* Fix bug preventing most `tzk` command-line utilities from running with newer versions of Node.js.
* Some journal support:
* `Journal` tag
* A small table showing people and places linked within each journal entry
* Back and forward buttons for the previous and next journal entry in chronological order on day’s entry
* A Journal tab on the More tab of the sidebar showing the current month’s calendar and a list of journal entries and their `description` fields, if present
* `RecentIdeas` tiddler showing recently created or modified Idea tiddlers.
* Introduction of update statuses to show how recently an idea tiddler was modified; see the `UpdateStatuses` tiddler for details.
* Checkpoint support when editing a tiddler, which will create and save a copy of the tiddler in `$:/checkpoints`, so you can maintain a history of previous relevant states of a tiddler.
* `iex`, `jsub`, and `summarize` utility macros.
* Some types of tiddlers now show an icon next to their title indicating their type.