merge revision(s) 7c0230b05d0978958f89434c84ddd9c82419c1a5,552728a23aeab0df598b356b19a573259e297d14,49af9012a20a824542cf588e55e5488895553e09: [Backport #18184]

	Check the entire name as `ruby2_keywords_flag` [Bug #18184]

	---
	 marshal.c                 | 2 +-
	 test/ruby/test_marshal.rb | 8 +++++++-
	 2 files changed, 8 insertions(+), 2 deletions(-)

	Check the encoding of `ruby2_keywords_flag` [Bug #18184]

	---
	 marshal.c                 | 1 +
	 test/ruby/test_marshal.rb | 6 +++++-
	 2 files changed, 6 insertions(+), 1 deletion(-)

	Prohibit invalid encoding symbols [Bug #18184]

	---
	 marshal.c                 |  8 +++++++-
	 test/ruby/test_marshal.rb | 10 +++++++---
	 2 files changed, 14 insertions(+), 4 deletions(-)

1 files changed, 1 insertions, 1 deletions

diff --git a/version.h b/version.h
index 43799945f5..99ed4691ce 100644
--- a/version.h
+++ b/version.h
@@ -12,7 +12,7 @@
 # define RUBY_VERSION_MINOR RUBY_API_VERSION_MINOR
 #define RUBY_VERSION_TEENY 3
 #define RUBY_RELEASE_DATE RUBY_RELEASE_YEAR_STR"-"RUBY_RELEASE_MONTH_STR"-"RUBY_RELEASE_DAY_STR
-#define RUBY_PATCHLEVEL 139
+#define RUBY_PATCHLEVEL 140
 
 #define RUBY_RELEASE_YEAR 2021
 #define RUBY_RELEASE_MONTH 10