patch 7.4.1561
Problem: Missing update to proto file.
Solution: Change the proto file.
diff --git a/src/proto/channel.pro b/src/proto/channel.pro
index eb50b2f..be11a3a 100644
--- a/src/proto/channel.pro
+++ b/src/proto/channel.pro
@@ -12,7 +12,7 @@
void channel_set_pipes(channel_T *channel, sock_T in, sock_T out, sock_T err);
void channel_set_job(channel_T *channel, job_T *job, jobopt_T *options);
void channel_set_options(channel_T *channel, jobopt_T *opt);
-void channel_set_req_callback(channel_T *channel, int part, char_u *callback, int id);
+void channel_set_req_callback(channel_T *channel, int part, char_u *callback, partial_T *partial, int id);
void channel_write_in(channel_T *channel);
void channel_write_new_lines(buf_T *buf);
char_u *channel_get(channel_T *channel, int part);
diff --git a/src/version.c b/src/version.c
index 52e2b80..501287d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -744,6 +744,8 @@
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
+ 1561,
+/**/
1560,
/**/
1559,