--- dyld/dyld-1245.1/cache_builder/SubCache.cpp
+++ dyld/dyld-1235.2/cache_builder/SubCache.cpp
@@ -359,7 +359,7 @@
     return false;
 }
 
-static bool hasReadOnlyRegion(std::span<Region> regions)
+static bool hasLinkeditRegion(std::span<Region> regions)
 {
     for ( const Region& region : regions ) {
         if ( region.chunks.empty() )
@@ -374,33 +374,6 @@
             case cache_builder::Region::Kind::authConst:
                 break;
             case Region::Kind::readOnly:
-                return true;
-            case cache_builder::Region::Kind::linkedit:
-            case cache_builder::Region::Kind::unmapped:
-            case cache_builder::Region::Kind::dynamicConfig:
-            case cache_builder::Region::Kind::codeSignature:
-            case cache_builder::Region::Kind::numKinds:
-                break;
-        }
-    }
-    return false;
-}
-
-static bool hasLinkeditRegion(std::span<Region> regions)
-{
-    for ( const Region& region : regions ) {
-        if ( region.chunks.empty() )
-            continue;
-        switch ( region.kind ) {
-            case cache_builder::Region::Kind::text:
-            case cache_builder::Region::Kind::tproConst:
-            case cache_builder::Region::Kind::tproAuthConst:
-            case cache_builder::Region::Kind::dataConst:
-            case cache_builder::Region::Kind::data:
-            case cache_builder::Region::Kind::auth:
-            case cache_builder::Region::Kind::authConst:
-            case Region::Kind::readOnly:
-                break;
             case cache_builder::Region::Kind::linkedit:
                 return true;
             case cache_builder::Region::Kind::unmapped:
@@ -421,7 +394,6 @@
 
     const char* dataSuffix = forceDevelopmentSubCacheSuffix ? ".development.dylddata" : ".dylddata";
     const char* linkeditSuffix = forceDevelopmentSubCacheSuffix ? ".development.dyldlinkedit" : ".dyldlinkedit";
-    const char* readonlySuffix = forceDevelopmentSubCacheSuffix ? ".development.dyldreadonly" : ".dyldreadonly";
     const char* subCacheSuffix = forceDevelopmentSubCacheSuffix ? ".development" : "";
 
     if ( platform == dyld3::Platform::macOS ) {
@@ -439,9 +411,6 @@
     } else if ( hasDataRegion(this->regions) ) {
         // Data only subcaches have their own suffix
         this->fileSuffix = "." + dyld3::json::decimal(subCacheIndex) + dataSuffix;
-    } else if ( hasReadOnlyRegion(this->regions) ) {
-        // read-only only subcaches have their own suffix
-        this->fileSuffix = "." + dyld3::json::decimal(subCacheIndex) + readonlySuffix;
     } else if ( hasLinkeditRegion(this->regions) ) {
         // Linkedit only subcaches have their own suffix
         this->fileSuffix = "." + dyld3::json::decimal(subCacheIndex) + linkeditSuffix;