comparing tor patch levels on different OSes

30 Mar 2015

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I wanted to know whether a particular OS tends to be more likely
running  outdated* tor releases than another.
In case others are interested as well, here is the answer.

OSX, OpenBSD and Windows are more likely running outdated tor releases
than FreeBSD or Linux. Probably not really surprising..

A more detailed answer:
(ordered from bad to better)

| OS     | outdated_fraction | outdated relays | outdated_cw_fraction |
+--------+-------------------+-----------------+----------------------+
| Darwin |           24.6154 |              16 |       		 0.03 |
| NetBSD |           22.2222 |               2 |      	 	 0.00 |
| OpenBSD|           21.8750 |              14 |      		 0.05 |
| Windows|           17.2189 |             291 |     		 0.01 |
| FreeBSD|            9.1743 |              20 |   	         0.15 |
| Linux  |            8.8392 |             597 |      	  	 4.29 |

(based on onionoo data from 2015-03-27)

If you are missing an OS (like SunOS) in the list, than this means
that it does not run any outdated release at all (outdated_fraction=0%).

*) actually it is about whether the relay uses a recommended version
as defined by dir auths
https://consensus-health.torproject.org/#recommendedversions
I "added" tor 0.2.7.x to the list to avoid flagging bleeding edge
relays as outdated.

Nusenu

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