Docs: Add note about 0.5 changes

README.org

@@ -384,6 +384,8 @@ Expands into a call to ~org-ql-select~ with the same arguments.  For convenience
 
 ** 0.4-pre
 
+/Note:/ The next release, 0.5, may include changes which will require minor updates to written queries (e.g. a few predicates may be renamed).  Users who wish to avoid those changes happening unexpectedly in their configs should avoid upgrading =org-ql= automatically, as they will be pushed to the =master= branch when ready.
+
 *Added*
 +  *Commands*
      -  ~helm-org-ql-views~, which shows one of ~org-ql-views~ selected with Helm.

org-ql.info

@@ -699,7 +699,13 @@ File: README.info,  Node: 04-pre,  Next: 032,  Up: Changelog
 5.1 0.4-pre
 ===========
 
-*Added*
+_Note:_ The next release, 0.5, may include changes which will require
+minor updates to written queries (e.g.  a few predicates may be
+renamed).  Users who wish to avoid those changes happening unexpectedly
+in their configs should avoid upgrading org-ql automatically, as they
+will be pushed to the master branch when ready.
+
+   *Added*
    • *Commands*
         • ‘helm-org-ql-views’, which shows one of ‘org-ql-views’
           selected with Helm.
@@ -1042,18 +1048,18 @@ Node: Agenda-like views18025
 Node: Listing / acting-on results19430
 Node: Changelog24032
 Node: 04-pre24569
-Node: 03227414
+Node: 03227742
-Node: 03127795
+Node: 03128123
-Node: 0327990
+Node: 0328318
-Node: 02330963
+Node: 02331291
-Node: 02231189
+Node: 02231517
-Node: 02131455
+Node: 02131783
-Node: 0231652
+Node: 0231980
-Node: 0135685
+Node: 0136013
-Node: Notes35784
+Node: Notes36112
-Node: Comparison with Org Agenda searches35946
+Node: Comparison with Org Agenda searches36274
-Node: org-sidebar36817
+Node: org-sidebar37145
-Node: License37096
+Node: License37424
 
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