diff --git a/features/content-visibility.yml b/features/content-visibility.yml
index 34da9be944f..8701ef786f2 100644
--- a/features/content-visibility.yml
+++ b/features/content-visibility.yml
@@ -3,12 +3,15 @@ description: The `content-visibility` CSS property delays rendering an element,
 spec: https://drafts.csswg.org/css-contain-2/#content-visibility
 group: css
 caniuse: css-content-visibility
-# TODO: https://github.com/web-platform-dx/web-features/issues/1971
-# Status changed: https://github.com/web-platform-dx/web-features/pull/2591
-# 2025-01-30 — low → false — Safari hides text behind `content-visibility: auto` from "Find…" in the page.
-# References:
-# - https://github.com/mdn/browser-compat-data/pull/25781
-# - https://bugs.webkit.org/show_bug.cgi?id=283846
+notes:
+  - category: baseline-regression
+    date: 2025-01-30
+    old_baseline_value: low
+    new_baseline_value: false
+    message: >
+      Upstream data reported that Safari prevented text in `content-visibility: auto` elements from being found with browser's "Find…" user interface.
+    citations:
+      - https://bugs.webkit.org/show_bug.cgi?id=283846
 compat_features:
   - api.ContentVisibilityAutoStateChangeEvent
   - api.ContentVisibilityAutoStateChangeEvent.ContentVisibilityAutoStateChangeEvent
diff --git a/features/createimagebitmap.yml b/features/createimagebitmap.yml
index bd56d7cc6c2..da08b41d264 100644
--- a/features/createimagebitmap.yml
+++ b/features/createimagebitmap.yml
@@ -2,6 +2,15 @@ name: createImageBitmap
 description: The `createImageBitmap()` global method creates an `ImageBitmap` object from a source such as an image, SVG, blob, or canvas. An `ImageBitmap` object represents pixel data that can be drawn to a canvas with lower latency than other types, such as `ImageData`.
 spec: https://html.spec.whatwg.org/multipage/imagebitmap-and-animations.html#imagebitmap
 caniuse: createimagebitmap
+notes:
+  - date: 2025-08-11
+    category: baseline-regression
+    old_baseline_value: high
+    new_baseline_value: low
+    message: >
+      This feature's status was recalculated to be more consistent with caniuse.
+    citations:
+      - https://github.com/web-platform-dx/web-features/pull/3173
 status:
   compute_from:
     - api.createImageBitmap
diff --git a/features/font-variant-position.yml b/features/font-variant-position.yml
index 7bfa1284d0e..f1355665bed 100644
--- a/features/font-variant-position.yml
+++ b/features/font-variant-position.yml
@@ -2,9 +2,13 @@ name: font-variant-position
 description: The `font-variant-position` CSS property sets whether to use alternate glyphs for subscript and superscript text.
 spec: https://drafts.csswg.org/css-fonts-4/#font-variant-position-prop
 group: font-features
-# TODO: https://github.com/web-platform-dx/web-features/issues/1971
-# Status changed: https://github.com/web-platform-dx/web-features/pull/1958
-# 2024-10-15 — low → false — Chrome, Edge, and Safari do not implement font synthesis for missing superscript or subscript glyphs.
-# References:
-# - https://issues.chromium.org/issues/352218916
-# - https://bugs.webkit.org/show_bug.cgi?id=151471
+notes:
+  - date: 2024-10-15
+    category: baseline-regression
+    old_baseline_value: low
+    new_baseline_value: false
+    message: >
+      Upstream data reported that Chrome, Edge, and Safari did not implement font synthesis for missing superscript or subscript glyphs.
+    citations:
+      - https://issues.chromium.org/issues/352218916
+      - https://bugs.webkit.org/show_bug.cgi?id=151471
diff --git a/features/link-rel-dns-prefetch.yml b/features/link-rel-dns-prefetch.yml
index 6363055406c..f2ebc18b8d2 100644
--- a/features/link-rel-dns-prefetch.yml
+++ b/features/link-rel-dns-prefetch.yml
@@ -2,11 +2,14 @@ name: '<link rel="dns-prefetch">'
 description: The `rel="dns-prefetch"` attribute for the `<link>` HTML element is a hint to the browser that the page or user is likely to request resources from another domain, so the browser should preemptively resolve DNS for the `href` value's domain.
 spec: https://html.spec.whatwg.org/multipage/links.html#link-type-dns-prefetch
 caniuse: link-rel-dns-prefetch
+notes:
+  - date: 2025-06-23
+    category: baseline-regression
+    old_baseline_value: low
+    new_baseline_value: false
+    message: >
+      Upstream data corrected an earlier report that Safari on iOS supported this feature when it did not.
+    citations:
+      - https://github.com/mdn/browser-compat-data/pull/27057
 compat_features:
   - html.elements.link.rel.dns-prefetch
-# TODO: https://github.com/web-platform-dx/web-features/issues/1971
-# Status changed: https://github.com/web-platform-dx/web-features/pull/3074/
-# 2025-06-23 — low → false — On iOS, it was erroneously reported that this feature was supported.
-# References:
-# - https://developer.apple.com/documentation/safari-release-notes/safari-26-release-notes#Networking
-# - https://github.com/mdn/browser-compat-data/pull/27057
diff --git a/features/popover.yml b/features/popover.yml
index 41e8afbb4a6..198c3b2f4e6 100644
--- a/features/popover.yml
+++ b/features/popover.yml
@@ -2,12 +2,16 @@ name: Popover
 description: The `popover` HTML attribute creates an overlay to display content on top of other page content. Popovers can be shown declaratively using HTML, or using the `showPopover()` method.
 spec: https://html.spec.whatwg.org/multipage/popover.html
 group: html
-# TODO: https://github.com/web-platform-dx/web-features/issues/1971
-# Status changed: https://github.com/web-platform-dx/web-features/pull/1797
-# 2024-09-18 — low → false — Safari on iOS has a bug that prevents dismissing popovers by touch.
-# References:
-# - https://github.com/mdn/browser-compat-data/issues/22927
-# - https://bugs.webkit.org/show_bug.cgi?id=267688
+notes:
+  - date: 2024-09-18
+    category: baseline-regression
+    old_baseline_value: low
+    new_baseline_value: false
+    message: >
+      Upstream data reported that Safari on iOS had a bug that prevented light dismiss (tapping outside the element to close it).
+    citations:
+      - https://bugs.webkit.org/show_bug.cgi?id=267688
+      - https://github.com/mdn/browser-compat-data/issues/22927
 status:
   compute_from:
     - api.HTMLElement.popover
diff --git a/features/streams.yml b/features/streams.yml
index a1a70e31c20..bd6be3b72ea 100644
--- a/features/streams.yml
+++ b/features/streams.yml
@@ -2,12 +2,6 @@ name: Streams
 description: The streams API creates, composes, and consumes continuously generated data.
 spec: https://streams.spec.whatwg.org/
 group: streams
-# TODO: https://github.com/web-platform-dx/web-features/issues/1971
-# Status changed: https://github.com/web-platform-dx/web-features/pull/2358, https://github.com/web-platform-dx/web-features/pull/2491
-# 2024-12-19 — low → false — Regressed status to match Caniuse, which considers support beginning at BYOB shipping.
-# 2025-01-30 — false → high — Split BYOB into a separate "readable-byte-streams" feature. Linked that one to Caniuse.
-# References:
-# - https://caniuse.com/streams
 status:
   compute_from:
     - api.ReadableStream