[metrics-team] Hello from blackbird

[teor]

Hi,

> On 28 Feb 2019, at 19:00, Karsten Loesing <karsten at torproject.org> wrote:
> 
>> On 2019-02-22 23:05, Su Yu wrote:
>> 
>> I did some quick plotting in Jupyter notebook (see below; the figures
>> are also attached separately). Regarding the relays vs. bridges question
>> that you mentioned, it seems the bridges are better at keeping
>> themselves not /too/ outdated, but they're actually not that different
>> in keeping up-to-date?
> 
> Thanks for making these graphs. Though it's hard (for me) to interpret
> these results.
> 
> One reason might be that these graphs are considering a time frame of
> over 1 decade. A lot of things have changed over that time frame:
> 
> - The network has grown a lot over the years, which means that recent
> years have a greater weight in those graphs than distant years. This
> doesn't have to be a bad thing, it's just probably not intended and
> possibly surprising when interpreting the results.
> 
> - Release cycles have changed, with a much shorter cycle in the last
> year or two as compared to earlier years. This may skew results even more.
> 
> If I were to continue this analysis I'd try to look more at changes over
> time. Things I'd look at:
> 
> - How does the shorter release cycle affect update behavior? It's
> probably useful to look at Tor's change log to get an idea when versions
> have been updated, when versions have been sunset, and which versions
> have long-term support.

We have a summary page for past releases and our release schedule:
https://trac.torproject.org/projects/tor/wiki/org/teams/NetworkTeam/CoreTorReleases#Calendar:

T
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