releases can be found at: https://github.com/ARMmbed/mbedtls/releases - near the top you'll alwys find the latest development release followed by the latest LTS releases. At this point it is unclear if releases are going to stay on github or if they would move to trustedfrimware.org in the future, but if anything changes, we'll announce it.
announcements about new releases and other important project events are made on the new Mbed-tls-announce mailing-list: https://github.com/ARMmbed/mbedtls/releases - if you're already subscribed to mbed-tls (this list), you don't need to subscribe to the "announce" mailing list in addition, as any post to "announce" is automatically cross-posted here ("announce" is for people who want a lower volume list).
I don't think we're currently making announcements about upcoming releases, but I know we considered that. Unfortunately I don't remember the details and the colleague who was working on improving our release process is on leave now. But it we start making such announcements, they'll be on the "announce" list.
We're currently planning 2.16.8 early in September.
If you have a large number of products deployed that depend on Mbed TLS (or indeed any other tf.org project) and would like to be notified in advance of upcoming security fixes, please see the following pages: https://developer.trustedfirmware.org/w/mbed-tls/security-center/ https://developer.trustedfirmware.org/w/collaboration/security_center/reporting/ https://developer.trustedfirmware.org/w/collaboration/security_center/trusted_stakeholder_registration/

I hope this answers your questions, and feel free to ask otherwise.

Manuel.

Hi folks,

I understand that https://tls.mbed.org/ has migrated under the umbrella of https://www.trustedfirmware.org/ but it’s not clear where I should turn to for information about the updates to the LTS versions. The https://tls.mbed.org/tech-updates blog used to announce LTS branch updates but seems defunct as of 2.16.7, and I can’t find equivalent information in https://developer.trustedfirmware.org/w/mbed-tls/roadmap/, https://github.com/ARMmbed/mbedtls/projects/2 or the generic https://www.trustedfirmware.org/blog/.

Is there a new channel for information about upcoming LTS mbedtls releases so that users can plan their appropriate upgrade cycles? E.g. when is 2.16.8 roughly expected to be released? Is the new model for monitoring release announcements reliably going to be as a new tag on https://github.com/ARMmbed/mbedtls/tags?

-Simon