5 files changed, 27 insertions, 15 deletions
diff --git a/ext/date/date_core.c b/ext/date/date_core.c
index 44dbf4fbcf..dbee067f6b 100644
--- a/ext/date/date_core.c
+++ b/ext/date/date_core.c
@@ -1599,7 +1599,7 @@ m_ajd(union DateData *x)
 
     if (simple_dat_p(x)) {
 	r = m_real_jd(x);
-	if (FIXNUM_P(r) && FIX2LONG(r) <= (FIXNUM_MAX / 2)) {
+	if (FIXNUM_P(r) && FIX2LONG(r) <= (FIXNUM_MAX / 2) && FIX2LONG(r) >= (FIXNUM_MIN + 1) / 2) {
 	    long ir = FIX2LONG(r);
 	    ir = ir * 2 - 1;
 	    return rb_rational_new2(LONG2FIX(ir), INT2FIX(2));
@@ -6936,13 +6936,24 @@ d_lite_eql_p(VALUE self, VALUE other)
 static VALUE
 d_lite_hash(VALUE self)
 {
-    st_index_t v, h[4];
+    st_index_t v, h[5];
+    VALUE nth;
 
     get_d1(self);
-    h[0] = m_nth(dat);
-    h[1] = m_jd(dat);
-    h[2] = m_df(dat);
-    h[3] = m_sf(dat);
+    nth = m_nth(dat);
+
+    if (FIXNUM_P(nth)) {
+        h[0] = 0;
+        h[1] = (st_index_t)nth;
+    } else {
+        h[0] = 1;
+        h[1] = (st_index_t)FIX2LONG(rb_hash(nth));
+    }
+
+    h[2] = m_jd(dat);
+    h[3] = m_df(dat);
+    h[4] = m_sf(dat);
+
     v = rb_memhash(h, sizeof(h));
     return ST2FIX(v);
 }
diff --git a/ext/json/lib/json/common.rb b/ext/json/lib/json/common.rb
index 6393a6df55..486ec62a58 100644
--- a/ext/json/lib/json/common.rb
+++ b/ext/json/lib/json/common.rb
@@ -268,7 +268,7 @@ module JSON
   # to string interpolation.
   #
   # Note: no validation is performed on the provided string. It is the
-  # responsability of the caller to ensure the string contains valid JSON.
+  # responsibility of the caller to ensure the string contains valid JSON.
   Fragment = Struct.new(:json) do
     def initialize(json)
       unless string = String.try_convert(json)
diff --git a/ext/objspace/objspace.c b/ext/objspace/objspace.c
index 754c998ac6..5e183e78ed 100644
--- a/ext/objspace/objspace.c
+++ b/ext/objspace/objspace.c
@@ -504,7 +504,7 @@ count_imemo_objects(int argc, VALUE *argv, VALUE self)
         INIT_IMEMO_TYPE_ID(imemo_callinfo);
         INIT_IMEMO_TYPE_ID(imemo_callcache);
         INIT_IMEMO_TYPE_ID(imemo_constcache);
-        INIT_IMEMO_TYPE_ID(imemo_class_fields);
+        INIT_IMEMO_TYPE_ID(imemo_fields);
 #undef INIT_IMEMO_TYPE_ID
     }
 
diff --git a/ext/objspace/objspace_dump.c b/ext/objspace/objspace_dump.c
index 83b434c3a1..80732d0282 100644
--- a/ext/objspace/objspace_dump.c
+++ b/ext/objspace/objspace_dump.c
@@ -394,9 +394,10 @@ dump_object(VALUE obj, struct dump_config *dc)
 
     dc->cur_obj = obj;
     dc->cur_obj_references = 0;
-    if (BUILTIN_TYPE(obj) == T_NODE || BUILTIN_TYPE(obj) == T_IMEMO) {
+    if (BUILTIN_TYPE(obj) == T_NODE || (BUILTIN_TYPE(obj) == T_IMEMO && !IMEMO_TYPE_P(obj, imemo_fields))) {
         dc->cur_obj_klass = 0;
-    } else {
+    }
+    else {
         dc->cur_obj_klass = RBASIC_CLASS(obj);
     }
 
@@ -414,8 +415,8 @@ dump_object(VALUE obj, struct dump_config *dc)
     dump_append(dc, obj_type(obj));
     dump_append(dc, "\"");
 
-    if (BUILTIN_TYPE(obj) != T_IMEMO) {
-        size_t shape_id = rb_obj_shape_id(obj);
+    if (BUILTIN_TYPE(obj) != T_IMEMO || IMEMO_TYPE_P(obj, imemo_fields)) {
+        size_t shape_id = rb_obj_shape_id(obj) & SHAPE_ID_OFFSET_MASK;
         dump_append(dc, ", \"shape_id\":");
         dump_append_sizet(dc, shape_id);
     }
diff --git a/ext/win32/lib/win32/registry.rb b/ext/win32/lib/win32/registry.rb
index d0cbb6afcf..8e2c8b2e1a 100644
--- a/ext/win32/lib/win32/registry.rb
+++ b/ext/win32/lib/win32/registry.rb
@@ -372,7 +372,7 @@ For detail, see the MSDN[http://msdn.microsoft.com/library/en-us/sysinfo/base/pr
     # Replace %\w+% into the environment value of what is contained between the %'s
     # This method is used for REG_EXPAND_SZ.
     #
-    # For detail, see expandEnvironmentStrings[http://msdn.microsoft.com/library/en-us/sysinfo/base/expandenvironmentstrings.asp] \Win32 \API.
+    # For detail, see expandEnvironmentStrings[https://learn.microsoft.com/en-us/windows/win32/api/processenv/nf-processenv-expandenvironmentstringsa] \Win32 \API.
     #
     def self.expand_environ(str)
       str.gsub(Regexp.compile("%([^%]+)%".encode(str.encoding))) {
@@ -487,7 +487,7 @@ For detail, see the MSDN[http://msdn.microsoft.com/library/en-us/sysinfo/base/pr
       ObjectSpace.define_finalizer self, @@final.call(@hkeyfinal)
     end
 
-    # Win32::Registry object of parent key, or nil if predefeined key.
+    # Win32::Registry object of parent key, or nil if predefined key.
     attr_reader :parent
     # Same as subkey value of Registry.open or
     # Registry.create method.
@@ -571,7 +571,7 @@ For detail, see the MSDN[http://msdn.microsoft.com/library/en-us/sysinfo/base/pr
     # For each value it yields key, type and data.
     #
     # key is a String which contains name of key.
-    # type is a type contant kind of Win32::Registry::REG_*
+    # type is a type constant kind of Win32::Registry::REG_*
     # data is the value of this key.
     #
     def each_value