+ CHANGES IN APE VERSION 2.3-3
+
+
+BUG FIXES
+
+ o add.scale.bar() always drew a horizontal bar.
+
+ o zoom() shuffled tips with unrooted trees.
+
+ o write.nexus() failed to write correctly trees with a "TipLabel"
+ attribute.
+
+ o rcoal() failed to compute branch lengths with very large n.
+
+ o A small bug was fixed in compar.cheverud() (thanks to Michael
+ Phelan for the fix).
+
+ o seg.sites() failed when passing a vector.
+
+ o drop.tip() sometimes shuffled tip labels.
+
+ o root() shuffled node labels with 'resolve.root = TRUE'.
+
+
+
+ CHANGES IN APE VERSION 2.3-2
+
+
+BUG FIXES
+
+ o all.equal.phylo() did not compare unrooted trees correctly.
+
+ o dist.topo(... method = "PH85") did not treat unrooted trees
+ correctly (thanks to Tim Wallstrom for the fix).
+
+ o root() sometimes failed to test for the monophyly of the
+ outgroup correctly.
+
+ o extract.clade() sometimes included too many edges.
+
+ o vcv.phylo() did not work correctly when the tree is in
+ "pruningwise" order.
+
+ o nj() did not handle correctly distance matrices with many 0's.
+ The code has also been significantly improved: 7, 70, 160 times
+ faster with n = 100, 500, 1000, respectively.
+
+
+