erlang · richcarl · Nov 30, 2025 · Nov 30, 2025 · Dec 2, 2025
diff --git a/erts/preloaded/src/Makefile b/erts/preloaded/src/Makefile
@@ -86,7 +86,7 @@ KERNEL_SRC=$(ERL_TOP)/lib/kernel/src
 KERNEL_INCLUDE=$(ERL_TOP)/lib/kernel/include
 STDLIB_INCLUDE=$(ERL_TOP)/lib/stdlib/include
 
-ERL_COMPILE_FLAGS += -I$(KERNEL_SRC) -I$(KERNEL_INCLUDE)
+ERL_COMPILE_FLAGS += -I$(KERNEL_SRC) -I$(KERNEL_INCLUDE) +nowarn_deprecated_catch
 
 ifeq ($(ERL_DETERMINISTIC),yes)
 	ERL_COMPILE_FLAGS += +deterministic
@@ -174,4 +174,4 @@ dialyzer: $(DIA_PLT)
                   $(DIA_WARNINGS) \
                   --verbose
 DEP_REL_TOP=../../../lib/
-include $(ERL_TOP)/make/dep.mk
+include $(ERL_TOP)/make/dep.mk
diff --git a/lib/asn1/src/Makefile b/lib/asn1/src/Makefile
@@ -103,7 +103,7 @@ EXAMPLES = \
 
 ERL_COMPILE_FLAGS += \
 	-I$(ERL_TOP)/lib/stdlib \
-	-Werror
+	-Werror +nowarn_deprecated_catch
 
 ifeq ($(ERL_DETERMINISTIC),yes)
 	YRL_FLAGS = +deterministic

diff --git a/lib/asn1/test/asn1_SUITE.erl b/lib/asn1/test/asn1_SUITE.erl
@@ -23,6 +23,8 @@
 
 -module(asn1_SUITE).
 
+-compile(nowarn_deprecated_catch).
+
 %% Suppress compilation of an addititional module compiled for maps.
 -define(NO_MAPS_MODULE, asn1_test_lib_no_maps).
 

diff --git a/lib/asn1/test/asn1_app_SUITE.erl b/lib/asn1/test/asn1_app_SUITE.erl
@@ -28,6 +28,8 @@
          init_per_suite/1,end_per_suite/1,
          appup/1,fields/1,modules/1,export_all/1,app_depend/1]).
 
+-compile(nowarn_deprecated_catch).
+
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 all() ->

diff --git a/lib/asn1/test/asn1_test_lib.erl b/lib/asn1/test/asn1_test_lib.erl
@@ -39,7 +39,7 @@ compile(File, Config, Options) -> compile_all([File], Config, Options).
 compile_all(Files, Config, Options0) ->
     DataDir = proplists:get_value(data_dir, Config),
     CaseDir = proplists:get_value(case_dir, Config),
-    Options = [{outdir,CaseDir},debug_info|Options0],
+    Options = [{outdir,CaseDir},debug_info,nowarn_deprecated_catch|Options0],
 
     Comp = fun(F) ->
 		   compile_file(filename:join(DataDir, F), Options)

diff --git a/lib/asn1/test/testChoPrim.erl b/lib/asn1/test/testChoPrim.erl
@@ -27,6 +27,8 @@
 
 -include_lib("common_test/include/ct.hrl").
 
+-compile(nowarn_deprecated_catch).
+
 bool(Rules) ->
     roundtrip('ChoCon', {bool0,true}),
     roundtrip('ChoCon', {bool1,true}),

diff --git a/lib/asn1/test/testEnumExt.erl b/lib/asn1/test/testEnumExt.erl
@@ -26,6 +26,8 @@
 
 -include_lib("common_test/include/ct.hrl").
 
+-compile(nowarn_deprecated_catch).
+
 main(Rule) when Rule =:= per; Rule =:= uper ->
     io:format("main(~p)~n",[Rule]),
 

diff --git a/lib/asn1/test/testInfObj.erl b/lib/asn1/test/testInfObj.erl
@@ -25,6 +25,8 @@
 
 -export([main/1]).
 
+-compile(nowarn_deprecated_catch).
+
 -record('InitiatingMessage',{procedureCode,criticality,value}).
 -record('InitiatingMessage2',{procedureCode,criticality,value}).
 -record('Iu-ReleaseCommand',{first,second}).

diff --git a/lib/common_test/src/Makefile b/lib/common_test/src/Makefile
@@ -117,7 +117,7 @@ DTD_FILES = \
 # FLAGS
 # ----------------------------------------------------
 ERL_COMPILE_FLAGS += -pa ../ebin -I../include -I $(ERL_TOP)/lib/snmp/include/ \
-	-I../../xmerl/inc/ -I $(ERL_TOP)/lib/kernel/include -Werror
+	-I../../xmerl/inc/ -I $(ERL_TOP)/lib/kernel/include -Werror +nowarn_deprecated_catch
 
 # ----------------------------------------------------
 # Targets

diff --git a/lib/common_test/test_server/Makefile b/lib/common_test/test_server/Makefile
@@ -60,7 +60,7 @@ TS_TARGETS = $(TS_MODULES:%=$(EBIN)/%.$(EMULATOR))
 # ----------------------------------------------------
 # FLAGS
 # ----------------------------------------------------
-ERL_COMPILE_FLAGS += -I../include -Werror +nowarn_missing_spec_documented
+ERL_COMPILE_FLAGS += -I../include -Werror +nowarn_missing_spec_documented +nowarn_deprecated_catch
 
 # ----------------------------------------------------
 # Targets

diff --git a/lib/compiler/src/compile.erl b/lib/compiler/src/compile.erl
@@ -713,11 +713,9 @@ value are listed.
   Default is to emit warnings for every use of a callback known by the compiler to
   be deprecated.
 
-- **`warn_deprecated_catch`** - Enables warnings for use of old style catch
+- **`nowarn_deprecated_catch`** - Turns off warnings for use of old style catch
   expressions of the form `catch Expr` instead of the modern `try ... catch
-  ... end`. You may enable this compiler option on the project level and
-  add `-compile(nowarn_deprecated_catch).` to individual files which still
-  contain old catches in order to prevent new uses from getting added.
+  ... end`.
 
 - **`nowarn_removed`** - Turns off warnings for calls to functions that have
   been removed. Default is to emit warnings for every call to a function known

diff --git a/lib/compiler/test/warnings_SUITE.erl b/lib/compiler/test/warnings_SUITE.erl
@@ -731,7 +731,7 @@ maps(Config) when is_list(Config) ->
                  {'EXIT',{badarg,_}} = (catch(M#{ a => 1 })),
                  ok.
            ">>,
-           [],
+           [nowarn_deprecated_catch],
            {warnings,[{{4,48},sys_core_fold,{failed,bad_map_update}}]}},
 	   {bad_map_src2,
            <<"
@@ -741,15 +741,15 @@ maps(Config) when is_list(Config) ->
 		 ok.
 	     id(I) -> I.
            ">>,
-	   [inline],
+	   [inline,nowarn_deprecated_catch],
 	    []},
 	   {bad_map_src3,
            <<"
              t() ->
                  {'EXIT',{badarg,_}} = (catch <<>>#{ a := 1}),
                  ok.
            ">>,
-           [],
+           [nowarn_deprecated_catch],
            {warnings,[{{3,51},sys_core_fold,{failed,bad_map_update}}]}},
            {ok_map_literal_key,
            <<"

diff --git a/lib/debugger/src/Makefile b/lib/debugger/src/Makefile
@@ -87,7 +87,7 @@ APPUP_TARGET = $(EBIN)/$(APPUP_FILE)
 # ----------------------------------------------------
 # FLAGS
 # ----------------------------------------------------
-ERL_COMPILE_FLAGS += -Werror -I $(ERL_TOP)/lib -pa $(ERL_TOP)/lib/wx/ebin
+ERL_COMPILE_FLAGS += -Werror -I $(ERL_TOP)/lib -pa $(ERL_TOP)/lib/wx/ebin +nowarn_deprecated_catch
 
 
 # ----------------------------------------------------

diff --git a/lib/dialyzer/src/dialyzer_dataflow.erl b/lib/dialyzer/src/dialyzer_dataflow.erl
@@ -32,6 +32,8 @@
 -module(dialyzer_dataflow).
 -moduledoc false.
 
+-compile(nowarn_deprecated_catch).
+
 -export([get_fun_types/5, get_warnings/5, format_args/3]).
 
 -include("dialyzer.hrl").

diff --git a/lib/diameter/src/Makefile b/lib/diameter/src/Makefile
@@ -122,7 +122,7 @@ endif
 
 ERL_COMPILE_FLAGS += \
 	+warn_export_vars \
-	+warn_unused_vars \
+	+warn_unused_vars +nowarn_deprecated_catch \
 	$(MISSING_SPEC_DOCUMENTED) \
 	+'{parse_transform,sys_pre_attributes}' \
 	+'{attribute,insert,app_vsn,"$(APP_VSN)"}' \

diff --git a/lib/eldap/src/Makefile b/lib/eldap/src/Makefile
@@ -62,7 +62,7 @@ APP_TARGET = $(EBIN)/$(APP_FILE)
 # ----------------------------------------------------
 # FLAGS
 # ----------------------------------------------------
-ERL_COMPILE_FLAGS += -I../include -I../ebin -Werror
+ERL_COMPILE_FLAGS += -I../include -I../ebin -Werror +nowarn_deprecated_catch
 
 # ----------------------------------------------------
 # Targets

diff --git a/lib/et/examples/Makefile b/lib/et/examples/Makefile
@@ -57,7 +57,7 @@ TARGET_FILES= $(MODULES:%=$(EBIN)/%.$(EMULATOR))
 # ----------------------------------------------------
 # FLAGS
 # ----------------------------------------------------
-ERL_COMPILE_FLAGS += -pa ../../et/ebin +nowarn_missing_doc +nowarn_missing_spec_documented
+ERL_COMPILE_FLAGS += -pa ../../et/ebin +nowarn_missing_doc +nowarn_missing_spec_documented +nowarn_deprecated_catch
 EBIN = .
 
 # ----------------------------------------------------

diff --git a/lib/et/src/Makefile b/lib/et/src/Makefile
@@ -72,7 +72,7 @@ ERL_COMPILE_FLAGS += -pa $(ERL_TOP)/lib/et/ebin \
 		     -pa $(ERL_TOP)/lib/wx/ebin \
 		     -I../include \
 		     -I $(ERL_TOP)/lib \
-		     -Werror
+		     -Werror +nowarn_deprecated_catch
 
 # ----------------------------------------------------
 # Special Build Targets

diff --git a/lib/ftp/src/Makefile b/lib/ftp/src/Makefile
@@ -73,7 +73,7 @@ APPUP_TARGET= $(EBIN)/$(APPUP_FILE)
 # ----------------------------------------------------
 # FLAGS
 # ----------------------------------------------------
-EXTRA_ERLC_FLAGS = +warn_unused_vars
+EXTRA_ERLC_FLAGS = +warn_unused_vars +nowarn_deprecated_catch
 ERL_COMPILE_FLAGS += -I$(ERL_TOP)/lib/kernel/src \
 	-pz $(EBIN) \
 	-pz $(ERL_TOP)/lib/public_key/ebin \

diff --git a/lib/inets/src/inets_app/inets.mk b/lib/inets/src/inets_app/inets.mk
@@ -38,5 +38,5 @@ INETS_APP_VSN_COMPILE_FLAGS = \
 
 INETS_ERL_COMPILE_FLAGS += \
 	-pa $(ERL_TOP)/lib/inets/ebin  \
-	$(INETS_APP_VSN_COMPILE_FLAGS)
+	$(INETS_APP_VSN_COMPILE_FLAGS) +nowarn_deprecated_catch
 
diff --git a/lib/megaco/examples/meas/Makefile.in b/lib/megaco/examples/meas/Makefile.in
@@ -86,7 +86,7 @@ endif
 
 ERL_COMPILE_FLAGS += \
 	-pa $(ERL_TOP)/lib/megaco/ebin \
-	-I../include +nowarn_missing_spec_documented
+	-I../include +nowarn_missing_spec_documented +nowarn_deprecated_catch
 
 DIA_PLT      = megaco_example_meas.plt
 DIA_ANALYSIS = $(basename $(DIA_PLT)).dialyzer_analysis

diff --git a/lib/megaco/examples/simple/Makefile b/lib/megaco/examples/simple/Makefile
@@ -69,7 +69,7 @@ endif
 
 ERL_COMPILE_FLAGS += \
 	-pa $(ERL_TOP)/lib/megaco/ebin \
-	+nowarn_missing_doc +nowarn_missing_spec_documented \
+	+nowarn_missing_doc +nowarn_missing_spec_documented +nowarn_deprecated_catch \
 	-I../../include
 
 ifneq ($(MGC_HOST),)

diff --git a/lib/megaco/src/app/megaco.mk b/lib/megaco/src/app/megaco.mk
@@ -57,5 +57,4 @@ MEGACO_APP_VSN_COMPILE_FLAGS = \
 MEGACO_ERL_COMPILE_FLAGS +=             \
 	-pa $(ERL_TOP)/lib/et/ebin      \
 	-pa $(ERL_TOP)/lib/megaco/ebin  \
-	$(MEGACO_APP_VSN_COMPILE_FLAGS) 
-
+	$(MEGACO_APP_VSN_COMPILE_FLAGS) +nowarn_deprecated_catch
diff --git a/lib/mnesia/src/Makefile b/lib/mnesia/src/Makefile
@@ -98,7 +98,7 @@ APPUP_TARGET= $(EBIN)/$(APPUP_FILE)
 # FLAGS
 # ----------------------------------------------------
 ERL_COMPILE_FLAGS += \
-	-Werror \
+	-Werror +nowarn_deprecated_catch \
 	+'{parse_transform,sys_pre_attributes}' \
 	+'{attribute,insert,vsn,"mnesia_$(MNESIA_VSN)"}'
 

diff --git a/lib/observer/src/Makefile b/lib/observer/src/Makefile
@@ -127,7 +127,7 @@ ERL_COMPILE_FLAGS += \
 	-I ../../../libraries/et/include \
 	-I $(ERL_TOP)/lib \
 	-pa $(ERL_TOP)/lib/wx/ebin \
-	-Werror
+	-Werror +nowarn_deprecated_catch
 
 # ----------------------------------------------------
 # Targets

diff --git a/lib/observer/test/Makefile b/lib/observer/test/Makefile
@@ -64,7 +64,8 @@ RELSYSDIR = $(RELEASE_PATH)/observer_test
 # FLAGS
 # ----------------------------------------------------
 ERL_MAKE_FLAGS +=
-ERL_COMPILE_FLAGS += +warnings_as_errors +nowarn_export_all +nowarn_missing_spec_documented
+ERL_COMPILE_FLAGS += +warnings_as_errors +nowarn_export_all +nowarn_missing_spec_documented +nowarn_deprecated_catch
+
 ERL_COMPILE_FLAGS := $(filter-out +deterministic,$(ERL_COMPILE_FLAGS))
 
 EBIN = .

diff --git a/lib/parsetools/src/Makefile b/lib/parsetools/src/Makefile
@@ -62,7 +62,7 @@ APPUP_TARGET= $(EBIN)/$(APPUP_FILE)
 # FLAGS
 # ----------------------------------------------------
 ERL_COMPILE_FLAGS += -I$(ERL_TOP)/lib/stdlib/include \
-  -Werror
+  -Werror +nowarn_deprecated_catch
 
 # ----------------------------------------------------
 # Targets

diff --git a/lib/public_key/asn1/Makefile b/lib/public_key/asn1/Makefile
@@ -95,7 +95,7 @@ HRL_FILES = $(ASN_HRLS:%=$(INCLUDE)/%)
 # FLAGS
 # ----------------------------------------------------
 EXTRA_ERLC_FLAGS = 
-ERL_COMPILE_FLAGS += $(EXTRA_ERLC_FLAGS)
+ERL_COMPILE_FLAGS += $(EXTRA_ERLC_FLAGS) +nowarn_deprecated_catch
 
 ASN_FLAGS = -bber +der +noobj +asn1config
 

diff --git a/lib/reltool/src/Makefile b/lib/reltool/src/Makefile
@@ -61,7 +61,7 @@ APPUP_TARGET = $(EBIN)/$(APPUP_FILE)
 
 ERL_COMPILE_FLAGS += +'{parse_transform,sys_pre_attributes}' \
                      +'{attribute,insert,app_vsn,$(APP_VSN)}' \
-		     -Werror \
+		     -Werror +nowarn_deprecated_catch \
 		     -I $(ERL_TOP)/lib
 
 # ----------------------------------------------------

diff --git a/lib/runtime_tools/src/Makefile b/lib/runtime_tools/src/Makefile
@@ -76,7 +76,7 @@ ERL_COMPILE_FLAGS += \
 	-I../include \
 	-I ../../et/include \
 	-I ../../../libraries/et/include \
-	-Werror
+	-Werror +nowarn_deprecated_catch
 
 # ----------------------------------------------------
 # Targets

diff --git a/lib/sasl/src/Makefile b/lib/sasl/src/Makefile
@@ -64,7 +64,7 @@ TARGET_FILES= $(MODULES:%=$(EBIN)/%.$(EMULATOR)) $(APP_TARGET) $(APPUP_TARGET)
 # FLAGS
 # ----------------------------------------------------
 
-ERL_COMPILE_FLAGS += -I../../stdlib/include -Werror
+ERL_COMPILE_FLAGS += -I../../stdlib/include -Werror +nowarn_deprecated_catch
 
 
 # ----------------------------------------------------

diff --git a/lib/snmp/examples/ex1/Makefile b/lib/snmp/examples/ex1/Makefile
@@ -44,6 +44,7 @@ ERL_COMPILE_FLAGS += -I../include \
                      +'{attribute,insert,app_vsn,$(APP_VSN)}' \
                      -I$(ERL_TOP)/lib/stdlib \
 		     +nowarn_missing_doc +nowarn_missing_spec_documented \
+                     +nowarn_deprecated_catch \
                      $(SNMP_FLAGS)
 
 # ----------------------------------------------------

diff --git a/lib/snmp/examples/ex2/Makefile b/lib/snmp/examples/ex2/Makefile
@@ -45,6 +45,7 @@ ERL_COMPILE_FLAGS += -I../include \
                      +'{attribute,insert,app_vsn,$(APP_VSN)}' \
                      -I$(ERL_TOP)/lib/stdlib \
 		     +nowarn_missing_doc +nowarn_missing_spec_documented \
+	             +nowarn_deprecated_catch \
                      $(SNMP_FLAGS)
 
 # ----------------------------------------------------

diff --git a/lib/snmp/src/agent/Makefile.in b/lib/snmp/src/agent/Makefile.in
@@ -117,7 +117,7 @@ ERL_COMPILE_FLAGS += -I../../include \
                      +'{attribute,insert,app_vsn,$(APP_VSN)}' \
                      -I$(ERL_TOP)/lib/stdlib \
                      $(SNMP_FLAGS) \
-                     +nowarn_missing_spec_documented
+                     +nowarn_missing_spec_documented +nowarn_deprecated_catch
 
 
 # ----------------------------------------------------

diff --git a/lib/snmp/src/app/Makefile b/lib/snmp/src/app/Makefile
@@ -82,7 +82,7 @@ endif
 # FLAGS
 # ----------------------------------------------------
 
-ERL_COMPILE_FLAGS += -pa $(ERL_TOP)/lib/snmp/ebin
+ERL_COMPILE_FLAGS += -pa $(ERL_TOP)/lib/snmp/ebin +nowarn_deprecated_catch
 
 ifeq ($(SNMP_WARNING_AS_ERROR),)
   ERL_COMPILE_FLAGS += -Werror

diff --git a/lib/snmp/src/compile/Makefile b/lib/snmp/src/compile/Makefile
@@ -61,7 +61,7 @@ PARSER_TARGET = $(PARSER_MODULE).$(EMULATOR)
 # ----------------------------------------------------
 # FLAGS
 # ----------------------------------------------------
-ERL_COMPILE_FLAGS += -pa $(ERL_TOP)/lib/snmp/ebin
+ERL_COMPILE_FLAGS += -pa $(ERL_TOP)/lib/snmp/ebin +nowarn_deprecated_catch
 
 ifeq ($(SNMP_WARNING_AS_ERROR),)
   ERL_COMPILE_FLAGS += -Werror

diff --git a/lib/snmp/src/manager/Makefile b/lib/snmp/src/manager/Makefile
@@ -71,7 +71,7 @@ endif
 # FLAGS
 # ----------------------------------------------------
 
-ERL_COMPILE_FLAGS += -pa $(ERL_TOP)/lib/snmp/ebin
+ERL_COMPILE_FLAGS += -pa $(ERL_TOP)/lib/snmp/ebin +nowarn_deprecated_catch
 
 ifeq ($(SNMP_WARNING_AS_ERROR),)
   ERL_COMPILE_FLAGS += -Werror

diff --git a/lib/snmp/src/misc/Makefile b/lib/snmp/src/misc/Makefile
@@ -71,7 +71,7 @@ endif
 # FLAGS
 # ----------------------------------------------------
 
-ERL_COMPILE_FLAGS += -pa $(ERL_TOP)/lib/snmp/ebin
+ERL_COMPILE_FLAGS += -pa $(ERL_TOP)/lib/snmp/ebin  +nowarn_deprecated_catch
 
 ifeq ($(SNMP_WARNING_AS_ERROR),)
   ERL_COMPILE_FLAGS += -Werror

diff --git a/lib/ssh/src/Makefile b/lib/ssh/src/Makefile
@@ -128,7 +128,7 @@ INTERNAL_HRL_FILES = \
 # ----------------------------------------------------
 # FLAGS
 # ----------------------------------------------------
-EXTRA_ERLC_FLAGS = +warn_unused_vars +nowarn_deprecated_callback
+EXTRA_ERLC_FLAGS = +warn_unused_vars +nowarn_deprecated_callback +nowarn_deprecated_catch
 ERL_COMPILE_FLAGS += -I$(ERL_TOP)/lib/kernel/src \
 	-pz $(EBIN) \
 	-pz $(ERL_TOP)/lib/public_key/ebin \

diff --git a/lib/ssl/src/Makefile b/lib/ssl/src/Makefile
@@ -163,7 +163,7 @@ APPUP_TARGET= $(EBIN)/$(APPUP_FILE)
 # ----------------------------------------------------
 # FLAGS
 # ----------------------------------------------------
-EXTRA_ERLC_FLAGS = +warn_unused_vars -Werror +nowarn_deprecated_callback
+EXTRA_ERLC_FLAGS = +warn_unused_vars -Werror +nowarn_deprecated_callback +nowarn_deprecated_catch
 ERL_COMPILE_FLAGS += -I$(ERL_TOP)/lib/kernel/src \
 	-pz $(EBIN) \
 	-pz $(ERL_TOP)/lib/public_key/ebin \

diff --git a/lib/stdlib/src/erl_lint.erl b/lib/stdlib/src/erl_lint.erl
@@ -844,7 +844,7 @@ bool_options() ->
      {deprecated_function,true},
      {deprecated_type,true},
      {deprecated_callback,true},
-     {deprecated_catch,false},
+     {deprecated_catch,true},
      {obsolete_guard,true},
      {untyped_record,false},
      {missing_spec,false},