Index: lld/MachO/InputFiles.h
===================================================================
--- lld/MachO/InputFiles.h
+++ lld/MachO/InputFiles.h
@@ -131,6 +131,8 @@
   static bool classof(const InputFile *f) { return f->kind() == DylibKind; }
 
   StringRef dylibName;
+  uint32_t compatibilityVersion = 0;
+  uint32_t currentVersion = 0;
   uint64_t ordinal = 0; // Ordinal numbering starts from 1, so 0 is a sentinel
   bool reexport = false;
   bool forceWeakImport = false;
Index: lld/MachO/InputFiles.cpp
===================================================================
--- lld/MachO/InputFiles.cpp
+++ lld/MachO/InputFiles.cpp
@@ -530,6 +530,8 @@
   // Initialize dylibName.
   if (const load_command *cmd = findCommand(hdr, LC_ID_DYLIB)) {
     auto *c = reinterpret_cast<const dylib_command *>(cmd);
+    currentVersion = read32le(&c->dylib.current_version);
+    compatibilityVersion = read32le(&c->dylib.compatibility_version);
     dylibName = reinterpret_cast<const char *>(cmd) + read32le(&c->dylib.name);
   } else {
     error("dylib " + toString(this) + " missing LC_ID_DYLIB load command");
@@ -576,6 +578,8 @@
     umbrella = this;
 
   dylibName = saver.save(interface.getInstallName());
+  compatibilityVersion = interface.getCompatibilityVersion().rawValue();
+  currentVersion = interface.getCurrentVersion().rawValue();
   DylibFile *exportingFile = isImplicitlyLinked(dylibName) ? this : umbrella;
   auto addSymbol = [&](const Twine &name) -> void {
     symbols.push_back(symtab->addDylib(saver.save(name), exportingFile,
Index: lld/MachO/Writer.cpp
===================================================================
--- lld/MachO/Writer.cpp
+++ lld/MachO/Writer.cpp
@@ -467,7 +467,9 @@
       // loaded via LC_LOAD_WEAK_DYLIB.
       LoadCommandType lcType =
           dylibFile->forceWeakImport ? LC_LOAD_WEAK_DYLIB : LC_LOAD_DYLIB;
-      in.header->addLoadCommand(make<LCDylib>(lcType, dylibFile->dylibName));
+      in.header->addLoadCommand(make<LCDylib>(lcType, dylibFile->dylibName,
+                                              dylibFile->compatibilityVersion,
+                                              dylibFile->currentVersion));
       dylibFile->ordinal = dylibOrdinal++;
 
       if (dylibFile->reexport)
Index: lld/test/MachO/dylink.s
===================================================================
--- lld/test/MachO/dylink.s
+++ lld/test/MachO/dylink.s
@@ -4,8 +4,9 @@
 # RUN:   -o %t/libhello.o
 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %p/Inputs/libgoodbye.s \
 # RUN:   -o %t/libgoodbye.o
-# RUN: %lld -dylib -install_name \
-# RUN:   @executable_path/libhello.dylib %t/libhello.o -o %t/libhello.dylib
+# RUN: %lld -dylib -install_name @executable_path/libhello.dylib \
+# RUN:   -compatibility_version 10 -current_version 11 \
+# RUN:   %t/libhello.o -o %t/libhello.dylib
 # RUN: %lld -dylib -install_name \
 # RUN:   @executable_path/libgoodbye.dylib %t/libgoodbye.o -o %t/libgoodbye.dylib
 
@@ -51,12 +52,15 @@
 # RUN: llvm-objdump --macho --all-headers %t/dylink | FileCheck %s \
 # RUN:   --check-prefix=LOAD --implicit-check-not LC_LOAD_DYLIB
 
-# LOAD:              cmd LC_LOAD_DYLIB
-# LOAD-NEXT:     cmdsize
-# LOAD-NEXT:        name @executable_path/libhello.dylib
-# LOAD:              cmd LC_LOAD_DYLIB
-# LOAD-NEXT:     cmdsize
-# LOAD-NEXT:        name @executable_path/libgoodbye.dylib
+# LOAD:                        cmd LC_LOAD_DYLIB
+# LOAD-NEXT:               cmdsize
+# LOAD-NEXT:                  name @executable_path/libhello.dylib
+# LOAD-NEXT:            time stamp
+# LOAD-NEXT:       current version 11.0.0
+# LOAD-NEXT: compatibility version 10.0.0
+# LOAD:                        cmd LC_LOAD_DYLIB
+# LOAD-NEXT:               cmdsize
+# LOAD-NEXT:                  name @executable_path/libgoodbye.dylib
 
 .section __TEXT,__text
 .globl _main
Index: lld/test/MachO/implicit-dylibs.s
===================================================================
--- lld/test/MachO/implicit-dylibs.s
+++ lld/test/MachO/implicit-dylibs.s
@@ -39,23 +39,26 @@
 # RUN:   --check-prefix=LOAD -DDIR=%t --implicit-check-not LC_LOAD_DYLIB
 
 # LOAD:          cmd LC_LOAD_DYLIB
-# LOAD-NEXT: cmdsize
-# LOAD-NEXT:    name /usr/lib/libSystem.B.dylib
-# LOAD:          cmd LC_LOAD_DYLIB
-# LOAD-NEXT: cmdsize
-# LOAD-NEXT:    name /usr/lib/libc++abi.dylib
-# LOAD:          cmd LC_LOAD_DYLIB
-# LOAD-NEXT: cmdsize
-# LOAD-NEXT:    name /usr/lib/libc++.dylib
-# LOAD:          cmd LC_LOAD_DYLIB
-# LOAD-NEXT: cmdsize
-# LOAD-NEXT:    name /usr/lib/libtoplevel.dylib
-# LOAD:          cmd LC_LOAD_DYLIB
-# LOAD-NEXT: cmdsize
-# LOAD-NEXT:    name /usr/lib/libunused.dylib
-# LOAD:          cmd LC_LOAD_DYLIB
-# LOAD-NEXT: cmdsize
-# LOAD-NEXT:    name [[DIR]]/libreexporter.dylib
+# LOAD-NEXT:               cmdsize
+# LOAD-NEXT:                  name /usr/lib/libSystem.B.dylib
+# LOAD-NEXT:            time stamp
+# LOAD-NEXT:       current version 1.1.1
+# LOAD-NEXT: compatibility version
+# LOAD:                        cmd LC_LOAD_DYLIB
+# LOAD-NEXT:               cmdsize
+# LOAD-NEXT:                  name /usr/lib/libc++abi.dylib
+# LOAD:                        cmd LC_LOAD_DYLIB
+# LOAD-NEXT:               cmdsize
+# LOAD-NEXT:                  name /usr/lib/libc++.dylib
+# LOAD:                        cmd LC_LOAD_DYLIB
+# LOAD-NEXT:               cmdsize
+# LOAD-NEXT:                  name /usr/lib/libtoplevel.dylib
+# LOAD:                        cmd LC_LOAD_DYLIB
+# LOAD-NEXT:               cmdsize
+# LOAD-NEXT:                  name /usr/lib/libunused.dylib
+# LOAD:                        cmd LC_LOAD_DYLIB
+# LOAD-NEXT:               cmdsize
+# LOAD-NEXT:                  name [[DIR]]/libreexporter.dylib
 
 # RUN: %lld -no_implicit_dylibs -syslibroot %t -o %t/no-implicit -lSystem -L%t -lreexporter %t/test.o
 # RUN: llvm-objdump --bind --no-show-raw-insn -d %t/no-implicit | FileCheck %s --check-prefix=NO-IMPLICIT