user1485: In Dvoretsky's Endgame Manual, 2nd Edition from 2006 the following important practical rook endgame with a distant passed pawn is analysed. The whole analysis (of the same position with white to move and black to move) is on pages 194-200.
 [Title "White to move"] 
 [SetUp "1"]
 [FEN "8/R4p2/P4kp1/7p/7P/4K1P1/r4P2/8 w - - 0 1"]

 1.Kd4! Rxf2 2. Rc7 Ra2 3. a7 Kf5 4. Kc4!! {Johannes Steckner} Kg4 5. Kb3! Ra6 6. Rc4+ Kxg3 7. Ra4 Rxa7 8. Rxa7 Kxh4 9. Kc3 Kg3 10. Kd2 h4 11. Ke2 Kg2 12. Rxf7 h3 13. Rf2+! Kg3 14. Rf6 +-  

The author claims, with very long analyses to back it up, that white wins after Kd4!, but he warns:

Nothing could be further from my mind than to label the analyses presented [...] as the "last word of theory" - long, complicated variations rarely turn out error-free.

Have there been any new developments since 2006?
I know 11-men tablebases are a long way off, but are we still confident this endgame is a win for white?

user2042: This entire endgame has been analyzed thoroughly on ChessPub. It seems that member Wes was right -> ...g5 is the main move. This was confirmed with a lengthy analysis at ChessCafe -> see the first position on the page ( there are some other games analyzed after the analysis of this position finishes ). I am sorry for posting links but the analysis is huge! 
Good luck and hopefully this answered your question!
Best regards!

1485: <p>In <em>Dvoretsky's Endgame Manual, 2nd Edition</em> from 2006 the following important practical rook endgame with a distant passed pawn is analysed. The whole analysis (of the same position with white to move and black to move) is on pages 194-200.</p>

<pre><code> [Title "White to move"] 
 [SetUp "1"]
 [FEN "8/R4p2/P4kp1/7p/7P/4K1P1/r4P2/8 w - - 0 1"]

 1.Kd4! Rxf2 2. Rc7 Ra2 3. a7 Kf5 4. Kc4!! {Johannes Steckner} Kg4 5. Kb3! Ra6 6. Rc4+ Kxg3 7. Ra4 Rxa7 8. Rxa7 Kxh4 9. Kc3 Kg3 10. Kd2 h4 11. Ke2 Kg2 12. Rxf7 h3 13. Rf2+! Kg3 14. Rf6 +-  
</code></pre>

<p>The author claims, with very long analyses to back it up, that white wins after <code>Kd4!</code>, but he warns:</p>

<blockquote>
  <p>Nothing could be further from my mind than to label the analyses presented [...] as the "last word of theory" - long, complicated variations rarely turn out error-free.</p>
</blockquote>

<p>Have there been any new developments since 2006?</p>

<p>I know 11-men tablebases are a long way off, but are we still confident this endgame is a win for white?</p>
 2042: <p>This entire endgame has been analyzed thoroughly on <a href="http://www.chesspub.com/cgi-bin/yabb2/YaBB.pl?num=1320323463/21" rel="nofollow">ChessPub</a>. It seems that member <em>Wes</em> was right -> <code>...g5</code> is the main move. This was confirmed with a lengthy analysis at <a href="http://www.chesscafe.com/text/mueller132.pdf" rel="nofollow">ChessCafe</a> -> see the first position on the page ( there are some other games analyzed after the analysis of this position finishes ). I am sorry for posting links but the analysis is huge! </p>

<p>Good luck and hopefully this answered your question!</p>

<p>Best regards!</p>
