GraphQL schema update (#60535)

Co-authored-by: github-merge-queue <118344674+github-merge-queue@users.noreply.github.com>

Author: docs-bot

src/graphql/data/fpt/changelog.json

@@ -1,4 +1,62 @@
 [
+  {
+    "schemaChanges": [
+      {
+        "title": "The GraphQL schema includes these changes:",
+        "changes": [
+          "<p>Type <code>IssueFieldAddedEvent</code> was added</p>",
+          "<p><code>IssueFieldAddedEvent</code> object implements <code>Node</code> interface</p>",
+          "<p>Field <code>actor</code> was added to object type <code>IssueFieldAddedEvent</code></p>",
+          "<p>Field <code>color</code> was added to object type <code>IssueFieldAddedEvent</code></p>",
+          "<p>Field <code>createdAt</code> was added to object type <code>IssueFieldAddedEvent</code></p>",
+          "<p>Field <code>id</code> was added to object type <code>IssueFieldAddedEvent</code></p>",
+          "<p>Field <code>issueField</code> was added to object type <code>IssueFieldAddedEvent</code></p>",
+          "<p>Field <code>value</code> was added to object type <code>IssueFieldAddedEvent</code></p>",
+          "<p>Type <code>IssueFieldChangedEvent</code> was added</p>",
+          "<p><code>IssueFieldChangedEvent</code> object implements <code>Node</code> interface</p>",
+          "<p>Field <code>actor</code> was added to object type <code>IssueFieldChangedEvent</code></p>",
+          "<p>Field <code>createdAt</code> was added to object type <code>IssueFieldChangedEvent</code></p>",
+          "<p>Field <code>id</code> was added to object type <code>IssueFieldChangedEvent</code></p>",
+          "<p>Field <code>issueField</code> was added to object type <code>IssueFieldChangedEvent</code></p>",
+          "<p>Field <code>newColor</code> was added to object type <code>IssueFieldChangedEvent</code></p>",
+          "<p>Field <code>newValue</code> was added to object type <code>IssueFieldChangedEvent</code></p>",
+          "<p>Field <code>previousColor</code> was added to object type <code>IssueFieldChangedEvent</code></p>",
+          "<p>Field <code>previousValue</code> was added to object type <code>IssueFieldChangedEvent</code></p>",
+          "<p>Type <code>IssueFieldRemovedEvent</code> was added</p>",
+          "<p><code>IssueFieldRemovedEvent</code> object implements <code>Node</code> interface</p>",
+          "<p>Field <code>actor</code> was added to object type <code>IssueFieldRemovedEvent</code></p>",
+          "<p>Field <code>createdAt</code> was added to object type <code>IssueFieldRemovedEvent</code></p>",
+          "<p>Field <code>id</code> was added to object type <code>IssueFieldRemovedEvent</code></p>",
+          "<p>Field <code>issueField</code> was added to object type <code>IssueFieldRemovedEvent</code></p>",
+          "<p>Type <code>IssueSearchType</code> was added</p>",
+          "<p>Enum value <code>HYBRID</code> was added to enum <code>IssueSearchType</code></p>",
+          "<p>Enum value <code>LEXICAL</code> was added to enum <code>IssueSearchType</code></p>",
+          "<p>Enum value <code>SEMANTIC</code> was added to enum <code>IssueSearchType</code></p>",
+          "<p>Type <code>LexicalFallbackReason</code> was added</p>",
+          "<p>Enum value 'NON_ISSUE_TARGET<code>was added to enum</code>LexicalFallbackReason'</p>",
+          "<p>Enum value 'NO_ACCESSIBLE_REPOS<code>was added to enum</code>LexicalFallbackReason'</p>",
+          "<p>Enum value 'NO_TEXT_TERMS<code>was added to enum</code>LexicalFallbackReason'</p>",
+          "<p>Enum value 'ONLY_NON_SEMANTIC_FIELDS_REQUESTED<code>was added to enum</code>LexicalFallbackReason'</p>",
+          "<p>Enum value 'OR_BOOLEAN_NOT_SUPPORTED<code>was added to enum</code>LexicalFallbackReason'</p>",
+          "<p>Enum value 'QUOTED_TEXT<code>was added to enum</code>LexicalFallbackReason'</p>",
+          "<p>Enum value 'SERVER_ERROR<code>was added to enum</code>LexicalFallbackReason'</p>",
+          "<p>Member <code>IssueFieldAddedEvent</code> was added to Union type <code>IssueTimelineItems</code></p>",
+          "<p>Member <code>IssueFieldChangedEvent</code> was added to Union type <code>IssueTimelineItems</code></p>",
+          "<p>Member <code>IssueFieldRemovedEvent</code> was added to Union type <code>IssueTimelineItems</code></p>",
+          "<p>Member <code>IssueFieldAddedEvent</code> was added to Union type <code>PullRequestTimelineItems</code></p>",
+          "<p>Member <code>IssueFieldChangedEvent</code> was added to Union type <code>PullRequestTimelineItems</code></p>",
+          "<p>Member <code>IssueFieldRemovedEvent</code> was added to Union type <code>PullRequestTimelineItems</code></p>",
+          "<p>Field <code>issueSearchType</code> was added to object type <code>SearchResultItemConnection</code></p>",
+          "<p>Field <code>lexicalFallbackReason</code> was added to object type <code>SearchResultItemConnection</code></p>",
+          "<p>Enum value 'ISSUE_HYBRID<code>was added to enum</code>SearchType'</p>",
+          "<p>Enum value 'ISSUE_SEMANTIC<code>was added to enum</code>SearchType'</p>"
+        ]
+      }
+    ],
+    "previewChanges": [],
+    "upcomingChanges": [],
+    "date": "2026-03-30"
+  },
   {
     "schemaChanges": [
       {

src/graphql/data/fpt/schema.docs.graphql

@@ -20539,6 +20539,86 @@ type IssueEdge {
   node: Issue
 }
 
+"""
+Represents a 'issue_field_added' event on a given issue.
+"""
+type IssueFieldAddedEvent implements Node {
+  """
+  Identifies the actor who performed the event.
+  """
+  actor: Actor
+
+  """
+  The color if it is a single-select field.
+  """
+  color: String
+
+  """
+  Identifies the date and time when the object was created.
+  """
+  createdAt: DateTime!
+
+  """
+  The Node ID of the IssueFieldAddedEvent object
+  """
+  id: ID!
+
+  """
+  The issue field added.
+  """
+  issueField: IssueFields
+
+  """
+  The value of the added field.
+  """
+  value: String
+}
+
+"""
+Represents a 'issue_field_changed' event on a given issue.
+"""
+type IssueFieldChangedEvent implements Node {
+  """
+  Identifies the actor who performed the event.
+  """
+  actor: Actor
+
+  """
+  Identifies the date and time when the object was created.
+  """
+  createdAt: DateTime!
+
+  """
+  The Node ID of the IssueFieldChangedEvent object
+  """
+  id: ID!
+
+  """
+  The issue field changed.
+  """
+  issueField: IssueFields
+
+  """
+  The new color if it is a single-select field.
+  """
+  newColor: String
+
+  """
+  The new value of the field.
+  """
+  newValue: String
+
+  """
+  The previous color if it was a single-select field.
+  """
+  previousColor: String
+
+  """
+  The previous value of the field.
+  """
+  previousValue: String
+}
+
 """
 Common fields across different issue field types
 """
@@ -20769,6 +20849,31 @@ enum IssueFieldOrderField {
   NAME
 }
 
+"""
+Represents a 'issue_field_removed' event on a given issue.
+"""
+type IssueFieldRemovedEvent implements Node {
+  """
+  Identifies the actor who performed the event.
+  """
+  actor: Actor
+
+  """
+  Identifies the date and time when the object was created.
+  """
+  createdAt: DateTime!
+
+  """
+  The Node ID of the IssueFieldRemovedEvent object
+  """
+  id: ID!
+
+  """
+  The issue field removed.
+  """
+  issueField: IssueFields
+}
+
 """
 Represents a single select issue field.
 """
@@ -21214,6 +21319,26 @@ enum IssueOrderField {
   UPDATED_AT
 }
 
+"""
+Type of issue search performed
+"""
+enum IssueSearchType {
+  """
+  Hybrid search combining lexical and semantic approaches
+  """
+  HYBRID
+
+  """
+  Lexical (keyword-based) search
+  """
+  LEXICAL
+
+  """
+  Semantic (meaning-based) search using embeddings
+  """
+  SEMANTIC
+}
+
 """
 The possible states of an issue.
 """
@@ -21431,6 +21556,9 @@ union IssueTimelineItems =
   | IssueComment
   | IssueCommentPinnedEvent
   | IssueCommentUnpinnedEvent
+  | IssueFieldAddedEvent
+  | IssueFieldChangedEvent
+  | IssueFieldRemovedEvent
   | IssueTypeAddedEvent
   | IssueTypeChangedEvent
   | IssueTypeRemovedEvent
@@ -22479,6 +22607,46 @@ enum LanguageOrderField {
   SIZE
 }
 
+"""
+Reason why a semantic or hybrid issue search fell back to lexical search
+"""
+enum LexicalFallbackReason {
+  """
+  Query targets non-issue types (e.g., pull requests)
+  """
+  NON_ISSUE_TARGET
+
+  """
+  Scoped query resolved to zero accessible repositories
+  """
+  NO_ACCESSIBLE_REPOS
+
+  """
+  Query has only qualifiers and no free text terms
+  """
+  NO_TEXT_TERMS
+
+  """
+  Query uses an in: qualifier targeting non-semantic fields
+  """
+  ONLY_NON_SEMANTIC_FIELDS_REQUESTED
+
+  """
+  Query contains OR operators (nested boolean qualifiers)
+  """
+  OR_BOOLEAN_NOT_SUPPORTED
+
+  """
+  Query contains quoted text requiring exact matches
+  """
+  QUOTED_TEXT
+
+  """
+  Embedding generation failed or timed out
+  """
+  SERVER_ERROR
+}
+
 """
 A repository's open source license
 """
@@ -44598,6 +44766,9 @@ union PullRequestTimelineItems =
   | IssueComment
   | IssueCommentPinnedEvent
   | IssueCommentUnpinnedEvent
+  | IssueFieldAddedEvent
+  | IssueFieldChangedEvent
+  | IssueFieldRemovedEvent
   | IssueTypeAddedEvent
   | IssueTypeChangedEvent
   | IssueTypeRemovedEvent
@@ -57244,6 +57415,16 @@ type SearchResultItemConnection {
   """
   issueCount: Int!
 
+  """
+  The type of search that was performed for issues (lexical, semantic, or hybrid)
+  """
+  issueSearchType: IssueSearchType
+
+  """
+  When a semantic or hybrid search falls back to lexical, the reasons why the fallback occurred.
+  """
+  lexicalFallbackReason: [LexicalFallbackReason!]
+
   """
   A list of nodes.
   """
@@ -57314,6 +57495,16 @@ enum SearchType {
   """
   ISSUE_ADVANCED
 
+  """
+  Returns results matching issues using hybrid (lexical + semantic) search.
+  """
+  ISSUE_HYBRID
+
+  """
+  Returns results matching issues using semantic search.
+  """
+  ISSUE_SEMANTIC
+
   """
   Returns results matching repositories.
   """