This blog is updated daily.
A general description is here.
Saving a graph in TIFF format could crash R (PR#11804).
Rterm in interactive use did not implement R_FlushConsole() fully.
getGraphicsEvent() did not return onMouseMove events while a
mouse button was depressed.
The confirmation of a new frame for a windows() graphics
device works harder to give the device focus, including
bringing it to the top.
glob (used by Sys.glob() and unlink()) was not working correctly
on some filename patterns including non-ASCII characters.
Part of the problem was specific to 2.7.x, part has existed
since 2.5.0.
Sys.glob() returned a UTF-8 result in 2.7.[01] but failed to
mark its encoding.
User menus were not properly removed when a graph window was
closed.
Rscript -e (and Rterm -e) failed on Vista because the MSVCRT
function 'tmpfile' is broken on that platform.
Making a .msi installer now works with WiX 2.0.5805.0 (the file
format had been changed since 2.0.4221.0 as previously tested).
The grid package could set the clipping region outside the
device region, and the windows() device now intersects the two
when setting the clipping region. Once an invalid region was
set, semi-transparent text and lines might have been omitted.
Saving a graph in TIFF format could crash R (PR#11804).
Rterm in interactive use did not implement R_FlushConsole() fully.
getGraphicsEvent() did not return onMouseMove events while a mouse button was depressed.
The confirmation of a new frame for a windows() graphics device works harder to give the device focus, including bringing it to the top.
glob (used by Sys.glob() and unlink()) was not working correctly on some filename patterns including non-ASCII characters. Part of the problem was specific to 2.7.[01], part has existed since 2.5.0.
Sys.glob() returned a UTF-8 result in 2.7.[01] but failed to mark its encoding.
User menus were not properly removed when a graph window was closed.
Rscript -e (and Rterm -e) failed on Vista because the MSVCRT function 'tmpfile' is broken on that platform.
Making a .msi installer now works with WiX 2.0.5805.0 (the file format had been changed since 2.0.4221.0 as previously tested).
The grid package could set the clipping region outside the device region, and the windows() device now intersects the two when setting the clipping region. Once an invalid region was set, semi-transparent text and lines might have been omitted.
Some (but not all) Korean users have been having problems with Korean translations of the RGui menus. These had not been updated for a long time, and have now been removed.
axis() has new arguments 'col.ticks' and 'lwd.ticks' to allow the colour and line width of ticks to be set separately from that of the line (e.g. to set one or the other to transparent or zero width).
legend() has a new argument 'box.col' to set the colour of the enclosing box.
legend() gains a 'xpd' argument to make it easier to place a legend in the margins or outer margins.
stripchart() now passes '...' to title() (as well as to plot.default() and axis()). (Wish of PR#12202)
The automatic placement of legend() with 'title' and a reversed 'x' axis was incorrect. (PR#12019)
pchisq(x, df=0) was always one even for x < 0; similarly for pgamma(x, alpha=0).
add1() and drop1() now return a P-value of NaN in cases with df=0 for test="Chisq" (they gave NaN until pchisq was altered in R 2.6.2).
The default methods of drop1() and add1() now re-evaluate in the object's formula environment, rather than simply in the parent (informal bug report by Werner Stahel).
The undocumented limit of 8191 bytes on comments (from # to the end of the line) in R code has been removed.
edit.data.frame() not longer fails if called on a 0-column data frame and no column is created.
The automatic placement of legend() with 'title' and a
reversed 'x' axis was incorrect. (PR#12019)