diff --git a/Makefile b/Makefile
index 0594d43..92183ab 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 MODULES = set_user
 
 EXTENSION = set_user
-DATA = set_user--1.6.sql set_user--1.5--1.6.sql set_user--1.4--1.5.sql set_user--1.1--1.4.sql set_user--1.0--1.1.sql
+DATA = set_user--2.0.sql set_user--1.6--2.0.sql set_user--1.5--1.6.sql set_user--1.4--1.5.sql set_user--1.1--1.4.sql set_user--1.0--1.1.sql
 PGFILEDESC = "set_user - similar to SET ROLE but with added logging"
 
 REGRESS = set_user
diff --git a/README.md b/README.md
index eb48d2f..8d3c575 100644
--- a/README.md
+++ b/README.md
@@ -705,13 +705,16 @@ OR
 (0 rows)
 ```
 
-## TODO
+## NOTES
 
-The following changes/enhancements are contemplated:
+### Version 2.0.0
 
-* Improve regression tests
-* Add ability to create dependencies in `shared_preload_libraries` such that
-  extension order does not matter.
+- Use of GUCs with `whitelist` have been deprecated in lieu of a more
+  appropriate `allowlist`. The last GUC set by `ALTER SYSTEM` will be used on
+  reload, the first attempt to `SHOW` a deprecated variable will provide a
+  NOTICE.
+
+- The extension is now non-relocatable and all functions are schema-qualified.
 
 ##  Licensing
 
diff --git a/set_user--1.6--2.0.sql b/set_user--1.6--2.0.sql
new file mode 100644
index 0000000..0a03887
--- /dev/null
+++ b/set_user--1.6--2.0.sql
@@ -0,0 +1,6 @@
+/* set-user-1.6--2.0.sql */
+
+-- complain if script is sourced in psql, rather than via ALTER EXTENSION
+\echo Use "ALTER EXTENSION set_user UPDATE to '2.0'" to load this file. \quit
+
+-- just bumping our version to 2.0. no new sql function features here, so nothing to do.
diff --git a/set_user--2.0.sql b/set_user--2.0.sql
new file mode 100644
index 0000000..be9dab4
--- /dev/null
+++ b/set_user--2.0.sql
@@ -0,0 +1,45 @@
+/* set-user--2.0.sql */
+
+SET LOCAL search_path to @extschema@;
+
+-- complain if script is sourced in psql, rather than via CREATE EXTENSION
+\echo Use "CREATE EXTENSION set_user" to load this file. \quit
+
+CREATE FUNCTION @extschema@.set_user(text)
+RETURNS text
+AS 'MODULE_PATHNAME', 'set_user'
+LANGUAGE C;
+
+CREATE FUNCTION @extschema@.set_user(text, text)
+RETURNS text
+AS 'MODULE_PATHNAME', 'set_user'
+LANGUAGE C STRICT;
+
+REVOKE EXECUTE ON FUNCTION @extschema@.set_user(text) FROM PUBLIC;
+REVOKE EXECUTE ON FUNCTION @extschema@.set_user(text, text) FROM PUBLIC;
+
+CREATE FUNCTION @extschema@.reset_user()
+RETURNS text
+AS 'MODULE_PATHNAME', 'set_user'
+LANGUAGE C;
+
+CREATE FUNCTION @extschema@.reset_user(text)
+RETURNS text
+AS 'MODULE_PATHNAME', 'set_user'
+LANGUAGE C STRICT;
+
+GRANT EXECUTE ON FUNCTION @extschema@.reset_user() TO PUBLIC;
+GRANT EXECUTE ON FUNCTION @extschema@.reset_user(text) TO PUBLIC;
+
+/* New functions in 1.1 (now 1.4) begin here */
+
+CREATE FUNCTION @extschema@.set_user_u(text)
+RETURNS text
+AS 'MODULE_PATHNAME', 'set_user'
+LANGUAGE C STRICT;
+
+REVOKE EXECUTE ON FUNCTION @extschema@.set_user_u(text) FROM PUBLIC;
+
+/* No new sql functions for 1.5 */
+/* No new sql functions for 1.6 */
+/* No new sql functions for 2.0 */
diff --git a/set_user.control b/set_user.control
index 8e504b2..fa499f8 100644
--- a/set_user.control
+++ b/set_user.control
@@ -1,5 +1,5 @@
 # set_user extension
 comment = 'similar to SET ROLE but with added logging'
-default_version = '1.6'
+default_version = '2.0'
 module_pathname = '$libdir/set_user'
 relocatable = false