Csound

New Opcodes:
tabsum - to sum sections of ftables
p5glove - (but) not working very well yet
MixerSetLevel_i - an init-time only version of MixerSetLevel
wiimote opcodes - allow game controller to be read directly in Csound
mp3in - like diskin but reads MP3 files
doppler - details to follow
filebit - reports bit size of files

Modified Opcodes and Gens:
Added rounding bin code to pvsscale
Added NP2 support for ftload and ftsave
GEN23 totally rewritten to be more consistent in what constitues
a separator and comments. (Still no /* */ comments)

Bugs fixed:
Use of automatic numbering of ftables reuses table numbers
seed with positive argument was wrong
sprints with an empty string printed wrong data
mute now works with both numeric and named instruments
Comments in new parser fixed
Byteorder in loading files fixed
Small fixes in diskin, and in tablexkt

System Changes:
Revised Windows installer
SConstruct now builds completely independent shared libraries
for Python, Lua, and Java wrappers.
New Parser almost usable
Redrawing of graphs fixed so that only selected ones get redrawn.
RT-0alsa more forgiving on near sample rates
It is possible to have the score generated bu an external program
rather than using standard score format using
to call the program translater on the
score data
lpc_export fixed
Removed limit on macro names length
PMAX, the number of arguments to a score event has been reduced
by 2, and an overflow system introduced so GENs can have
arbitrary numbers of arguments. This is not complete for gens 51
and 52, and possibly others.

API:
Increased API version to 2.1.
New API function pointer ldmemfile2withCB() which is
a version of ldmemfile() allowing a callback to be set and called
exactly once to process the MEMFIL buffer after it is loaded.
csound->floatsize set; zero in earlier versions
GetChannelLock added

Internal:
usual collection of gratuitous minor changes, layout and comments

API

The major version is increased to 2; affected csound.so as well (see note below)

Bug Fixes

diskin bug fixed
outo was broken regarding channel 6
pitchamdf had bugs
zfilter_i was broken
islider32bit14 never worked
Other bugs fixed that have not been reported publically.

New Opcodes and Gens

GEN20 type 6 now has option to set variance
sone GEN as a plugin to mimic gen13 in Music360 (this may change in detail)
ephasor -- new opcode

Other

Dither on output implemented; rectangular and triangular dither available in some cases
Locale set to C numeric to avoid , versus . problems
Using "a" as the MIDI port in PortMIDI listens on all

Internals

Time now counted internally in samples, overcoming a longstanding bug with rounding of time to k-rate
Many internal changes related to branch prediction. Some opcodes are substantially quicker.

Note on API Change

The API version has been increased to 2.0. This means that Csound 5.10 is incompatible with applications ("front ends", "clients", or "hosts") that were built for Csound 5.08 and earlier and that use API version 1.x. These
applications will need to be rebuilt to work with the current and future versions of Csound. Csound front ends written in interpreted languages such as Python or Java may continue to work without modification. It may also be
possible to keep both an earlier version of the Csound library and an API 2.0 version on the same machine together so that new and old Csound-based applications can run side-by-side. These changes do not in any way affect
the compatibility of Csound orchestras and scores: all old documents should continue to work as before.