diff --git a/package.json b/package.json
index 9d89efce..7cbeb939 100644
--- a/package.json
+++ b/package.json
@@ -15,11 +15,11 @@
   },
   "license": "MIT",
   "dependencies": {
-    "@abaplint/cli": "^2.113.125",
+    "@abaplint/cli": "^2.113.133",
     "@abaplint/database-pg": "^2.10.24",
     "@abaplint/database-sqlite": "^2.10.24",
-    "@abaplint/runtime": "^2.10.58",
-    "@abaplint/transpiler-cli": "^2.10.58",
+    "@abaplint/runtime": "^2.10.61",
+    "@abaplint/transpiler-cli": "^2.10.61",
     "0x": "^5.8.0"
   }
 }
diff --git a/src/demo/cl_demo_output.clas.abap b/src/demo/cl_demo_output.clas.abap
index 5d8ab0a4..3da03f60 100644
--- a/src/demo/cl_demo_output.clas.abap
+++ b/src/demo/cl_demo_output.clas.abap
@@ -17,9 +17,33 @@ CLASS cl_demo_output DEFINITION PUBLIC.
       IMPORTING
         data TYPE any OPTIONAL
         name TYPE string OPTIONAL PREFERRED PARAMETER data.
+
+    CLASS-METHODS display_html
+      IMPORTING
+        html TYPE csequence.
+
+    CLASS-METHODS display_text
+      IMPORTING
+        text TYPE clike.
+
+    CLASS-METHODS display_json
+      IMPORTING
+        json TYPE simple.
 ENDCLASS.
 
 CLASS cl_demo_output IMPLEMENTATION.
+  METHOD display_json.
+    ASSERT 1 = 'not supported'.
+  ENDMETHOD.
+
+  METHOD display_text.
+    ASSERT 1 = 'not supported'.
+  ENDMETHOD.
+
+  METHOD display_html.
+    ASSERT 1 = 'not supported'.
+  ENDMETHOD.
+
   METHOD write.
     ASSERT 1 = 'not supported'.
   ENDMETHOD.
diff --git a/src/http/if_http_client.intf.abap b/src/http/if_http_client.intf.abap
index d5ecef74..0b2b5316 100644
--- a/src/http/if_http_client.intf.abap
+++ b/src/http/if_http_client.intf.abap
@@ -38,8 +38,10 @@ INTERFACE if_http_client PUBLIC.
 
   METHODS get_last_error
     EXPORTING
-      code    TYPE i
-      message TYPE string.
+      code           TYPE sysubrc
+      message        TYPE string
+      message_class  TYPE t100-arbgb
+      message_number TYPE t100-msgnr.
 
   METHODS refresh_request.
 
diff --git a/src/json/#ui2#cl_json.clas.abap b/src/json/#ui2#cl_json.clas.abap
index 945ea634..e661a5ae 100644
--- a/src/json/#ui2#cl_json.clas.abap
+++ b/src/json/#ui2#cl_json.clas.abap
@@ -9,9 +9,15 @@ CLASS /ui2/cl_json DEFINITION PUBLIC.
                  camel_case TYPE string VALUE 'camel_case',
                END OF pretty_mode.
 
-    TYPES tribool TYPE c LENGTH 1.
     TYPES bool TYPE c LENGTH 1.
 
+    CONSTANTS: BEGIN OF c_bool,
+                 true  TYPE bool VALUE `X`,
+                 false TYPE bool VALUE ``,
+               END OF c_bool.
+
+    TYPES tribool TYPE c LENGTH 1.
+
     CLASS-METHODS raw_to_string
       IMPORTING
         iv_xstring       TYPE xstring