add NEWS item about new emacs tagging interface.

This is fairly important to mention, since it represents a user
interface change.

1 files changed, 13 insertions, 1 deletions

diff --git a/NEWS b/NEWS
index f987811..69a7203 100644
--- a/NEWS
+++ b/NEWS
@@ -15,7 +15,7 @@ JSON reply format
 
   "notmuch reply" can now produce JSON output that contains the headers
   for a reply message and full information about the original message
-  begin replied to. This allows MUAs to create replies intelligtently.
+  begin replied to. This allows MUAs to create replies intelligently.
   For example, an MUA that can parse HTML might quote HTML parts.
 
   Calling notmuch reply with --format=json imposes the restriction that
@@ -60,6 +60,18 @@ Listing configuration items
 Emacs Interface
 ---------------
 
+Changes to tagging interface
+
+  The user-facing tagging functions in the Emacs interface have been
+  normalized across all notmuch modes.  The tagging functions are now
+  'notmuch-search-tag' in search-mode, and 'notmuch-show-tag' in
+  show-mode.  They accept a string representing a single tag change,
+  or a list of tag changes.  See 'M-x describe-function notmuch-tag'
+  for more information.
+
+  NOTE: This breaks compatibility with old tagging functions, so user
+  may need to update in custom configurations.
+
 Reply improvement using the JSON format
 
   Emacs now uses the JSON reply format to create replies. It obeys