Documentation updates

README.md

@@ -9,6 +9,18 @@ operations.
 
 `repmgr 4` is a complete rewrite of the existing `repmgr` codebase.
 
+Supports PostgreSQL 9.3 and later.
+
+Building from source
+--------------------
+
+Simply:
+
+    ./configure && make install
+
+Ensure `pg_config` for the target PostgreSQL version is in `$PATH`.
+
+
 Commands
 --------
 
@@ -29,7 +41,10 @@ Currently available:
 Backwards compatibility
 -----------------------
 
-`repmgr` is now implemented as a PostgreSQL extension.
+See also: doc/changes-in-repmgr4.md
+
+`repmgr` is now implemented as a PostgreSQL extension. NOTE: no need to
+install the extension, this will be done automatically by `repmgr master register`.
 
 Metadata tables have been revised and are not backwards-compatible
 with 3.x. (however future DDL updates will be easier as they can be

doc/changes-in-repmgr4.md

@@ -2,13 +2,23 @@
 New command line options
 ------------------------
 
-- --dry-run: repmgr will attempt to perform the action as far as possible
+- `--dry-run`: repmgr will attempt to perform the action as far as possible
    without making any changes to the database
 
 Changed command line options
 ----------------------------
 
-- --replication-user is now passed when registering the master server (and
+
+### repmgr
+
+- `--replication-user` is now passed when registering the master server (and
   optionally when registering a standby), *not* during standby clone/follow.
   The value (defaults to the user in the conninfo string) will be stored in
-  the repmgr metadata for use by  standby clone/follow..
+  the repmgr metadata for use by  standby clone/follow..
+
+### repmgrd
+
+- `--monitoring-history` is deprecated and has been replaced by the
+  configuration file option `monitoring_history`. This enables the
+  setting to be changed without having to modify system service files.
+