+ 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.
+
+
+
CHANGES IN APE VERSION 2.3-1
o yule.cov() now fits the null model, and its help page has been
corrected with respect to this change.
+ o drop.tip() has a new option 'rooted' to force (or not) a tree
+ to be treated as (un)rooted.
+
BUG FIXES
o write.tree() failed with objects of class "multiPhylo".
+ o drop.tip(, subtree = TRUE) sometimes shuffled tip labels.
+
OTHER CHANGES