[tor-talk] Removal of v2 onion service support (was: Tor 0.4.6.1-alpha is released)

[Fabian Keil]

Nick Mathewson <nickm at torproject.org> wrote on 2021-03-18:

> Changes in version 0.4.6.1-alpha - 2021-03-18
>   Tor 0.4.6.1-alpha is the first alpha release in the 0.4.6.x series. It
>   improves client circuit performance, adds missing features, and
>   improves some of our DoS handling and statistics reporting. It also
>   includes numerous smaller bugfixes.

I was somewhat surprised for a while that I could no longer
access v2 onion services after upgrading to tor-0.4.6.1-alpha:

Mar 19 11:33:39.764 [warn] {APP} Invalid hostname jvauzb4sb3bwlsnc.onion; rejecting

It looks like the support was intentionally dropped in 2c865542b6.
Unless I missed it, the ChangeLog doesn't seem to mention this, though.

It also seems to be ahead of the previously announced deprecation timeline:
| 2. July 15th, 2021
| 0.4.6.x: Tor will no longer support v2 and support will be removed from the code base.
https://blog.torproject.org/v2-deprecation-timeline

In case of the Privoxy.org onion service it doesn't matter as
requests to http://jvauzb4sb3bwlsnc.onion/ are already redirected to
http://l3tczdiiwoo63iwxty4lhs6p7eaxop5micbn7vbliydgv63x5zrrrfyd.onion/
anyway, but I thought it was worth mentioning.

Fabian
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