diff --git a/book/guides/code-quality-checklist.md b/book/guides/code-quality-checklist.md
index 75656d51..1a750311 100644
--- a/book/guides/code-quality-checklist.md
+++ b/book/guides/code-quality-checklist.md
@@ -294,12 +294,13 @@ ctx.sender()
 
 ### Vector Has a Literal. And Associated Functions
 
+`vector::empty` and `vector::singleton` are deprecated in MoveStdlib. Use vector literal syntax instead.
+
 ```move
-// bad!
+// bad! (vector::empty and vector::singleton are now deprecated)
 let mut my_vec = vector::empty();
 vector::push_back(&mut my_vec, 10);
-let first_el = vector::borrow(&my_vec);
-assert!(vector::length(&my_vec) == 1);
+let singleton = vector::singleton(10); // also deprecated
 
 // good!
 let mut my_vec = vector[10];
@@ -593,4 +594,4 @@ Being friendly and helping reviewers understand the code!
 // Note: can underflow if a value is smaller than 10.
 // TODO: add an `assert!` here
 let value = external_call(value, ctx);
-```
+```
\ No newline at end of file
diff --git a/book/programmability/dynamic-fields.md b/book/programmability/dynamic-fields.md
index 27bb303a..54dbc019 100644
--- a/book/programmability/dynamic-fields.md
+++ b/book/programmability/dynamic-fields.md
@@ -46,9 +46,11 @@ and `Value` type parameters define the abilities that the key and value must hav
 ## Usage
 
 The methods available for dynamic fields are straightforward: a field can be added with `add`,
-removed with `remove`, and read with `borrow` and `borrow_mut`. Additionally, the `exists_` method
+removed with `remove`, and read with `borrow` and `borrow_mut`. Additionally, the `exists` method
 can be used to check if a field exists (for stricter checks with type, there is an
-`exists_with_type` method).
+`exists_with_type` method). Note: `exists_` is deprecated in favor of `exists`. To remove a field
+if it exists and return an `Option`, use `remove_opt` (note: `remove_if_exists` is deprecated in
+favor of `remove_opt`).
 
 ```move file=packages/samples/sources/programmability/dynamic-fields.move anchor=usage
 
@@ -184,4 +186,4 @@ on the ability to define them _later_ and change the type of the field.
 ## Next Steps
 
 In the next section we will cover [Dynamic Object Fields](./dynamic-object-fields) and explain how
-they differ from dynamic fields, and what are the implications of using them.
+they differ from dynamic fields, and what are the implications of using them.
\ No newline at end of file
diff --git a/book/programmability/dynamic-object-fields.md b/book/programmability/dynamic-object-fields.md
index 4d640cfb..b5c62182 100644
--- a/book/programmability/dynamic-object-fields.md
+++ b/book/programmability/dynamic-object-fields.md
@@ -59,9 +59,10 @@ Let's list them for reference:
 
 - `add` - adds a dynamic object field to the object
 - `remove` - removes a dynamic object field from the object
+- `remove_opt` - removes a dynamic object field if it exists, returning an `Option`
 - `borrow` - borrows a dynamic object field from the object
 - `borrow_mut` - borrows a mutable reference to a dynamic object field from the object
-- `exists_` - checks if a dynamic object field exists
+- `exists` - checks if a dynamic object field exists
 - `exists_with_type` - checks if a dynamic object field exists with a specific type
 
 Additionally, there is an `id` method which returns the `ID` of the `Value` object without
@@ -94,4 +95,4 @@ Both dynamic field and dynamic object fields are powerful features which allow f
 solutions in applications. However, they are relatively low-level and require careful handling to
 avoid orphaned fields. In the next section, we will introduce a higher-level abstraction -
 [Dynamic Collections](./dynamic-collections) - which can help with managing dynamic fields and
-objects more effectively.
+objects more effectively.
\ No newline at end of file