<section name="Release 12.1.1">

<div class="releaseDate">26.10.2025</div>

<p>Bug fixes:</p>

<ul>

<li>

Incorrect encoding in non-English properties files causing garbled characters in

localized messages.

Author: Vinisha Wagh

<a href="https://github.com/checkstyle/checkstyle/issues/17975">#17975</a>

</li>

<li>

Google style config and formatter differ on blank line separation.

Author: daksh

<a href="https://github.com/checkstyle/checkstyle/issues/17681">#17681</a>

</li>

<li>

some messages are still hardcoded in english.

Author: Vinisha Wagh

<a href="https://github.com/checkstyle/checkstyle/issues/3110">#3110</a>

</li>

</ul>

<p>Notes:</p>

<ul>

<li>

Update `JavadocCommentsTokenTypes.java` to new format of AST print.

Author: Andrei Mititelu, Stoyan, Aryant, daksh

<a href="https://github.com/checkstyle/checkstyle/issues/17882">#17882</a>

</li>

<li>

Add `rewrite` support for `errorprone.refasterrules`.

Author: Vincent Potucek

<a href="https://github.com/checkstyle/checkstyle/issues/17487">#17487</a>

</li>

<li>

avoid horizontal scrolling in atclauseorder.html.

Author: ANISETTY AKASH

<a href="https://github.com/checkstyle/checkstyle/issues/17939">#17939</a>

</li>

<li>

Wrong tagOrder in AtClauseOrder documentation..

Author: Hariom

<a href="https://github.com/checkstyle/checkstyle/issues/10086">#10086</a>

</li>

<li>

Resolve error-prone violations.

Author: atharv

<a href="https://github.com/checkstyle/checkstyle/issues/17845">#17845</a>

</li>

<li>

Enforce file size on Java inputs.

Author: ivanmalutin

<a href="https://github.com/checkstyle/checkstyle/issues/11163">#11163</a>

</li>

<li>

Cover pitest survivals with tests.

Author: gianmarco

<a href="https://github.com/checkstyle/checkstyle/issues/14019">#14019</a>

</li>

<li>

Define violation messages for all violations.

Author: ivanmalutin

<a href="https://github.com/checkstyle/checkstyle/issues/15456">#15456</a>

</li>

<li>

SLF4J configuration warnings when running tests.

Author: Allon Mureinik

<a href="https://github.com/checkstyle/checkstyle/issues/17956">#17956</a>

</li>

<li>

JVM warnings when running tests.

Author: Allon Mureinik

<a href="https://github.com/checkstyle/checkstyle/issues/17954">#17954</a>

</li>

</ul>

</section>