From 70dcc633f5c8d4f8b600d8f38eb8ac1f95018d94 Mon Sep 17 00:00:00 2001
From: SondraE <sondra@oddbird.net>
Date: Mon, 30 Sep 2024 17:02:23 -0600
Subject: [PATCH 1/3] add q length unit

---
 features/q-length-unit.yml      | 4 ++++
 features/q-length-unit.yml.dist | 6 ++++++
 2 files changed, 10 insertions(+)
 create mode 100644 features/q-length-unit.yml
 create mode 100644 features/q-length-unit.yml.dist

diff --git a/features/q-length-unit.yml b/features/q-length-unit.yml
new file mode 100644
index 00000000000..0a9f2afb655
--- /dev/null
+++ b/features/q-length-unit.yml
@@ -0,0 +1,4 @@
+name: Q length unit
+description: The CSS `Q` length unit is an absolute length anchored to the physical measurement of quarter-millimeters. 1q is equivalent to 1/40 of 1cm.
+spec: https://drafts.csswg.org/css-values/#absolute-lengths
+caniuse: css_types_length_q
diff --git a/features/q-length-unit.yml.dist b/features/q-length-unit.yml.dist
new file mode 100644
index 00000000000..11c1bd58172
--- /dev/null
+++ b/features/q-length-unit.yml.dist
@@ -0,0 +1,6 @@
+# Generated from: q-length-unit.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: false
+  support: {}

From e0518604a8204f13741443a64bb056812257efd3 Mon Sep 17 00:00:00 2001
From: SondraE <sondra@oddbird.net>
Date: Tue, 1 Oct 2024 15:42:37 -0600
Subject: [PATCH 2/3] add length units

---
 features/ch.yml                  |  8 +++++++
 features/ch.yml.dist             | 38 ++++++++++++++++++++++++++++++++
 features/em-length-unit.yml      |  8 +++++++
 features/em-length-unit.yml.dist | 38 ++++++++++++++++++++++++++++++++
 features/ex.yml                  |  8 +++++++
 features/ex.yml.dist             | 38 ++++++++++++++++++++++++++++++++
 features/q-length-unit.yml       | 10 ++++++---
 features/q-length-unit.yml.dist  | 36 ++++++++++++++++++++++++++++--
 features/rcap.yml                |  6 +++++
 features/rcap.yml.dist           | 14 ++++++++++++
 features/rch.yml                 |  8 +++++++
 features/rch.yml.dist            | 30 +++++++++++++++++++++++++
 features/rem.yml                 |  9 ++++++++
 features/rem.yml.dist            | 38 ++++++++++++++++++++++++++++++++
 features/rex.yml                 |  6 +++++
 features/rex.yml.dist            | 30 +++++++++++++++++++++++++
 features/ric.yml                 |  6 +++++
 features/ric.yml.dist            | 30 +++++++++++++++++++++++++
 features/rlh.yml                 |  8 +++++++
 features/rlh.yml.dist            | 36 ++++++++++++++++++++++++++++++
 20 files changed, 400 insertions(+), 5 deletions(-)
 create mode 100644 features/ch.yml
 create mode 100644 features/ch.yml.dist
 create mode 100644 features/em-length-unit.yml
 create mode 100644 features/em-length-unit.yml.dist
 create mode 100644 features/ex.yml
 create mode 100644 features/ex.yml.dist
 create mode 100644 features/rcap.yml
 create mode 100644 features/rcap.yml.dist
 create mode 100644 features/rch.yml
 create mode 100644 features/rch.yml.dist
 create mode 100644 features/rem.yml
 create mode 100644 features/rem.yml.dist
 create mode 100644 features/rex.yml
 create mode 100644 features/rex.yml.dist
 create mode 100644 features/ric.yml
 create mode 100644 features/ric.yml.dist
 create mode 100644 features/rlh.yml
 create mode 100644 features/rlh.yml.dist

diff --git a/features/ch.yml b/features/ch.yml
new file mode 100644
index 00000000000..9eab0074fca
--- /dev/null
+++ b/features/ch.yml
@@ -0,0 +1,8 @@
+name: ch unit
+description: The `ch` CSS length unit is a font-relative length based on the width of the zero (0) character.
+spec: https://drafts.csswg.org/css-values-4/#font-relative-lengths
+status:
+  compute_from: css.types.length.ch
+compat_features:
+  - css.types.length.ch
+  - api.CSS.ch_static
diff --git a/features/ch.yml.dist b/features/ch.yml.dist
new file mode 100644
index 00000000000..9db078933d2
--- /dev/null
+++ b/features/ch.yml.dist
@@ -0,0 +1,38 @@
+# Generated from: ch.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: high
+  baseline_low_date: 2015-07-29
+  baseline_high_date: 2018-01-29
+  support:
+    chrome: "27"
+    chrome_android: "27"
+    edge: "12"
+    firefox: "1"
+    firefox_android: "4"
+    safari: "7"
+    safari_ios: "7"
+compat_features:
+  # ⬇️ Same status as overall feature ⬇️
+  # baseline: high
+  # baseline_low_date: 2015-07-29
+  # baseline_high_date: 2018-01-29
+  # support:
+  #   chrome: "27"
+  #   chrome_android: "27"
+  #   edge: "12"
+  #   firefox: "1"
+  #   firefox_android: "4"
+  #   safari: "7"
+  #   safari_ios: "7"
+  - css.types.length.ch
+
+  # baseline: false
+  # support:
+  #   chrome: "66"
+  #   chrome_android: "66"
+  #   edge: "79"
+  #   safari: "16.4"
+  #   safari_ios: "16.4"
+  - api.CSS.ch_static
diff --git a/features/em-length-unit.yml b/features/em-length-unit.yml
new file mode 100644
index 00000000000..cf2378a0e1e
--- /dev/null
+++ b/features/em-length-unit.yml
@@ -0,0 +1,8 @@
+name: em length unit
+description: The `em` CSS length unit is a font-relative length equal to the specified font size. In an element with a 2in font, 1em equals 2in.
+spec: https://drafts.csswg.org/css-values-4/#font-relative-lengths
+status:
+  compute_from: css.types.length.em
+compat_features:
+  - css.types.length.em
+  - api.CSS.em_static
diff --git a/features/em-length-unit.yml.dist b/features/em-length-unit.yml.dist
new file mode 100644
index 00000000000..18fabb0da71
--- /dev/null
+++ b/features/em-length-unit.yml.dist
@@ -0,0 +1,38 @@
+# Generated from: em-length-unit.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: high
+  baseline_low_date: 2015-07-29
+  baseline_high_date: 2018-01-29
+  support:
+    chrome: "1"
+    chrome_android: "18"
+    edge: "12"
+    firefox: "1"
+    firefox_android: "4"
+    safari: "1"
+    safari_ios: "1"
+compat_features:
+  # ⬇️ Same status as overall feature ⬇️
+  # baseline: high
+  # baseline_low_date: 2015-07-29
+  # baseline_high_date: 2018-01-29
+  # support:
+  #   chrome: "1"
+  #   chrome_android: "18"
+  #   edge: "12"
+  #   firefox: "1"
+  #   firefox_android: "4"
+  #   safari: "1"
+  #   safari_ios: "1"
+  - css.types.length.em
+
+  # baseline: false
+  # support:
+  #   chrome: "66"
+  #   chrome_android: "66"
+  #   edge: "79"
+  #   safari: "16.4"
+  #   safari_ios: "16.4"
+  - api.CSS.em_static
diff --git a/features/ex.yml b/features/ex.yml
new file mode 100644
index 00000000000..99f8c61e280
--- /dev/null
+++ b/features/ex.yml
@@ -0,0 +1,8 @@
+name: ex unit
+description: The `ex` CSS length unit is a font-relative length equal to the used x-height of the first available font. X-height is often equal to the height of the lowercase "x".
+spec: https://drafts.csswg.org/css-values-4/#font-relative-lengths
+status:
+  compute_from: css.types.length.ex
+compat_features:
+  - css.types.length.ex
+  - api.CSS.ex_static
diff --git a/features/ex.yml.dist b/features/ex.yml.dist
new file mode 100644
index 00000000000..993b4e755e8
--- /dev/null
+++ b/features/ex.yml.dist
@@ -0,0 +1,38 @@
+# Generated from: ex.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: high
+  baseline_low_date: 2015-07-29
+  baseline_high_date: 2018-01-29
+  support:
+    chrome: "1"
+    chrome_android: "18"
+    edge: "12"
+    firefox: "1"
+    firefox_android: "4"
+    safari: "1"
+    safari_ios: "1"
+compat_features:
+  # ⬇️ Same status as overall feature ⬇️
+  # baseline: high
+  # baseline_low_date: 2015-07-29
+  # baseline_high_date: 2018-01-29
+  # support:
+  #   chrome: "1"
+  #   chrome_android: "18"
+  #   edge: "12"
+  #   firefox: "1"
+  #   firefox_android: "4"
+  #   safari: "1"
+  #   safari_ios: "1"
+  - css.types.length.ex
+
+  # baseline: false
+  # support:
+  #   chrome: "66"
+  #   chrome_android: "66"
+  #   edge: "79"
+  #   safari: "16.4"
+  #   safari_ios: "16.4"
+  - api.CSS.ex_static
diff --git a/features/q-length-unit.yml b/features/q-length-unit.yml
index 0a9f2afb655..dfc2c67da3f 100644
--- a/features/q-length-unit.yml
+++ b/features/q-length-unit.yml
@@ -1,4 +1,8 @@
 name: Q length unit
-description: The CSS `Q` length unit is an absolute length anchored to the physical measurement of quarter-millimeters. 1q is equivalent to 1/40 of 1cm.
-spec: https://drafts.csswg.org/css-values/#absolute-lengths
-caniuse: css_types_length_q
+description: The `Q` CSS length unit is an absolute length anchored to the physical measurement of quarter-millimeters. 1Q is equivalent to 1/40 of 1cm.
+spec: https://drafts.csswg.org/css-values-4/#absolute-lengths
+status:
+  compute_from: css.types.length.Q
+compat_features:
+  - css.types.length.Q
+  - api.CSS.Q_static
diff --git a/features/q-length-unit.yml.dist b/features/q-length-unit.yml.dist
index 11c1bd58172..f94fc839fb8 100644
--- a/features/q-length-unit.yml.dist
+++ b/features/q-length-unit.yml.dist
@@ -2,5 +2,37 @@
 # Do not edit this file by hand. Edit the source file instead!
 
 status:
-  baseline: false
-  support: {}
+  baseline: high
+  baseline_low_date: 2020-03-24
+  baseline_high_date: 2022-09-24
+  support:
+    chrome: "63"
+    chrome_android: "63"
+    edge: "79"
+    firefox: "49"
+    firefox_android: "49"
+    safari: "13.1"
+    safari_ios: "13.4"
+compat_features:
+  # ⬇️ Same status as overall feature ⬇️
+  # baseline: high
+  # baseline_low_date: 2020-03-24
+  # baseline_high_date: 2022-09-24
+  # support:
+  #   chrome: "63"
+  #   chrome_android: "63"
+  #   edge: "79"
+  #   firefox: "49"
+  #   firefox_android: "49"
+  #   safari: "13.1"
+  #   safari_ios: "13.4"
+  - css.types.length.Q
+
+  # baseline: false
+  # support:
+  #   chrome: "66"
+  #   chrome_android: "66"
+  #   edge: "79"
+  #   safari: "16.4"
+  #   safari_ios: "16.4"
+  - api.CSS.Q_static
diff --git a/features/rcap.yml b/features/rcap.yml
new file mode 100644
index 00000000000..10c2ad7ce4b
--- /dev/null
+++ b/features/rcap.yml
@@ -0,0 +1,6 @@
+name: rcap unit
+description: The `rcap` CSS length unit is a font-relative length equal to the value of the cap unit on the root element. Cap-height is approximately equal to the height of a capital Latin letter.
+spec: https://drafts.csswg.org/css-values-4/#font-relative-lengths
+compat_features:
+  - css.types.length.rcap
+  - api.CSS.rcap_static
diff --git a/features/rcap.yml.dist b/features/rcap.yml.dist
new file mode 100644
index 00000000000..0ef9c6d15fd
--- /dev/null
+++ b/features/rcap.yml.dist
@@ -0,0 +1,14 @@
+# Generated from: rcap.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: false
+  support:
+    chrome: "118"
+    chrome_android: "118"
+    edge: "118"
+    safari: "17.2"
+    safari_ios: "17.2"
+compat_features:
+  - api.CSS.rcap_static
+  - css.types.length.rcap
diff --git a/features/rch.yml b/features/rch.yml
new file mode 100644
index 00000000000..c86fd28b747
--- /dev/null
+++ b/features/rch.yml
@@ -0,0 +1,8 @@
+name: rch unit
+description: The `rch` CSS length unit is a font-relative length equal to the value of the ch unit on the root element. Ch length based on the width of the zero (0) character.
+spec: https://drafts.csswg.org/css-values-4/#font-relative-lengths
+status:
+  compute_from: css.types.length.rch
+compat_features:
+  - css.types.length.rch
+  - api.CSS.rch_static
diff --git a/features/rch.yml.dist b/features/rch.yml.dist
new file mode 100644
index 00000000000..de1966b231d
--- /dev/null
+++ b/features/rch.yml.dist
@@ -0,0 +1,30 @@
+# Generated from: rch.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: false
+  support:
+    chrome: "111"
+    chrome_android: "111"
+    edge: "111"
+    safari: "17.2"
+    safari_ios: "17.2"
+compat_features:
+  # ⬇️ Same status as overall feature ⬇️
+  # baseline: false
+  # support:
+  #   chrome: "111"
+  #   chrome_android: "111"
+  #   edge: "111"
+  #   safari: "17.2"
+  #   safari_ios: "17.2"
+  - css.types.length.rch
+
+  # baseline: false
+  # support:
+  #   chrome: "118"
+  #   chrome_android: "118"
+  #   edge: "118"
+  #   safari: "17.2"
+  #   safari_ios: "17.2"
+  - api.CSS.rch_static
diff --git a/features/rem.yml b/features/rem.yml
new file mode 100644
index 00000000000..b04898929b4
--- /dev/null
+++ b/features/rem.yml
@@ -0,0 +1,9 @@
+name: rem
+description: The `rem` CSS length unit is a font-relative length that is equal to the font size of the root html element which for most browsers is 16px.
+spec: https://drafts.csswg.org/css-values-4/#font-relative-lengths
+caniuse: rem
+status:
+  compute_from: css.types.length.rem
+compat_features:
+  - css.types.length.rem
+  - api.CSS.rem_static
diff --git a/features/rem.yml.dist b/features/rem.yml.dist
new file mode 100644
index 00000000000..5aefe080b14
--- /dev/null
+++ b/features/rem.yml.dist
@@ -0,0 +1,38 @@
+# Generated from: rem.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: high
+  baseline_low_date: 2015-07-29
+  baseline_high_date: 2018-01-29
+  support:
+    chrome: "4"
+    chrome_android: "18"
+    edge: "12"
+    firefox: "3.6"
+    firefox_android: "4"
+    safari: "5"
+    safari_ios: "4"
+compat_features:
+  # ⬇️ Same status as overall feature ⬇️
+  # baseline: high
+  # baseline_low_date: 2015-07-29
+  # baseline_high_date: 2018-01-29
+  # support:
+  #   chrome: "4"
+  #   chrome_android: "18"
+  #   edge: "12"
+  #   firefox: "3.6"
+  #   firefox_android: "4"
+  #   safari: "5"
+  #   safari_ios: "4"
+  - css.types.length.rem
+
+  # baseline: false
+  # support:
+  #   chrome: "66"
+  #   chrome_android: "66"
+  #   edge: "79"
+  #   safari: "16.4"
+  #   safari_ios: "16.4"
+  - api.CSS.rem_static
diff --git a/features/rex.yml b/features/rex.yml
new file mode 100644
index 00000000000..7a74891339d
--- /dev/null
+++ b/features/rex.yml
@@ -0,0 +1,6 @@
+name: rex unit
+description: The `rex` CSS length unit is a font-relative length that is equal to the x-height of the root element.
+spec: https://drafts.csswg.org/css-values-4/#font-relative-lengths
+compat_features:
+  - css.types.length.rex
+  - api.CSS.rex_static
diff --git a/features/rex.yml.dist b/features/rex.yml.dist
new file mode 100644
index 00000000000..7bce9c04b25
--- /dev/null
+++ b/features/rex.yml.dist
@@ -0,0 +1,30 @@
+# Generated from: rex.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: false
+  support:
+    chrome: "118"
+    chrome_android: "118"
+    edge: "118"
+    safari: "17.2"
+    safari_ios: "17.2"
+compat_features:
+  # baseline: false
+  # support:
+  #   chrome: "111"
+  #   chrome_android: "111"
+  #   edge: "111"
+  #   safari: "17.2"
+  #   safari_ios: "17.2"
+  - css.types.length.rex
+
+  # ⬇️ Same status as overall feature ⬇️
+  # baseline: false
+  # support:
+  #   chrome: "118"
+  #   chrome_android: "118"
+  #   edge: "118"
+  #   safari: "17.2"
+  #   safari_ios: "17.2"
+  - api.CSS.rex_static
diff --git a/features/ric.yml b/features/ric.yml
new file mode 100644
index 00000000000..540b67ebccf
--- /dev/null
+++ b/features/ric.yml
@@ -0,0 +1,6 @@
+name: ric unit
+description: The `ric` CSS length unit, or root international character, is a font-relative length equal to the width of CJK character relative to the root element.
+spec: https://drafts.csswg.org/css-values-4/#font-relative-lengths
+compat_features:
+  - css.types.length.ric
+  - api.CSS.ric_static
diff --git a/features/ric.yml.dist b/features/ric.yml.dist
new file mode 100644
index 00000000000..aea198ce496
--- /dev/null
+++ b/features/ric.yml.dist
@@ -0,0 +1,30 @@
+# Generated from: ric.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: false
+  support:
+    chrome: "118"
+    chrome_android: "118"
+    edge: "118"
+    safari: "17.2"
+    safari_ios: "17.2"
+compat_features:
+  # baseline: false
+  # support:
+  #   chrome: "111"
+  #   chrome_android: "111"
+  #   edge: "111"
+  #   safari: "17.2"
+  #   safari_ios: "17.2"
+  - css.types.length.ric
+
+  # ⬇️ Same status as overall feature ⬇️
+  # baseline: false
+  # support:
+  #   chrome: "118"
+  #   chrome_android: "118"
+  #   edge: "118"
+  #   safari: "17.2"
+  #   safari_ios: "17.2"
+  - api.CSS.ric_static
diff --git a/features/rlh.yml b/features/rlh.yml
new file mode 100644
index 00000000000..4de26553c60
--- /dev/null
+++ b/features/rlh.yml
@@ -0,0 +1,8 @@
+name: rlh unit
+description: The `rlh` CSS length unit is a font-relative length relative to the line height of root element.
+spec: https://drafts.csswg.org/css-values-4/#font-relative-lengths
+status:
+  compute_from: css.types.length.rlh
+compat_features:
+  - css.types.length.rlh
+  - api.CSS.rlh_static
diff --git a/features/rlh.yml.dist b/features/rlh.yml.dist
new file mode 100644
index 00000000000..632828c1969
--- /dev/null
+++ b/features/rlh.yml.dist
@@ -0,0 +1,36 @@
+# Generated from: rlh.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: low
+  baseline_low_date: 2023-11-21
+  support:
+    chrome: "111"
+    chrome_android: "111"
+    edge: "111"
+    firefox: "120"
+    firefox_android: "120"
+    safari: "16.4"
+    safari_ios: "16.4"
+compat_features:
+  # ⬇️ Same status as overall feature ⬇️
+  # baseline: low
+  # baseline_low_date: 2023-11-21
+  # support:
+  #   chrome: "111"
+  #   chrome_android: "111"
+  #   edge: "111"
+  #   firefox: "120"
+  #   firefox_android: "120"
+  #   safari: "16.4"
+  #   safari_ios: "16.4"
+  - css.types.length.rlh
+
+  # baseline: false
+  # support:
+  #   chrome: "118"
+  #   chrome_android: "118"
+  #   edge: "118"
+  #   safari: "16.4"
+  #   safari_ios: "16.4"
+  - api.CSS.rlh_static

From 0214b88e573d1afca4db62d6d7a7d799baf03f8a Mon Sep 17 00:00:00 2001
From: SondraE <sondra@oddbird.net>
Date: Wed, 2 Oct 2024 14:36:24 -0600
Subject: [PATCH 3/3] updates to length-units

---
 features/ch.yml                              |  4 +--
 features/ch.yml.dist                         | 21 -----------
 features/em-length-unit.yml.dist             | 38 --------------------
 features/{em-length-unit.yml => em-unit.yml} |  8 ++---
 features/em-unit.yml.dist                    | 17 +++++++++
 features/ex.yml                              |  6 ++--
 features/ex.yml.dist                         | 21 -----------
 features/q-length-unit.yml                   |  8 -----
 features/q-length-unit.yml.dist              | 38 --------------------
 features/q-unit.yml                          |  6 ++++
 features/q-unit.yml.dist                     | 17 +++++++++
 features/rcap.yml                            |  4 +--
 features/rcap.yml.dist                       |  1 -
 features/rch.yml                             |  6 ++--
 features/rch.yml.dist                        | 17 ---------
 features/rem.yml                             |  6 ++--
 features/rem.yml.dist                        | 21 -----------
 features/rex.yml                             |  2 +-
 features/rex.yml.dist                        | 23 ++----------
 features/ric.yml                             |  2 +-
 features/ric.yml.dist                        | 23 ++----------
 features/rlh.yml                             |  4 +--
 features/rlh.yml.dist                        | 20 -----------
 23 files changed, 61 insertions(+), 252 deletions(-)
 delete mode 100644 features/em-length-unit.yml.dist
 rename features/{em-length-unit.yml => em-unit.yml} (50%)
 create mode 100644 features/em-unit.yml.dist
 delete mode 100644 features/q-length-unit.yml
 delete mode 100644 features/q-length-unit.yml.dist
 create mode 100644 features/q-unit.yml
 create mode 100644 features/q-unit.yml.dist

diff --git a/features/ch.yml b/features/ch.yml
index 9eab0074fca..ea127306a94 100644
--- a/features/ch.yml
+++ b/features/ch.yml
@@ -1,8 +1,6 @@
 name: ch unit
 description: The `ch` CSS length unit is a font-relative length based on the width of the zero (0) character.
 spec: https://drafts.csswg.org/css-values-4/#font-relative-lengths
-status:
-  compute_from: css.types.length.ch
+group: units
 compat_features:
   - css.types.length.ch
-  - api.CSS.ch_static
diff --git a/features/ch.yml.dist b/features/ch.yml.dist
index 9db078933d2..bf67bf1e362 100644
--- a/features/ch.yml.dist
+++ b/features/ch.yml.dist
@@ -14,25 +14,4 @@ status:
     safari: "7"
     safari_ios: "7"
 compat_features:
-  # ⬇️ Same status as overall feature ⬇️
-  # baseline: high
-  # baseline_low_date: 2015-07-29
-  # baseline_high_date: 2018-01-29
-  # support:
-  #   chrome: "27"
-  #   chrome_android: "27"
-  #   edge: "12"
-  #   firefox: "1"
-  #   firefox_android: "4"
-  #   safari: "7"
-  #   safari_ios: "7"
   - css.types.length.ch
-
-  # baseline: false
-  # support:
-  #   chrome: "66"
-  #   chrome_android: "66"
-  #   edge: "79"
-  #   safari: "16.4"
-  #   safari_ios: "16.4"
-  - api.CSS.ch_static
diff --git a/features/em-length-unit.yml.dist b/features/em-length-unit.yml.dist
deleted file mode 100644
index 18fabb0da71..00000000000
--- a/features/em-length-unit.yml.dist
+++ /dev/null
@@ -1,38 +0,0 @@
-# Generated from: em-length-unit.yml
-# Do not edit this file by hand. Edit the source file instead!
-
-status:
-  baseline: high
-  baseline_low_date: 2015-07-29
-  baseline_high_date: 2018-01-29
-  support:
-    chrome: "1"
-    chrome_android: "18"
-    edge: "12"
-    firefox: "1"
-    firefox_android: "4"
-    safari: "1"
-    safari_ios: "1"
-compat_features:
-  # ⬇️ Same status as overall feature ⬇️
-  # baseline: high
-  # baseline_low_date: 2015-07-29
-  # baseline_high_date: 2018-01-29
-  # support:
-  #   chrome: "1"
-  #   chrome_android: "18"
-  #   edge: "12"
-  #   firefox: "1"
-  #   firefox_android: "4"
-  #   safari: "1"
-  #   safari_ios: "1"
-  - css.types.length.em
-
-  # baseline: false
-  # support:
-  #   chrome: "66"
-  #   chrome_android: "66"
-  #   edge: "79"
-  #   safari: "16.4"
-  #   safari_ios: "16.4"
-  - api.CSS.em_static
diff --git a/features/em-length-unit.yml b/features/em-unit.yml
similarity index 50%
rename from features/em-length-unit.yml
rename to features/em-unit.yml
index cf2378a0e1e..1451862f8a1 100644
--- a/features/em-length-unit.yml
+++ b/features/em-unit.yml
@@ -1,8 +1,6 @@
-name: em length unit
-description: The `em` CSS length unit is a font-relative length equal to the specified font size. In an element with a 2in font, 1em equals 2in.
+name: em unit
+description: The `em` CSS length unit is a font-relative length equal to the specified font size. In an element with a 2 inch font, `1em` equals 2 inches.
 spec: https://drafts.csswg.org/css-values-4/#font-relative-lengths
-status:
-  compute_from: css.types.length.em
+group: units
 compat_features:
   - css.types.length.em
-  - api.CSS.em_static
diff --git a/features/em-unit.yml.dist b/features/em-unit.yml.dist
new file mode 100644
index 00000000000..03636576eaa
--- /dev/null
+++ b/features/em-unit.yml.dist
@@ -0,0 +1,17 @@
+# Generated from: em-unit.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: high
+  baseline_low_date: 2015-07-29
+  baseline_high_date: 2018-01-29
+  support:
+    chrome: "1"
+    chrome_android: "18"
+    edge: "12"
+    firefox: "1"
+    firefox_android: "4"
+    safari: "1"
+    safari_ios: "1"
+compat_features:
+  - css.types.length.em
diff --git a/features/ex.yml b/features/ex.yml
index 99f8c61e280..ebcea9ce089 100644
--- a/features/ex.yml
+++ b/features/ex.yml
@@ -1,8 +1,6 @@
 name: ex unit
-description: The `ex` CSS length unit is a font-relative length equal to the used x-height of the first available font. X-height is often equal to the height of the lowercase "x".
+description: The `ex` CSS length unit is a font-relative length equal to the used x-height of the first available font. X-height is often equal to the height of the lowercase x.
 spec: https://drafts.csswg.org/css-values-4/#font-relative-lengths
-status:
-  compute_from: css.types.length.ex
+group: units
 compat_features:
   - css.types.length.ex
-  - api.CSS.ex_static
diff --git a/features/ex.yml.dist b/features/ex.yml.dist
index 993b4e755e8..8aaddf19ed1 100644
--- a/features/ex.yml.dist
+++ b/features/ex.yml.dist
@@ -14,25 +14,4 @@ status:
     safari: "1"
     safari_ios: "1"
 compat_features:
-  # ⬇️ Same status as overall feature ⬇️
-  # baseline: high
-  # baseline_low_date: 2015-07-29
-  # baseline_high_date: 2018-01-29
-  # support:
-  #   chrome: "1"
-  #   chrome_android: "18"
-  #   edge: "12"
-  #   firefox: "1"
-  #   firefox_android: "4"
-  #   safari: "1"
-  #   safari_ios: "1"
   - css.types.length.ex
-
-  # baseline: false
-  # support:
-  #   chrome: "66"
-  #   chrome_android: "66"
-  #   edge: "79"
-  #   safari: "16.4"
-  #   safari_ios: "16.4"
-  - api.CSS.ex_static
diff --git a/features/q-length-unit.yml b/features/q-length-unit.yml
deleted file mode 100644
index dfc2c67da3f..00000000000
--- a/features/q-length-unit.yml
+++ /dev/null
@@ -1,8 +0,0 @@
-name: Q length unit
-description: The `Q` CSS length unit is an absolute length anchored to the physical measurement of quarter-millimeters. 1Q is equivalent to 1/40 of 1cm.
-spec: https://drafts.csswg.org/css-values-4/#absolute-lengths
-status:
-  compute_from: css.types.length.Q
-compat_features:
-  - css.types.length.Q
-  - api.CSS.Q_static
diff --git a/features/q-length-unit.yml.dist b/features/q-length-unit.yml.dist
deleted file mode 100644
index f94fc839fb8..00000000000
--- a/features/q-length-unit.yml.dist
+++ /dev/null
@@ -1,38 +0,0 @@
-# Generated from: q-length-unit.yml
-# Do not edit this file by hand. Edit the source file instead!
-
-status:
-  baseline: high
-  baseline_low_date: 2020-03-24
-  baseline_high_date: 2022-09-24
-  support:
-    chrome: "63"
-    chrome_android: "63"
-    edge: "79"
-    firefox: "49"
-    firefox_android: "49"
-    safari: "13.1"
-    safari_ios: "13.4"
-compat_features:
-  # ⬇️ Same status as overall feature ⬇️
-  # baseline: high
-  # baseline_low_date: 2020-03-24
-  # baseline_high_date: 2022-09-24
-  # support:
-  #   chrome: "63"
-  #   chrome_android: "63"
-  #   edge: "79"
-  #   firefox: "49"
-  #   firefox_android: "49"
-  #   safari: "13.1"
-  #   safari_ios: "13.4"
-  - css.types.length.Q
-
-  # baseline: false
-  # support:
-  #   chrome: "66"
-  #   chrome_android: "66"
-  #   edge: "79"
-  #   safari: "16.4"
-  #   safari_ios: "16.4"
-  - api.CSS.Q_static
diff --git a/features/q-unit.yml b/features/q-unit.yml
new file mode 100644
index 00000000000..0ede2985288
--- /dev/null
+++ b/features/q-unit.yml
@@ -0,0 +1,6 @@
+name: Q unit
+description: The `Q` CSS length unit is an absolute length anchored to the physical measurement of quarter-millimeters. `1Q` is equivalent to 1/40 of 1 centimeter.
+spec: https://drafts.csswg.org/css-values-4/#absolute-lengths
+group: units
+compat_features:
+  - css.types.length.Q
diff --git a/features/q-unit.yml.dist b/features/q-unit.yml.dist
new file mode 100644
index 00000000000..7a5ac846220
--- /dev/null
+++ b/features/q-unit.yml.dist
@@ -0,0 +1,17 @@
+# Generated from: q-unit.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: high
+  baseline_low_date: 2020-03-24
+  baseline_high_date: 2022-09-24
+  support:
+    chrome: "63"
+    chrome_android: "63"
+    edge: "79"
+    firefox: "49"
+    firefox_android: "49"
+    safari: "13.1"
+    safari_ios: "13.4"
+compat_features:
+  - css.types.length.Q
diff --git a/features/rcap.yml b/features/rcap.yml
index 10c2ad7ce4b..110bf559fd4 100644
--- a/features/rcap.yml
+++ b/features/rcap.yml
@@ -1,6 +1,6 @@
 name: rcap unit
-description: The `rcap` CSS length unit is a font-relative length equal to the value of the cap unit on the root element. Cap-height is approximately equal to the height of a capital Latin letter.
+description: The `rcap` CSS length unit is a font-relative length equal to the value of the `cap` unit on the root element. Cap-height is approximately equal to the height of a capital Latin letter.
 spec: https://drafts.csswg.org/css-values-4/#font-relative-lengths
+group: units
 compat_features:
   - css.types.length.rcap
-  - api.CSS.rcap_static
diff --git a/features/rcap.yml.dist b/features/rcap.yml.dist
index 0ef9c6d15fd..21769eb9b52 100644
--- a/features/rcap.yml.dist
+++ b/features/rcap.yml.dist
@@ -10,5 +10,4 @@ status:
     safari: "17.2"
     safari_ios: "17.2"
 compat_features:
-  - api.CSS.rcap_static
   - css.types.length.rcap
diff --git a/features/rch.yml b/features/rch.yml
index c86fd28b747..b7f4432fbe5 100644
--- a/features/rch.yml
+++ b/features/rch.yml
@@ -1,8 +1,6 @@
 name: rch unit
-description: The `rch` CSS length unit is a font-relative length equal to the value of the ch unit on the root element. Ch length based on the width of the zero (0) character.
+description: The `rch` CSS length unit is a font-relative length equal to the value of the `ch` unit on the root element. `ch` length is based on the width of the zero (0) character.
 spec: https://drafts.csswg.org/css-values-4/#font-relative-lengths
-status:
-  compute_from: css.types.length.rch
+group: units
 compat_features:
   - css.types.length.rch
-  - api.CSS.rch_static
diff --git a/features/rch.yml.dist b/features/rch.yml.dist
index de1966b231d..f8a0ee27847 100644
--- a/features/rch.yml.dist
+++ b/features/rch.yml.dist
@@ -10,21 +10,4 @@ status:
     safari: "17.2"
     safari_ios: "17.2"
 compat_features:
-  # ⬇️ Same status as overall feature ⬇️
-  # baseline: false
-  # support:
-  #   chrome: "111"
-  #   chrome_android: "111"
-  #   edge: "111"
-  #   safari: "17.2"
-  #   safari_ios: "17.2"
   - css.types.length.rch
-
-  # baseline: false
-  # support:
-  #   chrome: "118"
-  #   chrome_android: "118"
-  #   edge: "118"
-  #   safari: "17.2"
-  #   safari_ios: "17.2"
-  - api.CSS.rch_static
diff --git a/features/rem.yml b/features/rem.yml
index b04898929b4..a44519381e8 100644
--- a/features/rem.yml
+++ b/features/rem.yml
@@ -1,9 +1,7 @@
 name: rem
-description: The `rem` CSS length unit is a font-relative length that is equal to the font size of the root html element which for most browsers is 16px.
+description: The `rem` CSS length unit is a font-relative length that is equal to the font size of the root HTML element which for most browsers is `16px`.
 spec: https://drafts.csswg.org/css-values-4/#font-relative-lengths
 caniuse: rem
-status:
-  compute_from: css.types.length.rem
+group: units
 compat_features:
   - css.types.length.rem
-  - api.CSS.rem_static
diff --git a/features/rem.yml.dist b/features/rem.yml.dist
index 5aefe080b14..1c847be7256 100644
--- a/features/rem.yml.dist
+++ b/features/rem.yml.dist
@@ -14,25 +14,4 @@ status:
     safari: "5"
     safari_ios: "4"
 compat_features:
-  # ⬇️ Same status as overall feature ⬇️
-  # baseline: high
-  # baseline_low_date: 2015-07-29
-  # baseline_high_date: 2018-01-29
-  # support:
-  #   chrome: "4"
-  #   chrome_android: "18"
-  #   edge: "12"
-  #   firefox: "3.6"
-  #   firefox_android: "4"
-  #   safari: "5"
-  #   safari_ios: "4"
   - css.types.length.rem
-
-  # baseline: false
-  # support:
-  #   chrome: "66"
-  #   chrome_android: "66"
-  #   edge: "79"
-  #   safari: "16.4"
-  #   safari_ios: "16.4"
-  - api.CSS.rem_static
diff --git a/features/rex.yml b/features/rex.yml
index 7a74891339d..864a1cc3b4e 100644
--- a/features/rex.yml
+++ b/features/rex.yml
@@ -1,6 +1,6 @@
 name: rex unit
 description: The `rex` CSS length unit is a font-relative length that is equal to the x-height of the root element.
 spec: https://drafts.csswg.org/css-values-4/#font-relative-lengths
+group: units
 compat_features:
   - css.types.length.rex
-  - api.CSS.rex_static
diff --git a/features/rex.yml.dist b/features/rex.yml.dist
index 7bce9c04b25..6b1c61f421c 100644
--- a/features/rex.yml.dist
+++ b/features/rex.yml.dist
@@ -4,27 +4,10 @@
 status:
   baseline: false
   support:
-    chrome: "118"
-    chrome_android: "118"
-    edge: "118"
+    chrome: "111"
+    chrome_android: "111"
+    edge: "111"
     safari: "17.2"
     safari_ios: "17.2"
 compat_features:
-  # baseline: false
-  # support:
-  #   chrome: "111"
-  #   chrome_android: "111"
-  #   edge: "111"
-  #   safari: "17.2"
-  #   safari_ios: "17.2"
   - css.types.length.rex
-
-  # ⬇️ Same status as overall feature ⬇️
-  # baseline: false
-  # support:
-  #   chrome: "118"
-  #   chrome_android: "118"
-  #   edge: "118"
-  #   safari: "17.2"
-  #   safari_ios: "17.2"
-  - api.CSS.rex_static
diff --git a/features/ric.yml b/features/ric.yml
index 540b67ebccf..2ad88959b12 100644
--- a/features/ric.yml
+++ b/features/ric.yml
@@ -1,6 +1,6 @@
 name: ric unit
 description: The `ric` CSS length unit, or root international character, is a font-relative length equal to the width of CJK character relative to the root element.
 spec: https://drafts.csswg.org/css-values-4/#font-relative-lengths
+group: units
 compat_features:
   - css.types.length.ric
-  - api.CSS.ric_static
diff --git a/features/ric.yml.dist b/features/ric.yml.dist
index aea198ce496..a696528ce1d 100644
--- a/features/ric.yml.dist
+++ b/features/ric.yml.dist
@@ -4,27 +4,10 @@
 status:
   baseline: false
   support:
-    chrome: "118"
-    chrome_android: "118"
-    edge: "118"
+    chrome: "111"
+    chrome_android: "111"
+    edge: "111"
     safari: "17.2"
     safari_ios: "17.2"
 compat_features:
-  # baseline: false
-  # support:
-  #   chrome: "111"
-  #   chrome_android: "111"
-  #   edge: "111"
-  #   safari: "17.2"
-  #   safari_ios: "17.2"
   - css.types.length.ric
-
-  # ⬇️ Same status as overall feature ⬇️
-  # baseline: false
-  # support:
-  #   chrome: "118"
-  #   chrome_android: "118"
-  #   edge: "118"
-  #   safari: "17.2"
-  #   safari_ios: "17.2"
-  - api.CSS.ric_static
diff --git a/features/rlh.yml b/features/rlh.yml
index 4de26553c60..302c01e0478 100644
--- a/features/rlh.yml
+++ b/features/rlh.yml
@@ -1,8 +1,6 @@
 name: rlh unit
 description: The `rlh` CSS length unit is a font-relative length relative to the line height of root element.
 spec: https://drafts.csswg.org/css-values-4/#font-relative-lengths
-status:
-  compute_from: css.types.length.rlh
+group: units
 compat_features:
   - css.types.length.rlh
-  - api.CSS.rlh_static
diff --git a/features/rlh.yml.dist b/features/rlh.yml.dist
index 632828c1969..33a2dc631c0 100644
--- a/features/rlh.yml.dist
+++ b/features/rlh.yml.dist
@@ -13,24 +13,4 @@ status:
     safari: "16.4"
     safari_ios: "16.4"
 compat_features:
-  # ⬇️ Same status as overall feature ⬇️
-  # baseline: low
-  # baseline_low_date: 2023-11-21
-  # support:
-  #   chrome: "111"
-  #   chrome_android: "111"
-  #   edge: "111"
-  #   firefox: "120"
-  #   firefox_android: "120"
-  #   safari: "16.4"
-  #   safari_ios: "16.4"
   - css.types.length.rlh
-
-  # baseline: false
-  # support:
-  #   chrome: "118"
-  #   chrome_android: "118"
-  #   edge: "118"
-  #   safari: "16.4"
-  #   safari_ios: "16.4"
-  - api.CSS.rlh_static