* Changes in Emacs 24.5
** This is mainly a bug-fix release, but there are some other changes.
** The default value of `history-length' has increased to 100.
** The variable `redisplay-dont-pause' is obsolete.
* Changes in Specialized Modes and Packages in Emacs 24.5
** `call-process-shell-command' and `process-file-shell-command' no longer
take "&rest args".
** The option `browse-url-firefox-startup-arguments' no longer has an effect.
*** New option `erc-rename-buffers'.
*** New faces `erc-my-nick-prefix-face' and `erc-nick-prefix-face'.
*** `erc-format-@nick' displays all user modes instead of only op and voice.
*** The display of irc commands in the current buffer has been disabled.
*** `erc-version' now follows the Emacs version.
** Obsolete packages
*** crisp.el (moved to elpa.gnu.org)
*** tpu-edt.el, ws-mode.el
These emulations of old editors are believed to be no longer relevant
- contact email@example.com if you disagree.
*** vi.el, vip.el (try M-x viper instead)
...and here's what we're looking forward to in 25.1 (corrected): http://git.savannah.gnu.org/cgit/emacs.git/plain/etc/NEWS
Package.el will attempt to download asynchronously by default. `package-selected-packages` tracks user-installed packages vs. dependencies of other packages. `package-autoremove` will remove packages that were installed as dependencies but no longer used. New minor mode enabled by default, `global-eldoc-mode`. Eww can render HTML with variable-width fonts. Good stuff. :)
The web is ready for replacement. We need an alternative. A new place for all the cool kids to hang out.
This link is 404 as of this comment:
Example 1: a repository is local by definition and if you work alone you can back it up to your USB disk and never push it to any remote.
Example 2: there are many ways to send diffs to other developers. Push is one of them but you can also use git-format-patch and git-send-email together to mail them to your team.
There are so many of precompiled dependencies available for 32-bit, but last time I checked, it's not the case for 64-bit, so you have to resort to compiling those dependencies as well. Though this situation may now be better, but that was major issues when I looked into 64-bit before.
In general, I've found the platform integrations of Aquamacs to not be worth the trouble and package incompatibilities that they appear to introduce. I'm not using OS X these days, but up until a couple of months ago, I tended to use either the "Emacs for OSX" distribution, or compile my own via Homebrew.
I think it's pretty common for people to recommend using one of the more "vanilla" versions of GNU Emacs over Aquamacs these days.