doc: Expand version compatibility for pg_basebackup features

This updates the paragraph on backwards compatitibility for server
features to include --incremental which only works on servers with
v17 or newer.  Backpatch down to v17 where incremental backup was
added.

Author: David G. Johnston 
Reviewed-by: Daniel Gustafsson 
Discussion: https://postgr.es/m/CAKFQuwZYfZyeTkS3g2Ovw84TsxHa796xnf-u5kfgn_auyxZk0Q@mail.gmail.com
Backpatch-through: 17

diff --git a/doc/src/sgml/ref/pg_basebackup.sgml b/doc/src/sgml/ref/pg_basebackup.sgml
index c2d721208b1d0c0393a28549b3dd357960738691..9659f76042c5b5a9bbcf20b390ea15d684f1f205 100644 (file)
--- a/doc/src/sgml/ref/pg_basebackup.sgml
+++ b/doc/src/sgml/ref/pg_basebackup.sgml
@@ -1005,10 +1005,11 @@ PostgreSQL documentation
 
   
    pg_basebackup works with servers of the same
-   or an older major version, down to 9.1. However, WAL streaming mode (-X
-   stream) only works with server version 9.3 and later, and tar format
+   or older major version, down to 9.1. However, WAL streaming mode (-X
+   stream) only works with server version 9.3 and later, the tar format
    (--format=tar) only works with server version 9.5
-   and later.
+   and later, and incremental backup (--incremental) only works
+   with server version 17 and later.