diff --git a/.changeset/brave-modules-skip.md b/.changeset/brave-modules-skip.md
deleted file mode 100644
index 9912f1cc1f8..00000000000
--- a/.changeset/brave-modules-skip.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'@graphql-codegen/graphql-modules-preset': patch
----
-
-Skip sources without a `location` when grouping sources by module, instead of throwing from `path.normalize`, and skip sources without a `document` AST when building each module's document. Generated output from the CLI is unchanged.
diff --git a/.changeset/calm-owls-guard.md b/.changeset/calm-owls-guard.md
deleted file mode 100644
index 5b06c7777c5..00000000000
--- a/.changeset/calm-owls-guard.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'@graphql-codegen/core': patch
----
-
-Skip documents without a `document` AST when validating documents against the schema, instead of passing `undefined` to validation. Generated output from the CLI is unchanged.
diff --git a/.changeset/quiet-foxes-skip.md b/.changeset/quiet-foxes-skip.md
deleted file mode 100644
index c8854ce8573..00000000000
--- a/.changeset/quiet-foxes-skip.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'@graphql-codegen/typescript-document-nodes': patch
----
-
-Skip documents without a `document` AST instead of throwing from `concatAST` when the plugin is called directly with one. Generated output from the CLI is unchanged.
diff --git a/.changeset/quiet-pens-return.md b/.changeset/quiet-pens-return.md
deleted file mode 100644
index a938ccaecca..00000000000
--- a/.changeset/quiet-pens-return.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'@graphql-codegen/add': patch
----
-
-The plugin output's `content` is now an empty string (`''`) instead of `null` when `placement` is `prepend` or `append`. This matches the `ComplexPluginOutput` type (`content: string`). Code that calls the plugin directly and checks `content === null` should check for an empty string instead. Generated files are unchanged.
diff --git a/.changeset/tidy-tags-guard.md b/.changeset/tidy-tags-guard.md
deleted file mode 100644
index be3832d79b7..00000000000
--- a/.changeset/tidy-tags-guard.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'@graphql-codegen/testing': patch
----
-
-Make `validateTs`/`compileTs` type-check under `strict: true`: fall back to the compiler host's script target when the passed options have no `target`, and only compute a diagnostic's line/column when it has a `start` position. Adds `@types/common-tags` as a devDependency.
diff --git a/.changeset/tidy-typed-nodes.md b/.changeset/tidy-typed-nodes.md
deleted file mode 100644
index e079ae76f70..00000000000
--- a/.changeset/tidy-typed-nodes.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'@graphql-codegen/typed-document-node': patch
----
-
-Skip documents without a `document` AST instead of throwing from `concatAST` when the plugin is called directly with one, and don't add an empty import when `documentNodeImport` has no module. Generated output from the CLI is unchanged.
diff --git a/.changeset/typed-old-visit.md b/.changeset/typed-old-visit.md
deleted file mode 100644
index 7982132b9a5..00000000000
--- a/.changeset/typed-old-visit.md
+++ /dev/null
@@ -1,7 +0,0 @@
----
-'@graphql-codegen/plugin-helpers': minor
----
-
-Type `oldVisit`'s return value instead of returning `any`. For a `DocumentNode`, the result is now `OldVisitDocumentResult`, whose `definitions` are `unknown[]` because leave visitors can replace each definition with any value (usually a string), and definitions without a leave visitor stay as AST nodes. When a `Document` leave visitor returns its own value, pass its type as `oldVisit<TResult>(...)`. For other roots, the result is `unknown` unless `TResult` is given.
-
-Code that used the result as `any`, for example `const definitions: string[] = result.definitions`, now needs to filter for strings, cast (`result.definitions as string[]`), or pass `oldVisit<any>(...)`. Runtime behavior and generated output are unchanged.
diff --git a/.changeset/wide-config-values.md b/.changeset/wide-config-values.md
deleted file mode 100644
index 6c011d95371..00000000000
--- a/.changeset/wide-config-values.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'@graphql-codegen/visitor-plugin-common': patch
----
-
-Type `getConfigValue`'s `value` parameter as `T | null | undefined`, so the result is non-nullable when a non-nullable default is given.
diff --git a/packages/graphql-codegen-core/CHANGELOG.md b/packages/graphql-codegen-core/CHANGELOG.md
index 270e716f5bf..f0bd604c89e 100644
--- a/packages/graphql-codegen-core/CHANGELOG.md
+++ b/packages/graphql-codegen-core/CHANGELOG.md
@@ -1,5 +1,19 @@
 # @graphql-codegen/core
 
+## 6.2.1
+
+### Patch Changes
+
+- [#10991](https://github.com/dotansimha/graphql-code-generator/pull/10991)
+  [`dc70125`](https://github.com/dotansimha/graphql-code-generator/commit/dc7012530290b1b7fa8ad1b017b66e18a6db6078)
+  Thanks [@eddeee888](https://github.com/eddeee888)! - Skip documents without a `document` AST when
+  validating documents against the schema, instead of passing `undefined` to validation. Generated
+  output from the CLI is unchanged.
+
+- Updated dependencies
+  [[`1d1153b`](https://github.com/dotansimha/graphql-code-generator/commit/1d1153b3b161fa82057d586bb5fe524e1e17efe3)]:
+  - @graphql-codegen/plugin-helpers@7.4.0
+
 ## 6.2.0
 
 ### Minor Changes
diff --git a/packages/graphql-codegen-core/package.json b/packages/graphql-codegen-core/package.json
index af48820e85e..3e4bcd566f2 100644
--- a/packages/graphql-codegen-core/package.json
+++ b/packages/graphql-codegen-core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@graphql-codegen/core",
-  "version": "6.2.0",
+  "version": "6.2.1",
   "type": "module",
   "repository": {
     "type": "git",
diff --git a/packages/plugins/other/add/CHANGELOG.md b/packages/plugins/other/add/CHANGELOG.md
index 8efd718a69f..d855cf88744 100644
--- a/packages/plugins/other/add/CHANGELOG.md
+++ b/packages/plugins/other/add/CHANGELOG.md
@@ -1,5 +1,20 @@
 # @graphql-codegen/add
 
+## 7.1.1
+
+### Patch Changes
+
+- [#10986](https://github.com/dotansimha/graphql-code-generator/pull/10986)
+  [`9597b5b`](https://github.com/dotansimha/graphql-code-generator/commit/9597b5bc76c24b66f3e7b000e1038ad8d6ab3450)
+  Thanks [@eddeee888](https://github.com/eddeee888)! - The plugin output's `content` is now an empty
+  string (`''`) instead of `null` when `placement` is `prepend` or `append`. This matches the
+  `ComplexPluginOutput` type (`content: string`). Code that calls the plugin directly and checks
+  `content === null` should check for an empty string instead. Generated files are unchanged.
+
+- Updated dependencies
+  [[`1d1153b`](https://github.com/dotansimha/graphql-code-generator/commit/1d1153b3b161fa82057d586bb5fe524e1e17efe3)]:
+  - @graphql-codegen/plugin-helpers@7.4.0
+
 ## 7.1.0
 
 ### Minor Changes
diff --git a/packages/plugins/other/add/package.json b/packages/plugins/other/add/package.json
index ccd04f4567f..526f8d81ba2 100644
--- a/packages/plugins/other/add/package.json
+++ b/packages/plugins/other/add/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@graphql-codegen/add",
-  "version": "7.1.0",
+  "version": "7.1.1",
   "type": "module",
   "description": "GraphQL Code Generator plugin for adding custom content to your output file",
   "repository": {
diff --git a/packages/plugins/other/visitor-plugin-common/CHANGELOG.md b/packages/plugins/other/visitor-plugin-common/CHANGELOG.md
index 9de987a0c8f..65963f36fb6 100644
--- a/packages/plugins/other/visitor-plugin-common/CHANGELOG.md
+++ b/packages/plugins/other/visitor-plugin-common/CHANGELOG.md
@@ -1,5 +1,30 @@
 # @graphql-codegen/visitor-plugin-common
 
+## 7.2.6
+
+### Patch Changes
+
+- [#10982](https://github.com/dotansimha/graphql-code-generator/pull/10982)
+  [`e5361bc`](https://github.com/dotansimha/graphql-code-generator/commit/e5361bcb7ba0c21d94ead07d7b7dfc3d2b11e98c)
+  Thanks [@eddeee888](https://github.com/eddeee888)! - Fix out-of-memory errors with deeply nested,
+  widely reused fragments
+  ([#10940](https://github.com/dotansimha/graphql-code-generator/issues/10940)).
+
+  The type cache used while generating selection set types was keyed by every fragment-expanded
+  field path, so its keys grew exponentially with fragment nesting. Keys are now built from the
+  selection set as written, referencing fragment spreads by name, so they stay linear in the size of
+  the documents. The exported `getFieldNames` helper from `@graphql-codegen/visitor-plugin-common`,
+  which built those expanded paths, is removed.
+
+- [#10993](https://github.com/dotansimha/graphql-code-generator/pull/10993)
+  [`be69e9d`](https://github.com/dotansimha/graphql-code-generator/commit/be69e9d1a9c234061754a1922b8b961ec80a2fcb)
+  Thanks [@eddeee888](https://github.com/eddeee888)! - Type `getConfigValue`'s `value` parameter as
+  `T | null | undefined`, so the result is non-nullable when a non-nullable default is given.
+
+- Updated dependencies
+  [[`1d1153b`](https://github.com/dotansimha/graphql-code-generator/commit/1d1153b3b161fa82057d586bb5fe524e1e17efe3)]:
+  - @graphql-codegen/plugin-helpers@7.4.0
+
 ## 7.2.5
 
 ### Patch Changes
diff --git a/packages/plugins/other/visitor-plugin-common/package.json b/packages/plugins/other/visitor-plugin-common/package.json
index 5867c5585b8..a2961193eb7 100644
--- a/packages/plugins/other/visitor-plugin-common/package.json
+++ b/packages/plugins/other/visitor-plugin-common/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@graphql-codegen/visitor-plugin-common",
-  "version": "7.2.5",
+  "version": "7.2.6",
   "type": "module",
   "repository": {
     "type": "git",
diff --git a/packages/plugins/other/visitor-plugin-common/src/selection-set-to-object.ts b/packages/plugins/other/visitor-plugin-common/src/selection-set-to-object.ts
index 3af8bb9de17..af79a510a5c 100644
--- a/packages/plugins/other/visitor-plugin-common/src/selection-set-to-object.ts
+++ b/packages/plugins/other/visitor-plugin-common/src/selection-set-to-object.ts
@@ -44,9 +44,9 @@ import type {
 import {
   DeclarationBlock,
   DeclarationBlockConfig,
-  getFieldNames,
   getFieldNodeNameValue,
   getPossibleTypes,
+  getSelectionSetCacheKey,
   hasConditionalDirectives,
   hasIncrementalDeliveryDirectives,
   mergeSelectionSets,
@@ -1107,12 +1107,7 @@ export class SelectionSetToObject<
   public transformSelectionSet(fieldName: string) {
     const possibleTypesList = getPossibleTypes(this._schema, this._parentSchemaType);
     const possibleTypes = possibleTypesList.map(v => v.name).sort();
-    const fieldSelections = [
-      ...getFieldNames({
-        selections: this._selectionSet.selections,
-        loadedFragments: this._loadedFragments,
-      }),
-    ].sort();
+    const selectionSetKey = getSelectionSetCacheKey(this._selectionSet);
 
     // Optimization: Do not create new dependentTypes if fragment typename exists in cache
     // 2-layer cache: LOC => Field Selection Type Combination => cachedTypeString
@@ -1120,7 +1115,7 @@ export class SelectionSetToObject<
       this._processor.typeCache.get(this._selectionSet.loc) ?? new Map<string, [string, string]>();
     this._processor.typeCache.set(this._selectionSet.loc, objMap);
 
-    const cacheHashKey = `${fieldSelections.join(',')} @ ${possibleTypes.join('|')}`;
+    const cacheHashKey = `${selectionSetKey} @ ${possibleTypes.join('|')}`;
     const [cachedTypeString] = objMap.get(cacheHashKey) ?? [];
     if (cachedTypeString) {
       // reuse previously generated type, as it is identical
diff --git a/packages/plugins/other/visitor-plugin-common/src/utils.ts b/packages/plugins/other/visitor-plugin-common/src/utils.ts
index 55e85b6ca65..e08a4b15ed1 100644
--- a/packages/plugins/other/visitor-plugin-common/src/utils.ts
+++ b/packages/plugins/other/visitor-plugin-common/src/utils.ts
@@ -21,6 +21,7 @@ import {
   Kind,
   NamedTypeNode,
   NameNode,
+  print,
   SelectionNode,
   SelectionSetNode,
   StringValueNode,
@@ -30,12 +31,7 @@ import type { RawConfig } from './base-visitor.js';
 import { parseMapper } from './mappers.js';
 import { DEFAULT_SCALARS } from './scalars.js';
 import type { EnrichedFieldNode } from './selection-set-to-object.js';
-import type {
-  LoadedFragment,
-  NormalizedScalarsMap,
-  ParsedScalarsMap,
-  ScalarsMap,
-} from './types.js';
+import type { NormalizedScalarsMap, ParsedScalarsMap, ScalarsMap } from './types.js';
 
 export const getConfigValue = <T = any>(value: T | null | undefined, defaultValue: T): T => {
   if (value === null || value === undefined) {
@@ -652,64 +648,70 @@ export function unique<T>(
   return Object.values(array.reduce((acc, item) => ({ [key(item)]: item, ...acc }), {}));
 }
 
-function getFullPathFieldName(selection: FieldNode, parentName: string) {
-  const fullName =
-    'alias' in selection && selection.alias
-      ? `${selection.alias.value}@${selection.name.value}`
-      : selection.name.value;
-  return parentName ? `${parentName}.${fullName}` : fullName;
-}
+/**
+ * Memoizes `getSelectionSetCacheKey` per selection set node. Entries are dropped once the node's
+ * document is no longer referenced.
+ *
+ * @internal Exported for tests only; not part of the public API.
+ */
+export const selectionSetCacheKeys = new WeakMap<SelectionSetNode, string>();
 
-export const getFieldNames = ({
-  selections,
-  fieldNames = new Set(),
-  parentName = '',
-  loadedFragments,
-}: {
-  selections: readonly SelectionNode[];
-  fieldNames?: Set<string>;
-  parentName?: string;
-  loadedFragments: LoadedFragment[];
-}) => {
-  for (const selection of selections) {
+/**
+ * Builds a cache key describing a selection set as written: fragment spreads are referenced by
+ * name rather than expanded, so the key stays linear in the size of the document even when
+ * fragments are deeply nested and widely reused. The parts are sorted so the key does not depend
+ * on selection order.
+ *
+ * Examples:
+ * - `{ user { id name } }` becomes `user{id,name}` (the inner `{ id name }` becomes `id,name`)
+ * - `{ id ...UserFields }` becomes `...UserFields,id` (the fragment is referenced by name, not
+ *   expanded)
+ * - `{ ... on Admin { role } }` becomes `... on Admin{role}`
+ * - `{ me: user { id ...UserFields @include(if: $withFields) ... on Admin { role } } }` becomes
+ *   `me@user{... on Admin{role},...UserFields @include(if: $withFields),id}`
+ *
+ * @internal Not part of the public API.
+ */
+export function getSelectionSetCacheKey(selectionSet: SelectionSetNode): string {
+  const cached = selectionSetCacheKeys.get(selectionSet);
+  if (cached !== undefined) {
+    return cached;
+  }
+
+  const printDirectives = (directives: readonly DirectiveNode[] | undefined): string =>
+    directives?.length ? ` ${directives.map(directive => print(directive)).join(' ')}` : '';
+
+  const parts = new Set<string>();
+  for (const selection of selectionSet.selections) {
     switch (selection.kind) {
       case Kind.FIELD: {
-        const fieldName = getFullPathFieldName(selection, parentName);
-        fieldNames.add(fieldName);
-        if (selection.selectionSet) {
-          getFieldNames({
-            selections: selection.selectionSet.selections,
-            fieldNames,
-            parentName: fieldName,
-            loadedFragments,
-          });
-        }
+        const name = selection.alias
+          ? `${selection.alias.value}@${selection.name.value}`
+          : selection.name.value;
+        const subKey = selection.selectionSet
+          ? `{${getSelectionSetCacheKey(selection.selectionSet)}}`
+          : '';
+        parts.add(`${name}${printDirectives(selection.directives)}${subKey}`);
         break;
       }
       case Kind.FRAGMENT_SPREAD: {
-        getFieldNames({
-          selections: loadedFragments
-            .filter(def => def.name === selection.name.value)
-            .flatMap(s => s.node.selectionSet.selections),
-          fieldNames,
-          parentName,
-          loadedFragments,
-        });
+        parts.add(`...${selection.name.value}${printDirectives(selection.directives)}`);
         break;
       }
       case Kind.INLINE_FRAGMENT: {
-        getFieldNames({
-          selections: selection.selectionSet.selections,
-          fieldNames,
-          parentName,
-          loadedFragments,
-        });
+        const onType = selection.typeCondition ? ` on ${selection.typeCondition.name.value}` : '';
+        parts.add(
+          `...${onType}${printDirectives(selection.directives)}{${getSelectionSetCacheKey(selection.selectionSet)}}`,
+        );
         break;
       }
     }
   }
-  return fieldNames;
-};
+
+  const key = [...parts].sort().join(',');
+  selectionSetCacheKeys.set(selectionSet, key);
+  return key;
+}
 
 export const getNodeComment = (
   node: FieldDefinitionNode | EnumValueDefinitionNode | InputValueDefinitionNode,
diff --git a/packages/plugins/typescript/document-nodes/CHANGELOG.md b/packages/plugins/typescript/document-nodes/CHANGELOG.md
index d384206711d..bcd3f244a15 100644
--- a/packages/plugins/typescript/document-nodes/CHANGELOG.md
+++ b/packages/plugins/typescript/document-nodes/CHANGELOG.md
@@ -1,5 +1,22 @@
 # @graphql-codegen/typescript-document-nodes
 
+## 6.1.1
+
+### Patch Changes
+
+- [#10990](https://github.com/dotansimha/graphql-code-generator/pull/10990)
+  [`df288d8`](https://github.com/dotansimha/graphql-code-generator/commit/df288d8e047bbb7581a9bdc34c465a2988535e80)
+  Thanks [@eddeee888](https://github.com/eddeee888)! - Skip documents without a `document` AST
+  instead of throwing from `concatAST` when the plugin is called directly with one. Generated output
+  from the CLI is unchanged.
+
+- Updated dependencies
+  [[`e5361bc`](https://github.com/dotansimha/graphql-code-generator/commit/e5361bcb7ba0c21d94ead07d7b7dfc3d2b11e98c),
+  [`1d1153b`](https://github.com/dotansimha/graphql-code-generator/commit/1d1153b3b161fa82057d586bb5fe524e1e17efe3),
+  [`be69e9d`](https://github.com/dotansimha/graphql-code-generator/commit/be69e9d1a9c234061754a1922b8b961ec80a2fcb)]:
+  - @graphql-codegen/visitor-plugin-common@7.2.6
+  - @graphql-codegen/plugin-helpers@7.4.0
+
 ## 6.1.0
 
 ### Minor Changes
diff --git a/packages/plugins/typescript/document-nodes/package.json b/packages/plugins/typescript/document-nodes/package.json
index f993356532d..5a387a58325 100644
--- a/packages/plugins/typescript/document-nodes/package.json
+++ b/packages/plugins/typescript/document-nodes/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@graphql-codegen/typescript-document-nodes",
-  "version": "6.1.0",
+  "version": "6.1.1",
   "type": "module",
   "description": "GraphQL Code Generator plugin for generating TypeScript modules with embedded GraphQL document nodes",
   "repository": {
diff --git a/packages/plugins/typescript/operations/CHANGELOG.md b/packages/plugins/typescript/operations/CHANGELOG.md
index bbd62298e11..09988e6de6b 100644
--- a/packages/plugins/typescript/operations/CHANGELOG.md
+++ b/packages/plugins/typescript/operations/CHANGELOG.md
@@ -1,5 +1,28 @@
 # @graphql-codegen/typescript-operations
 
+## 6.1.8
+
+### Patch Changes
+
+- [#10982](https://github.com/dotansimha/graphql-code-generator/pull/10982)
+  [`e5361bc`](https://github.com/dotansimha/graphql-code-generator/commit/e5361bcb7ba0c21d94ead07d7b7dfc3d2b11e98c)
+  Thanks [@eddeee888](https://github.com/eddeee888)! - Fix out-of-memory errors with deeply nested,
+  widely reused fragments
+  ([#10940](https://github.com/dotansimha/graphql-code-generator/issues/10940)).
+
+  The type cache used while generating selection set types was keyed by every fragment-expanded
+  field path, so its keys grew exponentially with fragment nesting. Keys are now built from the
+  selection set as written, referencing fragment spreads by name, so they stay linear in the size of
+  the documents. The exported `getFieldNames` helper from `@graphql-codegen/visitor-plugin-common`,
+  which built those expanded paths, is removed.
+
+- Updated dependencies
+  [[`e5361bc`](https://github.com/dotansimha/graphql-code-generator/commit/e5361bcb7ba0c21d94ead07d7b7dfc3d2b11e98c),
+  [`1d1153b`](https://github.com/dotansimha/graphql-code-generator/commit/1d1153b3b161fa82057d586bb5fe524e1e17efe3),
+  [`be69e9d`](https://github.com/dotansimha/graphql-code-generator/commit/be69e9d1a9c234061754a1922b8b961ec80a2fcb)]:
+  - @graphql-codegen/visitor-plugin-common@7.2.6
+  - @graphql-codegen/plugin-helpers@7.4.0
+
 ## 6.1.7
 
 ### Patch Changes
diff --git a/packages/plugins/typescript/operations/package.json b/packages/plugins/typescript/operations/package.json
index d8a96f1883c..3334698e1be 100644
--- a/packages/plugins/typescript/operations/package.json
+++ b/packages/plugins/typescript/operations/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@graphql-codegen/typescript-operations",
-  "version": "6.1.7",
+  "version": "6.1.8",
   "type": "module",
   "description": "GraphQL Code Generator plugin for generating TypeScript types for GraphQL queries, mutations, subscriptions and fragments",
   "repository": {
diff --git a/packages/plugins/typescript/operations/tests/ts-documents.nested-fragments-memory.spec.ts b/packages/plugins/typescript/operations/tests/ts-documents.nested-fragments-memory.spec.ts
new file mode 100644
index 00000000000..2108b261a74
--- /dev/null
+++ b/packages/plugins/typescript/operations/tests/ts-documents.nested-fragments-memory.spec.ts
@@ -0,0 +1,96 @@
+import { buildSchema, parse, print } from 'graphql';
+import { selectionSetCacheKeys } from '@graphql-codegen/visitor-plugin-common';
+import { plugin } from '../src/index.js';
+
+const schema = buildSchema(/* GraphQL */ `
+  type Query {
+    root: Node
+  }
+
+  type Node {
+    id: ID!
+    name: String
+    a: Node
+    b: Node
+    c: Node
+  }
+`);
+
+// A chain of fragments F0..F(DEPTH-1), where each fragment spreads the previous one under several fields.
+// The document as written is linear in DEPTH, but its fragment-expanded tree is 3^DEPTH in size.
+const DEPTH = 8;
+const buildDocumentSource = () => {
+  const fragments = [
+    /* GraphQL */ `
+      fragment F0 on Node {
+        id
+        name
+      }
+    `,
+  ];
+  for (let i = 1; i < DEPTH; i++) {
+    fragments.push(/* GraphQL */ `
+      fragment F${i} on Node {
+        id
+        a {
+          ...F${i - 1}
+        }
+        b {
+          ...F${i - 1}
+        }
+        c {
+          ...F${i - 1}
+        }
+      }
+    `);
+  }
+  return /* GraphQL */ `
+    query Root {
+      root {
+        ...F${DEPTH - 1}
+      }
+    }
+    ${fragments.join('\n')}
+  `;
+};
+
+describe('TypeScript Operations Plugin - deeply nested fragments (issue #10940)', () => {
+  it('does not retain type cache keys that grow exponentially with nested fragment reuse', async () => {
+    const document = parse(buildDocumentSource());
+    const printedDocumentLength = print(document).length;
+
+    // Spy on the memo behind the type cache keys, so we can measure every key that gets built.
+    const setSpy = vi.spyOn(selectionSetCacheKeys, 'set');
+
+    let result: Awaited<ReturnType<typeof plugin>>;
+    let cacheKeys: string[];
+    try {
+      // No config needed: each option (including every `inlineFragmentTypes` mode) was measured
+      // and none changes the cache key sizes; the growth comes from nested fragment reuse alone.
+      result = await plugin(
+        schema,
+        [{ location: 'test-file.ts', document }],
+        {},
+        { outputFile: 'graphql.ts' },
+      );
+    } finally {
+      // Read the calls before restoring: `mockRestore()` also clears them.
+      cacheKeys = setSpy.mock.calls.map(([, key]) => key);
+      setSpy.mockRestore();
+    }
+
+    // Output is produced for both the operation and the outermost fragment.
+    expect(result.content).toMatch(/export type RootQuery\b/);
+    expect(result.content).toMatch(new RegExp(`export type F${DEPTH - 1}Fragment\\b`));
+
+    // In user terms: memory retained by the type cache must scale with the documents as written,
+    // not with the fragment-expanded tree. Otherwise it grows exponentially with nested fragment
+    // reuse, and large projects with deeply nested, widely reused fragments run out of memory.
+    // Guard against the spy silently seeing nothing, which would make the bounds below pass vacuously.
+    expect(cacheKeys.length).toBeGreaterThan(0);
+
+    const bound = 10 * printedDocumentLength;
+    expect(Math.max(...cacheKeys.map(key => key.length))).toBeLessThan(bound);
+    expect(cacheKeys.reduce((total, key) => total + key.length, 0)).toBeLessThan(bound);
+  });
+});
diff --git a/packages/plugins/typescript/typed-document-node/CHANGELOG.md b/packages/plugins/typescript/typed-document-node/CHANGELOG.md
index c351098ca8a..dfec572c735 100644
--- a/packages/plugins/typescript/typed-document-node/CHANGELOG.md
+++ b/packages/plugins/typescript/typed-document-node/CHANGELOG.md
@@ -1,5 +1,22 @@
 # @graphql-codegen/typed-document-node
 
+## 7.1.1
+
+### Patch Changes
+
+- [#10994](https://github.com/dotansimha/graphql-code-generator/pull/10994)
+  [`1d1153b`](https://github.com/dotansimha/graphql-code-generator/commit/1d1153b3b161fa82057d586bb5fe524e1e17efe3)
+  Thanks [@eddeee888](https://github.com/eddeee888)! - Skip documents without a `document` AST
+  instead of throwing from `concatAST` when the plugin is called directly with one, and don't add an
+  empty import when `documentNodeImport` has no module. Generated output from the CLI is unchanged.
+
+- Updated dependencies
+  [[`e5361bc`](https://github.com/dotansimha/graphql-code-generator/commit/e5361bcb7ba0c21d94ead07d7b7dfc3d2b11e98c),
+  [`1d1153b`](https://github.com/dotansimha/graphql-code-generator/commit/1d1153b3b161fa82057d586bb5fe524e1e17efe3),
+  [`be69e9d`](https://github.com/dotansimha/graphql-code-generator/commit/be69e9d1a9c234061754a1922b8b961ec80a2fcb)]:
+  - @graphql-codegen/visitor-plugin-common@7.2.6
+  - @graphql-codegen/plugin-helpers@7.4.0
+
 ## 7.1.0
 
 ### Minor Changes
diff --git a/packages/plugins/typescript/typed-document-node/package.json b/packages/plugins/typescript/typed-document-node/package.json
index 3557188d16f..9eff75e73b4 100644
--- a/packages/plugins/typescript/typed-document-node/package.json
+++ b/packages/plugins/typescript/typed-document-node/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@graphql-codegen/typed-document-node",
-  "version": "7.1.0",
+  "version": "7.1.1",
   "type": "module",
   "description": "GraphQL Code Generator plugin for generating ready-to-use TypedDocumentNode based on GraphQL operations",
   "repository": {
diff --git a/packages/presets/graphql-modules/CHANGELOG.md b/packages/presets/graphql-modules/CHANGELOG.md
index 4a58ab0485d..4bea7565b50 100644
--- a/packages/presets/graphql-modules/CHANGELOG.md
+++ b/packages/presets/graphql-modules/CHANGELOG.md
@@ -1,5 +1,22 @@
 # @graphql-codegen/graphql-modules-preset
 
+## 6.1.1
+
+### Patch Changes
+
+- [#10993](https://github.com/dotansimha/graphql-code-generator/pull/10993)
+  [`be69e9d`](https://github.com/dotansimha/graphql-code-generator/commit/be69e9d1a9c234061754a1922b8b961ec80a2fcb)
+  Thanks [@eddeee888](https://github.com/eddeee888)! - Skip sources without a `location` when
+  grouping sources by module, instead of throwing from `path.normalize`, and skip sources without a
+  `document` AST when building each module's document. Generated output from the CLI is unchanged.
+
+- Updated dependencies
+  [[`e5361bc`](https://github.com/dotansimha/graphql-code-generator/commit/e5361bcb7ba0c21d94ead07d7b7dfc3d2b11e98c),
+  [`1d1153b`](https://github.com/dotansimha/graphql-code-generator/commit/1d1153b3b161fa82057d586bb5fe524e1e17efe3),
+  [`be69e9d`](https://github.com/dotansimha/graphql-code-generator/commit/be69e9d1a9c234061754a1922b8b961ec80a2fcb)]:
+  - @graphql-codegen/visitor-plugin-common@7.2.6
+  - @graphql-codegen/plugin-helpers@7.4.0
+
 ## 6.1.0
 
 ### Minor Changes
diff --git a/packages/presets/graphql-modules/package.json b/packages/presets/graphql-modules/package.json
index ddf9ff01a11..42cf5958fc6 100644
--- a/packages/presets/graphql-modules/package.json
+++ b/packages/presets/graphql-modules/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@graphql-codegen/graphql-modules-preset",
-  "version": "6.1.0",
+  "version": "6.1.1",
   "type": "module",
   "description": "GraphQL Code Generator preset for modularized schema",
   "repository": {
diff --git a/packages/utils/graphql-codegen-testing/CHANGELOG.md b/packages/utils/graphql-codegen-testing/CHANGELOG.md
index a1316cdde08..85bc14e2d23 100644
--- a/packages/utils/graphql-codegen-testing/CHANGELOG.md
+++ b/packages/utils/graphql-codegen-testing/CHANGELOG.md
@@ -1,5 +1,20 @@
 # @graphql-codegen/testing
 
+## 5.0.5
+
+### Patch Changes
+
+- [#10992](https://github.com/dotansimha/graphql-code-generator/pull/10992)
+  [`024fa34`](https://github.com/dotansimha/graphql-code-generator/commit/024fa34a88073d073c7fa10db0092ee5000dfdca)
+  Thanks [@eddeee888](https://github.com/eddeee888)! - Make `validateTs`/`compileTs` type-check
+  under `strict: true`: fall back to the compiler host's script target when the passed options have
+  no `target`, and only compute a diagnostic's line/column when it has a `start` position. Adds
+  `@types/common-tags` as a devDependency.
+
+- Updated dependencies
+  [[`1d1153b`](https://github.com/dotansimha/graphql-code-generator/commit/1d1153b3b161fa82057d586bb5fe524e1e17efe3)]:
+  - @graphql-codegen/plugin-helpers@7.4.0
+
 ## 5.0.4
 
 ### Patch Changes
diff --git a/packages/utils/graphql-codegen-testing/package.json b/packages/utils/graphql-codegen-testing/package.json
index c9aac4ca4d8..f9919e40ea3 100644
--- a/packages/utils/graphql-codegen-testing/package.json
+++ b/packages/utils/graphql-codegen-testing/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@graphql-codegen/testing",
-  "version": "5.0.4",
+  "version": "5.0.5",
   "type": "module",
   "description": "GraphQL Codegen Testing Utils",
   "repository": "git@github.com:dotansimha/graphql-code-generator.git",
diff --git a/packages/utils/plugins-helpers/CHANGELOG.md b/packages/utils/plugins-helpers/CHANGELOG.md
index 64d98b3f3ea..24d0ebd308f 100644
--- a/packages/utils/plugins-helpers/CHANGELOG.md
+++ b/packages/utils/plugins-helpers/CHANGELOG.md
@@ -1,5 +1,23 @@
 # @graphql-codegen/plugin-helpers
 
+## 7.4.0
+
+### Minor Changes
+
+- [#10994](https://github.com/dotansimha/graphql-code-generator/pull/10994)
+  [`1d1153b`](https://github.com/dotansimha/graphql-code-generator/commit/1d1153b3b161fa82057d586bb5fe524e1e17efe3)
+  Thanks [@eddeee888](https://github.com/eddeee888)! - Type `oldVisit`'s return value instead of
+  returning `any`. For a `DocumentNode`, the result is now `OldVisitDocumentResult`, whose
+  `definitions` are `unknown[]` because leave visitors can replace each definition with any value
+  (usually a string), and definitions without a leave visitor stay as AST nodes. When a `Document`
+  leave visitor returns its own value, pass its type as `oldVisit<TResult>(...)`. For other roots,
+  the result is `unknown` unless `TResult` is given.
+
+  Code that used the result as `any`, for example
+  `const definitions: string[] = result.definitions`, now needs to filter for strings, cast
+  (`result.definitions as string[]`), or pass `oldVisit<any>(...)`. Runtime behavior and generated
+  output are unchanged.
+
 ## 7.3.0
 
 ### Minor Changes
diff --git a/packages/utils/plugins-helpers/package.json b/packages/utils/plugins-helpers/package.json
index 59be9e85ce6..58afd099c7b 100644
--- a/packages/utils/plugins-helpers/package.json
+++ b/packages/utils/plugins-helpers/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@graphql-codegen/plugin-helpers",
-  "version": "7.3.0",
+  "version": "7.4.0",
   "type": "module",
   "description": "GraphQL Code Generator common utils and types",
   "repository": {