4 files changed, 5 insertions, 26 deletions
diff --git a/rust/benches/evaluator.rs b/rust/benches/evaluator.rs
index 8213dfd9ea..efd19a2165 100644
--- a/rust/benches/evaluator.rs
+++ b/rust/benches/evaluator.rs
@@ -45,7 +45,6 @@ fn bench_match_exact(b: &mut Bencher) {
         flattened_keys,
         false,
         BTreeSet::new(),
-        false,
         10,
         Some(0),
         Default::default(),
@@ -95,7 +94,6 @@ fn bench_match_word(b: &mut Bencher) {
         flattened_keys,
         false,
         BTreeSet::new(),
-        false,
         10,
         Some(0),
         Default::default(),
@@ -145,7 +143,6 @@ fn bench_match_word_miss(b: &mut Bencher) {
         flattened_keys,
         false,
         BTreeSet::new(),
-        false,
         10,
         Some(0),
         Default::default(),
@@ -195,7 +192,6 @@ fn bench_eval_message(b: &mut Bencher) {
         flattened_keys,
         false,
         BTreeSet::new(),
-        false,
         10,
         Some(0),
         Default::default(),
diff --git a/rust/src/push/base_rules.rs b/rust/src/push/base_rules.rs
index dcbca340fe..4a62b9696f 100644
--- a/rust/src/push/base_rules.rs
+++ b/rust/src/push/base_rules.rs
@@ -21,13 +21,13 @@ use lazy_static::lazy_static;
 use serde_json::Value;
 
 use super::KnownCondition;
-use crate::push::Action;
 use crate::push::Condition;
 use crate::push::EventMatchCondition;
 use crate::push::PushRule;
 use crate::push::RelatedEventMatchCondition;
 use crate::push::SetTweak;
 use crate::push::TweakValue;
+use crate::push::{Action, ExactEventMatchCondition, SimpleJsonValue};
 
 const HIGHLIGHT_ACTION: Action = Action::SetTweak(SetTweak {
     set_tweak: Cow::Borrowed("highlight"),
@@ -168,7 +168,10 @@ pub const BASE_APPEND_OVERRIDE_RULES: &[PushRule] = &[
         rule_id: Cow::Borrowed(".org.matrix.msc3952.is_room_mention"),
         priority_class: 5,
         conditions: Cow::Borrowed(&[
-            Condition::Known(KnownCondition::IsRoomMention),
+            Condition::Known(KnownCondition::ExactEventMatch(ExactEventMatchCondition {
+                key: Cow::Borrowed("content.org.matrix.msc3952.mentions.room"),
+                value: Cow::Borrowed(&SimpleJsonValue::Bool(true)),
+            })),
             Condition::Known(KnownCondition::SenderNotificationPermission {
                 key: Cow::Borrowed("room"),
             }),
diff --git a/rust/src/push/evaluator.rs b/rust/src/push/evaluator.rs
index 2eaa06ad76..55551ecb56 100644
--- a/rust/src/push/evaluator.rs
+++ b/rust/src/push/evaluator.rs
@@ -73,8 +73,6 @@ pub struct PushRuleEvaluator {
     has_mentions: bool,
     /// The user mentions that were part of the message.
     user_mentions: BTreeSet<String>,
-    /// True if the message is a room message.
-    room_mention: bool,
 
     /// The number of users in the room.
     room_member_count: u64,
@@ -116,7 +114,6 @@ impl PushRuleEvaluator {
         flattened_keys: BTreeMap<String, JsonValue>,
         has_mentions: bool,
         user_mentions: BTreeSet<String>,
-        room_mention: bool,
         room_member_count: u64,
         sender_power_level: Option<i64>,
         notification_power_levels: BTreeMap<String, i64>,
@@ -137,7 +134,6 @@ impl PushRuleEvaluator {
             body,
             has_mentions,
             user_mentions,
-            room_mention,
             room_member_count,
             notification_power_levels,
             sender_power_level,
@@ -279,7 +275,6 @@ impl PushRuleEvaluator {
                     false
                 }
             }
-            KnownCondition::IsRoomMention => self.room_mention,
             KnownCondition::ContainsDisplayName => {
                 if let Some(dn) = display_name {
                     if !dn.is_empty() {
@@ -529,7 +524,6 @@ fn push_rule_evaluator() {
         flattened_keys,
         false,
         BTreeSet::new(),
-        false,
         10,
         Some(0),
         BTreeMap::new(),
@@ -562,7 +556,6 @@ fn test_requires_room_version_supports_condition() {
         flattened_keys,
         false,
         BTreeSet::new(),
-        false,
         10,
         Some(0),
         BTreeMap::new(),
diff --git a/rust/src/push/mod.rs b/rust/src/push/mod.rs
index 253b5f367c..fdd2b2c143 100644
--- a/rust/src/push/mod.rs
+++ b/rust/src/push/mod.rs
@@ -336,8 +336,6 @@ pub enum KnownCondition {
     ExactEventPropertyContains(ExactEventMatchCondition),
     #[serde(rename = "org.matrix.msc3952.is_user_mention")]
     IsUserMention,
-    #[serde(rename = "org.matrix.msc3952.is_room_mention")]
-    IsRoomMention,
     ContainsDisplayName,
     RoomMemberCount {
         #[serde(skip_serializing_if = "Option::is_none")]
@@ -668,17 +666,6 @@ fn test_deserialize_unstable_msc3952_user_condition() {
 }
 
 #[test]
-fn test_deserialize_unstable_msc3952_room_condition() {
-    let json = r#"{"kind":"org.matrix.msc3952.is_room_mention"}"#;
-
-    let condition: Condition = serde_json::from_str(json).unwrap();
-    assert!(matches!(
-        condition,
-        Condition::Known(KnownCondition::IsRoomMention)
-    ));
-}
-
-#[test]
 fn test_deserialize_custom_condition() {
     let json = r#"{"kind":"custom_tag"}"#;