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diff --git a/vendor/icu_list/src/provider/mod.rs b/vendor/icu_list/src/provider/mod.rs
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+++ b/vendor/icu_list/src/provider/mod.rs
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+// This file is part of ICU4X. For terms of use, please see the file
+// called LICENSE at the top level of the ICU4X source tree
+// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).
+
+// Provider structs must be stable
+#![allow(clippy::exhaustive_structs, clippy::exhaustive_enums)]
+
+//! 🚧 \[Unstable\] Data provider struct definitions for this ICU4X component.
+//!
+//! <div class="stab unstable">
+//! 🚧 This code is considered unstable; it may change at any time, in breaking or non-breaking ways,
+//! including in SemVer minor releases. While the serde representation of data structs is guaranteed
+//! to be stable, their Rust representation might not be. Use with caution.
+//! </div>
+//!
+//! Read more about data providers: [`icu_provider`]
+
+use crate::ListLength;
+use alloc::borrow::Cow;
+use icu_provider::DataMarker;
+use icu_provider::{yoke, zerofrom};
+
+mod serde_dfa;
+pub use serde_dfa::SerdeDFA;
+
+/// Symbols and metadata required for [`ListFormatter`](crate::ListFormatter).
+///
+/// <div class="stab unstable">
+/// 🚧 This code is considered unstable; it may change at any time, in breaking or non-breaking ways,
+/// including in SemVer minor releases. While the serde representation of data structs is guaranteed
+/// to be stable, their Rust representation might not be. Use with caution.
+/// </div>
+#[icu_provider::data_struct(
+    AndListV1Marker = "list/and@1",
+    OrListV1Marker = "list/or@1",
+    UnitListV1Marker = "list/unit@1"
+)]
+#[derive(Clone, Debug)]
+#[cfg_attr(
+    feature = "datagen",
+    derive(serde::Serialize, databake::Bake),
+    databake(path = icu_list::provider),
+)]
+pub struct ListFormatterPatternsV1<'data>(
+    #[cfg_attr(feature = "datagen", serde(with = "deduplicating_array"))]
+    /// The patterns in the order start, middle, end, pair, short_start, short_middle,
+    /// short_end, short_pair, narrow_start, narrow_middle, narrow_end, narrow_pair,
+    pub [ConditionalListJoinerPattern<'data>; 12],
+);
+
+#[cfg(feature = "serde")]
+impl<'de> serde::Deserialize<'de> for ListFormatterPatternsV1<'de> {
+    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+    where
+        D: serde::de::Deserializer<'de>,
+    {
+        #[cfg(not(feature = "serde_human"))]
+        if deserializer.is_human_readable() {
+            use serde::de::Error;
+            return Err(D::Error::custom(
+                    "Deserializing human-readable ListFormatter data requires the 'serde_human' feature",
+                ));
+        }
+
+        Ok(ListFormatterPatternsV1(deduplicating_array::deserialize(
+            deserializer,
+        )?))
+    }
+}
+
+pub(crate) struct ErasedListV1Marker;
+
+impl DataMarker for ErasedListV1Marker {
+    type Yokeable = ListFormatterPatternsV1<'static>;
+}
+
+impl<'data> ListFormatterPatternsV1<'data> {
+    pub(crate) fn start(&self, style: ListLength) -> &ConditionalListJoinerPattern<'data> {
+        #![allow(clippy::indexing_slicing)] // style as usize < 3
+        &self.0[4 * (style as usize)]
+    }
+
+    pub(crate) fn middle(&self, style: ListLength) -> &ConditionalListJoinerPattern<'data> {
+        #![allow(clippy::indexing_slicing)] // style as usize < 3
+        &self.0[4 * (style as usize) + 1]
+    }
+
+    pub(crate) fn end(&self, style: ListLength) -> &ConditionalListJoinerPattern<'data> {
+        #![allow(clippy::indexing_slicing)] // style as usize < 3
+        &self.0[4 * (style as usize) + 2]
+    }
+
+    pub(crate) fn pair(&self, style: ListLength) -> &ConditionalListJoinerPattern<'data> {
+        #![allow(clippy::indexing_slicing)] // style as usize < 3
+        &self.0[4 * (style as usize) + 3]
+    }
+}
+
+/// A pattern that can behave conditionally on the next element.
+///
+/// <div class="stab unstable">
+/// 🚧 This code is considered unstable; it may change at any time, in breaking or non-breaking ways,
+/// including in SemVer minor releases. While the serde representation of data structs is guaranteed
+/// to be stable, their Rust representation might not be. Use with caution.
+/// </div>
+#[derive(Clone, Debug, yoke::Yokeable, zerofrom::ZeroFrom)]
+#[cfg_attr(
+    feature = "datagen",
+    derive(PartialEq, serde::Serialize, databake::Bake),
+    databake(path = icu_list::provider),
+)]
+#[cfg_attr(feature = "serde", derive(serde::Deserialize))]
+pub struct ConditionalListJoinerPattern<'data> {
+    /// The default pattern
+    #[cfg_attr(feature = "serde", serde(borrow))]
+    pub default: ListJoinerPattern<'data>,
+    /// And optional special case
+    #[cfg_attr(
+        feature = "serde",
+        serde(borrow, deserialize_with = "SpecialCasePattern::deserialize_option")
+    )]
+    pub special_case: Option<SpecialCasePattern<'data>>,
+}
+
+/// The special case of a [`ConditionalListJoinerPattern`]
+///
+/// <div class="stab unstable">
+/// 🚧 This code is considered unstable; it may change at any time, in breaking or non-breaking ways,
+/// including in SemVer minor releases. While the serde representation of data structs is guaranteed
+/// to be stable, their Rust representation might not be. Use with caution.
+/// </div>
+#[derive(Clone, Debug, yoke::Yokeable, zerofrom::ZeroFrom)]
+#[cfg_attr(
+    feature = "datagen",
+    derive(PartialEq, serde::Serialize, databake::Bake),
+    databake(path = icu_list::provider),
+)]
+pub struct SpecialCasePattern<'data> {
+    /// The condition on the following element
+    pub condition: SerdeDFA<'data>,
+    /// The pattern if the condition matches
+    pub pattern: ListJoinerPattern<'data>,
+}
+
+#[cfg(feature = "serde")]
+impl<'data> SpecialCasePattern<'data> {
+    // If the condition doesn't deserialize, the whole special case becomes `None`
+    fn deserialize_option<'de: 'data, D>(deserializer: D) -> Result<Option<Self>, D::Error>
+    where
+        D: serde::de::Deserializer<'de>,
+    {
+        use serde::Deserialize;
+
+        #[derive(Deserialize)]
+        struct SpecialCasePatternOptionalDfa<'data> {
+            #[cfg_attr(
+                feature = "serde",
+                serde(borrow, deserialize_with = "SerdeDFA::maybe_deserialize")
+            )]
+            pub condition: Option<SerdeDFA<'data>>,
+            #[cfg_attr(feature = "serde", serde(borrow))]
+            pub pattern: ListJoinerPattern<'data>,
+        }
+
+        Ok(
+            match Option::<SpecialCasePatternOptionalDfa<'data>>::deserialize(deserializer)? {
+                Some(SpecialCasePatternOptionalDfa {
+                    condition: Some(condition),
+                    pattern,
+                }) => Some(SpecialCasePattern { condition, pattern }),
+                _ => None,
+            },
+        )
+    }
+}
+
+/// A pattern containing two numeric placeholders ("{0}, and {1}.")
+///
+/// <div class="stab unstable">
+/// 🚧 This code is considered unstable; it may change at any time, in breaking or non-breaking ways,
+/// including in SemVer minor releases. While the serde representation of data structs is guaranteed
+/// to be stable, their Rust representation might not be. Use with caution.
+/// </div>
+#[derive(Clone, Debug, PartialEq, yoke::Yokeable, zerofrom::ZeroFrom)]
+#[cfg_attr(feature = "datagen", derive(serde::Serialize))]
+pub struct ListJoinerPattern<'data> {
+    /// The pattern string without the placeholders
+    pub(crate) string: Cow<'data, str>,
+    /// The index of the first placeholder. Always <= index_1.
+    // Always 0 for CLDR data, so we don't need to serialize it.
+    // In-memory we have free space for it as index_1 doesn't
+    // fill a word.
+    #[cfg_attr(feature = "datagen", serde(skip))]
+    pub(crate) index_0: u8,
+    /// The index of the second placeholder. Always < string.len().
+    pub(crate) index_1: u8,
+}
+
+#[cfg(feature = "serde")]
+impl<'de: 'data, 'data> serde::Deserialize<'de> for ListJoinerPattern<'data> {
+    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+    where
+        D: serde::Deserializer<'de>,
+    {
+        #[derive(serde::Deserialize)]
+        struct Dummy<'data> {
+            #[cfg_attr(feature = "serde", serde(borrow))]
+            string: Cow<'data, str>,
+            index_1: u8,
+        }
+        let Dummy { string, index_1 } = Dummy::deserialize(deserializer)?;
+
+        if index_1 as usize > string.len() {
+            use serde::de::Error;
+            Err(D::Error::custom("invalid index_1"))
+        } else {
+            Ok(ListJoinerPattern {
+                string,
+                index_0: 0,
+                index_1,
+            })
+        }
+    }
+}
+
+impl<'a> ListJoinerPattern<'a> {
+    /// Constructs a [`ListJoinerPattern`] from raw parts. Used by databake.
+    ///
+    /// # Safety
+    /// index_1 may be at most string.len()
+    pub const unsafe fn from_parts_unchecked(string: &'a str, index_1: u8) -> Self {
+        Self {
+            string: Cow::Borrowed(string),
+            index_0: 0,
+            index_1,
+        }
+    }
+}
+
+#[cfg(feature = "datagen")]
+impl databake::Bake for ListJoinerPattern<'_> {
+    fn bake(&self, env: &databake::CrateEnv) -> databake::TokenStream {
+        env.insert("icu_list");
+        let string = (&*self.string).bake(env);
+        let index_1 = self.index_1.bake(env);
+        // Safe because our own data is safe
+        databake::quote! { unsafe {
+            ::icu_list::provider::ListJoinerPattern::from_parts_unchecked(#string, #index_1)
+        }}
+    }
+}
+
+#[cfg(all(test, feature = "datagen"))]
+#[test]
+fn databake() {
+    databake::test_bake!(
+        ListJoinerPattern,
+        const: unsafe { crate::provider::ListJoinerPattern::from_parts_unchecked(", ", 2u8) },
+        icu_list
+    );
+}