Doc: update our claims about the minimum recommended AIX version.

We currently have buildfarm members testing back to AIX 7.1,
but not before, and older AIX versions are long out of support
from IBM.  So say that 7.1 is the oldest supported version.

Discussion: https://postgr.es/m/[email protected]

diff --git a/doc/src/sgml/installation.sgml b/doc/src/sgml/installation.sgml
index 1ebe8482bfc3f27c25830b52a567214894138ca5..d38f9bc91601653f90059fce5741a1a24cf3a1c7 100644 (file)
--- a/doc/src/sgml/installation.sgml
+++ b/doc/src/sgml/installation.sgml
@@ -2174,9 +2174,15 @@ export MANPATH
    </indexterm>
 
    <para>
-    PostgreSQL works on AIX, but AIX versions before about 6.1 have
-    various issues and are not recommended.
-    You can use GCC or the native IBM compiler <command>xlc</command>.
+    You can use GCC or the native IBM compiler <command>xlc</command>
+    to build <productname>PostgreSQL</productname>
+    on <productname>AIX</productname>.
+   </para>
+
+   <para>
+    <productname>AIX</productname> versions before 7.1 are no longer
+    tested nor supported by the <productname>PostgreSQL</productname>
+    community.
    </para>
 
    <sect3>