$ alias perlu
alias perlu='perl -Mstrict -Mwarnings -Mautodie=:all -Mutf8 -C -E'

##</code><code>##

...
<description>Feed from a to &#xC3;&#xB6;</description>
...
<title>abc...&#xC3;&#xA5;&#xC3;&#xA4;&#xC3;&#xB6;</title>
...

##</code><code>##

...
<description>Feed from a to &#xF6;</description>
...
<title>abc...&#xC3;&#xA5;&#xC3;&#xA4;&#xC3;&#xB6;</title>
...

##</code><code>##

$ perlu 'say chr hex "F6"'
ö

##</code><code>##

my $entry = XML::Feed::Entry->new();

##</code><code>##

my $entry = XML::Feed::Entry->new('RSS');

##</code><code>##

...
<description>Feed from a to &#xF6;</description>
...
<title>abc...&#xE5;&#xE4;&#xF6;</title>
...

##</code><code>##

$ perlu 'say chr hex for qw{E5 E4 F6}'
å
ä
ö