diff --git a/definitions/EiffelActivityTriggeredEvent/4.3.0.yml b/definitions/EiffelActivityTriggeredEvent/4.3.0.yml
index 8602bc6e..d3e95d6e 100644
--- a/definitions/EiffelActivityTriggeredEvent/4.3.0.yml
+++ b/definitions/EiffelActivityTriggeredEvent/4.3.0.yml
@@ -154,6 +154,7 @@ _links:
         - EiffelActivityTriggeredEvent
 _history:
   - version: 4.3.0
+    introduced_in: edition-orizaba
     changes: Add ORIGINAL_TRIGGER link (see [Issue 246](https://github.com/eiffel-community/eiffel/issues/246)).
   - version: 4.2.0
     introduced_in: edition-arica
diff --git a/definitions/EiffelArtifactDeployedEvent/0.1.0.yml b/definitions/EiffelArtifactDeployedEvent/0.1.0.yml
index 8c43bd42..4d45b292 100644
--- a/definitions/EiffelArtifactDeployedEvent/0.1.0.yml
+++ b/definitions/EiffelArtifactDeployedEvent/0.1.0.yml
@@ -113,6 +113,7 @@ _links:
         - EiffelFlowContextDefinedEvent
 _history:
   - version: 0.1.0
+    introduced_in: edition-orizaba
     changes: Initial version.
 _examples:
   - title: Simple example
diff --git a/definitions/EiffelConfidenceLevelModifiedEvent/3.3.0.yml b/definitions/EiffelConfidenceLevelModifiedEvent/3.3.0.yml
index 1f90940e..e1af5b6b 100644
--- a/definitions/EiffelConfidenceLevelModifiedEvent/3.3.0.yml
+++ b/definitions/EiffelConfidenceLevelModifiedEvent/3.3.0.yml
@@ -141,6 +141,7 @@ _links:
         - EiffelConfidenceLevelModifiedEvent
 _history:
   - version: 3.3.0
+    introduced_in: edition-orizaba
     changes: Add EiffelArtifactDeployedEvent as legal target type for
       SUBJECT link (see
       [Issue 239](https://github.com/eiffel-community/eiffel/issues/239)).
diff --git a/definitions/EiffelIssueVerifiedEvent/4.3.0.yml b/definitions/EiffelIssueVerifiedEvent/4.3.0.yml
index a0aece40..ab3a8913 100644
--- a/definitions/EiffelIssueVerifiedEvent/4.3.0.yml
+++ b/definitions/EiffelIssueVerifiedEvent/4.3.0.yml
@@ -130,6 +130,7 @@ _links:
         - EiffelTestSuiteFinishedEvent
 _history:
   - version: 4.3.0
+    introduced_in: edition-orizaba
     changes: Add artifact deployed event as legal IUT target (see [Issue 239](https://github.com/eiffel-community/eiffel/issues/239)).
   - version: 4.2.0
     introduced_in: edition-arica
diff --git a/definitions/EiffelTestCaseTriggeredEvent/3.3.0.yml b/definitions/EiffelTestCaseTriggeredEvent/3.3.0.yml
index 06a09cd5..bb8d76f1 100644
--- a/definitions/EiffelTestCaseTriggeredEvent/3.3.0.yml
+++ b/definitions/EiffelTestCaseTriggeredEvent/3.3.0.yml
@@ -189,6 +189,7 @@ _links:
         - EiffelTestCaseTriggeredEvent
 _history:
   - version: 3.3.0
+    introduced_in: edition-orizaba
     changes: Add SCS and SCC as legal target for IUT in TCT (see [Issue 317](https://github.com/eiffel-community/eiffel/issues/317)).
   - version: 3.2.0
     introduced_in: edition-arica
diff --git a/definitions/EiffelTestCaseTriggeredEvent/3.4.0.yml b/definitions/EiffelTestCaseTriggeredEvent/3.4.0.yml
index 70c8135a..c7a1bf80 100644
--- a/definitions/EiffelTestCaseTriggeredEvent/3.4.0.yml
+++ b/definitions/EiffelTestCaseTriggeredEvent/3.4.0.yml
@@ -190,8 +190,10 @@ _links:
         - EiffelTestCaseTriggeredEvent
 _history:
   - version: 3.4.0
+    introduced_in: edition-orizaba
     changes: Add artifact deployed event as legal IUT target (see [Issue 239](https://github.com/eiffel-community/eiffel/issues/239)).
   - version: 3.3.0
+    introduced_in: edition-orizaba
     changes: Add SCS and SCC as legal target for IUT in TCT (see [Issue 317](https://github.com/eiffel-community/eiffel/issues/317)).
   - version: 3.2.0
     introduced_in: edition-arica
diff --git a/definitions/EiffelTestCaseTriggeredEvent/3.5.0.yml b/definitions/EiffelTestCaseTriggeredEvent/3.5.0.yml
index 0a8d05d2..3f74f201 100644
--- a/definitions/EiffelTestCaseTriggeredEvent/3.5.0.yml
+++ b/definitions/EiffelTestCaseTriggeredEvent/3.5.0.yml
@@ -202,10 +202,13 @@ _links:
         - EiffelTestCaseTriggeredEvent
 _history:
   - version: 3.5.0
+    introduced_in: edition-orizaba
     changes: Add ORIGINAL_TRIGGER link (see [Issue 246](https://github.com/eiffel-community/eiffel/issues/246)).
   - version: 3.4.0
+    introduced_in: edition-orizaba
     changes: Add artifact deployed event as legal IUT target (see [Issue 239](https://github.com/eiffel-community/eiffel/issues/239)).
   - version: 3.3.0
+    introduced_in: edition-orizaba
     changes: Add SCS and SCC as legal target for IUT in TCT (see [Issue 317](https://github.com/eiffel-community/eiffel/issues/317)).
   - version: 3.2.0
     introduced_in: edition-arica
diff --git a/definitions/EiffelTestSuiteStartedEvent/3.4.0.yml b/definitions/EiffelTestSuiteStartedEvent/3.4.0.yml
index dce19261..149369bc 100644
--- a/definitions/EiffelTestSuiteStartedEvent/3.4.0.yml
+++ b/definitions/EiffelTestSuiteStartedEvent/3.4.0.yml
@@ -183,6 +183,7 @@ _links:
         - EiffelTestExecutionRecipeCollectionCreatedEvent
 _history:
   - version: 3.4.0
+    introduced_in: edition-orizaba
     changes: Add ORIGINAL_TRIGGER link (see [Issue 246](https://github.com/eiffel-community/eiffel/issues/246)).
   - version: 3.3.0
     introduced_in: edition-arica
diff --git a/eiffel-syntax-and-usage/versioning.md b/eiffel-syntax-and-usage/versioning.md
index 9ec47bdf..c1856c9e 100644
--- a/eiffel-syntax-and-usage/versioning.md
+++ b/eiffel-syntax-and-usage/versioning.md
@@ -30,7 +30,7 @@ That being said, to facilitate compatibility and consistency, the Eiffel protoco
 | Budapest  | _Reserved for future use._  | |
 | Ruhnu  | _Reserved for future use._  | |
 | Santiago  | _Reserved for future use._  | |
-| Orizaba  | _Reserved for future use._  | |
+| Orizaba  | [edition-orizaba](../../../tree/edition-orizaba)  | Add ORIGINAL_TRIGGER link to ActT/TCT/TSS ([Issue 246](https://github.com/eiffel-community/eiffel/issues/246)), add ArtD event ([Issue 239](https://github.com/eiffel-community/eiffel/issues/239)), TCT can now link directly to SCC or SCS without using an intermediary CD  ([Issue 317](https://github.com/eiffel-community/eiffel/issues/317)). |
 | Arica  | [edition-arica](../../../tree/edition-arica)  | Added optional file digest member to ArtC ([Issue 290](https://github.com/eiffel-community/eiffel/issues/290)), added meta.schemaUri member ([Issue 280](https://github.com/eiffel-community/eiffel/issues/280)), added PRECURSOR link type to ActT, TCT, and TSS ([Issue 227](https://github.com/eiffel-community/eiffel/issues/227)), added testCase.version member to TERCC ([Issue 288](https://github.com/eiffel-community/eiffel/issues/288)). |
 | Lyon  | [edition-lyon](../../../tree/edition-lyon)  | Added domainId member to links ([Issue 233](https://github.com/eiffel-community/eiffel/issues/233)), added {mediaType,tags} to data.{liveLogs,persistentLogs} of various event types ([Issue 166](https://github.com/eiffel-community/eiffel/issues/166)), added RUNTIME_ENVIRONMENT as link type for ED ([Issue 258](https://github.com/eiffel-community/eiffel/issues/258)), and added missing validation pattern for links.target of TERCC ([Issue 271](https://github.com/eiffel-community/eiffel/issues/271)). |
 | Paris  | [edition-paris](../../../tree/edition-paris)  | Minor backwards-compatible changes to CD and ArtP (Issues [218](https://github.com/eiffel-community/eiffel/issues/218) and [248](https://github.com/eiffel-community/eiffel/issues/248)). |
diff --git a/eiffel-vocabulary/EiffelActivityTriggeredEvent.md b/eiffel-vocabulary/EiffelActivityTriggeredEvent.md
index 90cd92ef..4537bc53 100644
--- a/eiffel-vocabulary/EiffelActivityTriggeredEvent.md
+++ b/eiffel-vocabulary/EiffelActivityTriggeredEvent.md
@@ -216,7 +216,7 @@ __Description:__ A URI pointing at a location from where the schema used when cr
 
 | Version | Introduced in | Changes |
 | ------- | ------------- | ------- |
-| 4.3.0 | Not yet released in an edition | Add ORIGINAL_TRIGGER link (see [Issue 246](https://github.com/eiffel-community/eiffel/issues/246)). |
+| 4.3.0 | [edition-orizaba](../../../tree/edition-orizaba) | Add ORIGINAL_TRIGGER link (see [Issue 246](https://github.com/eiffel-community/eiffel/issues/246)). |
 | 4.2.0 | [edition-arica](../../../tree/edition-arica) | Add schema URL to the meta object (see [Issue 280](https://github.com/eiffel-community/eiffel/issues/280)). |
 | 4.1.0 | [edition-lyon](../../../tree/edition-lyon) | Add links.domainId member (see [Issue 233](https://github.com/eiffel-community/eiffel/issues/233)). |
 | 4.0.0 | [edition-agen-1](../../../tree/edition-agen-1) | Bug fix in schema file (see [Issue 205](https://github.com/eiffel-community/eiffel/issues/205)) |
diff --git a/eiffel-vocabulary/EiffelArtifactDeployedEvent.md b/eiffel-vocabulary/EiffelArtifactDeployedEvent.md
index 4ea66d46..94779b05 100644
--- a/eiffel-vocabulary/EiffelArtifactDeployedEvent.md
+++ b/eiffel-vocabulary/EiffelArtifactDeployedEvent.md
@@ -195,7 +195,7 @@ __Description:__ A URI pointing at a location from where the schema used when cr
 
 | Version | Introduced in | Changes |
 | ------- | ------------- | ------- |
-| 0.1.0 | Not yet released in an edition | Initial version. |
+| 0.1.0 | [edition-orizaba](../../../tree/edition-orizaba) | Initial version. |
 
 
 ## Examples
diff --git a/eiffel-vocabulary/EiffelConfidenceLevelModifiedEvent.md b/eiffel-vocabulary/EiffelConfidenceLevelModifiedEvent.md
index 0bc2df6b..691a8977 100644
--- a/eiffel-vocabulary/EiffelConfidenceLevelModifiedEvent.md
+++ b/eiffel-vocabulary/EiffelConfidenceLevelModifiedEvent.md
@@ -218,7 +218,7 @@ __Description:__ A URI pointing at a location from where the schema used when cr
 
 | Version | Introduced in | Changes |
 | ------- | ------------- | ------- |
-| 3.3.0 | Not yet released in an edition | Add EiffelArtifactDeployedEvent as legal target type for SUBJECT link (see [Issue 239](https://github.com/eiffel-community/eiffel/issues/239)). |
+| 3.3.0 | [edition-orizaba](../../../tree/edition-orizaba) | Add EiffelArtifactDeployedEvent as legal target type for SUBJECT link (see [Issue 239](https://github.com/eiffel-community/eiffel/issues/239)). |
 | 3.2.0 | [edition-arica](../../../tree/edition-arica) | Add schema URL to the meta object (see [Issue 280](https://github.com/eiffel-community/eiffel/issues/280)). |
 | 3.1.0 | [edition-lyon](../../../tree/edition-lyon) | Add links.domainId member (see [Issue 233](https://github.com/eiffel-community/eiffel/issues/233)). |
 | 3.0.0 | [edition-agen](../../../tree/edition-agen) | Improved information integrity protection (see [Issue 185](https://github.com/eiffel-community/eiffel/issues/185)). |
diff --git a/eiffel-vocabulary/EiffelIssueVerifiedEvent.md b/eiffel-vocabulary/EiffelIssueVerifiedEvent.md
index d8a7e6d4..b5ee09a6 100644
--- a/eiffel-vocabulary/EiffelIssueVerifiedEvent.md
+++ b/eiffel-vocabulary/EiffelIssueVerifiedEvent.md
@@ -203,7 +203,7 @@ __Description:__ A URI pointing at a location from where the schema used when cr
 
 | Version | Introduced in | Changes |
 | ------- | ------------- | ------- |
-| 4.3.0 | Not yet released in an edition | Add artifact deployed event as legal IUT target (see [Issue 239](https://github.com/eiffel-community/eiffel/issues/239)). |
+| 4.3.0 | [edition-orizaba](../../../tree/edition-orizaba) | Add artifact deployed event as legal IUT target (see [Issue 239](https://github.com/eiffel-community/eiffel/issues/239)). |
 | 4.2.0 | [edition-arica](../../../tree/edition-arica) | Add schema URL to the meta object (see [Issue 280](https://github.com/eiffel-community/eiffel/issues/280)). |
 | 4.1.0 | [edition-lyon](../../../tree/edition-lyon) | Add links.domainId member (see [Issue 233](https://github.com/eiffel-community/eiffel/issues/233)). |
 | 4.0.0 | [edition-agen](../../../tree/edition-agen) | Improved information integrity protection (see [Issue 185](https://github.com/eiffel-community/eiffel/issues/185)). |
diff --git a/eiffel-vocabulary/EiffelTestCaseTriggeredEvent.md b/eiffel-vocabulary/EiffelTestCaseTriggeredEvent.md
index f1ca0fe5..e178f102 100644
--- a/eiffel-vocabulary/EiffelTestCaseTriggeredEvent.md
+++ b/eiffel-vocabulary/EiffelTestCaseTriggeredEvent.md
@@ -257,9 +257,9 @@ __Description:__ A URI pointing at a location from where the schema used when cr
 
 | Version | Introduced in | Changes |
 | ------- | ------------- | ------- |
-| 3.5.0 | Not yet released in an edition | Add ORIGINAL_TRIGGER link (see [Issue 246](https://github.com/eiffel-community/eiffel/issues/246)). |
-| 3.4.0 | Not yet released in an edition | Add artifact deployed event as legal IUT target (see [Issue 239](https://github.com/eiffel-community/eiffel/issues/239)). |
-| 3.3.0 | Not yet released in an edition | Add SCS and SCC as legal target for IUT in TCT (see [Issue 317](https://github.com/eiffel-community/eiffel/issues/317)). |
+| 3.5.0 | [edition-orizaba](../../../tree/edition-orizaba) | Add ORIGINAL_TRIGGER link (see [Issue 246](https://github.com/eiffel-community/eiffel/issues/246)). |
+| 3.4.0 | [edition-orizaba](../../../tree/edition-orizaba) | Add artifact deployed event as legal IUT target (see [Issue 239](https://github.com/eiffel-community/eiffel/issues/239)). |
+| 3.3.0 | [edition-orizaba](../../../tree/edition-orizaba) | Add SCS and SCC as legal target for IUT in TCT (see [Issue 317](https://github.com/eiffel-community/eiffel/issues/317)). |
 | 3.2.0 | [edition-arica](../../../tree/edition-arica) | Add schema URL to the meta object (see [Issue 280](https://github.com/eiffel-community/eiffel/issues/280)). |
 | 3.1.0 | [edition-lyon](../../../tree/edition-lyon) | Add links.domainId member (see [Issue 233](https://github.com/eiffel-community/eiffel/issues/233)). |
 | 3.0.0 | [edition-agen](../../../tree/edition-agen) | Improved information integrity protection (see [Issue 185](https://github.com/eiffel-community/eiffel/issues/185)). |
diff --git a/eiffel-vocabulary/EiffelTestSuiteStartedEvent.md b/eiffel-vocabulary/EiffelTestSuiteStartedEvent.md
index 8b29eeef..2ee0cbec 100644
--- a/eiffel-vocabulary/EiffelTestSuiteStartedEvent.md
+++ b/eiffel-vocabulary/EiffelTestSuiteStartedEvent.md
@@ -226,7 +226,7 @@ __Description:__ A URI pointing at a location from where the schema used when cr
 
 | Version | Introduced in | Changes |
 | ------- | ------------- | ------- |
-| 3.4.0 | Not yet released in an edition | Add ORIGINAL_TRIGGER link (see [Issue 246](https://github.com/eiffel-community/eiffel/issues/246)). |
+| 3.4.0 | [edition-orizaba](../../../tree/edition-orizaba) | Add ORIGINAL_TRIGGER link (see [Issue 246](https://github.com/eiffel-community/eiffel/issues/246)). |
 | 3.3.0 | [edition-arica](../../../tree/edition-arica) | Add schema URL to the meta object (see [Issue 280](https://github.com/eiffel-community/eiffel/issues/280)). |
 | 3.2.0 | [edition-lyon](../../../tree/edition-lyon) | Add links.domainId member (see [Issue 233](https://github.com/eiffel-community/eiffel/issues/233)). |
 | 3.1.0 | [edition-lyon](../../../tree/edition-lyon) | Add `data.liveLogs.{mediaType,tags}`. |
diff --git a/event_manifest.yml b/event_manifest.yml
index 4758a358..04e780f7 100644
--- a/event_manifest.yml
+++ b/event_manifest.yml
@@ -186,3 +186,31 @@
       EiffelTestExecutionRecipeCollectionCreatedEvent: 4.3.0
       EiffelTestSuiteFinishedEvent: 3.3.0
       EiffelTestSuiteStartedEvent: 3.3.0
+  - name: Orizaba
+    tag: edition-orizaba
+    release_date: '2023-06-30'
+    events:
+      EiffelActivityCanceledEvent: 3.2.0
+      EiffelActivityFinishedEvent: 3.3.0
+      EiffelActivityStartedEvent: 4.3.0
+      EiffelActivityTriggeredEvent: 4.3.0
+      EiffelAnnouncementPublishedEvent: 3.2.0
+      EiffelArtifactCreatedEvent: 3.3.0
+      EiffelArtifactDeployedEvent: 0.1.0
+      EiffelArtifactPublishedEvent: 3.3.0
+      EiffelArtifactReusedEvent: 3.2.0
+      EiffelCompositionDefinedEvent: 3.3.0
+      EiffelConfidenceLevelModifiedEvent: 3.3.0
+      EiffelEnvironmentDefinedEvent: 3.3.0
+      EiffelFlowContextDefinedEvent: 3.2.0
+      EiffelIssueDefinedEvent: 3.2.0
+      EiffelIssueVerifiedEvent: 4.3.0
+      EiffelSourceChangeCreatedEvent: 4.2.0
+      EiffelSourceChangeSubmittedEvent: 3.2.0
+      EiffelTestCaseCanceledEvent: 3.2.0
+      EiffelTestCaseFinishedEvent: 3.3.0
+      EiffelTestCaseStartedEvent: 3.3.0
+      EiffelTestCaseTriggeredEvent: 3.5.0
+      EiffelTestExecutionRecipeCollectionCreatedEvent: 4.3.0
+      EiffelTestSuiteFinishedEvent: 3.3.0
+      EiffelTestSuiteStartedEvent: 3.4.0
diff --git a/generate_manifest.py b/generate_manifest.py
index 04b8275e..bd1e0340 100755
--- a/generate_manifest.py
+++ b/generate_manifest.py
@@ -31,6 +31,7 @@
     ("Arica", "edition-arica", "2022-11-18"),
     ("Bordeaux", "edition-bordeaux", "2017-04-12"),
     ("Lyon", "edition-lyon", "2021-10-12"),
+    ("Orizaba", "edition-orizaba", "2023-06-30"),
     ("Paris", "edition-paris", "2021-02-16"),
     ("Toulouse", "edition-toulouse", "2018-02-20"),
 ]