Tue, 31 May 2022 12:48:12 +0200 wenzelm redundant (after f28aee3ad1e6): self_update already takes care of currently active Isabelle clone;
Mon, 30 May 2022 22:34:45 +0200 wenzelm clarified options;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -2 +2 +10 +30 +100 +300 +1000 +3000 tip