Since upgrading to emacs 26.1 (because emacs 25 has problems with pegging the cpu on mac), I get some weird problems with slime. Is anyone else using slime with emacs 26.1?

Here is an example problem I have.

Debugger entered--Lisp error: (void-function slime-changelog-date)

slime-changelog-date()

slime-startup-message()

slime-repl-update-banner()

slime-init-output-buffer(#<process SLIME Lisp>)

slime-repl-connected-hook-function()

run-hooks(slime-connected-hook)

slime-set-connection-info( ... stuff deleted ....)

But when I look in the function slime-startup-message, there is no mention of slime-changelog-date.

(defun slime-startup-message ()

(when slime-header-line-p

(setq header-line-format

(format "%s Port: %s Pid: %s"

(slime-lisp-implementation-type)

(slime-connection-port (slime-connection))

(slime-pid))))

(when (zerop (buffer-size))

(let ((welcome (concat "; SLIME " slime-version)))

(if slime-startup-animation

(animate-string welcome 0 0)

(insert welcome)))))