diff --git a/src/parallel b/src/parallel
index 63db0374..a589caba 100755
--- a/src/parallel
+++ b/src/parallel
@@ -2654,7 +2654,7 @@ sub check_invalid_option_combinations() {
 
 sub init_globals() {
     # Defaults:
-    $Global::version = 20220530;
+    $Global::version = 20220605;
     $Global::progname = 'parallel';
     $::name = "GNU Parallel";
     $Global::infinity = 2**31;
@@ -2731,7 +2731,11 @@ sub init_globals() {
 	 # Bash ${a%%def}
 	 '{%%([^}]+?)}' => 's/$$1$//;',
 	 # Bash ${a/def/ghi} ${a/def/}
-	 '{/([^}/]+?)/([^}]*?)}' => 's/$$1/$$2/;',
+	 '{/([^#%}/]+?)/([^}]*?)}' => 's/$$1/$$2/;',
+	 # Bash ${a/#def/ghi} ${a/#def/}
+	 '{/#([^}]+?)/([^}]*?)}' => 's/^$$1/$$2/g;',
+	 # Bash ${a/%def/ghi} ${a/%def/}
+	 '{/%([^}]+?)/([^}]*?)}' => 's/$$1$/$$2/g;',
 	 # Bash ${a//def/ghi} ${a//def/}
 	 '{//([^}]+?)/([^}]*?)}' => 's/$$1/$$2/g;',
 	 # Bash ${a^a}
diff --git a/testsuite/tests-to-run/parallel-local-30s.sh b/testsuite/tests-to-run/parallel-local-30s.sh
index 022a492a..7bb4c2c4 100755
--- a/testsuite/tests-to-run/parallel-local-30s.sh
+++ b/testsuite/tests-to-run/parallel-local-30s.sh
@@ -516,6 +516,16 @@ par_plus_dyn_repl() {
     parallel --plus echo '{,,A}' ::: "$myvar"
     parallel --plus echo '{2,,A}' ::: "wrong" ::: "$myvar" ::: "wrong"
     parallel --plus echo '{-2,,A}' ::: "wrong" ::: "$myvar" ::: "wrong"
+
+    myvar=abcabcdefdef
+    echo $myvar ${myvar/#abc/ABC}
+    echo $myvar | parallel --plus echo {} {/#abc/ABC}
+    echo $myvar ${myvar/%def/DEF}
+    echo $myvar | parallel --plus echo {} {/%def/DEF}
+    echo $myvar ${myvar/#abc/}
+    echo $myvar | parallel --plus echo {} {/#abc/}
+    echo $myvar ${myvar/%def/}
+    echo $myvar | parallel --plus echo {} {/%def/}
 }
 
 par_keeporder_roundrobin() {
diff --git a/testsuite/wanted-results/parallel-local-30s b/testsuite/wanted-results/parallel-local-30s
index b2b0f50a..40d871c1 100644
--- a/testsuite/wanted-results/parallel-local-30s
+++ b/testsuite/wanted-results/parallel-local-30s
@@ -1668,6 +1668,14 @@ par_plus_dyn_repl	abcaaadef
 par_plus_dyn_repl	abcaaadef
 par_plus_dyn_repl	abcaaadef
 par_plus_dyn_repl	abcaaadef
+par_plus_dyn_repl	abcabcdefdef ABCabcdefdef
+par_plus_dyn_repl	abcabcdefdef ABCabcdefdef
+par_plus_dyn_repl	abcabcdefdef abcabcdefDEF
+par_plus_dyn_repl	abcabcdefdef abcabcdefDEF
+par_plus_dyn_repl	abcabcdefdef abcdefdef
+par_plus_dyn_repl	abcabcdefdef abcdefdef
+par_plus_dyn_repl	abcabcdefdef abcabcdef
+par_plus_dyn_repl	abcabcdefdef abcabcdef
 par_race_condition1	### Test race condition on 8 CPU (my laptop)
 par_race_condition1	1
 par_race_condition1	2