diff --git a/modules/roact-compat/src/Portal.lua b/modules/roact-compat/src/Portal.lua
index c9ec77f5..a38039d6 100644
--- a/modules/roact-compat/src/Portal.lua
+++ b/modules/roact-compat/src/Portal.lua
@@ -20,6 +20,7 @@ local ReactGlobals = require(Packages.ReactGlobals)
 
 local warnOnce = require(script.Parent.warnOnce)
 
+@[deprecated{ use = "ReactRoblox.createPortal()"}]
 local function PortalComponent(props)
 	if ReactGlobals.__DEV__ and ReactGlobals.__COMPAT_WARNINGS__ then
 		warnOnce("Roact.Portal", "Please use the createPortal API on ReactRoblox instead")
diff --git a/modules/roact-compat/src/RoactTree.lua b/modules/roact-compat/src/RoactTree.lua
index 8657cd31..5aeafcd0 100644
--- a/modules/roact-compat/src/RoactTree.lua
+++ b/modules/roact-compat/src/RoactTree.lua
@@ -28,6 +28,7 @@ type RoactHandle = {
 	parent: any, -- ROBLOX TODO: Instance?
 }
 
+@[deprecated{ use = "ReactRoblox.createRoot()"}]
 local function mount(element: any, parent: any, key: string?): RoactHandle
 	if ReactGlobals.__DEV__ and ReactGlobals.__COMPAT_WARNINGS__ then
 		warnOnce("mount", "Please use the createRoot API in ReactRoblox")
@@ -95,6 +96,7 @@ local function mount(element: any, parent: any, key: string?): RoactHandle
 	}
 end
 
+@[deprecated{ use = "ReactRoblox.createRoot()"}]
 local function update(roactHandle: RoactHandle, element)
 	if ReactGlobals.__DEV__ and ReactGlobals.__COMPAT_WARNINGS__ then
 		warnOnce("update", "Please use the createRoot API in ReactRoblox")
@@ -119,6 +121,7 @@ local function update(roactHandle: RoactHandle, element)
 	return roactHandle
 end
 
+@[deprecated{ use = "ReactRoblox.createRoot()"}]
 local function unmount(roactHandle: RoactHandle)
 	if ReactGlobals.__DEV__ and ReactGlobals.__COMPAT_WARNINGS__ then
 		warnOnce("unmount", "Please use the createRoot API in ReactRoblox")
diff --git a/modules/roact-compat/src/createFragment.lua b/modules/roact-compat/src/createFragment.lua
index cb2b62e6..a95af0a6 100644
--- a/modules/roact-compat/src/createFragment.lua
+++ b/modules/roact-compat/src/createFragment.lua
@@ -19,7 +19,8 @@ local React = require(Packages.React)
 
 local warnOnce = require(script.Parent.warnOnce)
 
-return function(elements)
+@[deprecated{use = "React.createElement(React.Fragment, ...)"}]
+local function createFragment(elements)
 	if ReactGlobals.__DEV__ and ReactGlobals.__COMPAT_WARNINGS__ then
 		warnOnce(
 			"createFragment",
@@ -28,3 +29,5 @@ return function(elements)
 	end
 	return React.createElement(React.Fragment, nil, elements)
 end
+
+return createFragment
diff --git a/modules/roact-compat/src/init.lua b/modules/roact-compat/src/init.lua
index 283b582f..8c986426 100644
--- a/modules/roact-compat/src/init.lua
+++ b/modules/roact-compat/src/init.lua
@@ -25,10 +25,18 @@ return {
 	-- Overlapping contents of public `React` interface
 	Component = React.Component,
 	PureComponent = React.PureComponent,
-	createElement = React.createElement,
-	createRef = React.createRef,
-	forwardRef = React.forwardRef,
-	createContext = React.createContext,
+	createElement = @[deprecated{ use = "React.createElement"}] function(...)
+		return React.createElement(...)
+	end,
+	createRef = @[deprecated{ use = "React.createRef"}] function(...)
+		return React.createRef(...)
+	end,
+	forwardRef = @[deprecated{ use = "React.forwardRef"}] function(...)
+		return React.forwardRef(...)
+	end,
+	createContext = @[deprecated{ use = "React.createContext"}] function(...)
+		return React.createContext(...)
+	end,
 	-- This public interface is aligned but is a deviation in React. It's
 	-- necessary to accommodate lua table semantics when merging state
 	None = React.None,
@@ -59,8 +67,14 @@ return {
 	Change = Shared.Change,
 
 	-- Binding interface entry-point for Roact-specific 'bindings' feature
-	createBinding = React.createBinding,
-	joinBindings = React.joinBindings,
+	createBinding = @[deprecated{ use = "React.createBinding()"}] function(...)
+		return React.createBinding(...)
+	end,
+	joinBindings = @[deprecated{ use = "React.joinBindings()"}] function(...)
+		return React.joinBindings(...)
+	end,
 
-	act = ReactRoblox.act,
+	act = @[deprecated{ use = "ReactRoblox.act()"}] function(...)
+		return ReactRoblox.act(...)
+	end,
 }
diff --git a/modules/roact-compat/src/oneChild.lua b/modules/roact-compat/src/oneChild.lua
index 59cdc068..92c2ae0a 100644
--- a/modules/roact-compat/src/oneChild.lua
+++ b/modules/roact-compat/src/oneChild.lua
@@ -19,6 +19,9 @@ local ReactGlobals = require(Packages.ReactGlobals)
 
 local warnOnce = require(script.Parent.warnOnce)
 
+@[deprecated{
+	reason = "You likely don't need this at all! If you were assigning children via `React.oneChild(someChildren)`, you can simply use `someChildren` directly."
+}]
 local function oneChild(children)
 	if ReactGlobals.__DEV__ and ReactGlobals.__COMPAT_WARNINGS__ then
 		warnOnce(
diff --git a/modules/roact-compat/src/setGlobalConfig.lua b/modules/roact-compat/src/setGlobalConfig.lua
index 86a22da5..dbfbc7df 100644
--- a/modules/roact-compat/src/setGlobalConfig.lua
+++ b/modules/roact-compat/src/setGlobalConfig.lua
@@ -18,7 +18,8 @@ local Packages = script.Parent.Parent
 local ReactGlobals = require(Packages.ReactGlobals)
 local warnOnce = require(script.Parent.warnOnce)
 
-return function(_config)
+@[deprecated{ use = "ReactGlobals.__DEV__"}]
+local function setGlobalConfig(_config)
 	if ReactGlobals.__DEV__ and ReactGlobals.__COMPAT_WARNINGS__ then
 		warnOnce(
 			"setGlobalConfig",
@@ -29,3 +30,5 @@ return function(_config)
 	end
 	-- No equivalent behavior can be applied here
 end
+
+return setGlobalConfig