Вся новость - 4.2. Новых пакетов нет, наоборот, релиз служит для чистки кода перед 23 версией. Также в новости нана ссылка на предыдущий релиз.
http://www.gnu.org/software/emacs/NEWS.22.3
Выдержки:
* Changes in Emacs 22.3
** Support for several obsolete platforms will be removed in the next
major version of Emacs: Apollo, Acorn, Alliant, Amdahl, Altos 3068,
Bull DPX/2, Bull SPS-7, AT&T UNIX 7300, AT&T 3b, Aviion Berkeley 4.1
to 4.3, Celerity, Clipper, Convergent S series, Convex, Cydra, DG/UX,
Dual, Elxsi, ESIX, Fujitsu F301, GEC 63, Gould, Honeywell XPS100,
i860, IBM ps/2 aix386, Harris CXUX, Harris Night Hawk 1200/3000,
Harris Power PC, HP 9000 series 200 or 300, HLH Orion, Hitachi
SR2001/SR2201, IBM PS/2, Integrated Solutions 386, Integrated
Solutions Optimum V, Iris, Irix < v6, ISC Unix, ISI 68000, Masscomp
5000, Megatest 68000, Motorola System V/88, ns16000, National
Semiconductor 32000, osf1 (s/osf*) Paragon i860, PFU A-series, Plexus,
Pyramid, RTU 3.0, RISCiX SCO 3.2, sh3el, Sinix, Stride, Sun 1-3, Sun
RoadRunner, Sequent Symmetry, Sony News, SunOS 4, System V rel 0 to 3,
Tadpole 68k machines, tahoe, Tandem Integrity S2, targon31, Tektronix,
TI Nu, NCR Tower 32, U-station, Ultrix, UMAX, UniPlus 5.2, Whitechapel
Computer Works MG1, Wicat, and Xenix.
*** Support for systems without alloca will be removed.
*** Support for Sun windows will be removed.
*** Support for VMS will be removed.
* Incompatible Editing Changes in Emacs 22.3
** The following input methods were removed in Emacs 22.2, but this was
not advertised: danish-alt-postfix, esperanto-alt-postfix,
finnish-alt-postfix, german-alt-postfix, icelandic-alt-postfix,
norwegian-alt-postfix, scandinavian-alt-postfix, spanish-alt-postfix,
and swedish-alt-postfix. Use the versions without "alt-", which are
identical.