccessibilityService.swift) - AccessibilityRequest.FBAXBridgeDispatchRequest (cognitive 56) (SimulatorFrameworkBridge/Swift/AccessibilityService.swift) - AccessibilityRequest.FBAXBridgeDispatchRequest (cyclomatic 46) (SimulatorFrameworkBridge/Swift/AccessibilityService.swift) - AccessibilityRequest.FBAXBridgeHitTest (cyclomatic 16) (SimulatorFrameworkBridge/Swift/AccessibilityService.swift) - AccessibilityRequest.FBAXBridgeNodeFromSnapshot (cognitive 25) (SimulatorFrameworkBridge/Swift/AccessibilityService.swift) - AccessibilityRequest.FBAXBridgeNodeFromSnapshot (cyclomatic 16) (SimulatorFrameworkBridge/Swift/AccessibilityService.swift) - AccessibilityRequest.FBAXBridgeScanForAlert (cognitive 16) (SimulatorFrameworkBridge/Swift/AccessibilityService.swift) - AccessibilityRequest.FBAXBridgeSetValue (cognitive 30) (SimulatorFrameworkBridge/Swift/AccessibilityService.swift) - AccessibilityWaitCommand.run_with_client (cognitive 17) (idb/cli/commands/accessibility.py) - …and 396 more ## Changes since last survey - 300 commits — 298 feature/other, 2 fixes ## By area - FBSimulatorControlTests/Tests — 39 commits - FBSimulatorControl/Commands — 26 commits - FBSimulatorControl/HID — 25 commits - CompanionLib/SwiftServer — 17 commits - EndToEndTests/harness.py — 16 commits - SimulatorFrameworkBridge/Swift — 16 commits - SimulatorFrameworkBridge/Runtime — 14 commits - FBControlCoreTests/Tests — 10 commits - FBSimulatorControl/Accessibility — 10 commits - idb/common — 10 commits - EndToEndTests/accessibility_tests.py — 8 commits - EndToEndTests/test_accessibility.py — 8 commits - .github/workflows — 7 commits - CompanionTests/Tests — 7 commits - FBSimulatorControl/CoreDevice — 6 commits - SimulatorFrameworkBridgeLibTests/AccessibilityRuntimeTests.swift — 6 commits - idb/grpc — 6 commits - CompanionLib/IDBCommandExecutor.swift — 4 commits - EndToEndTests/documentation.py — 4 commits - FBControlCore/Applications — 4 commits ## Notable commits - fix: Drive the accessibility tests against ReplHost's fixed screen instead of Settings - fix: Give ReplHost a fixed screen for the accessibility tests - change: Add a fixture whose accessibility answers block the main thread - change: Add a harness step that denies permission prompts left on screen - change: Add a termination deadline to Subprocess.run - change: Add an extensible Shimulator protocol - change: Add eject hardware button - change: Add homebrew.py to list, install and inspect idb builds - change: Add the install progress model - change: Add top-level oncall or cleanup: `fbcode/idb` - change: Advertise the compressions a companion can extract - change: Allow frame reordering in clips explicitly - change: Attribute Python telemetry at the writer - change: Bind HID geometry to display targets - change: Bind the AX quiescence monitor behind FBAXRuntime - change: Bound a CoreDevice stream with the channel's deadline and cancellation - change: Build every simulator XPC connection through one connector - change: Build the hinge and orientation vendor reports in one place - change: Call FBActivityRecord.from directly in its tests - change: Capture the main screen when a display report cannot select a display - …and 280 more