diff --git a/docs/manual.md b/docs/manual.md
index 3b940eb0b..7e22e2642 100644
--- a/docs/manual.md
+++ b/docs/manual.md
@@ -32,6 +32,7 @@ Welcome to Turso database manual!
     * [Code generator](#code-generator)
     * [Query optimizer](#query-optimizer)
   * [Virtual Machine](#virtual-machine)
+  * [MVCC](#mvcc)
   * [Pager](#pager)
   * [I/O](#io)
 
@@ -505,8 +506,12 @@ The code generator module takes AST as input and produces virtual machine progra
   
 #### Query optimizer
 
+TODO
+
 ### Virtual Machine
 
+TODO
+
 ### MVCC
 
 The database implements a multi-version concurrency control (MVCC) using a hybrid architecture that combines an in-memory index with persistent storage through WAL (Write-Ahead Logging) and SQLite database files. The implementation draws from the Hekaton approach documented in Larson et al. (2011), with key modifications for durability handling.
@@ -533,5 +538,4 @@ TODO
 
 Per-Åke Larson et al. "High-Performance Concurrency Control Mechanisms for Main-Memory Databases." In _VLDB '11_
 
-
 [SQLite]: https://www.sqlite.org/