merge revision(s) f18a0b7654d471101b207e7fe553e12a25398e45,77e1b477297a48e285d34b21e8d30ab4b46bf90c,c483aa8394fc26e341666db66938b1d6fc2cbb8e,f2e39e5fed498b51ae914ed42ec51ae578330583,6aaa1c4d09249baae93d5bb7fba585be420c4fee,923b3652247aa17ac99dc45cb1cd0654fa08d976,950c7a12efa19d73bed10d377368a50664cae32c,69ce9e4187589335124077029496ee293d4e9189,ddb87396349fa4699153d5c4c7569c2e0186adfc,09e7a0c4a4fba18e3308e4f8cb4b8b5b52b41d20,298d65b1e4f3019af7fc9b905390b56736f5fd0e,2f3edf28f3a251bac2cf3b47b46b372faac71e8e:

	[ruby/rdoc] Follow-up rubygems

	Use test-unit assertions instead of minitest.

	https://github.com/ruby/rdoc/commit/d6a6209d7f
	---
	 test/rdoc/test_rdoc_rubygems_hook.rb | 18 ++++++++++++------
	 1 file changed, 12 insertions(+), 6 deletions(-)

	[ruby/rdoc] Add an alias for test-unit with older versions of
	 RubyGems

	https://github.com/ruby/rdoc/commit/b8d68fdd87
	---
	 test/rdoc/test_rdoc_rubygems_hook.rb | 3 +++
	 1 file changed, 3 insertions(+)

	[ruby/rdoc] Rwrite test-case for rubygems_hook without Gem::TestCase

	https://github.com/ruby/rdoc/commit/f8d1087ce5
	---
	 test/rdoc/test_rdoc_rubygems_hook.rb | 38 +++++++++++++++++++-----------------
	 1 file changed, 20 insertions(+), 18 deletions(-)

	[ruby/rdoc] Update test/rdoc/test_rdoc_rubygems_hook.rb

	https://github.com/ruby/rdoc/commit/fb264c4cc4

	Co-authored-by: Nobuyoshi Nakada <nobu@ruby-lang.org>
	---
	 test/rdoc/test_rdoc_rubygems_hook.rb | 4 ++++
	 1 file changed, 4 insertions(+)

	[ruby/rdoc] Use pend instead of skip

	https://github.com/ruby/rdoc/commit/8460a36d84
	---
	 test/rdoc/test_rdoc_rubygems_hook.rb | 10 +++++-----
	 1 file changed, 5 insertions(+), 5 deletions(-)

	Close UserInteraction for tests to fix leaked file descriptors

	---
	 test/rdoc/test_rdoc_rubygems_hook.rb | 2 ++
	 1 file changed, 2 insertions(+)

	Make temporary directory under the regular location

	---
	 test/rdoc/test_rdoc_rubygems_hook.rb | 6 ++----
	 1 file changed, 2 insertions(+), 4 deletions(-)

	Clear default configurations

	Remove environment variables which can affect the default
	configurations.
	---
	 test/rdoc/test_rdoc_rubygems_hook.rb | 13 +++++++++++++
	 1 file changed, 13 insertions(+)

	Clear rdoc options in the global rubygems configuration

	---
	 test/rdoc/test_rdoc_rubygems_hook.rb | 2 ++
	 1 file changed, 2 insertions(+)

	Dispose the global rubygems configuration wholely

	---
	 test/rdoc/test_rdoc_rubygems_hook.rb | 2 +-
	 1 file changed, 1 insertion(+), 1 deletion(-)

	Discard RDOCOPT environment variable to make tests stable

	---
	 test/rdoc/test_rdoc_rubygems_hook.rb | 1 +
	 1 file changed, 1 insertion(+)

	[ruby/rdoc] Prefer omit to pend

	These conditions are not temporary, rather platform dependent.

	https://github.com/ruby/rdoc/pull/815#discussion_r654660411

	https://github.com/ruby/rdoc/commit/92545fa250
	---
	 test/rdoc/test_rdoc_rubygems_hook.rb | 10 +++++-----
	 1 file changed, 5 insertions(+), 5 deletions(-)

1 files changed, 1 insertions, 1 deletions

diff --git a/version.h b/version.h
index a34639b6ea..3f82a9480f 100644
--- a/version.h
+++ b/version.h
@@ -12,7 +12,7 @@
 # define RUBY_VERSION_MINOR RUBY_API_VERSION_MINOR
 #define RUBY_VERSION_TEENY 4
 #define RUBY_RELEASE_DATE RUBY_RELEASE_YEAR_STR"-"RUBY_RELEASE_MONTH_STR"-"RUBY_RELEASE_DAY_STR
-#define RUBY_PATCHLEVEL 172
+#define RUBY_PATCHLEVEL 173
 
 #define RUBY_RELEASE_YEAR 2022
 #define RUBY_RELEASE_MONTH 2