diff --git a/runtime/filetype.vim b/runtime/filetype.vim
index 98e64a9..87eac41 100644
--- a/runtime/filetype.vim
+++ b/runtime/filetype.vim
@@ -1,7 +1,7 @@
 " Vim support file to detect file types
 "
 " Maintainer:	The Vim Project <https://github.com/vim/vim>
-" Last Change:	2025 Apr 21
+" Last Change:	2025 Apr 24
 " Former Maintainer:	Bram Moolenaar <Bram@vim.org>
 
 " Listen very carefully, I will say this only once
@@ -2061,9 +2061,9 @@
 au BufNewFile,BufRead *.pyx,*.pyx+,*.pxd,*.pxi	setf pyrex
 
 " Python, Python Shell Startup and Python Stub Files
-" Quixote (Python-based web framework)
+" Quixote (Python-based web framework) and IPython
 au BufNewFile,BufRead *.py,*.pyw,.pythonstartup,.pythonrc,.python_history,.jline-jython.history	setf python
-au BufNewFile,BufRead *.ptl,*.pyi,SConstruct		   setf python
+au BufNewFile,BufRead *.ipy,*.ptl,*.pyi,SConstruct		   setf python
 
 " QL
 au BufRead,BufNewFile *.ql,*.qll		setf ql
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index dc653f5..260c3ee 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -632,7 +632,7 @@
     pymanifest: ['MANIFEST.in'],
     pyret: ['file.arr'],
     pyrex: ['file.pyx', 'file.pxd', 'file.pxi', 'file.pyx+'],
-    python: ['file.py', 'file.pyw', '.pythonstartup', '.pythonrc', '.python_history', '.jline-jython.history', 'file.ptl', 'file.pyi', 'SConstruct'],
+    python: ['file.py', 'file.pyw', '.pythonstartup', '.pythonrc', '.python_history', '.jline-jython.history', 'file.ptl', 'file.pyi', 'SConstruct', 'file.ipy'],
     ql: ['file.ql', 'file.qll'],
     qml: ['file.qml', 'file.qbs'],
     qmldir: ['qmldir'],
diff --git a/src/version.c b/src/version.c
index a07561e..cd66bef 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1343,
+/**/
     1342,
 /**/
     1341,