diff --git a/CHANGELOG.md b/CHANGELOG.md
index 97385619..c2d67707 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -75,6 +75,7 @@
 
 ##### Features
 
+-   [`00fd68d`](https://github.com/stdlib-js/stdlib/commit/00fd68ddf80a71b08e5353c63c297fca4daaf873) - update namespace TypeScript declarations [(#2415)](https://github.com/stdlib-js/stdlib/pull/2415)
 -   [`fd71d8a`](https://github.com/stdlib-js/stdlib/commit/fd71d8a39d9dc53b0d941945d26178e2e079edbc) - add `place` to namespace
 -   [`20cd086`](https://github.com/stdlib-js/stdlib/commit/20cd0868236daf523fcd659d027e2277f7e1cb56) - add `mskput` to namespace
 -   [`2827035`](https://github.com/stdlib-js/stdlib/commit/2827035933c44ebb301a44200ff9cd5ad73e9ef0) - add `where` to namespace
@@ -2115,6 +2116,7 @@ A total of 13 people contributed to this release. Thank you to the following con
 
 <details>
 
+-   [`00fd68d`](https://github.com/stdlib-js/stdlib/commit/00fd68ddf80a71b08e5353c63c297fca4daaf873) - **feat:** update namespace TypeScript declarations [(#2415)](https://github.com/stdlib-js/stdlib/pull/2415) _(by stdlib-bot, Athan Reines)_
 -   [`0b3db04`](https://github.com/stdlib-js/stdlib/commit/0b3db0401bd16df7aeccb500d8280c280a394762) - **feat:** add `toSorted` method to `array/bool` [(#2413)](https://github.com/stdlib-js/stdlib/pull/2413) _(by Jaysukh Makvana)_
 -   [`e57ccb2`](https://github.com/stdlib-js/stdlib/commit/e57ccb234687de4087aa12348d266ea448f3f241) - **refactor:** update boolean array indexing implementation and add tests _(by Athan Reines)_
 -   [`d903fc9`](https://github.com/stdlib-js/stdlib/commit/d903fc907ddaacc144a97edaaed0f05abadc470c) - **fix:** require broadcast compatibility _(by Athan Reines)_
diff --git a/base/docs/types/index.d.ts b/base/docs/types/index.d.ts
index d07c9581..18c6e6b2 100644
--- a/base/docs/types/index.d.ts
+++ b/base/docs/types/index.d.ts
@@ -131,6 +131,7 @@ import minSignedIntegerDataType = require( './../../../base/min-signed-integer-d
 import minUnsignedIntegerDataType = require( './../../../base/min-unsigned-integer-dtype' );
 import mskbinary2d = require( './../../../base/mskbinary2d' );
 import mskfilter = require( './../../../base/mskfilter' );
+import mskput = require( './../../../base/mskput' );
 import mskreject = require( './../../../base/mskreject' );
 import mskunary2d = require( './../../../base/mskunary2d' );
 import mskunary3d = require( './../../../base/mskunary3d' );
@@ -145,6 +146,7 @@ import ones3d = require( './../../../base/ones3d' );
 import ones4d = require( './../../../base/ones4d' );
 import ones5d = require( './../../../base/ones5d' );
 import onesnd = require( './../../../base/onesnd' );
+import place = require( './../../../base/place' );
 import put = require( './../../../base/put' );
 import quaternary2d = require( './../../../base/quaternary2d' );
 import quaternary3d = require( './../../../base/quaternary3d' );
@@ -182,6 +184,7 @@ import unary4d = require( './../../../base/unary4d' );
 import unary5d = require( './../../../base/unary5d' );
 import unarynd = require( './../../../base/unarynd' );
 import unitspace = require( './../../../base/unitspace' );
+import where = require( './../../../base/where' );
 import arrayWith = require( './../../../base/with' );
 import zeroTo = require( './../../../base/zero-to' );
 import zeros = require( './../../../base/zeros' );
@@ -2874,6 +2877,38 @@ interface Namespace {
 	*/
 	mskfilter: typeof mskfilter;
 
+	/**
+	* Replaces elements of an array with provided values according to a provided mask array.
+	*
+	* @param x - input array
+	* @param mask - mask array
+	* @param values - values to set
+	* @param mode - string specifying behavior when the number of values does not equal the number of falsy values in the mask array
+	* @returns input array
+	*
+	* @example
+	* var x = [ 1, 2, 3, 4 ];
+	*
+	* var mask = [ 1, 0, 0, 1 ];
+	* var values = [ 20, 30 ];
+	*
+	* var out = ns.mskput( x, mask, values, 'strict' );
+	* // returns [ 1, 20, 30, 4 ]
+	*
+	* var bool = ( out === x );
+	* // returns true
+	*
+	* @example
+	* var x = [ 1, 2, 3, 4 ];
+	*
+	* var out = ns.mskput( x, [ 1, 0, 0, 1 ], [ 30 ], 'strict_broadcast' );
+	* // returns [ 1, 30, 30, 4 ]
+	*
+	* var bool = ( out === x );
+	* // returns true
+	*/
+	mskput: typeof mskput;
+
 	/**
 	* Returns a new array by applying a mask to a provided input array.
 	*
@@ -3143,6 +3178,38 @@ interface Namespace {
 	*/
 	onesnd: typeof onesnd;
 
+	/**
+	* Replaces elements of an array with provided values according to a provided mask array.
+	*
+	* @param x - input array
+	* @param mask - mask array
+	* @param values - values to set
+	* @param mode - string specifying behavior when the number of values does not equal the number of truthy values in the mask array
+	* @returns input array
+	*
+	* @example
+	* var x = [ 1, 2, 3, 4 ];
+	*
+	* var mask = [ 0, 1, 1, 0 ];
+	* var values = [ 20, 30 ];
+	*
+	* var out = ns.place( x, mask, values, 'strict' );
+	* // returns [ 1, 20, 30, 4 ]
+	*
+	* var bool = ( out === x );
+	* // returns true
+	*
+	* @example
+	* var x = [ 1, 2, 3, 4 ];
+	*
+	* var out = ns.place( x, [ 0, 1, 1, 0 ], [ 30 ], 'strict_broadcast' );
+	* // returns [ 1, 30, 30, 4 ]
+	*
+	* var bool = ( out === x );
+	* // returns true
+	*/
+	place: typeof place;
+
 	/**
 	* Replaces specified elements of an array with provided values.
 	*
@@ -4133,6 +4200,38 @@ interface Namespace {
 	*/
 	unitspace: typeof unitspace;
 
+	/**
+	* Takes elements from either one of two arrays depending on a condition.
+	*
+	* @param condition - array containing indicator values
+	* @param x - first input array
+	* @param y - second input array
+	* @returns output array
+	*
+	* @example
+	* var x = [ 1, 2, 3, 4 ];
+	* var y = [ 5, 6, 7, 8 ];
+	*
+	* var condition = [ true, false, true, false ];
+	*
+	* var z = ns.where( condition, x, y );
+	* // returns [ 1, 6, 3, 8 ]
+	*
+	* @example
+	* var x = [ 1, 2, 3, 4 ];
+	* var y = [ 5, 6, 7, 8 ];
+	*
+	* var out = [ 0, 0, 0, 0 ];
+	* var condition = [ true, false, true, false ];
+	*
+	* var arr = assign( condition, x, y, out, 1, 0 );
+	* // returns [ 1, 6, 3, 8 ]
+	*
+	* var bool = ( arr === out );
+	* // returns true
+	*/
+	where: typeof where;
+
 	/**
 	* Returns a new array with the element at the specified index replaced with a provided value.
 	*