diff --git a/README.md b/README.md
index 910c23e0b..e397e670a 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 [Install](#install) • [Documentation] • [FAQ] • [Screenshots] • [Contribute](#contribute)
 
 ![Made with Doom Emacs](https://img.shields.io/github/tag/hlissner/doom-emacs.svg?style=flat-square&label=release&color=58839b)
-![Minimum Emacs version supported: 26.3](https://img.shields.io/badge/Emacs-26.3+-blueviolet.svg?style=flat-square&logo=GNU%20Emacs&logoColor=white)
+![Minimum Emacs version supported: 27.1](https://img.shields.io/badge/Emacs-27.1+-blueviolet.svg?style=flat-square&logo=GNU%20Emacs&logoColor=white)
 ![Latest commit](https://img.shields.io/github/last-commit/hlissner/doom-emacs/develop?style=flat-square)
 ![Build status: develop](https://img.shields.io/github/workflow/status/hlissner/doom-emacs/CI/develop?style=flat-square)
 [![Discord Server](https://img.shields.io/discord/406534637242810369?color=738adb&label=Discord&logo=discord&logoColor=white&style=flat-square)][Discord]
@@ -99,7 +99,7 @@ Check out [the FAQ][FAQ] for answers to common questions about the project.
 
 # Prerequisites
 + Git 2.23+
-+ Emacs 26.3+ (*27.2 is recommended*, or [native-comp](https://www.emacswiki.org/emacs/GccEmacs)).
++ Emacs 27.1+ (*27.2 is recommended*, or [native-comp](https://www.emacswiki.org/emacs/GccEmacs)).
 + [ripgrep] 11.0+
 + GNU `find`
 + *OPTIONAL:* [fd] 7.3.0+ (improves file indexing performance for some commands)
diff --git a/bin/doom b/bin/doom
index f3db7ff5d..00f6e8904 100755
--- a/bin/doom
+++ b/bin/doom
@@ -27,11 +27,11 @@
 ;;
 ;;; Sanity checks
 
-(when (version< emacs-version "26.3")
+(when (version< emacs-version "27.1")
   (error
    (concat "Detected Emacs " emacs-version " (at " (car command-line-args) ").\n\n"
-           "Doom only supports Emacs 26.3 and newer. 27.1 is highly recommended. A guide\n"
-           "to install a newer version of Emacs can be found at:\n\n  "
+           "Doom only supports Emacs 27.1 and newer. A guide to install a newer version\n"
+           "of Emacs can be found at:\n\n  "
            (format "https://doomemacs.org/docs/getting_started.org#%s"
                    (cond ((eq system-type 'darwin) "on-macos")
                          ((memq system-type '(cygwin windows-nt ms-dos)) "on-windows")
diff --git a/core/autoload/themes.el b/core/autoload/themes.el
index 2f890b364..dd5abac85 100644
--- a/core/autoload/themes.el
+++ b/core/autoload/themes.el
@@ -40,9 +40,7 @@ all themes. It will apply to all themes once they are loaded."
        (when (or (get 'doom-theme 'previous-themes)
                  (null doom-theme))
          (funcall #',fn))
-       ;; TODO Append to `doom-load-theme-hook' with DEPTH instead when Emacs
-       ;;      26.x support is dropped.
-       (add-hook 'doom-customize-theme-hook #',fn 'append))))
+       (add-hook 'doom-customize-theme-hook #',fn 100))))
 
 ;;;###autoload
 (defmacro custom-set-faces! (&rest specs)
diff --git a/core/cli/doctor.el b/core/cli/doctor.el
index 7cb3085a4..90740ec15 100644
--- a/core/cli/doctor.el
+++ b/core/cli/doctor.el
@@ -54,11 +54,9 @@ in."
      (warn! "Emacs %s detected" emacs-version)
      (explain! "Doom supports this version, but you are living on the edge! "
                "Be prepared for breakages in future versions of Emacs."))
-    ((= emacs-major-version 26)
-     (warn! "Emacs %s detected" emacs-version)
-     (explain! "Doom is dropping Emacs 26.x support in June 2021. Consider "
-               "upgrading to Emacs 27.1 (or better: 27.2) soon!"
-               emacs-version))))
+    ((< emacs-major-version 27)
+     (error! "Emacs %s detected, Doom only supports 27.1 and newer"
+             emacs-version))))
 
   (print! (start "Checking for Doom's prerequisites..."))
   (print-group!
diff --git a/core/core-lib.el b/core/core-lib.el
index 823836bbe..c1309672d 100644
--- a/core/core-lib.el
+++ b/core/core-lib.el
@@ -625,72 +625,7 @@ testing advice (when combined with `rotate-text').
 ;;
 ;;; Backports
 
-(eval-when! (version< emacs-version "27.0.90")
-  ;; DEPRECATED Backported from Emacs 27
-  (defmacro setq-local (&rest pairs)
-    "Make variables in PAIRS buffer-local and assign them the corresponding values.
-
-PAIRS is a list of variable/value pairs.  For each variable, make
-it buffer-local and assign it the corresponding value.  The
-variables are literal symbols and should not be quoted.
-
-The second VALUE is not computed until after the first VARIABLE
-is set, and so on; each VALUE can use the new value of variables
-set earlier in the ‘setq-local’.  The return value of the
-‘setq-local’ form is the value of the last VALUE.
-
-\(fn [VARIABLE VALUE]...)"
-    (declare (debug setq))
-    (unless (zerop (mod (length pairs) 2))
-      (error "PAIRS must have an even number of variable/value members"))
-    (let ((expr nil))
-      (while pairs
-        (unless (symbolp (car pairs))
-          (error "Attempting to set a non-symbol: %s" (car pairs)))
-        ;; Can't use backquote here, it's too early in the bootstrap.
-        (setq expr
-              (cons
-               (list 'set
-                     (list 'make-local-variable (list 'quote (car pairs)))
-                     (car (cdr pairs)))
-               expr))
-        (setq pairs (cdr (cdr pairs))))
-      (macroexp-progn (nreverse expr)))))
-
-(eval-when! (version< emacs-version "27.1")
-  ;; DEPRECATED Backported from Emacs 27. Remove when 26.x support is dropped.
-  (defun executable-find (command &optional remote)
-    "Search for COMMAND in `exec-path' and return the absolute file name.
-Return nil if COMMAND is not found anywhere in `exec-path'.  If
-REMOTE is non-nil, search on the remote host indicated by
-`default-directory' instead."
-    (if (and remote (file-remote-p default-directory))
-        (let ((res (locate-file
-                    command
-                    (mapcar
-                     (lambda (x) (concat (file-remote-p default-directory) x))
-                     (exec-path))
-                    exec-suffixes 'file-executable-p)))
-          (when (stringp res) (file-local-name res)))
-      ;; Use 1 rather than file-executable-p to better match the
-      ;; behavior of call-process.
-      (let ((default-directory
-              (let (file-name-handler-alist)
-                (file-name-quote default-directory))))
-        (locate-file command exec-path exec-suffixes 1)))))
-
-(eval-when! (not (fboundp 'exec-path))
-  ;; DEPRECATED Backported from Emacs 27.1. Remove when 26.x support is dropped.
-  (defun exec-path ()
-    "Return list of directories to search programs to run in remote subprocesses.
-The remote host is identified by `default-directory'.  For remote
-hosts that do not support subprocesses, this returns `nil'.
-If `default-directory' is a local directory, this function returns
-the value of the variable `exec-path'."
-    (let ((handler (find-file-name-handler default-directory 'exec-path)))
-      (if handler
-          (funcall handler 'exec-path)
-        exec-path))))
+;; None at the moment!
 
 (provide 'core-lib)
 ;;; core-lib.el ends here
diff --git a/core/core-ui.el b/core/core-ui.el
index 5fda13a4d..3aa3a13d3 100644
--- a/core/core-ui.el
+++ b/core/core-ui.el
@@ -667,16 +667,17 @@ windows, switch to `doom-fallback-buffer'. Otherwise, delegate to original
   (dolist (fn '(switch-to-buffer display-buffer))
     (advice-add fn :around #'doom-run-switch-buffer-hooks-a)))
 
+;; Apply `doom-font' et co
+(add-hook 'doom-after-init-modules-hook #'doom-init-fonts-h -100)
+
 ;; Apply `doom-theme'
 (add-hook (if (daemonp)
               'after-make-frame-functions
             'doom-after-init-modules-hook)
-          #'doom-init-theme-h)
+          #'doom-init-theme-h
+          -90)
 
-;; Apply `doom-font' et co
-(add-hook 'doom-after-init-modules-hook #'doom-init-fonts-h)
-
-(add-hook 'window-setup-hook #'doom-init-ui-h 'append)
+(add-hook 'window-setup-hook #'doom-init-ui-h 100)
 
 
 ;;
@@ -702,25 +703,11 @@ windows, switch to `doom-fallback-buffer'. Otherwise, delegate to original
   (fset 'define-fringe-bitmap #'ignore))
 
 (after! whitespace
-  (defun doom-disable-whitespace-mode-in-childframes-a (orig-fn)
+  (defun doom-is-childframes-p ()
     "`whitespace-mode' inundates child frames with whitespace markers, so
 disable it to fix all that visual noise."
-    (unless (frame-parameter nil 'parent-frame)
-      (funcall orig-fn)))
-  (add-function :around whitespace-enable-predicate #'doom-disable-whitespace-mode-in-childframes-a))
-
-;; Don't display messages in the minibuffer when using the minibuffer
-;; DEPRECATED Remove when Emacs 26.x support is dropped.
-(eval-when! (not EMACS27+)
-  (defmacro doom-silence-motion-key (command key)
-    (let ((key-command (intern (format "doom/silent-%s" command))))
-      `(progn
-         (defun ,key-command ()
-           (interactive)
-           (ignore-errors (call-interactively ',command)))
-         (define-key minibuffer-local-map (kbd ,key) #',key-command))))
-  (doom-silence-motion-key backward-delete-char "<backspace>")
-  (doom-silence-motion-key delete-char "<delete>"))
+    (frame-parameter nil 'parent-frame))
+  (add-function :before-while whitespace-enable-predicate #'doom-is-childframes-p))
 
 (provide 'core-ui)
 ;;; core-ui.el ends here
diff --git a/core/core.el b/core/core.el
index 466095cf6..d2f4b7ac0 100644
--- a/core/core.el
+++ b/core/core.el
@@ -3,7 +3,7 @@
 ;;
 ;;; Initialize internal state
 
-(defconst doom-version "2.0.9"
+(defconst doom-version "3.0.0-alpha"
   "Current version of Doom Emacs.")
 
 (defvar doom-init-p nil
@@ -355,7 +355,6 @@ config.el instead."
       (when (boundp 'libgnutls-version)
         (concat "SECURE128:+SECURE192:-VERS-ALL"
                 (if (and (not IS-WINDOWS)
-                         (not (version< emacs-version "26.3"))
                          (>= libgnutls-version 30605))
                     ":+VERS-TLS1.3")
                 ":+VERS-TLS1.2"))
diff --git a/core/packages.el b/core/packages.el
index 39995500a..a3900c0ea 100644
--- a/core/packages.el
+++ b/core/packages.el
@@ -17,7 +17,7 @@
             :branch ,straight-repository-branch
             :local-repo "straight.el"
             :files ("straight*.el"))
-  :pin "915707ff5139cbfaf5f1aecd881ce0abaaddcecc")
+  :pin "b45dd00408ff8e922f2d7f75441fd5603e5222fa")
 
 ;; core-modules.el
 (package! use-package
@@ -25,7 +25,7 @@
   :pin "a7422fb8ab1baee19adb2717b5b47b9c3812a84c")
 
 ;; core-ui.el
-(package! all-the-icons :pin "facbde4a7be292bf9490932cbe403b443273f45d")
+(package! all-the-icons :pin "9d97c074b08000eacefc03ebc5dadbdc33888cc2")
 (package! hide-mode-line :pin "88888825b5b27b300683e662fa3be88d954b1cea")
 (package! highlight-numbers :pin "8b4744c7f46c72b1d3d599d4fb75ef8183dee307")
 (package! rainbow-delimiters :pin "d576e6694ad3a3e88b2bb1363305b38fa364c149")
@@ -37,8 +37,6 @@
 (package! helpful :pin "7e4b1f0d5572a4e2b8ee7a9b084ef863d0315a73")
 (package! pcre2el :pin "0b5b2a2c173aab3fd14aac6cf5e90ad3bf58fa7d")
 (package! smartparens :pin "911cc896a0f2eb8b5fbdd6fc8331523ad9889a3a")
-;; DEPRECATED Built into Emacs 27+; remove when we drop 26 support
-(package! so-long :built-in 'prefer :pin "1da43ed63b5f9a8188eb8107bbad842d10831537")
 (package! ws-butler
   ;; Use my fork of ws-butler, which has a few choice improvements and
   ;; optimizations (the original has been abandoned).
@@ -46,9 +44,9 @@
   :pin "2bb49d3ee7d2cba133bc7e9cdac416cd1c5e4fe0")
 
 ;; core-projects.el
-(package! projectile :pin "5e6fdabd59ec5507c1d54f3b11ee16ddc05821d3")
+(package! projectile :pin "da08a9103b5ba3b38ef031a9627a19436eb318b5")
 (package! project :pin "4072f35d85bf0a1c669329d66633e4819f497c1c")
 
 ;; core-keybinds.el
 (package! general :pin "a0b17d207badf462311b2eef7c065b884462cb7c")
-(package! which-key :pin "fc29864395fdaf688e2ef5111831663bad89a020")
+(package! which-key :pin "27d9fec33abb989b030f7677ccf5f799287d6472")
diff --git a/docs/faq.org b/docs/faq.org
index c38d74ba0..c5abbd996 100644
--- a/docs/faq.org
+++ b/docs/faq.org
@@ -1174,8 +1174,7 @@ If you still want to restore the old behavior, simply disable evil-snipe-mode:
 
 #+BEGIN_SRC emacs-lisp
 ;; in ~/.doom.d/config.el
-(after! evil-snipe
-  (evil-snipe-mode -1))
+(remove-hook 'doom-first-input-hook #'evil-snipe-mode)
 #+END_SRC
 
 ** Changes to my config aren't taking effect
diff --git a/docs/getting_started.org b/docs/getting_started.org
index 1d476212a..84dcef48a 100644
--- a/docs/getting_started.org
+++ b/docs/getting_started.org
@@ -97,7 +97,7 @@ us know!
 This is what you'll have installed by the end of this section:
 
 - Git 2.23+
-- Emacs 26.3+ *(27.2 is recommended, or [[https://www.emacswiki.org/emacs/GccEmacs][native-comp]])*
+- Emacs 27.1+ *(27.2 is recommended, or [[https://www.emacswiki.org/emacs/GccEmacs][native-comp]])*
 - [[https://github.com/BurntSushi/ripgrep][ripgrep]] 11.0+
 - GNU Find
 - (Optional) [[https://github.com/sharkdp/fd][fd]] 7.3.0+ (known as ~fd-find~ on Debian, Ubuntu & derivatives) --
@@ -107,20 +107,15 @@ These packages ought to be available through the package managers of your
 operating system; i.e. homebrew & macports on macOS, scoop/chocolatey on
 Windows, or pacman/aptitude/etc on the various Linux distributions.
 
-#+begin_quote
-While Doom does claim to support 26.x, 27.x is recommended because it is faster,
-especially for LSP users. The installation guides below will touch on installing
-27 if there is a simple way to do so on that particular operating system.
-#+end_quote
-
 ** Emacs & dependencies
 *** On Linux
-In the unusual case that Emacs 26.x is unavailable through your package manager,
-you'll have to [[https://www.gnu.org/software/emacs/manual/html_node/efaq/Installing-Emacs.html][build it from source]], but here are installation instructions for many popular Linux distributions:
+Installation instructions for Emacs 27.1+ are listed below for many popular
+Linux distributions. In the unusual case that 27.1 or newer is unavailable on
+your system, you'll have to [[https://www.gnu.org/software/emacs/manual/html_node/efaq/Installing-Emacs.html][build it from source]] instead.
 
 **** Ubuntu
-Emacs 27.x is not available through Ubuntu's package manager out-of-the-box. To
-get around this you'll need to install Emacs through a PPA:
+Emacs 27.x is not available through Ubuntu's package manager out-of-the-box, but
+is available through a PPA:
 
 #+BEGIN_SRC bash
 add-apt-repository ppa:kelleyk/emacs
@@ -164,8 +159,9 @@ pacman -S fd
 The above installs Emacs 27 (at the time of writing).
 
 **** NixOS
-On NixOS Emacs 26.3 can be installed via ~nix-env -Ai nixos.emacs~, or
+On NixOS Emacs 27.2 can be installed via ~nix-env -Ai nixos.emacs~, or
 permanently with the following added to ~etc/nixos/configuration.nix~:
+
 #+BEGIN_SRC nix
 environment.systemPackages = with pkgs; [
   # required dependencies
@@ -191,7 +187,7 @@ environment.systemPackages = [
 #+END_SRC
 
 **** openSUSE
-***** Emacs 26.3
+***** Emacs 27.1
 Emacs can be installed from the [[https://software.opensuse.org/download.html?project=editors&package=emacs][package list]], or manually via zypper.
 
 For example, to install on openSUSE Leap 15.1 (requires root):
@@ -202,7 +198,7 @@ zypper install emacs
 #+END_SRC
 
 If you already have an older version of Emacs installed, you will be prompted to
-install the update candidate (Emacs 26.3).
+install the update candidate (Emacs 27.1).
 
 ***** ripgrep
 Download ripgrep 11.0.2 from [[https://software.opensuse.org/download/package?package=ripgrep&project=openSUSE%3AFactory][the package list]] or installed manually (requires
@@ -305,16 +301,16 @@ Or by replacing ~/usr/local/bin/emacs~ with a shim script containing:
 There are some suggestions on how to speed it up later in this section.
 #+end_quote
 
-There are three methods for installing Emacs 26.x on Windows, each with their
+There are three methods for installing Emacs 27.x on Windows, each with their
 pros and cons:
 
 + With chocolatey/scoop
 + With a precompiled binary + Git Bash
-+ With WSL + Ubuntu
++ With WSL2 + Ubuntu
 
-If you don't know which to choose, I recommend WSL; it produces the fastest and
-most stable environment of the three, but has the most complex installation
-process.
+If you don't know which to choose, I highly recommend WSL; it produces the
+fastest and most stable environment of the three, but has the most complex
+installation process.
 
 Before moving on to installing Emacs et co, a few steps to prepare Windows for
 Emacs are necessary:
@@ -405,7 +401,7 @@ bin/doom command.
    #+BEGIN_SRC sh
    sudo add-apt-repository ppa:kelleyk/emacs
    sudo apt update
-   sudo apt install emacs26
+   sudo apt install emacs27
    #+END_SRC
 7. Then Doom's dependencies:
    #+BEGIN_SRC sh
diff --git a/docs/modules.org b/docs/modules.org
index aa01b5a3d..fb3b50274 100644
--- a/docs/modules.org
+++ b/docs/modules.org
@@ -203,7 +203,6 @@ Aesthetic modules that affect the Emacs interface or user experience.
 + [[file:../modules/ui/doom-dashboard/README.org][doom-dashboard]] - TODO
 + [[file:../modules/ui/doom-quit/README.org][doom-quit]] - TODO
 + [[file:../modules/ui/emoji/README.org][emoji]] =+ascii +github +unicode= - Adds emoji support to Emacs
-+ [[file:../modules/ui/fill-column/README.org][fill-column]] - TODO
 + [[file:../modules/ui/hl-todo/README.org][hl-todo]] - TODO
 + [[file:../modules/ui/hydra/README.org][hydra]] - TODO
 + indent-guides - TODO
diff --git a/init.example.el b/init.example.el
index db540a956..21381a1cd 100644
--- a/init.example.el
+++ b/init.example.el
@@ -31,7 +31,6 @@
        doom-dashboard    ; a nifty splash screen for Emacs
        doom-quit         ; DOOM quit-message prompts when you quit Emacs
        ;;(emoji +unicode)  ; 🙂
-       ;;fill-column       ; a `fill-column' indicator
        hl-todo           ; highlight TODO/FIXME/NOTE/DEPRECATED/HACK/REVIEW
        ;;hydra
        ;;indent-guides     ; highlighted indent columns
@@ -93,7 +92,7 @@
        (eval +overlay)     ; run code, run (also, repls)
        ;;gist              ; interacting with github gists
        lookup              ; navigate your code and its documentation
-       ;;lsp
+       ;;lsp               ; M-x vscode
        magit             ; a git porcelain for Emacs
        ;;make              ; run make tasks from Emacs
        ;;pass              ; password manager for nerds
diff --git a/modules/config/default/+emacs-bindings.el b/modules/config/default/+emacs-bindings.el
index cb9f5ac15..7820f54bf 100644
--- a/modules/config/default/+emacs-bindings.el
+++ b/modules/config/default/+emacs-bindings.el
@@ -325,7 +325,7 @@
         :desc "Magit blame"                "B"   #'magit-blame-addition
         :desc "Magit clone"                "C"   #'magit-clone
         :desc "Magit fetch"                "F"   #'magit-fetch
-        :desc "Magit buffer log"           "L"   #'magit-log
+        :desc "Magit buffer log"           "L"   #'magit-log-buffer-file
         :desc "Git stage file"             "S"   #'magit-stage-file
         :desc "Git unstage file"           "U"   #'magit-unstage-file
         (:prefix ("f" . "find")
diff --git a/modules/config/default/+evil-bindings.el b/modules/config/default/+evil-bindings.el
index 3d1368bd5..ff8728650 100644
--- a/modules/config/default/+evil-bindings.el
+++ b/modules/config/default/+evil-bindings.el
@@ -445,7 +445,7 @@
         :desc "Magit blame"               "B"   #'magit-blame-addition
         :desc "Magit clone"               "C"   #'magit-clone
         :desc "Magit fetch"               "F"   #'magit-fetch
-        :desc "Magit buffer log"          "L"   #'magit-log
+        :desc "Magit buffer log"          "L"   #'magit-log-buffer-file
         :desc "Git stage file"            "S"   #'magit-stage-file
         :desc "Git unstage file"          "U"   #'magit-unstage-file
         (:prefix ("f" . "find")
diff --git a/modules/editor/evil/README.org b/modules/editor/evil/README.org
index c1417337d..42470287d 100644
--- a/modules/editor/evil/README.org
+++ b/modules/editor/evil/README.org
@@ -172,8 +172,8 @@ vim-seek/vim-sneak for 2-character versions of f/F/t/T).
 
 To disable evil-snipe on s/S, you can either:
 
-1. Disable ~evil-snipe-mode~ by adding ~(after! evil-snipe (evil-snipe-mode
-   -1))~ to =$DOOMDIR/config.el=,
+1. Disable ~evil-snipe-mode~ by adding ~(remove-hook 'doom-first-input-hook
+   #'evil-snipe-mode)~ to =$DOOMDIR/config.el=,
 2. Or disable =evil-snipe= completely with ~(package! evil-snipe :disable t)~
    added to =$DOOMDIR/packages.el=, but this will also disable incremental
    highlighting for the f/F/t/T motions keys.
diff --git a/modules/lang/common-lisp/config.el b/modules/lang/common-lisp/config.el
index 86f9ef1be..3601644a6 100644
--- a/modules/lang/common-lisp/config.el
+++ b/modules/lang/common-lisp/config.el
@@ -16,6 +16,13 @@
 (use-package! sly
   :hook (lisp-mode-local-vars . sly-editing-mode)
   :init
+  ;; I moved this hook to `lisp-mode-local-vars', so it only affects
+  ;; `lisp-mode', and not every other derived lisp mode (like `fennel-mode').
+  ;; We run it twice because the hook is both autoloaded and evaluated at
+  ;; load-time, so it must be removed twice.
+  (after! (:or emacs sly)
+    (remove-hook 'lisp-mode-hook #'sly-editing-mode))
+
   (after! lisp-mode
     (set-repl-handler! 'lisp-mode #'sly-mrepl)
     (set-eval-handler! 'lisp-mode #'sly-eval-region)
diff --git a/modules/lang/org/config.el b/modules/lang/org/config.el
index d1be26089..8c43f2d62 100644
--- a/modules/lang/org/config.el
+++ b/modules/lang/org/config.el
@@ -274,16 +274,7 @@ Also adds support for a `:sync' parameter to override `:async'."
     ;; TODO Should be fixed upstream
     (let ((default-directory (org-find-library-dir "org-contribdir")))
       (setq org-ditaa-jar-path     (expand-file-name "scripts/ditaa.jar")
-            org-ditaa-eps-jar-path (expand-file-name "scripts/DitaaEps.jar"))))
-
-  ;; NOTE Backported from Emacs 27.1
-  ;; DEPRECATED Remove when 26.x support is dropped
-  (unless EMACS27+
-    (defadvice! +org--dont-suppress-window-changes-a (orig-fn &rest args)
-      :around #'org-babel-execute:emacs-lisp
-      (letf! ((#'current-window-configuration #'ignore)
-              (#'set-window-configuration #'ignore))
-        (apply orig-fn args)))))
+            org-ditaa-eps-jar-path (expand-file-name "scripts/DitaaEps.jar")))))
 
 
 (defun +org-init-babel-lazy-loader-h ()
diff --git a/modules/os/tty/README.org b/modules/os/tty/README.org
index 11d8cce00..b18ce9434 100644
--- a/modules/os/tty/README.org
+++ b/modules/os/tty/README.org
@@ -56,59 +56,11 @@ need:
 
 * Configuration
 ** True-color and italic support
-#+begin_quote
-This advice only applies to Emacs 26.x. True color support is [[https://github.com/emacs-mirror/emacs/commit/7f6153d9563cfe7753083996f59eacc9f4c694df][built into 27.1+
-and newer]].
-#+end_quote
+Emacs 26.3 users should consult [[https://github.com/syl20bnr/spacemacs/wiki/Terminal][the spacemacs wiki]] for details on achieving true
+color support in terminal Emacs.
 
-(credit goes to [[https://github.com/syl20bnr/spacemacs/wiki/Terminal][the spacemacs wiki]] for this information)
-
-Create a =xterm-24bit.terminfo= file with the following contents:
-
-#+BEGIN_SRC text
-xterm-24bit|xterm with 24-bit direct color mode,
-   use=xterm-256color,
-   sitm=\E[3m,
-   ritm=\E[23m,
-   setb24=\E[48;2;%p1%{65536}%/%d;%p1%{256}%/%{255}%&%d;%p1%{255}%&%dm,
-   setf24=\E[38;2;%p1%{65536}%/%d;%p1%{256}%/%{255}%&%d;%p1%{255}%&%dm,
-#+END_SRC
-
-#+begin_quote
-WARNING: Make sure you have a newline at end of file otherwise you will get
-errors!
-#+end_quote
-
-Execute the following command on the command line:
-#+BEGIN_SRC sh
-tic -x -o ~/.terminfo xterm-24bit.terminfo
-#+END_SRC
-
-Now set your ~$TERM~ variable to ~xterm-24bit~:
-#+BEGIN_SRC sh
-export TERM=xterm-24bit
-#+END_SRC
-
-SSH might break if your remote machine does not have the same setup, you can
-work around this with the following alias.
-#+BEGIN_SRC sh
-alias ssh="TERM=xterm-256color ssh"
-#+END_SRC
-
-If you use tmux, you need to make sure you installed a version with truecolor
-support, then add the following lines to your `.tmux.conf`:
-#+BEGIN_SRC conf
-set -g default-terminal "xterm-24bit"
-set -g terminal-overrides ',xterm-24bit:Tc'
-#+END_SRC
-
-Also, make sure you have utf8 language variables if you want all characters to
-display correctly. For example:
-#+BEGIN_SRC bash
-export LC_ALL=en_US.UTF-8
-export LANG=en_US.UTF-8
-export LANGUAGE=en_US.UTF-8
-#+END_SRC
+Emacs 27.x users don't need todo anything, as true color support is [[https://github.com/emacs-mirror/emacs/commit/7f6153d9563cfe7753083996f59eacc9f4c694df][built into
+27.1+ and newer]].
 
 * Troubleshooting
 # Common issues and their solution, or places to look for help.
diff --git a/modules/term/eshell/config.el b/modules/term/eshell/config.el
index 2748f61c7..c47dea24b 100644
--- a/modules/term/eshell/config.el
+++ b/modules/term/eshell/config.el
@@ -26,7 +26,7 @@ buffer.")
 (defvar +eshell-aliases
   '(("q"  "exit")           ; built-in
     ("f"  "find-file $1")
-    ("ff" "find-file $1")
+    ("ff" "find-file-other-window $1")
     ("d"  "dired $1")
     ("bd" "eshell-up $1")
     ("rg" "rg --color=always $*")
diff --git a/modules/tools/direnv/config.el b/modules/tools/direnv/config.el
index e3e4a0753..f434f1b37 100644
--- a/modules/tools/direnv/config.el
+++ b/modules/tools/direnv/config.el
@@ -2,56 +2,36 @@
 
 (use-package! envrc
   :when (executable-find "direnv")
-  :after-call doom-first-file-hook
+  :hook (doom-first-file . envrc-global-mode)
   :config
   (add-to-list 'doom-debug-variables 'envrc-debug)
 
   (set-popup-rule! "^\\*envrc\\*" :quit t :ttl 0)
 
-  ;; I'm avoiding `global-envrc-mode' intentionally, because it has the
-  ;; potential to run too late in the mode startup process (and after, say,
-  ;; server hooks that may rely on that local direnv environment).
-  (add-hook! 'change-major-mode-after-body-hook
-    (defun +direnv-init-h ()
-      (unless (or envrc-mode
-                  (minibufferp)
-                  (file-remote-p default-directory))
-        (condition-case _
-            (envrc-mode 1)
-          (quit)))))
-
-  ;; Ensure these local variables survive major mode changes, so envrc-mode is
-  ;; only "activated" once per buffer.
-  (put 'envrc-mode 'permanent-local t)
-  (put 'envrc--status 'permanent-local t)
-  (put 'process-environment 'permanent-local t)
-  (put 'exec-path 'permanent-local t)
-  (put 'eshell-path-env 'permanent-local t)
+  ;; A globalized minor mode triggers on `after-change-major-mode-hook'
+  ;; normally, which runs after a major mode's body and hooks. If those hooks do
+  ;; any initialization work that's sensitive to environmental state set up by
+  ;; direnv, then you're gonna have a bad time, so I move the trigger to
+  ;; `change-major-mode-after-body-hook' instead. This runs before said hooks
+  ;; (but not the body; fingers crossed that no major mode does important env
+  ;; initialization there).
+  (add-hook! 'envrc-global-mode-hook
+    (defun +direnv-init-global-mode-earlier-h ()
+      (let ((fn #'envrc-global-mode-enable-in-buffers))
+        (if (not envrc-global-mode)
+            (remove-hook 'change-major-mode-after-body-hook fn)
+          (remove-hook 'after-change-major-mode-hook fn)
+          (add-hook 'change-major-mode-after-body-hook fn 100)))))
 
   (defadvice! +direnv--fail-gracefully-a (&rest _)
     "Don't try to use direnv if the executable isn't present."
     :before-while #'envrc-mode
-    (or (executable-find "direnv")
+    (or (get 'envrc-mode 'direnv-executable)
+        (put 'envrc-mode 'direnv-executable (executable-find "direnv" t))
         (ignore (doom-log "Couldn't find direnv executable"))))
 
-  ;; HACK envrc-mode only affects the current buffer's environment, which is
-  ;;      generally what we want, except when we're running babel blocks in
-  ;;      org-mode, because there may be state or envvars those blocks need to
-  ;;      read. In order to perpetuate the org buffer's environment into the
-  ;;      execution of the babel block we need to temporarily change the global
-  ;;      environment. Let's hope it runs quickly enough that its effects aren't
-  ;;      felt in other buffers in the meantime!
-  (defvar +direnv--old-environment nil)
-  (defadvice! +direnv-persist-environment-a (orig-fn &rest args)
-    :around #'org-babel-execute-src-block
-    (if +direnv--old-environment
-        (apply orig-fn args)
-      (setq-default +direnv--old-environment
-                    (cons (default-value 'process-environment)
-                          (default-value 'exec-path))
-                    exec-path exec-path
-                    process-environment process-environment)
-      (unwind-protect (apply orig-fn args)
-        (setq-default process-environment (car +direnv--old-environment)
-                      exec-path (cdr +direnv--old-environment)
-                      +direnv--old-environment nil)))))
+  ;; Ensure babel's execution environment matches the host buffer's.
+  (advice-add #'org-babel-execute-src-block :around #'envrc-propagate-environment)
+
+  ;; Make sure any envrc changes are propagated after a `doom/reload'
+  (add-hook 'doom-after-reload-hook #'envrc-reload-all))
diff --git a/modules/tools/lsp/+lsp.el b/modules/tools/lsp/+lsp.el
index c16b89645..40e8f4c55 100644
--- a/modules/tools/lsp/+lsp.el
+++ b/modules/tools/lsp/+lsp.el
@@ -183,9 +183,9 @@ instead is more sensible."
         ;; and there is a bug preventing Flycheck errors from being shown (the
         ;; errors flash briefly and then disappear).
         lsp-ui-sideline-show-hover nil
-        ;; Some icons don't scale correctly on Emacs 26, so disable them there.
-        lsp-ui-sideline-actions-icon  ; DEPRECATED Remove later
-        (if EMACS27+ lsp-ui-sideline-actions-icon-default)
+        ;; Re-enable icon scaling (it's disabled by default upstream for Emacs
+        ;; 26.x compatibility; see emacs-lsp/lsp-ui#573)
+        lsp-ui-sideline-actions-icon lsp-ui-sideline-actions-icon-default
         ;; REVIEW Temporarily disabled, due to immense slowness on every
         ;;        keypress. See emacs-lsp/lsp-ui#613
         lsp-ui-doc-enable nil)
diff --git a/modules/tools/pass/packages.el b/modules/tools/pass/packages.el
index 488e5e559..e97d7f042 100644
--- a/modules/tools/pass/packages.el
+++ b/modules/tools/pass/packages.el
@@ -5,12 +5,6 @@
 (package! password-store :pin "4e73cdc4c376ad61d2e4858bc87cf01eab0dd403")
 (package! password-store-otp :pin "04998c8578a060ab4a4e8f46f2ee0aafad4ab4d5")
 
-;; an older version of `auto-source-pass' is built into Emacs 26+, so we must
-;; install the new version directly from the source and with a psuedonym.
-(package! auth-source-pass
-  :recipe (:host github :repo "DamienCassou/auth-password-store")
-  :pin "fa8b964494c1ef42035fad340ff5f29fcdbed21c")
-
 (when (featurep! :completion ivy)
   (package! ivy-pass :pin "5b523de1151f2109fdd6a8114d0af12eef83d3c5"))
 (when (featurep! :completion helm)
diff --git a/modules/tools/pdf/config.el b/modules/tools/pdf/config.el
index 002aa7256..429ee818e 100644
--- a/modules/tools/pdf/config.el
+++ b/modules/tools/pdf/config.el
@@ -72,56 +72,6 @@
                (add-hook 'doom-switch-buffer-hook #'+pdf-reload-midnight-minor-mode-h
                          nil 'local))))))
 
-  ;; Add retina support for MacOS users
-  (eval-when! IS-MAC
-    (defun +pdf-view-create-page-a (page &optional window)
-      "Create an image of PAGE for display on WINDOW."
-      :override #'pdf-view-create-page
-      (let* ((size (pdf-view-desired-image-size page window))
-             (width (if (not (pdf-view-use-scaling-p))
-                        (car size)
-                      (* 2 (car size))))
-             (data (pdf-cache-renderpage
-                    page width width))
-             (hotspots (pdf-view-apply-hotspot-functions
-                        window page size)))
-        (pdf-view-create-image data
-                               :width width
-                               :scale (if (pdf-view-use-scaling-p) 0.5 1)
-                               :map hotspots
-                               :pointer 'arrow)))
-
-    (defvar +pdf--scaled-p nil)
-    (defadvice! +pdf--scale-up-on-retina-display-a (orig-fn &rest args)
-      "Scale up the PDF on retina displays."
-      :around #'pdf-util-frame-scale-factor
-      (cond ((not pdf-view-use-scaling) 1)
-            ((and (memq (pdf-view-image-type) '(imagemagick image-io))
-                  (fboundp 'frame-monitor-attributes))
-             (funcall orig-fn))
-            ;; Add special support for retina displays on MacOS
-            ((and (eq (framep-on-display) 'ns)
-                  (not +pdf--scaled-p)
-                  EMACS27+)
-             (setq-local +pdf--scaled-p t)
-             2)
-            (1)))
-
-    (defadvice! +pdf--use-scaling-on-ns-a ()
-      :before-until #'pdf-view-use-scaling-p
-      (and (eq (framep-on-display) 'ns)
-           EMACS27+))
-
-    (defadvice! +pdf--supply-width-to-create-image-calls-a (orig-fn &rest args)
-      :around '(pdf-annot-show-annotation
-                pdf-isearch-hl-matches
-                pdf-view-display-region)
-      (letf! (defun create-image (file-or-data &optional type data-p &rest props)
-               (apply create-image file-or-data type data-p
-                      :width (car (pdf-view-image-size))
-                      props))
-        (apply orig-fn args))))
-
   ;; Silence "File *.pdf is large (X MiB), really open?" prompts for pdfs
   (defadvice! +pdf-suppress-large-file-prompts-a (orig-fn size op-type filename &optional offer-raw)
     :around #'abort-if-file-too-large
diff --git a/modules/tools/pdf/packages.el b/modules/tools/pdf/packages.el
index f35026492..832e66af9 100644
--- a/modules/tools/pdf/packages.el
+++ b/modules/tools/pdf/packages.el
@@ -1,9 +1,5 @@
 ;; -*- no-byte-compile: t; -*-
 ;;; tools/pdf/packages.el
 
-(package! pdf-tools
-  :recipe (:host github
-           :repo "vedang/pdf-tools")
-  :pin "d262cf9e19d57c6567e06e51d109150c20753839")
-
+(package! pdf-tools :pin "5f77dae43eb8f71e52e10ba8cf994883f74c3fb7")
 (package! saveplace-pdf-view :pin "54ed966b842501c3c092dbf57b372e37b033c578")
diff --git a/modules/ui/fill-column/README.org b/modules/ui/fill-column/README.org
deleted file mode 100644
index f58c8abcc..000000000
--- a/modules/ui/fill-column/README.org
+++ /dev/null
@@ -1,92 +0,0 @@
-#+TITLE:   ui/fill-column
-#+DATE:    August 23, 2020
-#+SINCE:   2.0.9
-#+STARTUP: inlineimages nofold
-
-* Table of Contents :TOC_3:noexport:
-- [[#description][Description]]
-  - [[#maintainers][Maintainers]]
-  - [[#module-flags][Module Flags]]
-  - [[#plugins][Plugins]]
-- [[#prerequisites][Prerequisites]]
-- [[#features][Features]]
-- [[#configuration][Configuration]]
-  - [[#setting-fill-column-globally][Setting fill-column globally]]
-  - [[#setting-fill-column-for-the-current-buffer-or-mode][Setting fill-column for the current buffer or mode]]
-  - [[#hl-fill-column-only-configuring-the-look-of-the-indicator][(hl-fill-column only) Configuring the look of the indicator]]
-- [[#troubleshooting][Troubleshooting]]
-
-* Description
-This module provides a fill column indicator to make it obvious when a line
-reaches or surpasses the 80th column. This serves as a reminder to keep lines
-short for accessibility and/or convenience. [[https://www.emacswiki.org/emacs/EightyColumnRule][Read more about this on the Emacs
-Wiki page]].
-
-#+begin_quote
-This module is deprecated and will be removed once Doom drops Emacs 26.x
-support. This is because the built-in ~display-fill-column-indicator-mode~ (in
-27 and newer) replaces it, and enabling it is a trivial one-liner, which doesn't
-warrant a module: ~(global-display-fill-column-indicator-mode +1)~
-#+end_quote
-
-** Maintainers
-This module has no dedicated maintainers.
-
-** Module Flags
-This module provides no flags.
-
-** Plugins
-+ [[https://github.com/laishulu/hl-fill-column][hl-fill-column]]* (unless Emacs >=27)
-
-* Prerequisites
-This module has no prerequisites.
-
-* Features
-The behavior of this module varies slightly depending on your version of Emacs:
-
-+ In Emacs 26.x, text beyond ~fill-column~ will be highlighted.
-+ In Emacs 27 and newer, a line is drawn down the right side at column 80.
-
-* Configuration
-** Setting fill-column globally
-This column limit is controlled by the ~fill-column~ variable (default: ~80~).
-
-This variable is buffer-local, therefore, to change this globally, you must use
-~setq-default~:
-
-#+BEGIN_SRC emacs-lisp
-(setq-default fill-column 100)
-#+END_SRC
-
-~hl-fill-column-mode~ (or ~display-fill-column-indicator-mode~ on Emacs 27+)
-must be restarted to see the change.
-
-** Setting fill-column for the current buffer or mode
-The ~setq-hook!~ convenience macro makes settings ~fill-column~ for a particular
-mode (or modes) easy:
-
-#+BEGIN_SRC emacs-lisp
-(setq-hook! 'org-mode-hook fill-column 100)
-(setq-hook! 'python-mode-hook fill-column 72)
-(setq-hook! js2-mode fill-column 72)
-(setq-hook! '(ruby-mode rustic-mode python-mode-hook) fill-column 80)
-#+END_SRC
-
-Any open buffers in these modes must be restarted to see the change.
-
-** (hl-fill-column only) Configuring the look of the indicator
-To change the appears of hl-fill-column's highlight, change the
-~hl-fill-column-face~ face. Doom provides the ~custom-set-faces!~ macro to help
-you do this:
-
-#+BEGIN_SRC emacs-lisp
-(custom-set-faces!
-  '(hl-fill-column-face :background "red"
-                        :foreground "blue"
-                        :inverse-video t))
-#+END_SRC
-
-See =M-x helpful-function RET custom-set-faces\!= for demos and documentation
-for this macro.
-
-* TODO Troubleshooting
diff --git a/modules/ui/fill-column/autoload.el b/modules/ui/fill-column/autoload.el
deleted file mode 100644
index a5cc28861..000000000
--- a/modules/ui/fill-column/autoload.el
+++ /dev/null
@@ -1,15 +0,0 @@
-;;; ui/fill-column/autoload.el -*- lexical-binding: t; -*-
-
-;;;###autoload
-(defalias '+fill-column/toggle
-  (if (fboundp 'display-fill-column-indicator-mode)
-      #'display-fill-column-indicator-mode  ; Emacs 27 only
-    (autoload 'hl-fill-column-mode "hl-fill-column" nil t)
-    #'hl-fill-column-mode))
-
-;;;###autoload
-(defalias '+fill-column-enable-h #'+fill-column/toggle)
-
-;;;###autoload
-(add-hook! '(text-mode-hook prog-mode-hook conf-mode-hook)
-           #'+fill-column-enable-h)
diff --git a/modules/ui/fill-column/packages.el b/modules/ui/fill-column/packages.el
deleted file mode 100644
index 12420f96a..000000000
--- a/modules/ui/fill-column/packages.el
+++ /dev/null
@@ -1,6 +0,0 @@
-;; -*- no-byte-compile: t; -*-
-;;; ui/fill-column/packages.el
-
-;; `hl-fill-column' is only used on Emacs versions before 27
-(unless (fboundp 'display-fill-column-indicator-mode)
-  (package! hl-fill-column :pin "5782a91ba0182c4e562fa0db6379ff9dd472856b"))