diff --git a/CHANGELOG.md b/CHANGELOG.md
index 85148ca..9c1b6fd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,14 @@
 
 All notable changes to the CueMap TypeScript SDK will be documented in this file.
 
+## [0.7.5] - 2026-10-14
+
+### Added
+- `ExpansionDepth` type (`number | 'conversation_round'`) for recall requests, and the `'conversation'` segmenter for `/ingest/content` chat histories (Claude or ChatGPT exports, JSON message lists, role- or speaker-labelled transcripts).
+
+### Changed
+- Synchronized with CueMap Engine v0.7.5, whose recall default is `expansion_depth: 'conversation_round'` (each result gets the message it replies to, and the top result gets its answer). Pass `expansion_depth: 1` for the previous matched-memory-only behaviour.
+
 ## [0.7.3] - 2026-08-27
 
 ### Changed
diff --git a/package-lock.json b/package-lock.json
index b48fd97..b21e85c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "cuemap",
-  "version": "0.7.3",
+  "version": "0.7.5",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "cuemap",
-      "version": "0.7.3",
+      "version": "0.7.5",
       "license": "MIT",
       "devDependencies": {
         "@types/node": "^20.0.0",
diff --git a/package.json b/package.json
index 71c3ddf..1b7e549 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cuemap",
-  "version": "0.7.3",
+  "version": "0.7.5",
   "description": "CueMap TypeScript SDK - High-performance temporal-associative memory",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
diff --git a/src/index.ts b/src/index.ts
index 022b15d..d48f305 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -12,8 +12,20 @@ export interface CueMapConfig {
 
 export type MemoryId = number | string;
 export type RecallExpansionMode = 'off' | 'auto' | 'force';
+/**
+ * Neighbour context for each result: 'conversation_round' (the engine default) prepends the
+ * message each result replies to and appends the answer to the top result (needs session,
+ * turn and role metadata on the memories; others are returned as they are), or a number
+ * (1 = the matched memory only; n > 1 adds source-ordered neighbours within radius n - 1).
+ */
+export type ExpansionDepth = number | 'conversation_round';
 export type SemanticRecallMode = 'lexical' | 'semantic' | 'hybrid';
-export type TextSegmenterMode = 'sentence_window' | 'logical_block';
+/**
+ * How `/ingest/content` splits content. 'conversation' expects a chat history (Claude or
+ * ChatGPT export, JSON message list, or a role/speaker-labelled transcript) and stores one
+ * memory per message with conversation, turn and role metadata.
+ */
+export type TextSegmenterMode = 'sentence_window' | 'logical_block' | 'conversation';
 export type IntentTarget = 'query' | 'memory';
 
 export interface IntentClassification {
@@ -149,7 +161,7 @@ export interface RecallRequest {
   trace_timing?: boolean;
   disable_salience_bias?: boolean;
   disable_alias_expansion?: boolean;
-  expansion_depth?: number;
+  expansion_depth?: ExpansionDepth;
   parent_fusion?: RecallExpansionMode;
   parent_fusion_limit?: number;
   parent_fusion_min_chunks?: number;
@@ -989,7 +1001,7 @@ export interface RecallGroundedRequest {
   projects?: string[];
   disable_salience_bias?: boolean;
   disable_alias_expansion?: boolean;
-  expansion_depth?: number;
+  expansion_depth?: ExpansionDepth;
   /** @deprecated Removed from the v0.7 engine. Accepted for source compatibility but not sent. */
   disable_pattern_completion?: boolean;
   /** @deprecated Removed from the v0.7 engine. Accepted for source compatibility but not sent. */