curl  "https://www.sync.com/blog/category/desktop/feed/" | xpath '(//channel/item/title)[1]' | sed -E 's/^.* ([0-9.]*) .*$/\1/g'
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0Usage:
/usr/bin/xpath5.30 [options] -e query [-e query...] [filename...]

If no filenames are given, supply XML on STDIN. You must provide at
least one query. Each supplementary query is done in order, the
previous query giving the context of the next one.

Options:

-q quiet, only output the resulting PATH.
-s suffix, use suffix instead of linefeed.
-p postfix, use prefix instead of nothing.
-n Don't use an external DTD.
100 15910    0 15910    0     0  36490      0 --:--:-- --:--:-- --:--:-- 36490
curl: (23) Failed writing body (0 != 2890)

+./Installomator.sh:7082> downloadURL=https://www.sync.com/download/apple/Sync.dmg
+./Installomator.sh:7083> appNewVersion=+./Installomator.sh:7083> appNewVersion=+./Installomator.sh:
7083> curl -fs https://www.sync.com/blog/category/desktop/feed/
+./Installomator.sh:7083> appNewVersion=+./Installomator.sh:7083> sed -E 's/^.* ([0-9.]*) .*$/\1/g'
+./Installomator.sh:7083> appNewVersion=2.2.32
+./Installomator.sh:7084> expectedTeamID=7QR39CMJ3W
+./Installomator.sh:7085> blockingProcesses=( Sync sync-worker.exe )```

I suspect the `-e` piece has to do with the below function, but the fact I don't see `xpath` being referenced in the debug output using `zsh -x` is puzzling:

```# Handling of differences in xpath between Catalina and Big Sur
xpath() {
        # the xpath tool changes in Big Sur and now requires the `-e` option
        if [[ $(sw_vers -buildVersion) > "20A" ]]; then
                /usr/bin/xpath -e $@
                # alternative: switch to xmllint (which is not perl)
                #xmllint --xpath $@ -
        else
                /usr/bin/xpath $@
        fi
}