diff -Naur a/ext/intl/breakiterator/codepointiterator_internal.cpp b/ext/intl/breakiterator/codepointiterator_internal.cpp
--- a/ext/intl/breakiterator/codepointiterator_internal.cpp	2022-02-12 10:06:56.410352885 +0100
+++ b/ext/intl/breakiterator/codepointiterator_internal.cpp	2022-02-12 10:07:41.236949927 +0100
@@ -74,7 +74,11 @@
 	clearCurrentCharIter();
 }
 
+#if U_ICU_VERSION_MAJOR_NUM >= 70
+bool CodePointBreakIterator::operator==(const BreakIterator& that) const
+#else
 UBool CodePointBreakIterator::operator==(const BreakIterator& that) const
+#endif
 {
 	if (typeid(*this) != typeid(that)) {
 		return FALSE;
diff -Naur a/ext/intl/breakiterator/codepointiterator_internal.h b/ext/intl/breakiterator/codepointiterator_internal.h
--- a/ext/intl/breakiterator/codepointiterator_internal.h	2022-02-12 10:06:56.410352885 +0100
+++ b/ext/intl/breakiterator/codepointiterator_internal.h	2022-02-12 10:07:41.236949927 +0100
@@ -39,7 +39,11 @@
 
 		virtual ~CodePointBreakIterator();
 
+#if U_ICU_VERSION_MAJOR_NUM >= 70
+		virtual bool operator==(const BreakIterator& that) const;
+#else
 		virtual UBool operator==(const BreakIterator& that) const;
+#endif
 
 		virtual CodePointBreakIterator* clone(void) const;
 
diff -Naur a/ext/intl/locale/locale_methods.c b/ext/intl/locale/locale_methods.c
--- a/ext/intl/locale/locale_methods.c	2019-01-09 10:54:13.000000000 +0100
+++ b/ext/intl/locale/locale_methods.c	2022-02-12 10:08:21.679684186 +0100
@@ -1324,7 +1324,7 @@
 		if( token && (token==cur_lang_tag) ){
 			/* check if the char. after match is SEPARATOR */
 			chrcheck = token + (strlen(cur_loc_range));
-			if( isIDSeparator(*chrcheck) || isEndOfTag(*chrcheck) ){
+			if( isIDSeparator(*chrcheck) || isKeywordSeparator(*chrcheck) || isEndOfTag(*chrcheck) ){
 				if( cur_lang_tag){
 					efree( cur_lang_tag );
 				}