• Add support for HTTP/2 when fetching feeds (#2317)
• Send more default headers when fetching feeds, to avoid being rejected by some servers (#2315)
• Harden the content cleaning of feed entries by only allowing http/https protocols in iframe src attributes
• Fix the header in mobile mode being wrapped/cut off when too wide, even above the mobile breakpoint (#2080)
• Document how to configure Quarkus host validation when running CommaFeed behind a reverse proxy