diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 4e5f06a1..8b99b52a 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -306,6 +306,55 @@ tracer_provider:
 
 [Schema validation](#schema-validation) project tooling enforces that types labeled `isSdkExtensionPlugin: true` are modeled consistently as described above.
 
+### Deprecating properties and types
+
+Properties and types that are no longer recommended for use should be deprecated rather than removed. Per the [versioning policy](VERSIONING.md), no existing type or type property may be deleted in a `MINOR` version. Deprecated properties and types must therefore be kept until at least the next `MAJOR` version.
+
+This guidance does not apply to [experimental features](VERSIONING.md#experimental-features), which are exempt from versioning policy guarantees and may be removed in `MINOR` versions without deprecation.
+
+To deprecate a property or type:
+
+1. Set [`deprecated: true`](https://json-schema.org/understanding-json-schema/reference/annotations) on the property or type in the YAML source.
+2. Update the `description` to include a bold `**Deprecated**` notice that:
+   * States the first `MINOR` version in which the deprecation appears and the earliest `MAJOR` version in which it may be removed (e.g. "as of v1.2.0, may be removed in v2.0.0").
+   * Explains why the property or type is deprecated, including a link to the relevant specification change.
+   * Advises that SDKs MAY continue to support the property for backwards compatibility and that new configurations SHOULD NOT use it.
+3. Add a CHANGELOG entry.
+
+For example, a deprecated property in YAML source:
+
+```yaml
+opencensus:
+  $ref: "#/$defs/OpenCensusMetricProducer"
+  deprecated: true
+  description: |
+    Configure metric producer to be opencensus.
+
+    **Deprecated** as of v1.2.0, may be removed in v2.0.0. The OpenCensus
+    compatibility specification it relies on was deprecated in
+    https://github.com/open-telemetry/opentelemetry-specification/pull/5138.
+    SDKs MAY continue to support this entry for backwards compatibility;
+    new configurations SHOULD NOT use it.
+  defaultBehavior: ignore
+```
+
+And a deprecated type:
+
+```yaml
+OpenCensusMetricProducer:
+  type:
+    - object
+    - "null"
+  additionalProperties: false
+  deprecated: true
+  description: |
+    **Deprecated** as of v1.2.0, may be removed in v2.0.0. The OpenCensus
+    compatibility specification it relies on was deprecated in
+    https://github.com/open-telemetry/opentelemetry-specification/pull/5138.
+    See also the
+    [OpenCensus sunset announcement](https://opentelemetry.io/blog/2023/sunsetting-opencensus/).
+```
+
 ## Project tooling
 
 This repository has a variety of tooling assisting with the development of the JSON schema and associated artifacts.
diff --git a/opentelemetry_configuration.json b/opentelemetry_configuration.json
index cd508d32..7a8e7975 100644
--- a/opentelemetry_configuration.json
+++ b/opentelemetry_configuration.json
@@ -1673,7 +1673,7 @@
         "opencensus": {
           "$ref": "#/$defs/OpenCensusMetricProducer",
           "deprecated": true,
-          "description": "Configure metric producer to be opencensus.\n\n**Deprecated** as of June 2026. The OpenCensus compatibility\nspecification it relies on was deprecated in\nhttps://github.com/open-telemetry/opentelemetry-specification/pull/5138.\nSDKs MAY continue to support this entry for backwards compatibility;\nnew configurations SHOULD NOT use it.\nIf omitted, ignore.\n"
+          "description": "Configure metric producer to be opencensus.\n\n**Deprecated** as of v1.2.0, may be removed in v2.0.0. The OpenCensus\ncompatibility specification it relies on was deprecated in\nhttps://github.com/open-telemetry/opentelemetry-specification/pull/5138.\nSDKs MAY continue to support this entry for backwards compatibility;\nnew configurations SHOULD NOT use it.\nIf omitted, ignore.\n"
         }
       }
     },
@@ -1721,7 +1721,7 @@
       ],
       "additionalProperties": false,
       "deprecated": true,
-      "description": "**Deprecated** as of June 2026. The OpenCensus compatibility specification\nit relies on was deprecated in\nhttps://github.com/open-telemetry/opentelemetry-specification/pull/5138.\nSee also the\n[OpenCensus sunset announcement](https://opentelemetry.io/blog/2023/sunsetting-opencensus/).\n"
+      "description": "**Deprecated** as of v1.2.0, may be removed in v2.0.0. The OpenCensus\ncompatibility specification it relies on was deprecated in\nhttps://github.com/open-telemetry/opentelemetry-specification/pull/5138.\nSee also the\n[OpenCensus sunset announcement](https://opentelemetry.io/blog/2023/sunsetting-opencensus/).\n"
     },
     "OtlpGrpcExporter": {
       "type": [
diff --git a/schema-docs.md b/schema-docs.md
index f6f1df6a..7ae940bf 100644
--- a/schema-docs.md
+++ b/schema-docs.md
@@ -1850,7 +1850,7 @@ No snippets.
 
 | Property | Type | Required? | Default and Null Behavior | Constraints | Description |
 |---|---|---|---|---|---|
-| `opencensus` | [`OpenCensusMetricProducer`](#opencensusmetricproducer) | `false` | If omitted, ignore. | No constraints. | Configure metric producer to be opencensus.<br><br>**Deprecated** as of June 2026. The OpenCensus compatibility<br>specification it relies on was deprecated in<br>https://github.com/open-telemetry/opentelemetry-specification/pull/5138.<br>SDKs MAY continue to support this entry for backwards compatibility;<br>new configurations SHOULD NOT use it.<br> |
+| `opencensus` | [`OpenCensusMetricProducer`](#opencensusmetricproducer) | `false` | If omitted, ignore. | No constraints. | Configure metric producer to be opencensus.<br><br>**Deprecated** as of v1.2.0, may be removed in v2.0.0. The OpenCensus<br>compatibility specification it relies on was deprecated in<br>https://github.com/open-telemetry/opentelemetry-specification/pull/5138.<br>SDKs MAY continue to support this entry for backwards compatibility;<br>new configurations SHOULD NOT use it.<br> |
 
 <details>
 <summary>Language support status</summary>
@@ -1891,7 +1891,7 @@ No snippets.
     "opencensus": {
       "$ref": "#/$defs/OpenCensusMetricProducer",
       "deprecated": true,
-      "description": "Configure metric producer to be opencensus.\n\n**Deprecated** as of June 2026. The OpenCensus compatibility\nspecification it relies on was deprecated in\nhttps://github.com/open-telemetry/opentelemetry-specification/pull/5138.\nSDKs MAY continue to support this entry for backwards compatibility;\nnew configurations SHOULD NOT use it.\nIf omitted, ignore.\n"
+      "description": "Configure metric producer to be opencensus.\n\n**Deprecated** as of v1.2.0, may be removed in v2.0.0. The OpenCensus\ncompatibility specification it relies on was deprecated in\nhttps://github.com/open-telemetry/opentelemetry-specification/pull/5138.\nSDKs MAY continue to support this entry for backwards compatibility;\nnew configurations SHOULD NOT use it.\nIf omitted, ignore.\n"
     }
   }
 }</pre>
@@ -2029,7 +2029,7 @@ No snippets.
   ],
   "additionalProperties": false,
   "deprecated": true,
-  "description": "**Deprecated** as of June 2026. The OpenCensus compatibility specification\nit relies on was deprecated in\nhttps://github.com/open-telemetry/opentelemetry-specification/pull/5138.\nSee also the\n[OpenCensus sunset announcement](https://opentelemetry.io/blog/2023/sunsetting-opencensus/).\n"
+  "description": "**Deprecated** as of v1.2.0, may be removed in v2.0.0. The OpenCensus\ncompatibility specification it relies on was deprecated in\nhttps://github.com/open-telemetry/opentelemetry-specification/pull/5138.\nSee also the\n[OpenCensus sunset announcement](https://opentelemetry.io/blog/2023/sunsetting-opencensus/).\n"
 }</pre>
 </details>
 
diff --git a/schema/meter_provider.yaml b/schema/meter_provider.yaml
index 8b87f2ea..cf01e490 100644
--- a/schema/meter_provider.yaml
+++ b/schema/meter_provider.yaml
@@ -236,8 +236,8 @@ $defs:
         description: |
           Configure metric producer to be opencensus.
 
-          **Deprecated** as of June 2026. The OpenCensus compatibility
-          specification it relies on was deprecated in
+          **Deprecated** as of v1.2.0, may be removed in v2.0.0. The OpenCensus
+          compatibility specification it relies on was deprecated in
           https://github.com/open-telemetry/opentelemetry-specification/pull/5138.
           SDKs MAY continue to support this entry for backwards compatibility;
           new configurations SHOULD NOT use it.
@@ -250,8 +250,8 @@ $defs:
     additionalProperties: false
     deprecated: true
     description: |
-      **Deprecated** as of June 2026. The OpenCensus compatibility specification
-      it relies on was deprecated in
+      **Deprecated** as of v1.2.0, may be removed in v2.0.0. The OpenCensus
+      compatibility specification it relies on was deprecated in
       https://github.com/open-telemetry/opentelemetry-specification/pull/5138.
       See also the
       [OpenCensus sunset announcement](https://opentelemetry.io/blog/2023/sunsetting-opencensus/).