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Notable Emacs news

#emacs

Emacs 29

  • Adjust font size globally: C-x C-M-+ (global-text-scale-adjust)
  • You can now hit M-X after having hit M-x, without first exiting the M-x prompt.
  • key M-SPC now bound to cycle-spacing, instead of just-one-space
    • related new command: ensure-empty-lines
  • new frame parameter: alpha-background
  • new mode: pixel-scroll-precision-mode
  • NO LONGER RECOMMENDED: so-long-mode!
  • new command: find-sibling-file
    • I often use custom commands I call "my-find-next-file-in-dir" and "my-next-buffer-of-same-mode"; this sounds like a similar idea. Though now I also discovered ff-find-related-file and better-jumper-jump-backward.
  • new command: rename-visited-file
  • new command: help-quick
  • new hotkeys in help buffers!
    • n(next) p(prev) e(edit)
    • see option: help-enable-variable-value-editing
  • when point is on any image anywhere, there are commands to manipulate it under the i prefix
    • See M-x describe-keymap image-slice-map.
  • image-dired is faster now
  • image-dired slideshow on S
  • in image-dired, marking an image in the display buffer shows the next image
  • new theme: leuven-dark
  • new fn: setopt (like Doom's setq!)
  • new fns: buffer-match-p and match-buffers
  • describe-buffer-bindings no longer prints tons of "Prefix Command"
    • relevant to me, because my package deianira looks it up
    • controlled by option describe-bindings-show-prefix-commands
  • new fn: key-valid-p
  • new fn: key-parse that always returns vector output unlike kbd,
    • but (key-parse "<TAB>") and (key-parse "TAB") still differ
  • new fn: keymap-set instead of define-key
  • new fn: keymap-lookup instead of lookup-key and key-binding
  • new fn: define-keymap
  • new fn: defvar-keymap
  • M-x shortdoc RET keymaps RET
  • new fn: org-get-title
  • Whoops! "The Gtk selection face is no longer used for the region. The combination of a Gtk-controlled background and a foreground color controlled by the internal Emacs machinery led to low-contrast faces in common default setups. Emacs now uses the same 'region' face on Gtk and non-Gtk setups." That may be why I've been confused with results when attempting to theme that face.
  • new option battery-update-functions can trigger actions based on battery status
  • new fn pixel-fill-region should let you refill variable-pitch text more consistently
  • new option eww-auto-rename-buffer
  • new option proced-enable-color-flag
  • new package: eglot
  • new package: tree-sitter
  • new fn: string-edit
  • new fn: file-name-split
  • new fn: file-name-parent-directory
    • no more of this hairy expression: (car (last (split-string (file-name-directory FILE) "/" t))!
  • new fn: with-undo-amalgamate
    • maybe we can use this instead of disabling undo entirely in some commands

Emacs 28

  • New mode: context-menu-mode
  • New mode: repeat-mode
  • eval-last-sexp now actually does re-eval defvars!
  • C-x x a new keymap for "buffer actions"
  • C-x 5 5: other-frame-prefix! no more multitude of *-other-frame. is there an embark "postfix" instead of prefix?
  • C-x t t: similar to above but for other tab
  • describe-keymap useful for e.g. image-dired-map or ess-mode-map
  • toggle-truncate-lines now disables visual-line-mode
  • M-o prefix gone!
  • M-x shell now uses pop-to-buffer-same-window, consistent w/ eshell
  • eshell-mode-map loads normally (no need for an eval-after-load to modify the keymap)
  • new option: use-short-answers
  • new option: abbrev-suggest

What links here

  • 2021-08-11
Created (2 years ago)
Showing 524 to 527