diff --git a/CHANGELOG.md b/CHANGELOG.md
index 979231d18c7..fc3201cf8c2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased](https://github.com/open-telemetry/opentelemetry-python/compare/v1.11.1-0.30b1...HEAD)
 
+- Update to semantic conventions v1.11.0
+  ([#2669](https://github.com/open-telemetry/opentelemetry-python/pull/2669))
 - Update opentelemetry-proto to v0.17.0
   ([#2668](https://github.com/open-telemetry/opentelemetry-python/pull/2668))
 - Add CallbackOptions to observable instrument callback params
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/resource/__init__.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/resource/__init__.py
index 710c30a77b4..dc24d22b5fc 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/resource/__init__.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/resource/__init__.py
@@ -150,6 +150,12 @@ class ResourceAttributes:
     Note: It's recommended this value represents a human readable version of the device model rather than a machine readable alternative.
     """
 
+    DEVICE_MANUFACTURER = "device.manufacturer"
+    """
+    The name of the device manufacturer.
+    Note: The Android OS provides this field via [Build](https://developer.android.com/reference/android/os/Build#MANUFACTURER). iOS apps SHOULD hardcode the value `Apple`.
+    """
+
     FAAS_NAME = "faas.name"
     """
     The name of the single function that this runtime instance executes.
@@ -610,7 +616,7 @@ class OsTypeValues(Enum):
     """AIX (Advanced Interactive eXecutive)."""
 
     SOLARIS = "solaris"
-    """Oracle Solaris."""
+    """SunOS, Oracle Solaris."""
 
     Z_OS = "z_os"
     """IBM z/OS."""
diff --git a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/trace/__init__.py b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/trace/__init__.py
index a762d88c2c2..36bab3d1a13 100644
--- a/opentelemetry-semantic-conventions/src/opentelemetry/semconv/trace/__init__.py
+++ b/opentelemetry-semantic-conventions/src/opentelemetry/semconv/trace/__init__.py
@@ -24,6 +24,37 @@ class SpanAttributes:
     Note: This may be different from `faas.id` if an alias is involved.
     """
 
+    CLOUDEVENTS_EVENT_ID = "cloudevents.event_id"
+    """
+    The [event_id](https://github.com/cloudevents/spec/blob/v1.0.2/cloudevents/spec.md#id) uniquely identifies the event.
+    """
+
+    CLOUDEVENTS_EVENT_SOURCE = "cloudevents.event_source"
+    """
+    The [source](https://github.com/cloudevents/spec/blob/v1.0.2/cloudevents/spec.md#source-1) identifies the context in which an event happened.
+    """
+
+    CLOUDEVENTS_EVENT_SPEC_VERSION = "cloudevents.event_spec_version"
+    """
+    The [version of the CloudEvents specification](https://github.com/cloudevents/spec/blob/v1.0.2/cloudevents/spec.md#specversion) which the event uses.
+    """
+
+    CLOUDEVENTS_EVENT_TYPE = "cloudevents.event_type"
+    """
+    The [event_type](https://github.com/cloudevents/spec/blob/v1.0.2/cloudevents/spec.md#type) contains a value describing the type of event related to the originating occurrence.
+    """
+
+    CLOUDEVENTS_EVENT_SUBJECT = "cloudevents.event_subject"
+    """
+    The [subject](https://github.com/cloudevents/spec/blob/v1.0.2/cloudevents/spec.md#subject) of the event in the context of the event producer (identified by source).
+    """
+
+    OPENTRACING_REF_TYPE = "opentracing.ref_type"
+    """
+    Parent-child Reference type.
+    Note: The causal relationship between a child Span and a parent Span.
+    """
+
     DB_SYSTEM = "db.system"
     """
     An identifier for the database management system (DBMS) product being used. See below for a list of well-known identifiers.
@@ -65,6 +96,7 @@ class SpanAttributes:
     NET_PEER_NAME = "net.peer.name"
     """
     Remote hostname or similar, see note below.
+    Note: `net.peer.name` SHOULD NOT be set if capturing it would require an extra DNS lookup.
     """
 
     NET_PEER_IP = "net.peer.ip"
@@ -170,7 +202,7 @@ class SpanAttributes:
 whether it will escape the scope of a span.
 However, it is trivial to know that an exception
 will escape, if one checks for an active exception just before ending the span,
-as done in the [example above](#exception-end-example).
+as done in the [example above](#recording-an-exception).
 
 It follows that an exception may still escape the scope of the span
 even if the `exception.escaped` attribute was not set or set to false,
@@ -284,6 +316,11 @@ class SpanAttributes:
     The size of the uncompressed response payload body after transport decoding. Not set if transport encoding not used.
     """
 
+    HTTP_RETRY_COUNT = "http.retry_count"
+    """
+    The ordinal number of request re-sending attempt.
+    """
+
     HTTP_SERVER_NAME = "http.server_name"
     """
     The primary server name of the matched virtual host. This should be obtained via configuration. If no such configuration can be obtained, this attribute MUST NOT be set ( `net.host.name` should be used instead).
@@ -762,6 +799,14 @@ class SpanAttributes:
     """
 
 
+class OpentracingRefTypeValues(Enum):
+    CHILD_OF = "child_of"
+    """The parent Span depends on the child Span in some capacity."""
+
+    FOLLOWS_FROM = "follows_from"
+    """The parent Span does not depend in any way on the result of the child Span."""
+
+
 class DbSystemValues(Enum):
     OTHER_SQL = "other_sql"
     """Some other SQL database. Fallback only. See notes."""
@@ -993,13 +1038,16 @@ class FaasDocumentOperationValues(Enum):
 
 class HttpFlavorValues(Enum):
     HTTP_1_0 = "1.0"
-    """HTTP 1.0."""
+    """HTTP/1.0."""
 
     HTTP_1_1 = "1.1"
-    """HTTP 1.1."""
+    """HTTP/1.1."""
 
     HTTP_2_0 = "2.0"
-    """HTTP 2."""
+    """HTTP/2."""
+
+    HTTP_3_0 = "3.0"
+    """HTTP/3."""
 
     SPDY = "SPDY"
     """SPDY protocol."""
@@ -1115,6 +1163,20 @@ class FaasInvokedProviderValues(Enum):
     """Tencent Cloud."""
 
 
+class RpcSystemValues(Enum):
+    GRPC = "grpc"
+    """gRPC."""
+
+    JAVA_RMI = "java_rmi"
+    """Java RMI."""
+
+    DOTNET_WCF = "dotnet_wcf"
+    """.NET WCF."""
+
+    APACHE_DUBBO = "apache_dubbo"
+    """Apache Dubbo."""
+
+
 class MessagingOperationValues(Enum):
     RECEIVE = "receive"
     """receive."""
diff --git a/scripts/semconv/generate.sh b/scripts/semconv/generate.sh
index 48c46a78c6b..866832fe6b3 100755
--- a/scripts/semconv/generate.sh
+++ b/scripts/semconv/generate.sh
@@ -4,8 +4,8 @@ SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 ROOT_DIR="${SCRIPT_DIR}/../../"
 
 # freeze the spec version to make SemanticAttributes generation reproducible
-SPEC_VERSION=v1.8.0
-OTEL_SEMCONV_GEN_IMG_VERSION=0.9.0
+SPEC_VERSION=v1.11.0
+OTEL_SEMCONV_GEN_IMG_VERSION=0.11.1
 
 cd ${SCRIPT_DIR}