DOCS: change version references from 0.17.1 to 0.18.0

0.17.1 was never released, so the actual 0.18.0 release takes its place.

DOCS/client-api-changes.rst

@@ -32,7 +32,7 @@ API changes
 
 ::
 
- --- mpv 0.17.1 ---
+ --- mpv 0.18.0 ---
  1.21   - mpv_set_property() changes behavior with MPV_FORMAT_NODE. Before this
           change it rejected mpv_nodes with format==MPV_FORMAT_STRING if the
           property was not a string or did not have special mechanisms in place

DOCS/interface-changes.rst

@@ -19,7 +19,7 @@ Interface changes
 
 ::
 
- --- mpv 0.17.1 ---
+ --- mpv 0.18.0 ---
     - now ab-loops are active even if one of the "ab-loop-a"/"-b" properties is
       unset ("no"), in which case the start of the file is used if the A loop
       point is unset, and the end of the file for an unset B loop point
@@ -27,7 +27,7 @@ Interface changes
       (also needs --embeddedfonts=no)
     - add "hwdec-interop" and "hwdec-current" properties
     - deprecated "hwdec-active" and "hwdec-detected" properties (to be removed
-      in mpv 0.19.0)
+      in mpv 0.20.0)
     - choice option/property values that are "yes" or "no" will now be returned
       as booleans when using the mpv_node functions in the client API, the
       "native" property accessors in Lua, and the JSON API. They can be set as

DOCS/man/input.rst

@@ -1388,7 +1388,7 @@ Property list
     properties to see whether this was successful.
 
     Unlike in mpv 0.9.x and before, this does not return the currently active
-    hardware decoder. Since mpv 0.17.1, ``hwdec-current`` is available for
+    hardware decoder. Since mpv 0.18.0, ``hwdec-current`` is available for
     this purpose.
 
 ``hwdec-current``
@@ -1412,13 +1412,13 @@ Property list
     platform and VO.
 
 ``hwdec-active``
-    Deprecated. To be removed in mpv 0.19.0. Use ``hwdec-current`` instead.
+    Deprecated. To be removed in mpv 0.20.0. Use ``hwdec-current`` instead.
 
     Return ``yes`` or ``no``, depending on whether any type of hardware decoding
     is actually in use.
 
 ``hwdec-detected``
-    Deprecated. To be removed in mpv 0.19.0.
+    Deprecated. To be removed in mpv 0.20.0.
 
     If hardware decoding is active, this returns the hardware decoder in use.
     Otherwise, it returns either ``no``, or if applicable, the currently loaded