diff --git a/Modules/FortranCInterface/CMakeLists.txt b/Modules/FortranCInterface/CMakeLists.txt
index af7d32d27f..cabbb32b6a 100644
--- a/Modules/FortranCInterface/CMakeLists.txt
+++ b/Modules/FortranCInterface/CMakeLists.txt
@@ -104,7 +104,12 @@ target_link_libraries(symbols PUBLIC myfort)
 set_property(TARGET symbols PROPERTY POSITION_INDEPENDENT_CODE 1)
 
 if(CMAKE_Fortran_COMPILER_ID STREQUAL "LFortran")
-  add_compile_options(--implicit-interface --generate-object-code)
+  if(CMAKE_Fortran_COMPILER_VERSION VERSION_GREATER_EQUAL "0.55")
+    set(_LFORTRAN_SC_FLAG --separate-compilation)
+  else()
+    set(_LFORTRAN_SC_FLAG --generate-object-code)
+  endif()
+  add_compile_options(--implicit-interface ${_LFORTRAN_SC_FLAG})
 endif()
 
 # Require symbols through Fortran.
diff --git a/Modules/FortranCInterface/Verify/CMakeLists.txt b/Modules/FortranCInterface/Verify/CMakeLists.txt
index 7367968825..04fa6aa4ee 100644
--- a/Modules/FortranCInterface/Verify/CMakeLists.txt
+++ b/Modules/FortranCInterface/Verify/CMakeLists.txt
@@ -5,7 +5,12 @@ cmake_minimum_required(VERSION ${CMAKE_VERSION})
 project(VerifyFortranC C Fortran)
 
 if(CMAKE_Fortran_COMPILER_ID STREQUAL "LFortran")
-  add_compile_options("$<$<COMPILE_LANGUAGE:Fortran>:--generate-object-code>")
+  if(CMAKE_Fortran_COMPILER_VERSION VERSION_GREATER_EQUAL "0.55")
+    set(_LFORTRAN_SC_FLAG --separate-compilation)
+  else()
+    set(_LFORTRAN_SC_FLAG --generate-object-code)
+  endif()
+  add_compile_options("$<$<COMPILE_LANGUAGE:Fortran>:${_LFORTRAN_SC_FLAG}>")
 endif()
 
 option(VERIFY_CXX "Whether to verify C++ and Fortran" OFF)
diff --git a/Tests/Fortran/CMakeLists.txt b/Tests/Fortran/CMakeLists.txt
index ce36829a37..4769ab22ea 100644
--- a/Tests/Fortran/CMakeLists.txt
+++ b/Tests/Fortran/CMakeLists.txt
@@ -38,7 +38,12 @@ if(WIN32 AND NOT CYGWIN)
 endif()
 
 if(CMAKE_Fortran_COMPILER_ID STREQUAL "LFortran")
-  add_compile_options("$<$<COMPILE_LANGUAGE:Fortran>:--implicit-interface;--generate-object-code>")
+  if(CMAKE_Fortran_COMPILER_VERSION VERSION_GREATER_EQUAL "0.55")
+    set(_LFORTRAN_SC_FLAG --separate-compilation)
+  else()
+    set(_LFORTRAN_SC_FLAG --generate-object-code)
+  endif()
+  add_compile_options("$<$<COMPILE_LANGUAGE:Fortran>:--implicit-interface;${_LFORTRAN_SC_FLAG}>")
 endif()
 
 add_library(hello STATIC hello.f)
diff --git a/Tests/FortranOnly/CMakeLists.txt b/Tests/FortranOnly/CMakeLists.txt
index d32c3bdff6..a59cf83675 100644
--- a/Tests/FortranOnly/CMakeLists.txt
+++ b/Tests/FortranOnly/CMakeLists.txt
@@ -9,7 +9,12 @@ if("${CMAKE_Fortran_COMPILER_ID};${CMAKE_Fortran_SIMULATE_ID}" MATCHES "^Intel(L
 endif()
 
 if(CMAKE_Fortran_COMPILER_ID STREQUAL "LFortran")
-  add_compile_options(--implicit-interface --generate-object-code)
+  if(CMAKE_Fortran_COMPILER_VERSION VERSION_GREATER_EQUAL "0.55")
+    set(_LFORTRAN_SC_FLAG --separate-compilation)
+  else()
+    set(_LFORTRAN_SC_FLAG --generate-object-code)
+  endif()
+  add_compile_options(--implicit-interface ${_LFORTRAN_SC_FLAG})
 endif()
 
 # create a library with hello and world functions
diff --git a/Tests/Module/CheckIPOSupported-Fortran/CMakeLists.txt b/Tests/Module/CheckIPOSupported-Fortran/CMakeLists.txt
index 4d03a93891..3017898e24 100644
--- a/Tests/Module/CheckIPOSupported-Fortran/CMakeLists.txt
+++ b/Tests/Module/CheckIPOSupported-Fortran/CMakeLists.txt
@@ -4,7 +4,12 @@ project(CheckIPOSupported-Fortran LANGUAGES Fortran)
 cmake_policy(SET CMP0069 NEW)
 
 if(CMAKE_Fortran_COMPILER_ID STREQUAL "LFortran")
-  add_compile_options(--implicit-interface --generate-object-code)
+  if(CMAKE_Fortran_COMPILER_VERSION VERSION_GREATER_EQUAL "0.55")
+    set(_LFORTRAN_SC_FLAG --separate-compilation)
+  else()
+    set(_LFORTRAN_SC_FLAG --generate-object-code)
+  endif()
+  add_compile_options(--implicit-interface ${_LFORTRAN_SC_FLAG})
 endif()
 
 include(CheckIPOSupported)
diff --git a/Tests/RunCMake/ParseImplicitData/linux-Fortran-LFortran-0.55.0-clang.input b/Tests/RunCMake/ParseImplicitData/linux-Fortran-LFortran-0.55.0-clang.input
new file mode 100644
index 0000000000..8e4e5dd5e5
--- /dev/null
+++ b/Tests/RunCMake/ParseImplicitData/linux-Fortran-LFortran-0.55.0-clang.input
@@ -0,0 +1,38 @@
+CMAKE_LANG=Fortran
+CMAKE_LINKER=/usr/bin/ld
+CMAKE_Fortran_COMPILER_ABI=ELF
+CMAKE_Fortran_COMPILER_AR=
+CMAKE_Fortran_COMPILER_ARCHITECTURE_ID=x86_64
+CMAKE_Fortran_COMPILER_EXTERNAL_TOOLCHAIN=
+CMAKE_Fortran_COMPILER_ID=LFortran
+CMAKE_Fortran_COMPILER_LAUNCHER=
+CMAKE_Fortran_COMPILER_LOADED=1
+CMAKE_Fortran_COMPILER_RANLIB=
+CMAKE_Fortran_COMPILER_TARGET=
+CMAKE_Fortran_COMPILER_VERSION=0.55.0
+CMAKE_Fortran_COMPILER_VERSION_INTERNAL=
+Change Dir: '/tmp/ii/CMakeFiles/CMakeTmp'
+
+Run Build Command(s): /tmp/CMake/bin/cmake -E env VERBOSE=1 /usr/bin/gmake -f Makefile cmTC_1058c/fast
+/usr/bin/gmake  -f CMakeFiles/cmTC_1058c.dir/build.make CMakeFiles/cmTC_1058c.dir/build
+gmake[1]: Entering directory '/tmp/ii/CMakeFiles/CMakeTmp'
+Building Fortran object CMakeFiles/cmTC_1058c.dir/CMakeFortranCompilerABI.F.o
+/usr/bin/lfortran --cpp-infer   --linker=clang    -v -Wl,-v -c /tmp/CMake/Modules/CMakeFortranCompilerABI.F -o CMakeFiles/cmTC_1058c.dir/CMakeFortranCompilerABI.F.o
+Linking Fortran executable cmTC_1058c
+/tmp/CMake/bin/cmake -E cmake_link_script CMakeFiles/cmTC_1058c.dir/link.txt --verbose=1
+clang -o cmTC_1058c CMakeFiles/cmTC_1058c.dir/CMakeFortranCompilerABI.F.o  -L"/usr/bin/../lib64" -Wl,-rpath,"/usr/bin/../lib64" -Wl,-v -llfortran_runtime -lm -v
+clang version 21.1.1 (Fedora 21.1.1-1.fc43)
+Target: x86_64-redhat-linux-gnu
+Thread model: posix
+InstalledDir: /usr/bin
+Configuration file: /etc/clang/x86_64-redhat-linux-gnu-clang.cfg
+System configuration file directory: /etc/clang/
+Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-redhat-linux/15
+Selected GCC installation: /usr/bin/../lib/gcc/x86_64-redhat-linux/15
+Candidate multilib: .@m64
+Candidate multilib: 32@m32
+Selected multilib: .@m64
+ "/usr/bin/ld" --hash-style=gnu --build-id --eh-frame-hdr -m elf_x86_64 -dynamic-linker /lib64/ld-linux-x86-64.so.2 -o cmTC_1058c /usr/bin/../lib/gcc/x86_64-redhat-linux/15/../../../../lib64/crt1.o /usr/bin/../lib/gcc/x86_64-redhat-linux/15/../../../../lib64/crti.o /usr/bin/../lib/gcc/x86_64-redhat-linux/15/crtbegin.o -L/usr/bin/../lib64 -L/usr/bin/../lib/clang/21/lib/x86_64-redhat-linux-gnu -L/usr/bin/../lib/gcc/x86_64-redhat-linux/15 -L/usr/bin/../lib/gcc/x86_64-redhat-linux/15/../../../../lib64 -L/lib/../lib64 -L/usr/lib64 -L/lib -L/usr/lib CMakeFiles/cmTC_1058c.dir/CMakeFortranCompilerABI.F.o -rpath /usr/bin/../lib64 -v -llfortran_runtime -lm -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed /usr/bin/../lib/gcc/x86_64-redhat-linux/15/crtend.o /usr/bin/../lib/gcc/x86_64-redhat-linux/15/../../../../lib64/crtn.o
+GNU ld version 2.45-1.fc43
+/usr/bin/lfortran  -v -Wl,-v --linker=clang  CMakeFiles/cmTC_1058c.dir/CMakeFortranCompilerABI.F.o -o cmTC_1058c
+gmake[1]: Leaving directory '/tmp/ii/CMakeFiles/CMakeTmp'
diff --git a/Tests/RunCMake/ParseImplicitData/linux-Fortran-LFortran-0.55.0-gcc.input b/Tests/RunCMake/ParseImplicitData/linux-Fortran-LFortran-0.55.0-gcc.input
new file mode 100644
index 0000000000..376ee076d1
--- /dev/null
+++ b/Tests/RunCMake/ParseImplicitData/linux-Fortran-LFortran-0.55.0-gcc.input
@@ -0,0 +1,43 @@
+CMAKE_LANG=Fortran
+CMAKE_LINKER=/usr/bin/ld
+CMAKE_Fortran_COMPILER_ABI=ELF
+CMAKE_Fortran_COMPILER_AR=
+CMAKE_Fortran_COMPILER_ARCHITECTURE_ID=x86_64
+CMAKE_Fortran_COMPILER_EXTERNAL_TOOLCHAIN=
+CMAKE_Fortran_COMPILER_ID=LFortran
+CMAKE_Fortran_COMPILER_LAUNCHER=
+CMAKE_Fortran_COMPILER_LOADED=1
+CMAKE_Fortran_COMPILER_RANLIB=
+CMAKE_Fortran_COMPILER_TARGET=
+CMAKE_Fortran_COMPILER_VERSION=0.55.0
+CMAKE_Fortran_COMPILER_VERSION_INTERNAL=
+Change Dir: '/tmp/ii/CMakeFiles/CMakeTmp'
+
+Run Build Command(s): /tmp/CMake/bin/cmake -E env VERBOSE=1 /usr/bin/gmake -f Makefile cmTC_e5d48/fast
+/usr/bin/gmake  -f CMakeFiles/cmTC_e5d48.dir/build.make CMakeFiles/cmTC_e5d48.dir/build
+gmake[1]: Entering directory '/tmp/ii/CMakeFiles/CMakeTmp'
+Building Fortran object CMakeFiles/cmTC_e5d48.dir/CMakeFortranCompilerABI.F.o
+/usr/bin/lfortran --cpp-infer   --linker=gcc    -v -Wl,-v -c /tmp/CMake/Modules/CMakeFortranCompilerABI.F -o CMakeFiles/cmTC_e5d48.dir/CMakeFortranCompilerABI.F.o
+Linking Fortran executable cmTC_e5d48
+/tmp/CMake/bin/cmake -E cmake_link_script CMakeFiles/cmTC_e5d48.dir/link.txt --verbose=1
+gcc -o cmTC_e5d48 CMakeFiles/cmTC_e5d48.dir/CMakeFortranCompilerABI.F.o  -L"/usr/bin/../lib64" -Wl,-rpath,"/usr/bin/../lib64" -Wl,-v -llfortran_runtime -lm -v
+Using built-in specs.
+COLLECT_GCC=gcc
+COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/15/lto-wrapper
+OFFLOAD_TARGET_NAMES=nvptx-none:amdgcn-amdhsa
+OFFLOAD_TARGET_DEFAULT=1
+Target: x86_64-redhat-linux
+Configured with: ../configure --enable-bootstrap --enable-languages=c,c++,fortran,objc,obj-c++,ada,go,d,m2,cobol,lto --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-shared --enable-threads=posix --enable-checking=release --enable-multilib --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-gcc-major-version-only --enable-libstdcxx-backtrace --with-libstdcxx-zoneinfo=/usr/share/zoneinfo --with-linker-hash-style=gnu --enable-plugin --enable-initfini-array --with-isl=/builddir/build/BUILD/gcc-15.2.1-build/gcc-15.2.1-20250808/obj-x86_64-redhat-linux/isl-install --enable-offload-targets=nvptx-none,amdgcn-amdhsa --enable-offload-defaulted --without-cuda-driver --enable-gnu-indirect-function --enable-cet --with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux --with-build-config=bootstrap-lto --enable-link-serialization=1
+Thread model: posix
+Supported LTO compression algorithms: zlib zstd
+gcc version 15.2.1 20250808 (Red Hat 15.2.1-1) (GCC)
+COMPILER_PATH=/usr/libexec/gcc/x86_64-redhat-linux/15/:/usr/libexec/gcc/x86_64-redhat-linux/15/:/usr/libexec/gcc/x86_64-redhat-linux/:/usr/lib/gcc/x86_64-redhat-linux/15/:/usr/lib/gcc/x86_64-redhat-linux/
+LIBRARY_PATH=/usr/lib/gcc/x86_64-redhat-linux/15/:/usr/lib/gcc/x86_64-redhat-linux/15/../../../../lib64/:/lib/../lib64/:/usr/lib/../lib64/:/usr/lib/gcc/x86_64-redhat-linux/15/../../../:/lib/:/usr/lib/
+COLLECT_GCC_OPTIONS='-o' 'cmTC_e5d48' '-L/usr/bin/../lib64' '-foffload-options=-l_GCC_m' '-v' '-mtune=generic' '-march=x86-64' '-dumpdir' 'cmTC_e5d48.'
+ /usr/libexec/gcc/x86_64-redhat-linux/15/collect2 -plugin /usr/libexec/gcc/x86_64-redhat-linux/15/liblto_plugin.so -plugin-opt=/usr/libexec/gcc/x86_64-redhat-linux/15/lto-wrapper -plugin-opt=-fresolution=/tmp/cc5Ml5eq.res -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lgcc_s -plugin-opt=-pass-through=-lc -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lgcc_s --build-id --no-add-needed --eh-frame-hdr --hash-style=gnu -m elf_x86_64 -dynamic-linker /lib64/ld-linux-x86-64.so.2 -o cmTC_e5d48 /usr/lib/gcc/x86_64-redhat-linux/15/../../../../lib64/crt1.o /usr/lib/gcc/x86_64-redhat-linux/15/../../../../lib64/crti.o /usr/lib/gcc/x86_64-redhat-linux/15/crtbegin.o -L/usr/bin/../lib64 -L/usr/lib/gcc/x86_64-redhat-linux/15 -L/usr/lib/gcc/x86_64-redhat-linux/15/../../../../lib64 -L/lib/../lib64 -L/usr/lib/../lib64 -L/usr/lib/gcc/x86_64-redhat-linux/15/../../.. -L/lib -L/usr/lib CMakeFiles/cmTC_e5d48.dir/CMakeFortranCompilerABI.F.o -rpath /usr/bin/../lib64 -v -llfortran_runtime -lm -lgcc --push-state --as-needed -lgcc_s --pop-state -lc -lgcc --push-state --as-needed -lgcc_s --pop-state /usr/lib/gcc/x86_64-redhat-linux/15/crtend.o /usr/lib/gcc/x86_64-redhat-linux/15/../../../../lib64/crtn.o
+collect2 version 15.2.1 20250808 (Red Hat 15.2.1-1)
+/usr/bin/ld -plugin /usr/libexec/gcc/x86_64-redhat-linux/15/liblto_plugin.so -plugin-opt=/usr/libexec/gcc/x86_64-redhat-linux/15/lto-wrapper -plugin-opt=-fresolution=/tmp/cc5Ml5eq.res -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lgcc_s -plugin-opt=-pass-through=-lc -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lgcc_s --build-id --no-add-needed --eh-frame-hdr --hash-style=gnu -m elf_x86_64 -dynamic-linker /lib64/ld-linux-x86-64.so.2 -o cmTC_e5d48 /usr/lib/gcc/x86_64-redhat-linux/15/../../../../lib64/crt1.o /usr/lib/gcc/x86_64-redhat-linux/15/../../../../lib64/crti.o /usr/lib/gcc/x86_64-redhat-linux/15/crtbegin.o -L/usr/bin/../lib64 -L/usr/lib/gcc/x86_64-redhat-linux/15 -L/usr/lib/gcc/x86_64-redhat-linux/15/../../../../lib64 -L/lib/../lib64 -L/usr/lib/../lib64 -L/usr/lib/gcc/x86_64-redhat-linux/15/../../.. -L/lib -L/usr/lib CMakeFiles/cmTC_e5d48.dir/CMakeFortranCompilerABI.F.o -rpath /usr/bin/../lib64 -v -llfortran_runtime -lm -lgcc --push-state --as-needed -lgcc_s --pop-state -lc -lgcc --push-state --as-needed -lgcc_s --pop-state /usr/lib/gcc/x86_64-redhat-linux/15/crtend.o /usr/lib/gcc/x86_64-redhat-linux/15/../../../../lib64/crtn.o
+GNU ld version 2.45-1.fc43
+COLLECT_GCC_OPTIONS='-o' 'cmTC_e5d48' '-L/usr/bin/../lib64' '-foffload-options=-l_GCC_m' '-v' '-mtune=generic' '-march=x86-64' '-dumpdir' 'cmTC_e5d48.'
+/usr/bin/lfortran  -v -Wl,-v --linker=gcc  CMakeFiles/cmTC_e5d48.dir/CMakeFortranCompilerABI.F.o -o cmTC_e5d48
+gmake[1]: Leaving directory '/tmp/ii/CMakeFiles/CMakeTmp'
diff --git a/Tests/RunCMake/ParseImplicitLinkInfo/ParseImplicitLinkInfo.cmake b/Tests/RunCMake/ParseImplicitLinkInfo/ParseImplicitLinkInfo.cmake
index fef216df62..46d5c8ded8 100644
--- a/Tests/RunCMake/ParseImplicitLinkInfo/ParseImplicitLinkInfo.cmake
+++ b/Tests/RunCMake/ParseImplicitLinkInfo/ParseImplicitLinkInfo.cmake
@@ -48,6 +48,8 @@ set(targets
   linux-Fortran-LFortran-0.35.0-gcc
   linux-Fortran-LFortran-0.41.0-clang
   linux-Fortran-LFortran-0.41.0-gcc
+  linux-Fortran-LFortran-0.55.0-clang
+  linux-Fortran-LFortran-0.55.0-gcc
   linux-custom_clang-C-Clang-13.0.0 linux-custom_clang-CXX-Clang-13.0.0
   mingw.org-C-GNU-4.9.3 mingw.org-CXX-GNU-4.9.3
   netbsd-C-GNU-4.8.5 netbsd-CXX-GNU-4.8.5
diff --git a/Tests/RunCMake/ParseImplicitLinkInfo/results/linux-Fortran-LFortran-0.55.0-clang.output b/Tests/RunCMake/ParseImplicitLinkInfo/results/linux-Fortran-LFortran-0.55.0-clang.output
new file mode 100644
index 0000000000..82438501df
--- /dev/null
+++ b/Tests/RunCMake/ParseImplicitLinkInfo/results/linux-Fortran-LFortran-0.55.0-clang.output
@@ -0,0 +1,4 @@
+libs=lfortran_runtime;m;gcc;gcc_s;c;gcc;gcc_s
+dirs=/usr/lib64;/usr/lib/clang/21/lib/x86_64-redhat-linux-gnu;/usr/lib/gcc/x86_64-redhat-linux/15;/lib64;/lib;/usr/lib
+library_arch=x86_64-redhat-linux-gnu
+linker_tool=/usr/bin/ld
diff --git a/Tests/RunCMake/ParseImplicitLinkInfo/results/linux-Fortran-LFortran-0.55.0-gcc.output b/Tests/RunCMake/ParseImplicitLinkInfo/results/linux-Fortran-LFortran-0.55.0-gcc.output
new file mode 100644
index 0000000000..c04e12baa0
--- /dev/null
+++ b/Tests/RunCMake/ParseImplicitLinkInfo/results/linux-Fortran-LFortran-0.55.0-gcc.output
@@ -0,0 +1,4 @@
+libs=lfortran_runtime;m;gcc;gcc_s;c;gcc;gcc_s
+dirs=/usr/lib64;/usr/lib/gcc/x86_64-redhat-linux/15;/lib64;/usr/lib;/lib
+library_arch=
+linker_tool=/usr/bin/ld
diff --git a/Tests/VSGNUFortran/subdir/fortran/CMakeLists.txt b/Tests/VSGNUFortran/subdir/fortran/CMakeLists.txt
index 5689289b78..9080c24d61 100644
--- a/Tests/VSGNUFortran/subdir/fortran/CMakeLists.txt
+++ b/Tests/VSGNUFortran/subdir/fortran/CMakeLists.txt
@@ -26,7 +26,12 @@ target_link_libraries(sunq sunquad)
 endfunction()
 
 if(CMAKE_Fortran_COMPILER_ID STREQUAL "LFortran")
-  add_compile_options(--implicit-interface --generate-object-code)
+  if(CMAKE_Fortran_COMPILER_VERSION VERSION_GREATER_EQUAL "0.55")
+    set(_LFORTRAN_SC_FLAG --separate-compilation)
+  else()
+    set(_LFORTRAN_SC_FLAG --generate-object-code)
+  endif()
+  add_compile_options(--implicit-interface ${_LFORTRAN_SC_FLAG})
 endif()
 
 # check for the fortran c interface mangling