diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index e4bf25f..bdcb00f 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -1177,8 +1177,6 @@
 				 Unix: "/tmp/*,$TMPDIR/*,$TMP/*,$TEMP/*"
 				 Mac: "/private/tmp/*,$TMPDIR/*,$TMP/*,$TEMP/*")
 			global
-			{not available when compiled without the |+wildignore|
-			feature}
 	A list of file patterns.  When one of the patterns matches with the
 	name of the file which is written, no backup file is created.  Both
 	the specified file name and the full path name of the file are used.
@@ -9024,8 +9022,6 @@
 						*'wildignore'* *'wig'*
 'wildignore' 'wig'	string	(default "")
 			global
-			{not available when compiled without the |+wildignore|
-			feature}
 	A list of file patterns.  A file that matches with one of these
 	patterns is ignored when expanding |wildcards|, completing file or
 	directory names, and influences the result of |expand()|, |glob()| and
@@ -9156,8 +9152,6 @@
 						*'wildoptions'* *'wop'*
 'wildoptions' 'wop'	string	(default "")
 			global
-			{not available when compiled without the |+wildignore|
-			feature}
 	A list of words that change how |cmdline-completion| is done.
 	The following values are supported:
 	  fuzzy		Use |fuzzy-matching| to find completion matches. When
diff --git a/runtime/doc/various.txt b/runtime/doc/various.txt
index 92403d3..528901d 100644
--- a/runtime/doc/various.txt
+++ b/runtime/doc/various.txt
@@ -490,7 +490,7 @@
 T  *+visualextra*	extra Visual mode commands |blockwise-operators|
 T  *+vreplace*		|gR| and |gr|
    *+vtp*		on MS-Windows console: support for 'termguicolors'
-N  *+wildignore*	|'wildignore'|
+T  *+wildignore*	|'wildignore'|  Always enabled since 9.0.0278
 N  *+wildmenu*		|'wildmenu'|
 T  *+windows*		more than one window; Always enabled since 8.0.1118.
 m  *+writebackup*	|'writebackup'| is default on
diff --git a/src/bufwrite.c b/src/bufwrite.c
index 5db8f29..b283b5e 100644
--- a/src/bufwrite.c
+++ b/src/bufwrite.c
@@ -1136,10 +1136,8 @@
 
     // If 'backupskip' is not empty, don't make a backup for some files.
     dobackup = (p_wb || p_bk || *p_pm != NUL);
-#ifdef FEAT_WILDIGN
     if (dobackup && *p_bsk != NUL && match_file_list(p_bsk, sfname, ffname))
 	dobackup = FALSE;
-#endif
 
     // Save the value of got_int and reset it.  We don't want a previous
     // interruption cancel writing, only hitting CTRL-C while writing should
diff --git a/src/evalfunc.c b/src/evalfunc.c
index b3084f3..a41e675 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -6260,13 +6260,7 @@
 		0
 #endif
 		},
-	{"wildignore",
-#ifdef FEAT_WILDIGN
-		1
-#else
-		0
-#endif
-		},
+	{"wildignore", 1},
 	{"wildmenu",
 #ifdef FEAT_WILDMENU
 		1
diff --git a/src/feature.h b/src/feature.h
index bffd80a..529ada5 100644
--- a/src/feature.h
+++ b/src/feature.h
@@ -118,6 +118,7 @@
  * +textobjects		Text objects: "vaw", "das", etc.
  * +file_in_path	"gf" and "<cfile>" commands.
  * +path_extra		up/downwards searching in 'path' and 'tags'.
+ * +wildignore		'wildignore' and 'backupskip' options
  *
  * Obsolete:
  * +tag_old_static	Old style static tags: "file:tag  file  ..".
@@ -285,7 +286,7 @@
 /*
  * +timers		timer_start()
  */
-#if defined(FEAT_RELTIME) && (defined(UNIX) || defined(MSWIN) || defined(VMS) )
+#if defined(FEAT_RELTIME) && (defined(UNIX) || defined(MSWIN) || defined(VMS))
 # define FEAT_TIMERS
 #endif
 
@@ -338,14 +339,6 @@
 #endif
 
 /*
- * +wildignore		'wildignore' and 'backupskip' options
- *			Needed for Unix to make "crontab -e" work.
- */
-#if defined(FEAT_NORMAL) || defined(UNIX)
-# define FEAT_WILDIGN
-#endif
-
-/*
  * +wildmenu		'wildmenu' option
  */
 #if defined(FEAT_NORMAL)
diff --git a/src/fileio.c b/src/fileio.c
index 8437b2b..701521a 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -312,7 +312,9 @@
 	curbuf->b_op_start = orig_start;
 
 	if (flags & READ_NOFILE)
-	    return NOTDONE;  // so that BufEnter can be triggered
+	    // Return NOTDONE instead of FAIL so that BufEnter can be triggered
+	    // and other operations don't fail.
+	    return NOTDONE;
     }
 
     if ((shortmess(SHM_OVER) || curbuf->b_help) && p_verbose == 0)
@@ -5402,7 +5404,6 @@
     return result;
 }
 
-#if defined(FEAT_WILDIGN) || defined(PROTO)
 /*
  * Return TRUE if a file matches with a pattern in "list".
  * "list" is a comma-separated list of patterns, like 'wildignore'.
@@ -5436,7 +5437,6 @@
     }
     return FALSE;
 }
-#endif
 
 /*
  * Convert the given pattern "pat" which has shell style wildcards in it, into
diff --git a/src/filepath.c b/src/filepath.c
index f61603f..646a25e 100644
--- a/src/filepath.c
+++ b/src/filepath.c
@@ -3136,7 +3136,6 @@
     if ((flags & EW_KEEPALL) || retval == FAIL)
 	return retval;
 
-#ifdef FEAT_WILDIGN
     /*
      * Remove names that match 'wildignore'.
      */
@@ -3172,7 +3171,6 @@
 	    return FAIL;
 	}
     }
-#endif
 
     /*
      * Move the names where 'suffixes' match to the end.
diff --git a/src/option.c b/src/option.c
index 05e0527..3e1473f 100644
--- a/src/option.c
+++ b/src/option.c
@@ -126,17 +126,16 @@
 	set_string_default_esc("sh", p, TRUE);
 #endif
 
-#ifdef FEAT_WILDIGN
     /*
      * Set the default for 'backupskip' to include environment variables for
      * temp files.
      */
     {
-# ifdef UNIX
+#ifdef UNIX
 	static char	*(names[4]) = {"", "TMPDIR", "TEMP", "TMP"};
-# else
+#else
 	static char	*(names[3]) = {"TMPDIR", "TEMP", "TMP"};
-# endif
+#endif
 	int		len;
 	garray_T	ga;
 	int		mustfree;
@@ -148,15 +147,15 @@
 	for (n = 0; n < (long)ARRAY_LENGTH(names); ++n)
 	{
 	    mustfree = FALSE;
-# ifdef UNIX
+#ifdef UNIX
 	    if (*names[n] == NUL)
-#  ifdef MACOS_X
+# ifdef MACOS_X
 		p = (char_u *)"/private/tmp";
-#  else
+# else
 		p = (char_u *)"/tmp";
-#  endif
-	    else
 # endif
+	    else
+#endif
 		p = vim_getenv((char_u *)names[n], &mustfree);
 	    if (p != NULL && *p != NUL)
 	    {
@@ -186,7 +185,6 @@
 	    vim_free(ga.ga_data);
 	}
     }
-#endif
 
     /*
      * 'maxmemtot' and 'maxmem' may have to be adjusted for available memory
diff --git a/src/option.h b/src/option.h
index d40dcb5..aeb80ce 100644
--- a/src/option.h
+++ b/src/option.h
@@ -451,9 +451,7 @@
 #define BO_TERM		0x40000
 #define BO_WILD		0x80000
 
-#ifdef FEAT_WILDIGN
 EXTERN char_u	*p_bsk;		// 'backupskip'
-#endif
 #ifdef FEAT_CRYPT
 EXTERN char_u	*p_cm;		// 'cryptmethod'
 #endif
@@ -1061,9 +1059,7 @@
 #define FEAT_WAK
 EXTERN char_u	*p_wak;		// 'winaltkeys'
 #endif
-#ifdef FEAT_WILDIGN
 EXTERN char_u	*p_wig;		// 'wildignore'
-#endif
 EXTERN int	p_wiv;		// 'weirdinvert'
 EXTERN char_u	*p_ww;		// 'whichwrap'
 EXTERN long	p_wc;		// 'wildchar'
diff --git a/src/optiondefs.h b/src/optiondefs.h
index de63ceb..099ad2e 100644
--- a/src/optiondefs.h
+++ b/src/optiondefs.h
@@ -427,13 +427,8 @@
 #endif
 					    (char_u *)0L} SCTX_INIT},
     {"backupskip",  "bsk",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
-#ifdef FEAT_WILDIGN
 			    (char_u *)&p_bsk, PV_NONE,
 			    {(char_u *)"", (char_u *)0L}
-#else
-			    (char_u *)NULL, PV_NONE,
-			    {(char_u *)0L, (char_u *)0L}
-#endif
 			    SCTX_INIT},
     {"balloondelay","bdlay",P_NUM|P_VI_DEF,
 #ifdef FEAT_BEVAL
@@ -2757,11 +2752,7 @@
 			    (char_u *)&p_wcm, PV_NONE,
 			    {(char_u *)0L, (char_u *)0L} SCTX_INIT},
     {"wildignore",  "wig",  P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
-#ifdef FEAT_WILDIGN
 			    (char_u *)&p_wig, PV_NONE,
-#else
-			    (char_u *)NULL, PV_NONE,
-#endif
 			    {(char_u *)"", (char_u *)0L} SCTX_INIT},
     {"wildignorecase", "wic", P_BOOL|P_VI_DEF,
 			    (char_u *)&p_wic, PV_NONE,
diff --git a/src/version.c b/src/version.c
index 1fd798b..9088962 100644
--- a/src/version.c
+++ b/src/version.c
@@ -655,11 +655,7 @@
 	"-vtp",
 # endif
 #endif
-#ifdef FEAT_WILDIGN
 	"+wildignore",
-#else
-	"-wildignore",
-#endif
 #ifdef FEAT_WILDMENU
 	"+wildmenu",
 #else
@@ -724,6 +720,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    278,
+/**/
     277,
 /**/
     276,