<p>Maybe a note in Geany's NEWS is enough?  something like</p>
<div class="highlight highlight-source-diff"><pre><span class="pl-mdr">@@ -3,6 +3,10 @@</span> Geany 1.30 (unreleased)
     Internationalization
     * Updated translations: lt
 
<span class="pl-mi1">+    API</span>
<span class="pl-mi1">+    * Remove unprefixed Scintilla structure aliases.  Plugins must use</span>
<span class="pl-mi1">+      the `Sci_`-prefixed version from now on.</span>
<span class="pl-mi1">+</span>
 
 Geany 1.29 (November 13, 2016)
 </pre></div>

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