autoload/lsp/diag.vim | 5 +++++
 doc/lsp.txt           | 6 ++++++

diff --git a/autoload/lsp/diag.vim b/autoload/lsp/diag.vim
index bd26515ebdf751a44a566f4745558c9dfd112f24..7be31eb7271cd4de8224f3519bb074e31d9f129c 100644
--- a/autoload/lsp/diag.vim
+++ b/autoload/lsp/diag.vim
@@ -103,6 +103,11 @@   endfor
 
   lspserver.diagsMap->extend({[$'{bnr}']: diag_by_lnum})
   ProcessNewDiags(lspserver, bnr)
+
+  # Notify user scripts that diags has been updated
+  if exists('#User#LspDiagsUpdated')
+    doautocmd <nomodeline> User LspDiagsUpdated
+  endif
 enddef
 
 # get the count of error in the current buffer
diff --git a/doc/lsp.txt b/doc/lsp.txt
index d885cc02a72ff28dc328687829d173d5edfdafb0..c8379644a9181432f1e1e7493bf4b50c018236c5 100644
--- a/doc/lsp.txt
+++ b/doc/lsp.txt
@@ -705,4 +705,10 @@ LspAttached			A |User| autocommand fired when the LSP client
 				attaches to a buffer. Can be used to configure
 				buffer-local mappings or options.
 
+							*LspDiagsUpdated*
+LspDiagsUpdated			A |User| autocommand invoked when new
+				diagnostics are received from the language
+				server.  This is invoked after the LSP client
+				has processed the diagnostics.
+
 vim:tw=78:ts=8:noet:ft=help:norl: