diff --git a/RSXML2.xcodeproj/project.pbxproj b/RSXML2.xcodeproj/project.pbxproj
index da80a04..b308fa4 100644
--- a/RSXML2.xcodeproj/project.pbxproj
+++ b/RSXML2.xcodeproj/project.pbxproj
@@ -417,7 +417,7 @@
 			isa = PBXProject;
 			attributes = {
 				LastSwiftUpdateCheck = 0700;
-				LastUpgradeCheck = 1130;
+				LastUpgradeCheck = 1200;
 				ORGANIZATIONNAME = relikd;
 				TargetAttributes = {
 					84AD0C041E11B7D200B38510 = {
@@ -439,6 +439,7 @@
 			hasScannedForEncodings = 0;
 			knownRegions = (
 				en,
+				Base,
 			);
 			mainGroup = 84F22C031B52DDEA000060CE;
 			productRefGroup = 84F22C0E1B52DDEA000060CE /* Products */;
@@ -628,6 +629,7 @@
 				CLANG_WARN_INT_CONVERSION = YES;
 				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_IMPLICIT_CONVERSION = YES;
@@ -702,6 +704,7 @@
 				CLANG_WARN_INT_CONVERSION = YES;
 				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_IMPLICIT_CONVERSION = YES;
diff --git a/RSXML2.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/RSXML2.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/RSXML2.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/RSXML2.xcodeproj/xcshareddata/xcschemes/RSXML2.xcscheme b/RSXML2.xcodeproj/xcshareddata/xcschemes/RSXML2.xcscheme
index 732c7d4..e378f08 100644
--- a/RSXML2.xcodeproj/xcshareddata/xcschemes/RSXML2.xcscheme
+++ b/RSXML2.xcodeproj/xcshareddata/xcschemes/RSXML2.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1130"
+   LastUpgradeVersion = "1200"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/RSXML2.xcodeproj/xcshareddata/xcschemes/RSXML2iOS.xcscheme b/RSXML2.xcodeproj/xcshareddata/xcschemes/RSXML2iOS.xcscheme
index 6de7801..187eb45 100644
--- a/RSXML2.xcodeproj/xcshareddata/xcschemes/RSXML2iOS.xcscheme
+++ b/RSXML2.xcodeproj/xcshareddata/xcschemes/RSXML2iOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1130"
+   LastUpgradeVersion = "1200"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/RSXML2/RSAtomParser.h b/RSXML2/RSAtomParser.h
index 7c01dd1..2450865 100644
--- a/RSXML2/RSAtomParser.h
+++ b/RSXML2/RSAtomParser.h
@@ -22,7 +22,7 @@
 //  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 //  SOFTWARE.
 
-#import "RSFeedParser.h"
+#import <RSXML2/RSFeedParser.h>
 
 // <feed> <entry>
 // https://validator.w3.org/feed/docs/rfc4287.html
diff --git a/RSXML2/RSFeedParser.h b/RSXML2/RSFeedParser.h
index 80b6f56..b93fb65 100644
--- a/RSXML2/RSFeedParser.h
+++ b/RSXML2/RSFeedParser.h
@@ -22,7 +22,7 @@
 //  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 //  SOFTWARE.
 
-#import "RSXMLParser.h"
+#import <RSXML2/RSXMLParser.h>
 
 @class RSParsedFeed, RSParsedArticle;
 
diff --git a/RSXML2/RSHTMLLinkParser.h b/RSXML2/RSHTMLLinkParser.h
index 2454a29..541162b 100644
--- a/RSXML2/RSHTMLLinkParser.h
+++ b/RSXML2/RSHTMLLinkParser.h
@@ -23,7 +23,7 @@
 //  SOFTWARE.
 
 @import Foundation;
-#import "RSXMLParser.h"
+#import <RSXML2/RSXMLParser.h>
 
 @class RSHTMLMetadataAnchor;
 
diff --git a/RSXML2/RSHTMLMetadataParser.h b/RSXML2/RSHTMLMetadataParser.h
index 911c983..62047a6 100644
--- a/RSXML2/RSHTMLMetadataParser.h
+++ b/RSXML2/RSHTMLMetadataParser.h
@@ -23,7 +23,7 @@
 //  SOFTWARE.
 
 @import Foundation;
-#import "RSXMLParser.h"
+#import <RSXML2/RSXMLParser.h>
 
 @class RSHTMLMetadata;
 
diff --git a/RSXML2/RSOPMLParser.h b/RSXML2/RSOPMLParser.h
index 6cd0b36..fa9cd5e 100644
--- a/RSXML2/RSOPMLParser.h
+++ b/RSXML2/RSOPMLParser.h
@@ -22,7 +22,7 @@
 //  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 //  SOFTWARE.
 
-#import "RSXMLParser.h"
+#import <RSXML2/RSXMLParser.h>
 
 // <opml> <outline>
 // http://dev.opml.org/spec2.html#subscriptionLists
diff --git a/RSXML2/RSRSSParser.h b/RSXML2/RSRSSParser.h
index cc8cc70..bb8a93d 100644
--- a/RSXML2/RSRSSParser.h
+++ b/RSXML2/RSRSSParser.h
@@ -22,7 +22,7 @@
 //  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 //  SOFTWARE.
 
-#import "RSFeedParser.h"
+#import <RSXML2/RSFeedParser.h>
 
 // <channel> <item>
 // https://cyber.harvard.edu/rss/rss.html
diff --git a/RSXML2/RSXMLData.h b/RSXML2/RSXMLData.h
index b12c3d5..b254220 100644
--- a/RSXML2/RSXMLData.h
+++ b/RSXML2/RSXMLData.h
@@ -23,7 +23,7 @@
 //  SOFTWARE.
 
 @import Foundation;
-#import "RSXMLParser.h"
+#import <RSXML2/RSXMLParser.h>
 
 NS_ASSUME_NONNULL_BEGIN
 
diff --git a/RSXML2/RSXMLParser.h b/RSXML2/RSXMLParser.h
index 65945e9..99476c8 100644
--- a/RSXML2/RSXMLParser.h
+++ b/RSXML2/RSXMLParser.h
@@ -22,7 +22,7 @@
 //  SOFTWARE.
 
 @import Foundation;
-#import "RSSAXParser.h"
+#import <RSXML2/RSSAXParser.h>
 
 #define EqualBytes(bytes1, bytes2, length) (memcmp(bytes1, bytes2, length) == 0)
 //#define EqualBytes(bytes1, bytes2, length) (!strncmp(bytes1, bytes2, length))