diff --git a/ruma-events-macros/src/gen.rs b/ruma-events-macros/src/gen.rs
index a0ee1d8d..db649ce0 100644
--- a/ruma-events-macros/src/gen.rs
+++ b/ruma-events-macros/src/gen.rs
@@ -95,7 +95,7 @@ impl ToTokens for RumaEvent {
             Content::Struct(fields) => {
                 quote! {
                     #[doc = #content_docstring]
-                    #[derive(Clone, Debug, PartialEq, serde::Serialize)]
+                    #[derive(Clone, Debug, serde::Serialize)]
                     pub struct #content_name {
                         #(#fields),*
                     }
@@ -116,7 +116,7 @@ impl ToTokens for RumaEvent {
             Content::Struct(fields) => {
                 quote! {
                     #[doc = #content_docstring]
-                    #[derive(Clone, Debug, PartialEq, serde::Deserialize)]
+                    #[derive(Clone, Debug, serde::Deserialize)]
                     pub struct #content_name {
                         #(#fields),*
                     }
@@ -216,7 +216,7 @@ impl ToTokens for RumaEvent {
         let event_type_name = self.event_type.value();
         let output = quote!(
             #(#attrs)*
-            #[derive(Clone, PartialEq, Debug, serde::Serialize, ruma_events_macros::FromRaw)]
+            #[derive(Clone, Debug, serde::Serialize, ruma_events_macros::FromRaw)]
             #[serde(rename = #event_type_name, tag = "type")]
             pub struct #name {
                 #(#event_fields),*
@@ -250,7 +250,7 @@ impl ToTokens for RumaEvent {
                 use super::*;
 
                 #(#attrs)*
-                #[derive(Clone, Debug, PartialEq, serde::Deserialize)]
+                #[derive(Clone, Debug, serde::Deserialize)]
                 pub struct #name {
                     #(#event_fields),*
                 }
diff --git a/src/algorithm.rs b/src/algorithm.rs
index ba3a5284..803f3f61 100644
--- a/src/algorithm.rs
+++ b/src/algorithm.rs
@@ -1,14 +1,10 @@
-use std::{
-    borrow::Cow,
-    fmt::{Display, Formatter, Result as FmtResult},
-};
+use std::fmt::{Display, Formatter, Result as FmtResult};
 
 use serde::{Deserialize, Serialize};
 
 /// An encryption algorithm to be used to encrypt messages sent to a room.
 #[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
-// Cow<str> because deserialization sometimes needs to copy to unescape things
-#[serde(from = "Cow<'_, str>", into = "String")]
+#[serde(from = "String", into = "String")]
 pub enum Algorithm {
     /// Olm version 1 using Curve25519, AES-256, and SHA-256.
     OlmV1Curve25519AesSha2,
@@ -40,22 +36,19 @@ impl Display for Algorithm {
     }
 }
 
-impl From<Cow<'_, str>> for Algorithm {
-    fn from(s: Cow<'_, str>) -> Algorithm {
-        match &s as &str {
+impl<T> From<T> for Algorithm
+where
+    T: Into<String> + AsRef<str>,
+{
+    fn from(s: T) -> Algorithm {
+        match s.as_ref() {
             "m.olm.v1.curve25519-aes-sha2" => Algorithm::OlmV1Curve25519AesSha2,
             "m.megolm.v1.aes-sha2" => Algorithm::MegolmV1AesSha2,
-            _ => Algorithm::Custom(s.into_owned()),
+            _ => Algorithm::Custom(s.into()),
         }
     }
 }
 
-impl From<&str> for Algorithm {
-    fn from(s: &str) -> Algorithm {
-        Algorithm::from(Cow::Borrowed(s))
-    }
-}
-
 impl From<Algorithm> for String {
     fn from(algorithm: Algorithm) -> String {
         algorithm.to_string()
diff --git a/src/call/candidates.rs b/src/call/candidates.rs
index cb275658..e5319956 100644
--- a/src/call/candidates.rs
+++ b/src/call/candidates.rs
@@ -25,7 +25,7 @@ ruma_event! {
 }
 
 /// An ICE (Interactive Connectivity Establishment) candidate.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 #[serde(rename_all = "camelCase")]
 pub struct Candidate {
     /// The SDP "a" line of the candidate.
diff --git a/src/custom.rs b/src/custom.rs
index 0e95c171..17c88797 100644
--- a/src/custom.rs
+++ b/src/custom.rs
@@ -10,7 +10,7 @@ use serde::Serialize;
 use serde_json::Value as JsonValue;
 
 /// A custom event not covered by the Matrix specification.
-#[derive(Clone, Debug, FromRaw, PartialEq, Serialize)]
+#[derive(Clone, Debug, FromRaw, Serialize)]
 pub struct CustomEvent {
     /// The event's content.
     pub content: CustomEventContent,
@@ -38,7 +38,7 @@ impl Event for CustomEvent {
 }
 
 /// A custom room event not covered by the Matrix specification.
-#[derive(Clone, Debug, FromRaw, PartialEq, Serialize)]
+#[derive(Clone, Debug, FromRaw, Serialize)]
 pub struct CustomRoomEvent {
     /// The event's content.
     pub content: CustomRoomEventContent,
@@ -108,7 +108,7 @@ impl RoomEvent for CustomRoomEvent {
 }
 
 /// A custom state event not covered by the Matrix specification.
-#[derive(Clone, Debug, FromRaw, PartialEq, Serialize)]
+#[derive(Clone, Debug, FromRaw, Serialize)]
 pub struct CustomStateEvent {
     /// The event's content.
     pub content: CustomStateEventContent,
@@ -204,7 +204,7 @@ pub(crate) mod raw {
     };
 
     /// A custom event not covered by the Matrix specification.
-    #[derive(Clone, Debug, PartialEq, Deserialize)]
+    #[derive(Clone, Debug, Deserialize)]
     pub struct CustomEvent {
         /// The event's content.
         pub content: CustomEventContent,
@@ -214,7 +214,7 @@ pub(crate) mod raw {
     }
 
     /// A custom room event not covered by the Matrix specification.
-    #[derive(Clone, Debug, PartialEq, Deserialize)]
+    #[derive(Clone, Debug, Deserialize)]
     pub struct CustomRoomEvent {
         /// The event's content.
         pub content: CustomRoomEventContent,
@@ -236,7 +236,7 @@ pub(crate) mod raw {
     }
 
     /// A custom state event not covered by the Matrix specification.
-    #[derive(Clone, Debug, PartialEq, Deserialize)]
+    #[derive(Clone, Debug, Deserialize)]
     pub struct CustomStateEvent {
         /// The event's content.
         pub content: CustomStateEventContent,
diff --git a/src/event_type.rs b/src/event_type.rs
index 445c0973..95113922 100644
--- a/src/event_type.rs
+++ b/src/event_type.rs
@@ -1,14 +1,10 @@
-use std::{
-    borrow::Cow,
-    fmt::{Display, Formatter, Result as FmtResult},
-};
+use std::fmt::{Display, Formatter, Result as FmtResult};
 
 use serde::{Deserialize, Serialize};
 
 /// The type of an event.
 #[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
-// Cow<str> because deserialization sometimes needs to copy to unescape things
-#[serde(from = "Cow<'_, str>", into = "String")]
+#[serde(from = "String", into = "String")]
 pub enum EventType {
     /// m.call.answer
     CallAnswer,
@@ -204,9 +200,12 @@ impl Display for EventType {
     }
 }
 
-impl From<Cow<'_, str>> for EventType {
-    fn from(s: Cow<'_, str>) -> EventType {
-        match &s as &str {
+impl<T> From<T> for EventType
+where
+    T: Into<String> + AsRef<str>,
+{
+    fn from(s: T) -> EventType {
+        match s.as_ref() {
             "m.call.answer" => EventType::CallAnswer,
             "m.call.candidates" => EventType::CallCandidates,
             "m.call.hangup" => EventType::CallHangup,
@@ -250,17 +249,11 @@ impl From<Cow<'_, str>> for EventType {
             "m.sticker" => EventType::Sticker,
             "m.tag" => EventType::Tag,
             "m.typing" => EventType::Typing,
-            _ => EventType::Custom(s.into_owned()),
+            _ => EventType::Custom(s.into()),
         }
     }
 }
 
-impl<'a> From<&str> for EventType {
-    fn from(s: &str) -> EventType {
-        EventType::from(Cow::Borrowed(s))
-    }
-}
-
 impl From<EventType> for String {
     fn from(event_type: EventType) -> String {
         event_type.to_string()
diff --git a/src/ignored_user_list.rs b/src/ignored_user_list.rs
index cdf189df..726993c5 100644
--- a/src/ignored_user_list.rs
+++ b/src/ignored_user_list.rs
@@ -6,7 +6,7 @@ use serde::{Deserialize, Serialize};
 use crate::{EventType, FromRaw};
 
 /// A list of users to ignore.
-#[derive(Clone, Debug, PartialEq, Serialize)]
+#[derive(Clone, Debug, Serialize)]
 #[serde(rename = "m.ignored_user_list", tag = "type")]
 pub struct IgnoredUserListEvent {
     /// The event's content.
@@ -24,7 +24,7 @@ impl FromRaw for IgnoredUserListEvent {
 }
 
 /// The payload for `IgnoredUserListEvent`.
-#[derive(Clone, Debug, PartialEq, Serialize)]
+#[derive(Clone, Debug, Serialize)]
 pub struct IgnoredUserListEventContent {
     /// A list of users to ignore.
     #[serde(with = "ruma_serde::vec_as_map_of_empty")]
@@ -110,8 +110,8 @@ mod tests {
 
         assert_matches!(
             from_json_value::<EventJson<IgnoredUserListEvent>>(json)
-            .unwrap()
-            .deserialize()
+                .unwrap()
+                .deserialize()
                 .unwrap(),
             IgnoredUserListEvent {
                 content: IgnoredUserListEventContent { ignored_users, },
diff --git a/src/json.rs b/src/json.rs
index 386df371..e9a7f729 100644
--- a/src/json.rs
+++ b/src/json.rs
@@ -95,12 +95,6 @@ impl<T> Debug for EventJson<T> {
     }
 }
 
-impl<T> PartialEq for EventJson<T> {
-    fn eq(&self, other: &Self) -> bool {
-        self.json.get() == other.json.get()
-    }
-}
-
 impl<'de, T> Deserialize<'de> for EventJson<T> {
     fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
     where
diff --git a/src/key/verification/cancel.rs b/src/key/verification/cancel.rs
index 6012395e..d4430ade 100644
--- a/src/key/verification/cancel.rs
+++ b/src/key/verification/cancel.rs
@@ -1,9 +1,6 @@
 //! Types for the *m.key.verification.cancel* event.
 
-use std::{
-    borrow::Cow,
-    fmt::{Display, Formatter, Result as FmtResult},
-};
+use std::fmt::{Display, Formatter, Result as FmtResult};
 
 use ruma_events_macros::ruma_event;
 use serde::{Deserialize, Serialize};
@@ -34,8 +31,7 @@ ruma_event! {
 ///
 /// Custom error codes should use the Java package naming convention.
 #[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
-// Cow<str> because deserialization sometimes needs to copy to unescape things
-#[serde(from = "Cow<'_, str>", into = "String")]
+#[serde(from = "String", into = "String")]
 pub enum CancelCode {
     /// The user cancelled the verification.
     User,
@@ -103,9 +99,12 @@ impl Display for CancelCode {
     }
 }
 
-impl From<Cow<'_, str>> for CancelCode {
-    fn from(s: Cow<'_, str>) -> CancelCode {
-        match &s as &str {
+impl<T> From<T> for CancelCode
+where
+    T: Into<String> + AsRef<str>,
+{
+    fn from(s: T) -> CancelCode {
+        match s.as_ref() {
             "m.user" => CancelCode::User,
             "m.timeout" => CancelCode::Timeout,
             "m.unknown_transaction" => CancelCode::UnknownTransaction,
@@ -115,17 +114,11 @@ impl From<Cow<'_, str>> for CancelCode {
             "m.user_mismatch" => CancelCode::UserMismatch,
             "m.invalid_message" => CancelCode::InvalidMessage,
             "m.accepted" => CancelCode::Accepted,
-            _ => CancelCode::Custom(s.into_owned()),
+            _ => CancelCode::Custom(s.into()),
         }
     }
 }
 
-impl From<&str> for CancelCode {
-    fn from(s: &str) -> CancelCode {
-        CancelCode::from(Cow::Borrowed(s))
-    }
-}
-
 impl From<CancelCode> for String {
     fn from(cancel_code: CancelCode) -> String {
         cancel_code.to_string()
diff --git a/src/key/verification/start.rs b/src/key/verification/start.rs
index b94511b3..9df6739f 100644
--- a/src/key/verification/start.rs
+++ b/src/key/verification/start.rs
@@ -12,7 +12,7 @@ use crate::{EventType, InvalidInput, TryFromRaw};
 /// Begins an SAS key verification process.
 ///
 /// Typically sent as a to-device event.
-#[derive(Clone, Debug, PartialEq, Serialize)]
+#[derive(Clone, Debug, Serialize)]
 #[serde(tag = "type", rename = "m.key.verification.start")]
 pub struct StartEvent {
     /// The event's content.
@@ -20,7 +20,7 @@ pub struct StartEvent {
 }
 
 /// The payload of an *m.key.verification.start* event.
-#[derive(Clone, Debug, PartialEq, Serialize)]
+#[derive(Clone, Debug, Serialize)]
 #[serde(untagged)]
 pub enum StartEventContent {
     /// The *m.sas.v1* verification method.
@@ -103,14 +103,14 @@ pub(crate) mod raw {
     /// Begins an SAS key verification process.
     ///
     /// Typically sent as a to-device event.
-    #[derive(Clone, Debug, PartialEq, Deserialize)]
+    #[derive(Clone, Debug, Deserialize)]
     pub struct StartEvent {
         /// The event's content.
         pub content: StartEventContent,
     }
 
     /// The payload of an *m.key.verification.start* event.
-    #[derive(Clone, Debug, PartialEq)]
+    #[derive(Clone, Debug)]
     pub enum StartEventContent {
         /// The *m.sas.v1* verification method.
         MSasV1(MSasV1Content),
@@ -158,7 +158,7 @@ pub(crate) mod raw {
 }
 
 /// The payload of an *m.key.verification.start* event using the *m.sas.v1* method.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 #[serde(tag = "method", rename = "m.sas.v1")]
 pub struct MSasV1Content {
     /// The device ID which is initiating the process.
@@ -193,7 +193,7 @@ pub struct MSasV1Content {
 }
 
 /// Options for creating an `MSasV1Content` with `MSasV1Content::new`.
-#[derive(Clone, Debug, PartialEq, Deserialize)]
+#[derive(Clone, Debug, Deserialize)]
 pub struct MSasV1ContentOptions {
     /// The device ID which is initiating the process.
     pub from_device: DeviceId,
diff --git a/src/lib.rs b/src/lib.rs
index a630194d..0175e64f 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -224,7 +224,7 @@ pub trait StateEvent: RoomEvent {
 
 /// Extra information about an event that is not incorporated into the event's
 /// hash.
-#[derive(Clone, Debug, Default, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Default, Deserialize, Serialize)]
 pub struct UnsignedData {
     /// The time in milliseconds that has elapsed since the event was sent. This
     /// field is generated by the local homeserver, and may be incorrect if the
@@ -232,9 +232,11 @@ pub struct UnsignedData {
     /// cause the age to either be negative or greater than it actually is.
     #[serde(skip_serializing_if = "Option::is_none")]
     pub age: Option<Int>,
+
     /// The event that redacted this event, if any.
     #[serde(skip_serializing_if = "Option::is_none")]
     pub redacted_because: Option<EventJson<RedactionEvent>>,
+
     /// The client-supplied transaction ID, if the client being given the event
     /// is the same one which sent it.
     #[serde(skip_serializing_if = "Option::is_none")]
diff --git a/src/push_rules.rs b/src/push_rules.rs
index af35a716..65b8fb17 100644
--- a/src/push_rules.rs
+++ b/src/push_rules.rs
@@ -31,7 +31,7 @@ ruma_event! {
 ///
 /// For example, some rules may only be applied for messages from a particular sender, a particular
 /// room, or by default. The push ruleset contains the entire set of scopes and rules.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct Ruleset {
     /// These rules configure behaviour for (unencrypted) messages that match certain patterns.
     pub content: Vec<PatternedPushRule>,
@@ -56,7 +56,7 @@ pub struct Ruleset {
 ///
 /// These rules are stored on the user's homeserver. They are manually configured by the user, who
 /// can create and view them via the Client/Server API.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct PushRule {
     /// Actions to determine if and how a notification is delivered for events matching this rule.
     pub actions: Vec<Action>,
@@ -74,7 +74,7 @@ pub struct PushRule {
 /// Like `PushRule`, but with an additional `conditions` field.
 ///
 /// Only applicable to underride and override rules.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct ConditionalPushRule {
     /// Actions to determine if and how a notification is delivered for events matching this rule.
     pub actions: Vec<Action>,
@@ -97,7 +97,7 @@ pub struct ConditionalPushRule {
 /// Like `PushRule`, but with an additional `pattern` field.
 ///
 /// Only applicable to content rules.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct PatternedPushRule {
     /// Actions to determine if and how a notification is delivered for events matching this rule.
     pub actions: Vec<Action>,
@@ -116,7 +116,7 @@ pub struct PatternedPushRule {
 }
 
 /// An action affects if and how a notification is delivered for a matching event.
-#[derive(Clone, Debug, PartialEq)]
+#[derive(Clone, Debug)]
 pub enum Action {
     /// This causes each matching event to generate a notification.
     Notify,
@@ -229,7 +229,7 @@ impl<'de> Deserialize<'de> for Action {
 }
 
 /// Values for the `set_tweak` action.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 #[serde(tag = "set_tweak", rename_all = "lowercase")]
 pub enum Tweak {
     /// A string representing the sound to be played when this notification arrives.
@@ -256,7 +256,7 @@ pub enum Tweak {
 }
 
 /// A condition that must apply for an associated push rule's action to be taken.
-#[derive(Clone, Debug, PartialEq)]
+#[derive(Clone, Debug)]
 pub enum PushCondition {
     /// This is a glob pattern match on a field of the event.
     EventMatch(EventMatchCondition),
@@ -355,7 +355,7 @@ impl<'de> Deserialize<'de> for PushCondition {
 }
 
 /// A push condition that matches a glob pattern match on a field of the event.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 #[serde(tag = "kind", rename = "event_match")]
 pub struct EventMatchCondition {
     /// The dot-separated field of the event to match.
@@ -369,7 +369,7 @@ pub struct EventMatchCondition {
 }
 
 /// A push condition that matches the current number of members in the room.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 #[serde(tag = "kind", rename = "room_member_count")]
 pub struct RoomMemberCountCondition {
     /// A decimal integer optionally prefixed by one of `==`, `<`, `>`, `>=` or `<=`.
@@ -381,7 +381,7 @@ pub struct RoomMemberCountCondition {
 
 /// A push condition that takes into account the current power levels in the room, ensuring the
 /// sender of the event has high enough power to trigger the notification.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 #[serde(tag = "kind", rename = "sender_notification_permission")]
 pub struct SenderNotificationPermissionCondition {
     /// The field in the power level event the user needs a minimum power level for.
diff --git a/src/receipt.rs b/src/receipt.rs
index 6b0b9420..f18cd8cd 100644
--- a/src/receipt.rs
+++ b/src/receipt.rs
@@ -29,7 +29,7 @@ ruma_event! {
 }
 
 /// A collection of receipts.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct Receipts {
     /// A collection of users who have sent *m.read* receipts for this event.
     #[serde(default, rename = "m.read")]
@@ -42,7 +42,7 @@ pub struct Receipts {
 pub type UserReceipts = BTreeMap<UserId, Receipt>;
 
 /// An acknowledgement of an event.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct Receipt {
     /// The time when the receipt was sent.
     #[serde(
diff --git a/src/room.rs b/src/room.rs
index cb93f35a..2bc30294 100644
--- a/src/room.rs
+++ b/src/room.rs
@@ -28,7 +28,7 @@ pub mod tombstone;
 pub mod topic;
 
 /// Metadata about an image.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct ImageInfo {
     /// The height of the image in pixels.
     #[serde(rename = "h", skip_serializing_if = "Option::is_none")]
@@ -60,7 +60,7 @@ pub struct ImageInfo {
 }
 
 /// Metadata about a thumbnail.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct ThumbnailInfo {
     /// The height of the thumbnail in pixels.
     #[serde(rename = "h", skip_serializing_if = "Option::is_none")]
@@ -80,7 +80,7 @@ pub struct ThumbnailInfo {
 }
 
 /// A file sent to a room with end-to-end encryption enabled.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct EncryptedFile {
     /// The URL to the file.
     pub url: String,
@@ -100,7 +100,7 @@ pub struct EncryptedFile {
 }
 
 /// A [JSON Web Key](https://tools.ietf.org/html/rfc7517#appendix-A.3) object.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct JsonWebKey {
     /// Key type. Must be `oct`.
     pub kty: String,
diff --git a/src/room/create.rs b/src/room/create.rs
index 31ba4896..13593be6 100644
--- a/src/room/create.rs
+++ b/src/room/create.rs
@@ -32,7 +32,7 @@ ruma_event! {
 }
 
 /// A reference to an old room replaced during a room version upgrade.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct PreviousRoom {
     /// The ID of the old room.
     pub room_id: RoomId,
diff --git a/src/room/encrypted.rs b/src/room/encrypted.rs
index 714052e1..6a616182 100644
--- a/src/room/encrypted.rs
+++ b/src/room/encrypted.rs
@@ -12,7 +12,7 @@ use crate::{Algorithm, EventType, FromRaw, UnsignedData};
 ///
 /// This type is to be used within a room. For a to-device event, use `EncryptedEventContent`
 /// directly.
-#[derive(Clone, Debug, PartialEq, Serialize)]
+#[derive(Clone, Debug, Serialize)]
 #[serde(tag = "type", rename = "m.room.encrypted")]
 pub struct EncryptedEvent {
     /// The event's content.
@@ -33,12 +33,12 @@ pub struct EncryptedEvent {
     pub sender: UserId,
 
     /// Additional key-value pairs not signed by the homeserver.
-    #[serde(skip_serializing_if = "ruma_serde::is_default")]
+    #[serde(skip_serializing_if = "UnsignedData::is_empty")]
     pub unsigned: UnsignedData,
 }
 
 /// The payload for `EncryptedEvent`.
-#[derive(Clone, Debug, PartialEq, Serialize)]
+#[derive(Clone, Debug, Serialize)]
 #[serde(untagged)]
 pub enum EncryptedEventContent {
     /// An event encrypted with *m.olm.v1.curve25519-aes-sha2*.
@@ -106,7 +106,7 @@ pub(crate) mod raw {
     ///
     /// This type is to be used within a room. For a to-device event, use `EncryptedEventContent`
     /// directly.
-    #[derive(Clone, Debug, PartialEq, Deserialize)]
+    #[derive(Clone, Debug, Deserialize)]
     pub struct EncryptedEvent {
         /// The event's content.
         pub content: EncryptedEventContent,
@@ -130,7 +130,7 @@ pub(crate) mod raw {
     }
 
     /// The payload for `EncryptedEvent`.
-    #[derive(Clone, Debug, PartialEq)]
+    #[derive(Clone, Debug)]
     pub enum EncryptedEventContent {
         /// An event encrypted with *m.olm.v1.curve25519-aes-sha2*.
         OlmV1Curve25519AesSha2(OlmV1Curve25519AesSha2Content),
@@ -192,7 +192,7 @@ pub(crate) mod raw {
 }
 
 /// The payload for `EncryptedEvent` using the *m.olm.v1.curve25519-aes-sha2* algorithm.
-#[derive(Clone, Debug, Serialize, PartialEq, Deserialize)]
+#[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct OlmV1Curve25519AesSha2Content {
     /// The encryption algorithm used to encrypt this event.
     pub algorithm: Algorithm,
@@ -207,7 +207,7 @@ pub struct OlmV1Curve25519AesSha2Content {
 /// Ciphertext information holding the ciphertext and message type.
 ///
 /// Used for messages encrypted with the *m.olm.v1.curve25519-aes-sha2* algorithm.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct CiphertextInfo {
     /// The encrypted payload.
     pub body: String,
@@ -218,7 +218,7 @@ pub struct CiphertextInfo {
 }
 
 /// The payload for `EncryptedEvent` using the *m.megolm.v1.aes-sha2* algorithm.
-#[derive(Clone, Debug, Serialize, PartialEq, Deserialize)]
+#[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct MegolmV1AesSha2Content {
     /// The encryption algorithm used to encrypt this event.
     pub algorithm: Algorithm,
diff --git a/src/room/member.rs b/src/room/member.rs
index e1259345..a49fd42c 100644
--- a/src/room/member.rs
+++ b/src/room/member.rs
@@ -99,7 +99,7 @@ impl_enum! {
 }
 
 /// Information about a third party invitation.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct ThirdPartyInvite {
     /// A name which can be displayed to represent the user instead of their third party
     /// identifier.
@@ -112,7 +112,7 @@ pub struct ThirdPartyInvite {
 
 /// A block of content which has been signed, which servers can use to verify a third party
 /// invitation.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct SignedContent {
     /// The invited Matrix user ID.
     ///
@@ -128,7 +128,7 @@ pub struct SignedContent {
 }
 
 /// Translation of the membership change in `m.room.member` event.
-#[derive(Clone, Copy, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Copy, Debug, Deserialize, Serialize)]
 pub enum MembershipChange {
     /// No change.
     None,
diff --git a/src/room/message.rs b/src/room/message.rs
index 31a04efe..dedcecdf 100644
--- a/src/room/message.rs
+++ b/src/room/message.rs
@@ -12,7 +12,7 @@ use crate::{EventType, FromRaw, UnsignedData};
 pub mod feedback;
 
 /// A message sent to a room.
-#[derive(Clone, Debug, PartialEq, Serialize)]
+#[derive(Clone, Debug, Serialize)]
 #[serde(rename = "m.room.message", tag = "type")]
 pub struct MessageEvent {
     /// The event's content.
@@ -39,7 +39,7 @@ pub struct MessageEvent {
 
 /// The payload for `MessageEvent`.
 #[allow(clippy::large_enum_variant)]
-#[derive(Clone, Debug, PartialEq, Serialize)]
+#[derive(Clone, Debug, Serialize)]
 #[serde(untagged)]
 pub enum MessageEventContent {
     /// An audio message.
@@ -135,7 +135,7 @@ pub(crate) mod raw {
     use crate::UnsignedData;
 
     /// A message sent to a room.
-    #[derive(Clone, Debug, PartialEq, Deserialize)]
+    #[derive(Clone, Debug, Deserialize)]
     pub struct MessageEvent {
         /// The event's content.
         pub content: MessageEventContent,
@@ -160,7 +160,7 @@ pub(crate) mod raw {
 
     /// The payload for `MessageEvent`.
     #[allow(clippy::large_enum_variant)]
-    #[derive(Clone, Debug, PartialEq)]
+    #[derive(Clone, Debug)]
     pub enum MessageEventContent {
         /// An audio message.
         Audio(AudioMessageEventContent),
@@ -295,7 +295,7 @@ pub enum MessageType {
 }
 
 /// The payload for an audio message.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 #[serde(tag = "msgtype", rename = "m.audio")]
 pub struct AudioMessageEventContent {
     /// The textual representation of this message.
@@ -316,7 +316,7 @@ pub struct AudioMessageEventContent {
 }
 
 /// Metadata about an audio clip.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct AudioInfo {
     /// The duration of the audio in milliseconds.
     #[serde(skip_serializing_if = "Option::is_none")]
@@ -332,7 +332,7 @@ pub struct AudioInfo {
 }
 
 /// The payload for an emote message.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 #[serde(tag = "msgtype", rename = "m.emote")]
 pub struct EmoteMessageEventContent {
     /// The emote action to perform.
@@ -349,7 +349,7 @@ pub struct EmoteMessageEventContent {
 }
 
 /// The payload for a file message.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 #[serde(tag = "msgtype", rename = "m.file")]
 pub struct FileMessageEventContent {
     /// A human-readable description of the file. This is recommended to be the filename of the
@@ -375,7 +375,7 @@ pub struct FileMessageEventContent {
 }
 
 /// Metadata about a file.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct FileInfo {
     /// The mimetype of the file, e.g. "application/msword."
     #[serde(skip_serializing_if = "Option::is_none")]
@@ -399,7 +399,7 @@ pub struct FileInfo {
 }
 
 /// The payload for an image message.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 #[serde(tag = "msgtype", rename = "m.image")]
 pub struct ImageMessageEventContent {
     /// A textual representation of the image. This could be the alt text of the image, the filename
@@ -421,7 +421,7 @@ pub struct ImageMessageEventContent {
 }
 
 /// The payload for a location message.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 #[serde(tag = "msgtype", rename = "m.location")]
 pub struct LocationMessageEventContent {
     /// A description of the location e.g. "Big Ben, London, UK,"or some kind of content description
@@ -437,7 +437,7 @@ pub struct LocationMessageEventContent {
 }
 
 /// Thumbnail info associated with a location.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct LocationInfo {
     /// Metadata about the image referred to in `thumbnail_url` or `thumbnail_file`.
     #[serde(skip_serializing_if = "Option::is_none")]
@@ -455,7 +455,7 @@ pub struct LocationInfo {
 }
 
 /// The payload for a notice message.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 #[serde(tag = "msgtype", rename = "m.notice")]
 pub struct NoticeMessageEventContent {
     /// The notice text to send.
@@ -477,7 +477,7 @@ pub struct NoticeMessageEventContent {
 }
 
 /// The payload for a server notice message.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 #[serde(tag = "msgtype", rename = "m.server_notice")]
 pub struct ServerNoticeMessageEventContent {
     /// A human-readable description of the notice.
@@ -500,7 +500,7 @@ pub struct ServerNoticeMessageEventContent {
 }
 
 /// Types of server notices.
-#[derive(Clone, Copy, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Copy, Debug, Deserialize, Serialize)]
 pub enum ServerNoticeType {
     /// The server has exceeded some limit which requires the server administrator to intervene.
     #[serde(rename = "m.server_notice.usage_limit_reached")]
@@ -514,7 +514,7 @@ pub enum ServerNoticeType {
 }
 
 /// Types of usage limits.
-#[derive(Clone, Copy, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Copy, Debug, Deserialize, Serialize)]
 pub enum LimitType {
     /// The server's number of active users in the last 30 days has exceeded the maximum.
     ///
@@ -531,7 +531,7 @@ pub enum LimitType {
 }
 
 /// The payload for a text message.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 #[serde(tag = "msgtype", rename = "m.text")]
 pub struct TextMessageEventContent {
     /// The body of the message.
@@ -553,7 +553,7 @@ pub struct TextMessageEventContent {
 }
 
 /// The payload for a video message.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 #[serde(tag = "msgtype", rename = "m.video")]
 pub struct VideoMessageEventContent {
     /// A description of the video, e.g. "Gangnam Style," or some kind of content description for
@@ -575,7 +575,7 @@ pub struct VideoMessageEventContent {
 }
 
 /// Metadata about a video.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct VideoInfo {
     /// The duration of the video in milliseconds.
     #[serde(skip_serializing_if = "Option::is_none")]
@@ -615,7 +615,7 @@ pub struct VideoInfo {
 
 /// Information about related messages for
 /// [rich replies](https://matrix.org/docs/spec/client_server/r0.5.0#rich-replies).
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct RelatesTo {
     /// Information about another message being replied to.
     #[serde(rename = "m.in_reply_to")]
@@ -623,7 +623,7 @@ pub struct RelatesTo {
 }
 
 /// Information about the event a "rich reply" is replying to.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct InReplyTo {
     /// The event being replied to.
     pub event_id: EventId,
diff --git a/src/room/name.rs b/src/room/name.rs
index a1eb8166..26de8790 100644
--- a/src/room/name.rs
+++ b/src/room/name.rs
@@ -8,7 +8,7 @@ use serde::{Deserialize, Serialize};
 use crate::{EventType, InvalidInput, TryFromRaw, UnsignedData};
 
 /// A human-friendly room name designed to be displayed to the end-user.
-#[derive(Clone, Debug, PartialEq, Serialize)]
+#[derive(Clone, Debug, Serialize)]
 #[serde(rename = "m.room.name", tag = "type")]
 pub struct NameEvent {
     /// The event's content.
@@ -36,12 +36,12 @@ pub struct NameEvent {
     pub state_key: String,
 
     /// Additional key-value pairs not signed by the homeserver.
-    #[serde(skip_serializing_if = "ruma_serde::is_default")]
+    #[serde(skip_serializing_if = "UnsignedData::is_empty")]
     pub unsigned: UnsignedData,
 }
 
 /// The payload for `NameEvent`.
-#[derive(Clone, Debug, PartialEq, Serialize)]
+#[derive(Clone, Debug, Serialize)]
 pub struct NameEventContent {
     /// The name of the room. This MUST NOT exceed 255 bytes.
     pub(crate) name: Option<String>,
@@ -109,7 +109,7 @@ pub(crate) mod raw {
     use super::*;
 
     /// A human-friendly room name designed to be displayed to the end-user.
-    #[derive(Clone, Debug, PartialEq, Deserialize)]
+    #[derive(Clone, Debug, Deserialize)]
     pub struct NameEvent {
         /// The event's content.
         pub content: NameEventContent,
@@ -139,7 +139,7 @@ pub(crate) mod raw {
     }
 
     /// The payload of a `NameEvent`.
-    #[derive(Clone, Debug, PartialEq, Deserialize)]
+    #[derive(Clone, Debug, Deserialize)]
     pub struct NameEventContent {
         /// The name of the room. This MUST NOT exceed 255 bytes.
         // The spec says "A room with an m.room.name event with an absent, null, or empty name field
diff --git a/src/room/server_acl.rs b/src/room/server_acl.rs
index cdd3836b..e0535510 100644
--- a/src/room/server_acl.rs
+++ b/src/room/server_acl.rs
@@ -8,7 +8,7 @@ use serde::{Deserialize, Serialize};
 use crate::{EventType, FromRaw, UnsignedData};
 
 /// An event to indicate which servers are permitted to participate in the room.
-#[derive(Clone, Debug, PartialEq, Serialize)]
+#[derive(Clone, Debug, Serialize)]
 #[serde(rename = "m.room.server_acl", tag = "type")]
 pub struct ServerAclEvent {
     /// The event's content.
@@ -41,7 +41,7 @@ pub struct ServerAclEvent {
 }
 
 /// The payload for `ServerAclEvent`.
-#[derive(Clone, Debug, PartialEq, Serialize)]
+#[derive(Clone, Debug, Serialize)]
 pub struct ServerAclEventContent {
     /// True to allow server names that are IP address literals. False to deny. Defaults to true if
     /// missing or otherwise not a boolean.
@@ -108,7 +108,7 @@ pub(crate) mod raw {
     use super::*;
 
     /// An event to indicate which servers are permitted to participate in the room.
-    #[derive(Clone, Debug, PartialEq, Deserialize)]
+    #[derive(Clone, Debug, Deserialize)]
     pub struct ServerAclEvent {
         /// The event's content.
         pub content: ServerAclEventContent,
@@ -138,7 +138,7 @@ pub(crate) mod raw {
     }
 
     /// The payload for `ServerAclEvent`.
-    #[derive(Clone, Debug, PartialEq, Deserialize)]
+    #[derive(Clone, Debug, Deserialize)]
     pub struct ServerAclEventContent {
         /// True to allow server names that are IP address literals. False to deny. Defaults to true
         /// if missing or otherwise not a boolean.
diff --git a/src/room/third_party_invite.rs b/src/room/third_party_invite.rs
index a4089ea0..3107dc0d 100644
--- a/src/room/third_party_invite.rs
+++ b/src/room/third_party_invite.rs
@@ -30,7 +30,7 @@ ruma_event! {
 }
 
 /// A public key for signing a third party invite token.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct PublicKey {
     /// An optional URL which can be fetched to validate whether the key has been revoked.
     ///
diff --git a/src/room_key_request.rs b/src/room_key_request.rs
index eac4501d..fa94a06b 100644
--- a/src/room_key_request.rs
+++ b/src/room_key_request.rs
@@ -60,7 +60,7 @@ impl_enum! {
 }
 
 /// Information about a requested key.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct RequestedKeyInfo {
     /// The encryption algorithm the requested key in this event is to be used with.
     pub algorithm: Algorithm,
diff --git a/src/stripped.rs b/src/stripped.rs
index 468a1e0c..8297d9de 100644
--- a/src/stripped.rs
+++ b/src/stripped.rs
@@ -65,7 +65,7 @@ pub enum AnyStrippedStateEvent {
 }
 
 /// A "stripped-down" version of a core state event.
-#[derive(Clone, Debug, PartialEq, Serialize)]
+#[derive(Clone, Debug, Serialize)]
 pub struct StrippedStateEvent<C> {
     /// Data specific to the event type.
     pub content: C,
diff --git a/src/tag.rs b/src/tag.rs
index 7c170d92..45e8781b 100644
--- a/src/tag.rs
+++ b/src/tag.rs
@@ -18,7 +18,7 @@ ruma_event! {
 }
 
 /// Information about a tag.
-#[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct TagInfo {
     /// Value to use for lexicographically ordering rooms with this tag.
     #[serde(skip_serializing_if = "Option::is_none")]
diff --git a/src/to_device.rs b/src/to_device.rs
index 841b81f9..966c542f 100644
--- a/src/to_device.rs
+++ b/src/to_device.rs
@@ -24,7 +24,7 @@ use crate::{
 
 /// To-device versions of events that will appear in the to-device part of a
 /// sync response.
-#[derive(Clone, Debug, PartialEq, Serialize)]
+#[derive(Clone, Debug, Serialize)]
 #[allow(clippy::large_enum_variant)]
 pub enum AnyToDeviceEvent {
     /// To-device version of the "m.dummy" event.
@@ -51,7 +51,7 @@ pub enum AnyToDeviceEvent {
     KeyVerificationRequest(ToDeviceVerificationRequest),
 }
 
-#[derive(Clone, Debug, PartialEq, Serialize)]
+#[derive(Clone, Debug, Serialize)]
 /// To-device event.
 pub struct ToDeviceEvent<C> {
     /// The unique identifier for the user who sent this event.