Tails 4.10 fixes many security issues that affect Tails 4.9. You should upgrade to Tails 4.10 as soon as possible.

• Tor Browser: Mozilla Foundation Security Advisory 2020-37
• Thunderbird: Mozilla Foundation Security Advisory 2020-31
• Linux: CVE-2020-15780, CVE-2020-15393, CVE-2020-10781, CVE-2020-15852
• webkit2gtk: Debian Security Advisory 4739
• net-snmp: Debian Security Advisory 4746
• json-c: Debian Security Advisory 4741