Update braille when control+v, control+x, control+y, control+z, backspace or control+backspace is pressed and UIA not used in ms word

source/NVDAObjects/IAccessible/winword.py

@@ -47,12 +47,7 @@ def _get_ignoreEditorRevisions(self):
 	ignoreFormatting=False
 
 	def event_caret(self):
-		curSelectionPos=self.makeTextInfo(textInfos.POSITION_SELECTION)
-		lastSelectionPos=getattr(self,'_lastSelectionPos',None)
-		self._lastSelectionPos=curSelectionPos
-		if lastSelectionPos:
-			if curSelectionPos._rangeObj.isEqual(lastSelectionPos._rangeObj):
-				return
+		self._lastSelectionPos = self.makeTextInfo(textInfos.POSITION_SELECTION)
 		super(WordDocument,self).event_caret()
 
 	def _get_role(self):

source/NVDAObjects/UIA/wordDocument.py

@@ -36,6 +36,8 @@
 )
 from NVDAObjects import NVDAObject
 from scriptHandler import script
+import api
+import eventHandler
 
 
 """Support for Microsoft Word via UI Automation."""
@@ -544,14 +546,26 @@ class WordDocument(UIADocumentWithTableNavigation,WordDocumentNode,WordDocumentB
 	def event_textChange(self):
 		# Ensure Braille is updated when text changes,
 		# As Microsoft Word does not fire caret events when typing text, even though the caret does move.
-		braille.handler.handleCaretMove(self)
+		# Update braille also when tethered to review, and review position
+		# if review follows caret.
+		if not eventHandler.isPendingEvents("caret, self"):
+			eventHandler.queueEvent("caret", self)
 
 	def event_UIA_notification(self, activityId=None, **kwargs):
 		# #10851: in recent Word 365 releases, UIA notification will cause NVDA to announce edit functions
 		# such as "delete back word" when Control+Backspace is pressed.
 		if activityId == "AccSN2":  # Delete activity ID
 			return
 		super(WordDocument, self).event_UIA_notification(**kwargs)
+		# Try to ensure that braille is updated when UIA is not used and
+		# ctrl-v, ctrl-x or ctrl-z is pressed.
+		# Using getFocusObject because self does not work always.
+		if (
+			not UIAHandler.shouldUseUIAInMSWord(self.appModule)
+			and not eventHandler.isPendingEvents("caret", api.getFocusObject())
+		):
+			eventHandler.queueEvent("caret", api.getFocusObject())
+			log.debug(f"{self.appModule.appName}: enqueued caret event")
 
 	# The following overide of the EditableText._caretMoveBySentenceHelper private method
 	# Falls back to the MS Word object model if available.

user_docs/en/changes.t2t

@@ -18,6 +18,9 @@ What's New in NVDA
 == Bug Fixes ==
 - Reporting of object shortcut keys has been improved. (#10807)
 - The SAPI4 synthesizer now properly supports volume, rate and pitch changes embedded in speech. (#15271)
+- Braille is updated when control+v, control+x, control+z or backspace is pressed.
+It is also updated when typing text, and braille is tethered to review and
+review follows caret. (#3276)
 -
 
 == Changes for Developers ==