Thunderbird Flatpak remains on ESR instead of Release Channel (ESR128toRelease)

Hi there, I'm using Thunderbird on Linux and would like to know if there is a timeline for when the official Flatpak will be switched from ESR to Release Channel. There was a mention in an article on the Thunderbird blog (https://blog.thunderbird.net/2025/03/thunderbird-release-channel-update/) about the release version being available as Flatpak "in the future" but since this was almost three months ago, I was wondering if there is an update regarding this. I'm aware that I can either install Thunderbird manually or use the beta Flatpak (which already seems to be on release channel) but I would much prefer to use the stable Flatpak. Thanks!