diff --git a/.chloggen/CHANGELOG.tmpl b/.chloggen/CHANGELOG.tmpl
new file mode 100644
index 0000000000..416959e205
--- /dev/null
+++ b/.chloggen/CHANGELOG.tmpl
@@ -0,0 +1,72 @@
+{{/*
+Based on the default template:
+https://github.com/open-telemetry/opentelemetry-go-build-tools/blob/v0.15.0/chloggen/internal/chlog/summary.tmpl
+*/}}
+{{- define "entry" -}}
+- `{{ .Component }}`: {{ .Note }} (
+{{- range $i, $issue := .Issues }}
+{{- if $i }}, {{ end -}}
+[#{{ $issue }}](https://github.com/open-telemetry/semantic-conventions/issues/{{ $issue }})
+{{- end -}}
+)
+
+{{- if .SubText }}
+{{ .SubText | indent 2 }}
+{{- end }}
+{{- end }}
+## {{ .Version }}
+
+{{- if .BreakingChanges }}
+
+### 🛑 Breaking changes 🛑
+
+{{- range $i, $change := .BreakingChanges }}
+{{- if eq $i 0}}
+{{end}}
+{{ template "entry" $change }}
+{{- end }}
+{{- end }}
+
+{{- if .Deprecations }}
+
+### 🚩 Deprecations 🚩
+
+{{- range $i, $change := .Deprecations }}
+{{- if eq $i 0}}
+{{end}}
+{{ template "entry" $change }}
+{{- end }}
+{{- end }}
+
+{{- if .NewComponents }}
+
+### 🚀 New components 🚀
+
+{{- range $i, $change := .NewComponents }}
+{{- if eq $i 0}}
+{{end}}
+{{ template "entry" $change }}
+{{- end }}
+{{- end }}
+
+{{- if .Enhancements }}
+
+### 💡 Enhancements 💡
+
+{{- range $i, $change := .Enhancements }}
+{{- if eq $i 0}}
+{{end}}
+{{ template "entry" $change }}
+{{- end }}
+{{- end }}
+
+{{- if .BugFixes }}
+
+### 🧰 Bug fixes 🧰
+
+{{- range $i, $change := .BugFixes }}
+{{- if eq $i 0}}
+{{end}}
+{{ template "entry" $change }}
+{{- end }}
+{{- end }}
diff --git a/.chloggen/config.yaml b/.chloggen/config.yaml
index 411f32d3a5..f600745253 100644
--- a/.chloggen/config.yaml
+++ b/.chloggen/config.yaml
@@ -22,3 +22,6 @@ change_logs:
 # If 'change_logs' is specified in this file, and no value is specified for 'default_change_logs',
 # then 'change_logs' MUST be specified in every entry file.
 default_change_logs: [user]
+
+# Custom template for the changelog that include links for the issue/PRs
+summary_template: .chloggen/CHANGELOG.tmpl
diff --git a/policies/attribute_name_collisions.rego b/policies/attribute_name_collisions.rego
index c52f0267fc..0aa7bb506e 100644
--- a/policies/attribute_name_collisions.rego
+++ b/policies/attribute_name_collisions.rego
@@ -6,7 +6,7 @@ import rego.v1
 attribute_names := { obj |
     group := input.groups[_];
     attr := group.attributes[_];
-    obj := { "name": attr.name, "const_name": to_const_name(attr.name), "namespace_prefix": to_namespace_prefix(attr.name) }
+    obj := { "name": attr.name, "const_name": to_const_name(attr.name), "namespace_prefix": to_namespace_prefix(attr.name), "deprecated": is_property_set(attr, "deprecated") }
 }
 
 # check that attribute constant names do not collide
@@ -29,11 +29,17 @@ deny contains attr_registry_collision(description, name) if {
 # check that attribute names do not collide with namespaces
 deny contains attr_registry_collision(description, name) if {
     some i
+
+    # ignore deprecated attributes
+    not attribute_names[i].deprecated
+
     name := attribute_names[i].name
     prefix := attribute_names[i].namespace_prefix
-    not excluded_namespace_collisions[name]
+
     collisions := [other.name |
         other := attribute_names[_]
+        not other.deprecated
+
         other.name != name
         startswith(other.name, prefix)
     ]
@@ -72,7 +78,11 @@ to_const_name(name) = const_name if {
     const_name := replace(name, ".", "_")
 }
 
-# These lists contain exceptions for existing collisions that were introduced unintentionally.
+is_property_set(obj, property) = true if {
+    obj[property] != null
+} else = false
+
+# This list contains exceptions for existing collisions that were introduced unintentionally.
 # We'll have a way to specify how collision resolution happens in the schema -
 # see phase 2 in https://github.com/open-telemetry/semantic-conventions/issues/1118#issuecomment-2173803006
 # For now we'll exclude existing collisions from the checks.
@@ -80,5 +90,3 @@ to_const_name(name) = const_name if {
 
 # DO NOT ADD ATTRIBUTES TO THIS LIST
 excluded_const_collisions := {"messaging.client_id"}
-# DO NOT ADD ATTRIBUTES TO THIS LIST
-excluded_namespace_collisions := {"messaging.operation", "db.operation", "deployment.environment"}
diff --git a/policies/compatibility.rego b/policies/compatibility.rego
index 31b391fe48..f8483ca4b3 100644
--- a/policies/compatibility.rego
+++ b/policies/compatibility.rego
@@ -48,7 +48,7 @@ baseline_events := [ g |
 ]
 registry_events := [g |
     some g in data.semconv.groups
-    g.type == "events"
+    g.type == "event"
 ]
 registry_event_names := { g.name | some g in registry_events }
 
@@ -236,11 +236,11 @@ deny contains back_comp_violation(description, group_id, attr.name) if {
 # Rule: Detect Removed Metrics
 #
 # This rule checks for stable metrics that existed in the baseline registry
-# but are no longer present in the current registry. Removing attributes
+# but are no longer present in the current registry. Removing metrics
 # is considered a backward compatibility violation.
 #
-# In other words, we do not allow the removal of an attribute once added
-# to the registry. It must exist SOMEWHERE in a group, but may be deprecated.
+# In other words, we do not allow the removal of an metrics once added
+# to semantic conventions. They, however, may be deprecated.
 deny contains back_comp_violation(description, group_id, "") if {
     # Find data we need to enforce
     some metric in baseline_metrics
@@ -366,7 +366,7 @@ deny contains back_comp_violation(description, group_id, "") if {
 # is considered a backward compatibility violation.
 #
 # In other words, we do not allow the removal of a resource once added
-# to the registry. It must exist SOMEWHERE, but may be deprecated.
+# to semantic conventions. They, however, may be deprecated.
 deny contains back_comp_violation(description, group_id, "") if {
     # Find data we need to enforce
     some resource in baseline_resources
@@ -432,11 +432,10 @@ deny contains back_comp_violation(description, group_id, "") if {
 # is considered a backward compatibility violation.
 #
 # In other words, we do not allow the removal of a events once added
-# to the registry. It must exist SOMEWHERE, but may be deprecated.
+# to semantic conventions. They, however, may be deprecated.
 deny contains back_comp_violation(description, group_id, "") if {
     # Find data we need to enforce
     some event in baseline_events
-    event.stability == "stable" # remove after https://github.com/open-telemetry/semantic-conventions/pull/1512 is merged
     # Enforce the policy
     not registry_event_names[event.name]
 
diff --git a/policies_test/attribute_name_collisions_test.rego b/policies_test/attribute_name_collisions_test.rego
index b86e79fece..2d09beb7c4 100644
--- a/policies_test/attribute_name_collisions_test.rego
+++ b/policies_test/attribute_name_collisions_test.rego
@@ -17,3 +17,15 @@ test_fails_on_namespace_collision if {
     ]}
     count(deny) == 1 with input as collision
 }
+
+test_does_not_fail_on_deprecated_namespace_collision if {
+    collision := {"groups": [
+        {"id": "test1", "attributes": [{"name": "test.namespace.id"}]},
+        {"id": "test2", "attributes": [{"name": "test.namespace", "deprecated": "replaced by foo.bar.baz"}]},
+
+        {"id": "test3", "attributes": [{"name": "another_test.namespace.id", "deprecated": "replaced by another_test.namespace"}]},
+        {"id": "test4", "attributes": [{"name": "another_test.namespace"}]},
+    ]}
+    count(deny) == 0 with input as collision
+}
+
diff --git a/policies_test/compatibility_test.rego b/policies_test/compatibility_test.rego
index 92ee2f2933..5976e02c54 100644
--- a/policies_test/compatibility_test.rego
+++ b/policies_test/compatibility_test.rego
@@ -679,6 +679,30 @@ test_removed_resources if {
     }
 }
 
+# Check that events cannot be removed.
+test_removed_events if {
+	count(deny) > 0 with data.semconv as {
+            "baseline_groups": [{
+                "id": "event.test.missing",
+                "type": "event",
+                "name": "test.missing"
+            }],
+    }
+    count(deny) == 0 with data.semconv as {
+            "baseline_groups": [{
+                "id": "event.test.deprecated",
+                "type": "event",
+                "name": "test.deprecated",
+            }],
+            "groups": [{
+                "id": "event.test.deprecated",
+                "type": "event",
+                "name": "test.deprecated",
+                "deprecated": "use `test` instead",
+            }]
+    }
+}
+
 # Check that Stable resources cannot become unstable
 test_resource_stability_change if {
 	count(deny) > 0 with data.semconv as {