--- a/src/Doc/System/Environment.thy Sat Mar 21 15:51:05 2020 +0100
+++ b/src/Doc/System/Environment.thy Sat Mar 21 16:23:20 2020 +0100
@@ -58,7 +58,7 @@
\<^enum> The file \<^path>\<open>$ISABELLE_HOME_USER/etc/settings\<close> (if it
exists) is run in the same way as the site default settings. Note that the
variable @{setting ISABELLE_HOME_USER} has already been set before ---
- usually to something like \<^verbatim>\<open>$USER_HOME/.isabelle/Isabelle2018\<close>.
+ usually to something like \<^verbatim>\<open>$USER_HOME/.isabelle/Isabelle2020\<close>.
Thus individual users may override the site-wide defaults. Typically, a
user settings file contains only a few lines, with some assignments that
@@ -148,7 +148,7 @@
of the @{executable isabelle} executable.
\<^descr>[@{setting_def ISABELLE_IDENTIFIER}\<open>\<^sup>*\<close>] refers to the name of this
- Isabelle distribution, e.g.\ ``\<^verbatim>\<open>Isabelle2018\<close>''.
+ Isabelle distribution, e.g.\ ``\<^verbatim>\<open>Isabelle2020\<close>''.
\<^descr>[@{setting_def ML_SYSTEM}, @{setting_def ML_HOME}, @{setting_def
ML_OPTIONS}, @{setting_def ML_PLATFORM}, @{setting_def ML_IDENTIFIER}\<open>\<^sup>*\<close>]