diff --git a/features/clear-site-data.yml.dist b/features/clear-site-data.yml.dist
index a73a590e70a..ac01a6a2c57 100644
--- a/features/clear-site-data.yml.dist
+++ b/features/clear-site-data.yml.dist
@@ -41,11 +41,14 @@ compat_features:
   #   safari_ios: "17"
   - http.headers.Clear-Site-Data.wildcard
 
-  # baseline: false
+  # baseline: low
+  # baseline_low_date: 2025-04-29
   # support:
   #   chrome: "65"
   #   chrome_android: "65"
   #   edge: ≤79
+  #   firefox: "138"
+  #   firefox_android: "138"
   #   safari: "17"
   #   safari_ios: "17"
   - http.headers.Clear-Site-Data.cache
diff --git a/features/customizable-select.yml.dist b/features/customizable-select.yml.dist
index c84998d8d0e..3134f721b0a 100644
--- a/features/customizable-select.yml.dist
+++ b/features/customizable-select.yml.dist
@@ -8,8 +8,20 @@ status:
     chrome_android: "134"
     edge: "134"
 compat_features:
-  - css.properties.appearance.base-select
+  # baseline: false
+  # support:
+  #   chrome: "133"
+  #   chrome_android: "133"
+  #   edge: "133"
   - css.selectors.checkmark
-  - css.selectors.picker
   - css.selectors.picker-icon
+
+  # ⬇️ Same status as overall feature ⬇️
+  # baseline: false
+  # support:
+  #   chrome: "134"
+  #   chrome_android: "134"
+  #   edge: "134"
+  - css.properties.appearance.base-select
+  - css.selectors.picker
   - html.elements.selectedcontent
diff --git a/features/draft/spec/css-color-hdr-1.yml.dist b/features/draft/spec/css-color-hdr-1.yml.dist
index d265008de13..4024795053b 100644
--- a/features/draft/spec/css-color-hdr-1.yml.dist
+++ b/features/draft/spec/css-color-hdr-1.yml.dist
@@ -3,7 +3,10 @@
 
 status:
   baseline: false
-  support: {}
+  support:
+    chrome: "136"
+    chrome_android: "136"
+    edge: "136"
 compat_features:
   - css.properties.dynamic-range-limit
   - css.properties.dynamic-range-limit.constrained
diff --git a/features/draft/spec/fedcm-1.yml.dist b/features/draft/spec/fedcm-1.yml.dist
index 4d7e6d3a235..e730f370556 100644
--- a/features/draft/spec/fedcm-1.yml.dist
+++ b/features/draft/spec/fedcm-1.yml.dist
@@ -3,7 +3,10 @@
 
 status:
   baseline: false
-  support: {}
+  support:
+    chrome: "136"
+    chrome_android: "136"
+    edge: "136"
 compat_features:
   # baseline: false
   # support:
@@ -45,5 +48,8 @@ compat_features:
 
   # ⬇️ Same status as overall feature ⬇️
   # baseline: false
-  # support: {}
+  # support:
+  #   chrome: "136"
+  #   chrome_android: "136"
+  #   edge: "136"
   - api.IdentityCredential.configURL
diff --git a/features/draft/spec/html.yml.dist b/features/draft/spec/html.yml.dist
index c6131cb923c..04f0f0a2fc1 100644
--- a/features/draft/spec/html.yml.dist
+++ b/features/draft/spec/html.yml.dist
@@ -678,6 +678,18 @@ compat_features:
   #   safari_ios: "16"
   - api.HTMLBaseElement.href.forbid_special_characters
 
+  # baseline: low
+  # baseline_low_date: 2025-04-29
+  # support:
+  #   chrome: "127"
+  #   chrome_android: "127"
+  #   edge: "127"
+  #   firefox: "138"
+  #   firefox_android: "138"
+  #   safari: "18"
+  #   safari_ios: "18"
+  - html.elements.script.type.importmap.integrity
+
   # baseline: false
   # support:
   #   chrome: "4"
@@ -762,6 +774,16 @@ compat_features:
   - api.HTMLVideoElement.playsInline
   - html.elements.video.playsinline
 
+  # baseline: false
+  # support:
+  #   chrome: "90"
+  #   chrome_android: "90"
+  #   edge: "90"
+  #   firefox: "138"
+  #   firefox_android: "138"
+  - api.Window.originAgentCluster
+  - http.headers.Origin-Agent-Cluster
+
   # baseline: false
   # support:
   #   chrome: "92"
@@ -790,15 +812,6 @@ compat_features:
   #   firefox_android: "123"
   - http.status.103.preload
 
-  # baseline: false
-  # support:
-  #   chrome: "127"
-  #   chrome_android: "127"
-  #   edge: "127"
-  #   safari: "18"
-  #   safari_ios: "18"
-  - html.elements.script.type.importmap.integrity
-
   # baseline: false
   # support:
   #   chrome: "131"
@@ -808,6 +821,15 @@ compat_features:
   #   safari_ios: "18.4"
   - http.headers.Cross-Origin-Opener-Policy.noopener-allow-popups
 
+  # baseline: false
+  # support:
+  #   chrome: "133"
+  #   chrome_android: "133"
+  #   edge: "133"
+  #   safari: "18.4"
+  #   safari_ios: "18.4"
+  - html.elements.script.type.importmap.multiple_import_maps
+
   # baseline: false
   # support:
   #   chrome: "96"
@@ -856,14 +878,6 @@ compat_features:
   - http.headers.Permissions-Policy.autoplay
   - http.headers.Permissions-Policy.cross-origin-isolated
 
-  # baseline: false
-  # support:
-  #   chrome: "90"
-  #   chrome_android: "90"
-  #   edge: "90"
-  - api.Window.originAgentCluster
-  - http.headers.Origin-Agent-Cluster
-
   # baseline: false
   # support:
   #   chrome: "99"
@@ -901,7 +915,6 @@ compat_features:
   #   chrome_android: "133"
   #   edge: "133"
   - api.CustomElementRegistry.define.connectedMoveCallback_lifecycle_callback
-  - html.elements.script.type.importmap.multiple_import_maps
 
   # baseline: false
   # support:
@@ -912,6 +925,14 @@ compat_features:
   - api.OffscreenCanvasRenderingContext2D.getContextAttributes
   - html.elements.dialog.closedby
 
+  # baseline: false
+  # support:
+  #   chrome: "136"
+  #   chrome_android: "136"
+  #   edge: "136"
+  - api.CanvasRenderingContext2D.lang
+  - api.OffscreenCanvasRenderingContext2D.lang
+
   # baseline: false
   # support:
   #   safari: "9"
@@ -947,10 +968,8 @@ compat_features:
   # ⬇️ Same status as overall feature ⬇️
   # baseline: false
   # support: {}
-  - api.CanvasRenderingContext2D.lang
   - api.HTMLButtonElement.command.request-close
   - api.Navigator.authentication
-  - api.OffscreenCanvasRenderingContext2D.lang
   - html.elements.hr.hr_in_select
   - html.elements.input.alpha
   - html.elements.input.colorspace
diff --git a/features/draft/spec/login-status.yml.dist b/features/draft/spec/login-status.yml.dist
index 70e20cec891..86635a44fed 100644
--- a/features/draft/spec/login-status.yml.dist
+++ b/features/draft/spec/login-status.yml.dist
@@ -7,6 +7,8 @@ status:
     chrome: "120"
     chrome_android: "120"
     edge: "120"
+    firefox: "138"
+    firefox_android: "138"
 compat_features:
   - api.Navigator.login
   - api.NavigatorLogin
diff --git a/features/draft/spec/mediacapture-surface-control.yml.dist b/features/draft/spec/mediacapture-surface-control.yml.dist
index 14e9fce1576..2b4d060fb78 100644
--- a/features/draft/spec/mediacapture-surface-control.yml.dist
+++ b/features/draft/spec/mediacapture-surface-control.yml.dist
@@ -3,7 +3,9 @@
 
 status:
   baseline: false
-  support: {}
+  support:
+    chrome: "136"
+    edge: "136"
 compat_features:
   - api.CaptureController.decreaseZoomLevel
   - api.CaptureController.forwardWheel
diff --git a/features/draft/spec/mst-content-hint.yml.dist b/features/draft/spec/mst-content-hint.yml.dist
index 084ad28e9cf..4569cc2ba2c 100644
--- a/features/draft/spec/mst-content-hint.yml.dist
+++ b/features/draft/spec/mst-content-hint.yml.dist
@@ -10,22 +10,24 @@ status:
     safari: "12.1"
     safari_ios: "12.2"
 compat_features:
-  # baseline: false
-  # support:
-  #   chrome: "70"
-  #   chrome_android: "70"
-  #   edge: "79"
-  #   safari: "12.1"
-  #   safari_ios: "12.2"
-  - api.MediaStreamTrack.contentHint
-
-  # ⬇️ Same status as overall feature ⬇️
-  # baseline: false
+  # baseline: low
+  # baseline_low_date: 2025-04-29
   # support:
   #   chrome: "83"
   #   chrome_android: "83"
   #   edge: "83"
+  #   firefox: "138"
+  #   firefox_android: "138"
   #   safari: "12.1"
   #   safari_ios: "12.2"
   - api.RTCRtpSender.getParameters.return_object_property_degradationPreference
   - api.RTCRtpSender.setParameters.parameters_degradationPreference_parameter
+
+  # baseline: false
+  # support:
+  #   chrome: "70"
+  #   chrome_android: "70"
+  #   edge: "79"
+  #   safari: "12.1"
+  #   safari_ios: "12.2"
+  - api.MediaStreamTrack.contentHint
diff --git a/features/draft/spec/prefetch.yml.dist b/features/draft/spec/prefetch.yml.dist
index 08381d41366..2570e826ce2 100644
--- a/features/draft/spec/prefetch.yml.dist
+++ b/features/draft/spec/prefetch.yml.dist
@@ -3,6 +3,9 @@
 
 status:
   baseline: false
-  support: {}
+  support:
+    chrome: "136"
+    chrome_android: "136"
+    edge: "136"
 compat_features:
   - http.headers.Sec-Speculation-Tags
diff --git a/features/draft/spec/speculation-rules.yml.dist b/features/draft/spec/speculation-rules.yml.dist
index d3ae64b1c30..cd8cb931410 100644
--- a/features/draft/spec/speculation-rules.yml.dist
+++ b/features/draft/spec/speculation-rules.yml.dist
@@ -3,6 +3,9 @@
 
 status:
   baseline: false
-  support: {}
+  support:
+    chrome: "136"
+    chrome_android: "136"
+    edge: "136"
 compat_features:
   - html.elements.script.type.speculationrules.tag
diff --git a/features/draft/spec/webaudio-1-1.yml.dist b/features/draft/spec/webaudio-1-1.yml.dist
index edc98dc4c97..38562ff3a92 100644
--- a/features/draft/spec/webaudio-1-1.yml.dist
+++ b/features/draft/spec/webaudio-1-1.yml.dist
@@ -3,7 +3,9 @@
 
 status:
   baseline: false
-  support: {}
+  support:
+    firefox: "138"
+    firefox_android: "138"
 compat_features:
   - api.AudioWorklet.port
   - api.AudioWorkletGlobalScope.port
diff --git a/features/draft/spec/webgpu.yml.dist b/features/draft/spec/webgpu.yml.dist
index d01af9356dc..5cf9c3975be 100644
--- a/features/draft/spec/webgpu.yml.dist
+++ b/features/draft/spec/webgpu.yml.dist
@@ -3,7 +3,10 @@
 
 status:
   baseline: false
-  support: {}
+  support:
+    chrome: "136"
+    chrome_android: "136"
+    edge: "136"
 compat_features:
   # baseline: false
   # support:
@@ -21,5 +24,8 @@ compat_features:
 
   # ⬇️ Same status as overall feature ⬇️
   # baseline: false
-  # support: {}
+  # support:
+  #   chrome: "136"
+  #   chrome_android: "136"
+  #   edge: "136"
   - api.GPUAdapterInfo.isFallbackAdapter
diff --git a/features/grid-animation.yml.dist b/features/grid-animation.yml.dist
index a1ba0511b88..d57d1be838c 100644
--- a/features/grid-animation.yml.dist
+++ b/features/grid-animation.yml.dist
@@ -2,8 +2,9 @@
 # Do not edit this file by hand. Edit the source file instead!
 
 status:
-  baseline: low
+  baseline: high
   baseline_low_date: 2022-10-27
+  baseline_high_date: 2025-04-27
   support:
     chrome: "107"
     chrome_android: "107"
diff --git a/features/is-error.yml.dist b/features/is-error.yml.dist
index f9aa6b2425b..156978a2810 100644
--- a/features/is-error.yml.dist
+++ b/features/is-error.yml.dist
@@ -7,5 +7,7 @@ status:
     chrome: "134"
     chrome_android: "134"
     edge: "134"
+    firefox: "138"
+    firefox_android: "138"
 compat_features:
   - javascript.builtins.Error.isError
diff --git a/features/js-modules.yml.dist b/features/js-modules.yml.dist
index c5d70f0d34d..0e158e28cb8 100644
--- a/features/js-modules.yml.dist
+++ b/features/js-modules.yml.dist
@@ -121,11 +121,14 @@ compat_features:
   #   safari_ios: "15"
   - api.Worklet.ecmascript_modules
 
-  # baseline: false
+  # baseline: low
+  # baseline_low_date: 2025-04-29
   # support:
   #   chrome: "123"
   #   chrome_android: "123"
   #   edge: "123"
+  #   firefox: "138"
+  #   firefox_android: "138"
   #   safari: "17.2"
   #   safari_ios: "17.2"
   - javascript.statements.import.import_attributes
diff --git a/features/json-modules.yml.dist b/features/json-modules.yml.dist
index db05af85667..e1f36174aeb 100644
--- a/features/json-modules.yml.dist
+++ b/features/json-modules.yml.dist
@@ -10,6 +10,18 @@ status:
     safari: "17.2"
     safari_ios: "17.2"
 compat_features:
+  # baseline: low
+  # baseline_low_date: 2025-04-29
+  # support:
+  #   chrome: "123"
+  #   chrome_android: "123"
+  #   edge: "123"
+  #   firefox: "138"
+  #   firefox_android: "138"
+  #   safari: "17.2"
+  #   safari_ios: "17.2"
+  - javascript.statements.import.import_attributes.type_json
+
   # baseline: false
   # support:
   #   chrome: "91"
@@ -18,13 +30,3 @@ compat_features:
   #   safari: "15"
   #   safari_ios: "15"
   - javascript.grammar.trailing_commas.trailing_commas_in_dynamic_import
-
-  # ⬇️ Same status as overall feature ⬇️
-  # baseline: false
-  # support:
-  #   chrome: "123"
-  #   chrome_android: "123"
-  #   edge: "123"
-  #   safari: "17.2"
-  #   safari_ios: "17.2"
-  - javascript.statements.import.import_attributes.type_json
diff --git a/features/masks.yml.dist b/features/masks.yml.dist
index 7be8ea67b42..a18e2107b0d 100644
--- a/features/masks.yml.dist
+++ b/features/masks.yml.dist
@@ -43,18 +43,6 @@ compat_features:
   - css.properties.mask-repeat
   - css.properties.mask-size
 
-  # baseline: false
-  # support:
-  #   chrome: "120"
-  #   chrome_android: "120"
-  #   edge: "120"
-  #   safari: "15.4"
-  #   safari_ios: "15.4"
-  - css.properties.mask-clip.border
-  - css.properties.mask-clip.content
-  - css.properties.mask-clip.padding
-  - css.properties.mask-clip.text
-
   # baseline: false
   # support:
   #   chrome: "120"
@@ -70,6 +58,10 @@ compat_features:
   # support:
   #   safari: "15.4"
   #   safari_ios: "15.4"
+  - css.properties.mask-clip.border
+  - css.properties.mask-clip.content
+  - css.properties.mask-clip.padding
+  - css.properties.mask-clip.text
   - css.properties.mask-origin.border
   - css.properties.mask-origin.content
   - css.properties.mask-origin.padding
diff --git a/features/notifications.yml.dist b/features/notifications.yml.dist
index f3da97d29d3..a1e2b888a97 100644
--- a/features/notifications.yml.dist
+++ b/features/notifications.yml.dist
@@ -200,6 +200,14 @@ compat_features:
   #   firefox_android: "41"
   - api.Notification.worker_support
 
+  # baseline: false
+  # support:
+  #   chrome: "48"
+  #   edge: "18"
+  #   firefox: "138"
+  #   firefox_android: "138"
+  - api.Notification.maxActions_static
+
   # baseline: false
   # support:
   #   chrome: "62"
@@ -262,12 +270,6 @@ compat_features:
   #   edge: "17"
   - api.Notification.requireInteraction
 
-  # baseline: false
-  # support:
-  #   chrome: "48"
-  #   edge: "18"
-  - api.Notification.maxActions_static
-
   # baseline: false
   # support:
   #   chrome: "50"
diff --git a/features/print-color-adjust.yml.dist b/features/print-color-adjust.yml.dist
index 3d5eee9320e..2c2c8f2bd49 100644
--- a/features/print-color-adjust.yml.dist
+++ b/features/print-color-adjust.yml.dist
@@ -4,6 +4,8 @@
 status:
   baseline: false
   support:
+    chrome: "136"
+    chrome_android: "136"
     firefox: "97"
     firefox_android: "97"
     safari: "15.4"
diff --git a/features/regexp-escape.yml.dist b/features/regexp-escape.yml.dist
index 03e035dfab6..699fd3549a4 100644
--- a/features/regexp-escape.yml.dist
+++ b/features/regexp-escape.yml.dist
@@ -2,8 +2,12 @@
 # Do not edit this file by hand. Edit the source file instead!
 
 status:
-  baseline: false
+  baseline: low
+  baseline_low_date: 2025-05-01
   support:
+    chrome: "136"
+    chrome_android: "136"
+    edge: "136"
     firefox: "134"
     firefox_android: "134"
     safari: "18.2"
diff --git a/features/svg.yml.dist b/features/svg.yml.dist
index 7cfd53426ac..1489d8e02d9 100644
--- a/features/svg.yml.dist
+++ b/features/svg.yml.dist
@@ -1761,6 +1761,32 @@ compat_features:
   #   safari_ios: "18.4"
   - api.SVGImageElement.decode
 
+  # baseline: low
+  # baseline_low_date: 2025-05-01
+  # support:
+  #   chrome: "136"
+  #   chrome_android: "136"
+  #   edge: "136"
+  #   firefox: "61"
+  #   firefox_android: "61"
+  #   safari: "14"
+  #   safari_ios: "14"
+  - api.SVGAElement.rel
+  - api.SVGAElement.relList
+
+  # baseline: low
+  # baseline_low_date: 2025-05-01
+  # support:
+  #   chrome: "136"
+  #   chrome_android: "136"
+  #   edge: "136"
+  #   firefox: "69"
+  #   firefox_android: "79"
+  #   safari: "12"
+  #   safari_ios: "12"
+  - api.SVGGeometryElement.isPointInFill.point_parameter_DOMPoint
+  - api.SVGGeometryElement.isPointInStroke.point_parameter_DOMPoint
+
   # baseline: false
   # support:
   #   chrome: "1"
@@ -1846,19 +1872,8 @@ compat_features:
   #   firefox_android: "61"
   #   safari: "14"
   #   safari_ios: "14"
-  - api.SVGAElement.rel
-  - api.SVGAElement.relList
   - svg.elements.a.rel
 
-  # baseline: false
-  # support:
-  #   firefox: "69"
-  #   firefox_android: "79"
-  #   safari: "12"
-  #   safari_ios: "12"
-  - api.SVGGeometryElement.isPointInFill.point_parameter_DOMPoint
-  - api.SVGGeometryElement.isPointInStroke.point_parameter_DOMPoint
-
   # baseline: false
   # support:
   #   chrome: "51"
diff --git a/features/top-level-await.yml b/features/top-level-await.yml
index b7eac83e0f9..1a45e5f349f 100644
--- a/features/top-level-await.yml
+++ b/features/top-level-await.yml
@@ -2,5 +2,11 @@ name: Top-level await
 description: The `await` keyword, when used at the top level of a module (outside of an async function), delays parent module execution until after a promise fulfills.
 spec: https://tc39.es/ecma262/multipage/ecmascript-language-functions-and-classes.html#sec-async-function-definitions
 group: javascript
+# TODO: https://github.com/web-platform-dx/web-features/issues/1971
+# Status changed: https://github.com/web-platform-dx/web-features/pull/2921/
+# 2025-05-02 — high → false — In Safari, simultaneous imports of a module with a top-level await fails with a ReferenceError.
+# References:
+# - https://github.com/mdn/browser-compat-data/pull/26510
+# - https://bugs.webkit.org/show_bug.cgi?id=242740
 compat_features:
   - javascript.operators.await.top_level
diff --git a/features/top-level-await.yml.dist b/features/top-level-await.yml.dist
index c39a7403a97..ee810bfe7b3 100644
--- a/features/top-level-await.yml.dist
+++ b/features/top-level-await.yml.dist
@@ -2,16 +2,12 @@
 # Do not edit this file by hand. Edit the source file instead!
 
 status:
-  baseline: high
-  baseline_low_date: 2021-09-20
-  baseline_high_date: 2024-03-20
+  baseline: false
   support:
     chrome: "89"
     chrome_android: "89"
     edge: "89"
     firefox: "89"
     firefox_android: "89"
-    safari: "15"
-    safari_ios: "15"
 compat_features:
   - javascript.operators.await.top_level
diff --git a/features/webrtc.yml.dist b/features/webrtc.yml.dist
index 7bae9903990..02cc7980f5e 100644
--- a/features/webrtc.yml.dist
+++ b/features/webrtc.yml.dist
@@ -1028,6 +1028,18 @@ compat_features:
   #   safari_ios: "11"
   - api.RTCDataChannel.binaryType.blob_value
 
+  # baseline: low
+  # baseline_low_date: 2025-04-29
+  # support:
+  #   chrome: "61"
+  #   chrome_android: "61"
+  #   edge: "79"
+  #   firefox: "138"
+  #   firefox_android: "138"
+  #   safari: "12.1"
+  #   safari_ios: "12.2"
+  - api.RTCCertificate.getFingerprints
+
   # baseline: false
   # support:
   #   chrome: "74"
@@ -1065,15 +1077,6 @@ compat_features:
   #   safari_ios: "11"
   - api.RTCPeerConnection.RTCPeerConnection.configuration_iceCandidatePoolSize_parameter
 
-  # baseline: false
-  # support:
-  #   chrome: "61"
-  #   chrome_android: "61"
-  #   edge: "79"
-  #   safari: "12.1"
-  #   safari_ios: "12.2"
-  - api.RTCCertificate.getFingerprints
-
   # baseline: false
   # support:
   #   chrome: "69"
diff --git a/package-lock.json b/package-lock.json
index 8b1f14e20dc..3d53e2c1952 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,7 +13,7 @@
       "devDependencies": {
         "@eslint/js": "^9.25.1",
         "@js-temporal/polyfill": "^0.5.1",
-        "@mdn/browser-compat-data": "^6.0.9",
+        "@mdn/browser-compat-data": "^6.0.11",
         "@types/caniuse-lite": "^1.0.4",
         "@types/diff": "^7.0.2",
         "@types/node": "^20.17.32",
@@ -807,9 +807,9 @@
       }
     },
     "node_modules/@mdn/browser-compat-data": {
-      "version": "6.0.9",
-      "resolved": "https://registry.npmjs.org/@mdn/browser-compat-data/-/browser-compat-data-6.0.9.tgz",
-      "integrity": "sha512-IA/ER+n8ugvJakp4WRdTXVSvtU+QJEQbfdgLVbLcL6AaFDOeuAXUR1AzS7YsgZ7AZsfUVfYLhXJX8ubGJQ+SFA==",
+      "version": "6.0.11",
+      "resolved": "https://registry.npmjs.org/@mdn/browser-compat-data/-/browser-compat-data-6.0.11.tgz",
+      "integrity": "sha512-vcLCW2dvKfHGV4t/lkocstKvu15hfaMaAEaGTzL4wZ6ZWmI2aHbrFcO/LkK34jkFPjKXm3GHLm5h35u5WD4d9w==",
       "license": "CC0-1.0"
     },
     "node_modules/@nodelib/fs.scandir": {
diff --git a/package.json b/package.json
index 4920ba0aaf8..336670b9896 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
   "devDependencies": {
     "@eslint/js": "^9.25.1",
     "@js-temporal/polyfill": "^0.5.1",
-    "@mdn/browser-compat-data": "^6.0.9",
+    "@mdn/browser-compat-data": "^6.0.11",
     "@types/caniuse-lite": "^1.0.4",
     "@types/diff": "^7.0.2",
     "@types/node": "^20.17.32",