Users

We estimate the number of users by analyzing the requests induced by clients to relays and bridges.

Related events

The following events have been manually collected in the metrics-timeline Git repository and might be related to the displayed graph.

Dates	Places/Protocols	Description and Links
2016-12-21 to 2016-12-28	<OR> Relays Unknown	Drop in relay users. metrics-team thread thread continues
2016-12-15 to present	Congo, The Democratic Republic of the	The Democratic Republic of the Congo orders a block of social media services. article relay graph bridge graph
2016-12-13	obfs4	Tor Browser 6.5a6 is released. It fixes the `app.update.url`. It adds (uncomments) the default obfs4 bridge NX01:443. It activates timing obfuscation for certain obfs4 bridges. It changes the port of other obfs4 bridges. blog post
2016-12-12	Turkey <OR>	Turkey blocks direct Tor connections. The order to block had come on 2016-11-04. ticket tweet article
2016-12-09	ipv4 ipv6	geoip and geoip6 databases updated to "December 7 2016 Maxmind GeoLite2 Country" (`geoip-db-digest 1317BB3525E85E01FB34A89E04CE549AC23D07BD`, `geoip6-db-digest 865048C69BEC02B37268BFBAD66D9729B21CFCF5`). commit
2016-12-01	Belarus <OR> Relays	Belarus blocks the addresses of public Tor relays, apparently by RST injection. Bridges work, even unobfuscated ones. ticket article (Russian) OONI blog post
2016-11-30 to 2016-12-02	Gambia	Internet shutdown in Gambia. relay graph OONI report Cloudflare blog post
2016-11-22	meek	Decreased the rate limit on the meek-amazon bridge to 2.0 MB/s, from 3.0 MB/s.
2016-11-20 to 2016-12-22	Saudi Arabia Bridges Unknown	Decrease in direct users and increase in bridge users in Saudi Arabia. The increase in bridge users lasts only about one month while the number of direct users remains down. ticket
2016-11-20	Saudi Arabia <OR> Unknown	Decrease in direct users and increase in bridge users in Saudi Arabia. ticket
2016-11-18	obfs4	Default obfs4 bridge Lisbeth turns on timing obfuscation (`iat-mode=1`). ticket
2016-11-16		Tor Browser 6.5a4 is released. It changes the `app.update.url`. blog post ticket
2016-11-15	meek	Tor Browser 6.0.6 is released, unbreaking meek on macOS 10.12 (Sierra). (See 2016-09-20 breaking event.) blog post ticket
2016-11-15	obfs4	Default obfs4 bridges ndnop3 and ndnop5 turn on timing obfuscation (`iat-mode`). mailing list post ticket
2016-11-07	ipv4 ipv6	geoip and geoip6 databases updated to "November 3 2016 Maxmind GeoLite2 Country" (`geoip-db-digest 363C038D0BE61D6E0A63C43DE8EA70771ED7BEA5`, `geoip6-db-digest 6110A2B794AFF0180FD096A4759434CABD289C40`). commit
2016-11-04	Turkey	Turkey orders a block on VPN services and Tor. Turkish article English article ticket
2016-11-03 to present	Turkey	Turkey blocks Facebook, Twitter, YouTube, WhatsApp. article
2016-10-30	meek	Increased the rate limit on the meek-amazon bridge to 3.0 MB/s, from 1.0 MB/s.
2016-10-28	meek	Decreased the rate limit on the meek-amazon bridge to 1.0 MB/s, from 3.0 MB/s.
2016-10-25 to present	Egypt <OR> Relays	Egypt blocks Tor directory authorities and public relays by TCP RST. Bridges work. OONI report
2016-10-19 to 2016-11-10	meek	Large decrease in meek users, perhaps caused by problems in Orbot 15.0.2 BETA 1 that were fixed in Orbot 15.2.0 RC8. ticket initial email followup email Orbot mail
2016-10-09 to 2016-10-25	Israel <OR> Relays Unknown	Direct users fluctuate wildly in Israel. Bridge users not affected. graph
2016-10-08 to 2016-10-09	Turkey	Turkey blocks storage services including Dropbox, Google Drive, OneDrive, and GitHub. Most (all?) of the blocks were rescinded the next day. blocking article unblocking tweet unblocking article
2016-10-08	Ethiopia	Ethiopia declares a state of emergency and implements network blocks. OONI report
2016-10-05	ipv4 ipv6	geoip and geoip6 databases updated to "October 4 2016 Maxmind GeoLite2 Country" (`geoip-db-digest C14DF5AE94101562DEACDD296278B0EFA3EA26E5`, `geoip6-db-digest A88A828020A558D37F97CF683D4521270F0511A2`). commit
2016-10-02 to 2016-10-03	Egypt <OR> Relays	Reports that direct connections from Egypt are blocked; bridges are required. Maybe be the same as the block beginning 2016-10-25. OONI report
2016-09-28	meek	Rate limit on the meek-amazon bridge returns to 3.0 MB/s, having been set to about 1.0 MB/s for some time, cause uncertain.
2016-09-24	obfs3	Default obfs3 bridge LeifEricson upgrades and begins reporting statistics to the new bridge authority Bifroest. This is the last obfs3 bridge that hadn't upgraded.
2016-09-24	obfs4	Default obfs4 bridge LeifEricson upgrades and begins reporting statistics to the new bridge authority Bifroest. This is the last obfs4 bridge that hadn't upgraded.
2016-09-23 to 2016-11-28	obfs3	Outage of default obfs3 bridges "Unnamed" and "Unnamed" (fingerprint AF9F66B7B04F8FF6F32D455F05135250A16543C9). (Start date not known for sure, though it must have been after 2016-09-23; discussed in non-archived tor-team email.)
2016-09-23	obfs3	Default obfs3 bridges ndnop0 and ndnop2 upgrade and begin reporting statistics to the new bridge authority Bifroest. post on bridges not reporting statistics
2016-09-23	obfs3	Default obfs3 bridges "Unnamed" and "Unnamed" (fingerprint AF9F66B7B04F8FF6F32D455F05135250A16543C9) upgrade and begin reporting statistics to the new bridge authority Bifroest.
2016-09-23	obfs4	Default obfs3 bridges ndnop3 and ndnop5 upgrade and begin reporting statistics to the new bridge authority Bifroest. post on bridges not reporting statistics
2016-09-20	meek	macOS 10.12 (Sierra) is released, breaking some programs that are built with Go <1.7, including the meek-client that comes with Tor Browser. (See 2016-11-15 unbreaking event.) ticket
2016-09-07	ipv4 ipv6	geoip and geoip6 databases updated to "September 6 2016 Maxmind GeoLite2 Country" (`geoip-db-digest 72F8AD2CD7C97D173AD53276366EAD32B13E0A50`, `geoip6-db-digest B6427DEAD2291FBF8311A2233AF4960BF4009713`). commit
2016-09-04	Iran <OR>	Iran intensifies the blocking begun on 2016-08-20, getting most of the remaining direct users. There is interference in the graphs from the bridge authority changeover on 2016-09-02, but because the changeover would not have affected counts of ''direct'' users, it may be a coincidence. ticket
2016-09-02	Bridges	The former bridge authority Tonga shuts down. Bridges that have not updated to tor 0.2.8.7 or 0.2.9.2-alpha (which include all 5 default obfs3 bridges and 3/16 default obfs4 bridges) stop reporting statistics. shutdown notice blog post loss of reporting bridges
2016-08-31	Bridges	CollecTor begins publishing bridge stats from the new bridge authority Bifroest. post
2016-08-24	Bridges	tor 0.2.8.7 and 0.2.9.2-alpha are released, changing the bridge authority from Tonga to Bifroest. 0.2.8.7 announcement
2016-08-24	China <OR> Unknown	Large decrease in users in China. relay bridge
2016-08-20	Iran <OR>	Iran somehow blocks most direct Tor connections. May also affect bridge users, but it's hard to tell because there were few vanilla bridge users anyway. ticket
2016-08-18 to 2016-08-29	Mali Unknown	Sudden increase of direct and bridge users in Mali. relay graph bridge graph
2016-08-18	meek	Changed the meek-amazon CDN price class from "All" to "Use Only US, Canada and Europe."
2016-08-12	ipv4 ipv6	geoip and geoip6 databases updated to "August 2 2016 Maxmind GeoLite2 Country" (`geoip-db-digest 9DD185BEC4F482DDD20A0221B3DD3F40175F0123`, `geoip6-db-digest B1C1B6BDC9627E3D87530A2C70578AC69C20C5C6`). commit
2016-07-21 to 2017-03-03	Brazil meek Unknown	Sustained increase in meek users in Brazil. Locals believe that they are not actual users, rather bots or something like that. End date coincides with shutdown of meek-azure before migration. Would pick up again 2017-06-07. graph
2016-07-18	ipv4 ipv6	geoip and geoip6 databases updated to "July 6 2016 Maxmind GeoLite2 Country" (`geoip-db-digest 19FC902B6A860BA7E4BADCB5404482995F7E0763`, `geoip6-db-digest 7E717154718F2065240B90F8132F305AF78C9A9D`). commit
2016-07-15	Turkey <OR>	Coup attempt in Turkey. A paper (§ 4.1) reports a decline in Tor users. paper relay graph
2016-07-07	Zimbabwe	Four-hour block of WhatsApp in Zimbabwe. article
2016-06-12	ipv4 ipv6	geoip and geoip6 databases updated to "June 7 2016 Maxmind GeoLite2 Country" (`geoip-db-digest DA31976A9C7D48C2C16EA70BCE9006772A0F4A34`, `geoip6-db-digest FF1DD08CA9EB6528E1A6389E7154BD9586F24370`). commit
2016-06-01	Kazakhstan <OR> obfs4	Kazakhstan blocks vanilla Tor TLS. Users mostly switch to obfs4. ticket
2016-05-30	fte	Tor Browser 6.0 released, which lacks the fte pluggable transport on Mac. 6.0 blog post ticket
2016-05-13	meek	meek-google's App Engine instance is suspended and meek-google stops working. mailing list post
2016-05-11 to 2016-05-13	Uganda	Social media blackout in Uganda following presidential inauguration. advox article OONI report Freedom House report
2016-05-09	ipv4 ipv6	geoip and geoip6 databases updated to "May 4 2016 Maxmind GeoLite2 Country" (`geoip-db-digest 76631C314A048A59A1D801515CC7FD55CE719499`, `geoip6-db-digest C9392F0337A7509F1187890925CF7006F884ECBA`). commit
2016-05-02 to 2016-05-03	Brazil <OR>	WhatsApp block in Brazil blog post OONI report bloqueios report
2016-04-28	fte	Tor Browser 6.0a5 and 6.0a5-hardened released, which lacks the fte pluggable transport on Mac. 6.0a5 blog post 6.0a5-hardened blog post ticket
2016-04-07	ipv4 ipv6	geoip and geoip6 databases updated to "April 5 2016 Maxmind GeoLite2 Country" (`geoip-db-digest F9DFB82B6F1A480F07F4B87992CBFB7A48CB8DA2`, `geoip6-db-digest 769B499E6AE9FE0C2366141B931A3DB1B5489114`). commit
2016-03-27 to 2016-03-31	meek	Temporarily ran an experimental branch for IPv6 counting on the meek-azure bridge. task-18460-2 branch
2016-03-27	meek	Outage of meek-azure bridge, caused by an expired TLS certificate.
2016-03-04	ipv4 ipv6	geoip and geoip6 databases updated to "March 3 2016 Maxmind GeoLite2 Country" (`geoip-db-digest A34F49E5A871FA4D243C46C04B67BB3CAAFE6F74`, `geoip6-db-digest 9C8C4F7C7612849C88206726FCDA8CB85B8D27F3`). commit
2016-02-24	Turkmenistan <OR> Unknown	Large drop in direct users in Turkmenistan. graph
2016-02-17 to 2016-02-21	Uganda	Social media blackout in Uganda during presidential election. Freedom House report
2016-02-04	ipv4 ipv6	geoip and geoip6 databases updated to "February 2 2016 Maxmind GeoLite2 Country" (`geoip-db-digest 9E16EDBB826B958A7B8B84674EA98B78C13F1177`, `geoip6-db-digest DF9538534517275080F8335DDEE4B879A3314ED4`). commit
2016-01-29 to 2016-02-02	China meek	Temporary blocking of an Azure edge server in China. mailing list post
2016-01-16	meek	Increased rate limit of the meek-amazon bridge to 3 MB/s, from 1.1 MB/s.
2016-01-15	meek	Increased rate limit of the meek-google bridge to 3 MB/s, from 1.1 MB/s.
2016-01-14	meek	Increased rate limit of the meek-azure bridge to 3 MB/s, from 0.8 MB/s.
2016-01-11	meek	Enabled client IP statistics on the meek-amazon bridge. comment
2016-01-07	ipv4 ipv6	geoip and geoip6 databases updated to "January 5 2016 Maxmind GeoLite2 Country" (`geoip-db-digest 44FC92E4D3F8C9A3A49EE9A594790C52E684298A`, `geoip6-db-digest BB261912C96611967FE5C1AE2700C965DBB8D61C`). commit
2015-12-31 to 2020-06-04	Mexico	The Telmex ISP in Mexico blocks seven directory authorities. mailing list post article
2015-12-25	meek	Established an unthrottled bridge C20658946DD706A7A2181159A1A04CD838570D04 for people who set up their own meek CDN configuration.
2015-12-20	meek	Enabled client IP statistics on the meek-google bridge. comment
2015-12-14	meek	Enabled client IP statistics on the meek-azure bridge. comment
2015-12-05	ipv4 ipv6	geoip and geoip6 databases updated to "December 1 2015 Maxmind GeoLite2 Country" (`geoip-db-digest 6346E26E2BC96F8511588CE2695E9B0339A75D32`, `geoip6-db-digest 43CCB43DBC653D8CC16396A882C5F116A6004F0C`). commit
2015-11-18 to 2015-12-10	Bangladesh <OR> obfs3 obfs4	Bangladesh blocks Facebook, WhatsApp, and Viber. news article (archive) relay graph
2015-11-04	meek	Tor Browser 5.0.4 and 5.5a4 released, containing a fixed fingerprint for meek-amazon. 5.0.4 blog post 5.5a4 blog post ticket
2015-10-30	meek	Altered the performance settings on the meek-google App Engine instance. Set max idle instances to 2 and min pending latency to 1000 ms. This used to be configured through the web interface but is now configured in an application file, which at some point caused the settings from 2015-02-28 to be lost.
2015-10-30	meek	Further rate-limited the meek-azure bridge to 0.8 MB/s, from 1.1 MB/s.
2015-10-09	ipv4 ipv6	geoip and geoip6 databases updated to "October 9 2015 Maxmind GeoLite2 Country" (`geoip-db-digest 5BF366AD4A0572D82A1A0F6628AF8EF7725E3AB9`, `geoip6-db-digest 212DE17D5A368DCAFA19B95F168BFFA101145A93`). commit
2015-10-09	meek	The fingerprint of the meek-amazon bridge changes, as a result of begin rebooted. Released Tor Browsers with the former fingerprint are unable to connect. The fingerprint changed from 4EE0CC769EB4B15A872F742EDE27D298A59DCADE to 6DDD1DB8526282837C50E9AB5D14AB50150CD624, then again to B9E7141C594AF25699E0079C1F0146F409495296. The new fingerprint shipped with Tor Browser 5.0.4 and 5.5a4 on 2015-11-04. ticket
2015-10-02	meek	Rate-limited the meek-azure bridge to 1.1 MB/s. (Azure grant expired.)
2015-09-30 to 2015-10-09	meek	Outage of meek-amazon caused by an expired certificate. As a result of being rebooted, the bridge also changes its fingerprint from 4EE0CC769EB4B15A872F742EDE27D298A59DCADE to 6DDD1DB8526282837C50E9AB5D14AB50150CD624. mailing list post about start mailing list post about end ticket
2015-09-24	ipv4 ipv6	geoip and geoip6 databases updated to "September 3 2015 Maxmind GeoLite2 Country" (`geoip-db-digest 022B9BADD23D743E51F165FB4C87E78E59F0BCB8`, `geoip6-db-digest DE13219FCF0F27999D1F91174CF80291B1746C95`). commit
2015-09-23	meek	Upgraded meek-azure bridge from KVM to Xen. blog post
2015-08-11	meek	Tor Browser 5.0 and 5.5a1 released. They have an updated configuration to work around the meek-azure outage that started 2015-07-20. blog post blog post ticket
2015-07-29	ipv4 ipv6	geoip and geoip6 databases updated to "July 8 2015 Maxmind GeoLite2 Country" (`geoip-db-digest 6882B8663F74C23E26E3C2274C24CAB2E82D67A2`, `geoip6-db-digest F063BD5247EB9829E6B9E586393D7036656DAF44`). commit
2015-07-22	meek	Published a workaround for the meek-azure outage that started 2015-07-20. mailing list post
2015-07-20 to 2015-08-14	meek	Outage of meek-azure. mailing list post about start mailing list post about end
2015-06-09	ipv4	geoip database updated to "June 3 2015 Maxmind GeoLite2 Country" (`geoip-db-digest D095D62E8A1607C2C3AF61366929BCAD0E6D3184`). commit
2015-06-09	ipv6	geoip6 database updated to "June 3 2015 Maxmind GeoLite2 Country" (`geoip6-db-digest AC1BE3D0707D16AB04092FE00C9732658C926CD8`). commit
2015-06-08	meek	Rate-limited the meek-amazon bridge to 1.1 MB/s.
2015-06-02	meek	Further rate-limited meek-google to 1.1 MB/s, from 1.5 MB/s.
2015-05-22	meek	Rate-limited the meek-google bridge to 1.5 MB/s.
2015-04-27	obfs4	Release of Tor Browser 4.5, the first stable release with obfs4. blog post
2015-04-24	ipv4	geoip database updated to "April 8 2015 Maxmind GeoLite2 Country" (`geoip-db-digest 0A1F9C09E08F6F2490E8880664D4E863D1680A12`). commit
2015-04-24	ipv6	geoip6 database updated to "April 8 2015 Maxmind GeoLite2 Country" (`geoip6-db-digest A6E9B5DE6F887315749B29F9C9F698215BE5240A`). commit
2015-04-19	meek obfs4	Release of Orbot v15 alpha 5, first release with obfs4. mailing list post
2015-04-15	meek	Tor Weekly News covers the meek-azure performance improvement. blog post
2015-04-08	meek	Implemented persistent connections for meek-azure, increasing performance. mailing list post
2015-03-09	ipv4	geoip database updated to "March 3 2015 Maxmind GeoLite2 Country" (`geoip-db-digest C1EB5237F2FBAF63381D8551157F13D12EFCCA25`). commit
2015-03-09	ipv6	geoip6 database updated to "March 3 2015 Maxmind GeoLite2 Country" (`geoip6-db-digest 1F99B6B0EC78E9DB34D61AE7E0FC261D558E8E5D`). commit
2015-02-28	meek	Altered performance settings on the meek-google App Engine instance in an effort to reduce instance hours. Set max idle instances to 4 and min pending latency to 500 ms.
2015-02-14	meek	Release of Orbot v15-alpha-3, first release with meek. mailing list post
2015-01-22	ipv4	geoip database updated to "January 7 2015 Maxmind GeoLite2 Country" (`geoip-db-digest 49D309B9663C4EFB8D126D84BBB373D7C84658C3`). commit
2015-01-22	ipv6	geoip6 database updated to "January 7 2015 Maxmind GeoLite2 Country" (`geoip6-db-digest 9B26276EA470137894566882885AD82701D38D62`). commit
2014-11-24	ipv4	geoip database updated to "November 15 2014 Maxmind GeoLite2 Country" (`geoip-db-digest DC1A94D962AE165EF4AA1F14857A23C34875F39D`). commit
2014-11-24	ipv6	geoip6 database updated to "November 15 2014 Maxmind GeoLite2 Country" (`geoip6-db-digest 923BA7ED922B2A4B30C9B76EE7E72D1D1714BFAF`). commit
2014-11-17	obfs4	Release of Tor Browser 4.5-alpha-1, first alpha release with obfs4. (Tor Browser changelog says 2014-11-14.) blog post
2014-11-15	meek	Moved the meek-google bridge to better hardware.
2014-11-08	meek	Changed the meek-google App Engine instance back to the F1 class, from F2.
2014-10-31	meek	Changed the meek-google App Engine instance to the F2 class again, from F1.
2014-10-27	meek	Changed the meek-google App Engine instance back to the F1 class, from F2.
2014-10-25	meek	Changed the bridge backing meek-google.
2014-10-25	meek	Changed the meek-google App Engine instance to the F2 class, from F1.
2014-10-15	meek scramblesuit	Tor Browser 4.0 released. This is the first stable release with meek and ScrambleSuit built in. blog post
2014-10-14	meek	Enabled PublishServerDescriptor on the meek-amazon bridge. Between 2014-09-29 and 2014-10-14, meek-amazon users were not being counted. mailing list post
2014-09-29	meek	Changed the bridge backing meek-amazon.
2014-09-29	China	China blocks Instagram in response to ongoing protests in Hong Kong. A research paper by Hobbs and Roberts shows evidence for an increase in circumvention, but the measurable effect on Tor is slight if anything. relay graph bridge graph BBC article research paper
2014-09-26 to 2014-12-15	Hong Kong	"Umbrella Revolution" protests in Hong Kong. relay graph bridge graph
2014-09-16	meek	Switched meek-amazon to HTTPS. ticket
2014-09-15	flashproxy meek	Split the bridge running meek and flashproxy into separate processes in order to avoid spurious correlation in user counts. mailing list post
2014-08-29 to 2014-09-01	fte	Decrease in fte users, perhaps caused by an outage of one of the default Tor Browser bridges. mailing list post
2014-08-15	meek	'How to use the “meek” pluggable transport' blog post is published. blog post
2014-08-13	ipv4	geoip database updated to "August 7 2014 Maxmind GeoLite2 Country" (`geoip-db-digest 9EF0A1874377BFB6413ED3F9EB5504B1DB17BE13`). commit
2014-08-13	ipv6	geoip6 database updated to "August 7 2014 Maxmind GeoLite2 Country" (`geoip6-db-digest 542D349827A88738A04332DAFF2516A384BCC8FF`). commit
2014-08-12		Tor Browser 3.6.4 released. blog post
2014-08-12	meek scramblesuit	Tor Browser 4.0-alpha-1 released. This is the first release to have meek and ScrambleSuit built in. blog post
2014-07-28	meek	Set up meek-amazon CDN configuration.
2014-07-27 to 2014-09-23	Iran	Iran blocks Tor directory authorities. ticket
2014-07-18	ipv4	geoip database updated to "July 10 2014 Maxmind GeoLite2 Country" (`geoip-db-digest F2E34A314F2101E3F5AE0774660C4BA670646B8D`). commit
2014-07-18	ipv6	geoip6 database updated to "July 10 2014 Maxmind GeoLite2 Country" (`geoip6-db-digest 45893A1BDDABACCEB346DE4644A155450FD28B0E`). commit
2014-06-10	ipv4	geoip database updated to "June 4 2014 Maxmind GeoLite2 Country" (`geoip-db-digest BFC7453BBEAD611B7FF97AD71BE3392AA8BCFBE3`). commit
2014-06-10	ipv6	geoip6 database updated to "June 4 2014 Maxmind GeoLite2 Country" (`geoip6-db-digest E0A79ABC85672AACD47878029C2C383D4C669335`). commit
2014-06-01 to 2014-06-19	Russia <OR> Relays Unknown	Rapid increase of relay users in Russia, going from 80K to 200K before settling in around 150K.
2014-05-08	flashproxy meek	Reinstalled the bridge running meek and flash proxy.
2014-04-29	flashproxy fte obfs2 obfs3	Release of Tor Browser 3.6, the first stable release with integrated pluggable transports. blog post transport graph
2014-04-11		Release of Tor Browser 3.6-beta-2. blog post
2014-03-18	flashproxy fte obfs2 obfs3	Release of Tor Browser 3.6-beta-1, the first release with integrated pluggable transports. blog post
2014-02-25	ipv4	geoip database updated to "February 7 2014 Maxmind GeoLite2 Country" (`geoip-db-digest 182195DB4DA9A979A829012F71CF128FAF1203F7`). commit
2014-02-15	flashproxy meek	Began running meek-server on bridge already hosting websocket-server for flash proxy.
2014-02-13	ipv6	geoip6 database updated to "February 7 2014 Maxmind GeoLite2 Country" (`geoip6-db-digest FB95DF46D6B29167668F4D2CAC9F947C4B2A0C26`). commit
2014-02-08	ipv4	geoip database updated to "February 7 2014 Maxmind GeoLite2 Country" (`geoip-db-digest FA903A1122A248E107A1C17A5AC50A5852F03966`). commit
2014-01-31	meek	First public announcement of meek. mailing list post
2013-12-04	flashproxy obfs2 obfs3	Release of the pluggable transports browser bundle 2.4.18-rc-1-pt1 and 2.4.18-rc-2-pt1. blog post
2013-11-11	flashproxy obfs2 obfs3	Release of the pluggable transports browser bundle 2.4.17-rc-1-pt2. blog post
2013-11-04	flashproxy obfs2 obfs3	Release of the pluggable transports browser bundle 2.4.17-rc-1-pt1. blog post
2013-11-03	<OR> Relays	Microsoft adds the Mevade/Sefnit botnet signature to their Malicious Software Removal Tool. blog post
2013-10-27	<OR> Relays	Microsoft adds the Mevade/Sefnit botnet signature to various security scanners. blog post
2013-10-11	ipv4	geoip database updated to "October 2 2013 Maxmind GeoLite Country" (`geoip-db-digest A28267CED18A1D80B4298796E9FE42EC755420C0`). commit
2013-09-23	flashproxy obfs2 obfs3	Release of the pluggable transports browser bundle 2.4.17-beta-2-pt3. blog post
2013-09-10	ipv4	geoip database updated to "September 4 2013 Maxmind GeoLite Country" (`geoip-db-digest CB632F60547F141E06FB0705D1F171047165722E`). commit
2013-08-19 to 2014-04-28	<OR> Relays	Relay users increase globally from about 800K to over 5M, when computers in the Mevade/Sefnit botnet began using Tor to communicate. The user count decreased in the following months through efforts to clean up the botnet. Sometime in 2014-04, the botnet switched from using Tor to using SSH. blog post tech report analysis switch to SSH
2013-08-12	ipv4	geoip database updated to "August 7 2013 Maxmind GeoLite Country" (`geoip-db-digest 83CCB5AF823A5CCF3C86C3CA33AF801D4E8996EC`). commit
2013-08-10	flashproxy obfs2 obfs3	Release of the pluggable transports browser bundle 2.4.15-beta-2-pt1. blog post
2013-07-08	ipv4	geoip database updated to "July 3 2013 Maxmind GeoLite Country" (`geoip-db-digest 4D558EA73DD91A0361DE3FA3E83171DCD38D1A2D`). commit
2013-06-05	ipv4	geoip database updated to "June 5 2013 Maxmind GeoLite Country" (`geoip-db-digest 5E570BB92DBEE1D517E35DAA4A52F58FDA6BB44E`). commit
2013-06-02	flashproxy obfs2 obfs3	Release of the pluggable transports browser bundle 2.4.12-alpha-2-pt1. blog post
2013-05-13	ipv4	geoip database updated to "May 9 2013 Maxmind GeoLite Country" (`geoip-db-digest 2ADCA1913666A685B141C03E7B2F50B3DB84FDC9`). commit
2013-04-08	ipv4	geoip database updated to "April 3 2013 Maxmind GeoLite Country" (`geoip-db-digest 7DDD315EBCDC2A8BCA47A8B5153EB697947AC851`). commit
2013-03-19	flashproxy obfs2 obfs3	Release of the pluggable transports browser bundle 0.2.4.11-alpha-2. blog post
2013-03-07	ipv4	geoip database updated to "March 6 2013 Maxmind GeoLite Country" (`geoip-db-digest CB30D739CF972BEE0EF0635838A2AD76E2171004`). commit
2013-02-08	ipv4	geoip database updated (`geoip-db-digest 29DF86915FF87E2FBE12F3514776B7292B556CCD`). commit
2013-01-13	flashproxy obfs2 obfs3	Release of the pluggable transports browser bundle 2.4.7-alpha-1, containing flash proxy, obfs2, and obfs3 built in and enabled by default. blog post ticket
2013-01-05	ipv4	geoip database updated to "January 2 2013 Maxmind GeoLite Country" (`geoip-db-digest DBBBA6D1F6CD90E860DDD42C90A21CF8A1B8395F`). commit
2012-03-01 to 2013-08-19	Kazakhstan <OR>	Kazakhstan blocks Tor TLS by ClientHello and ServerHello fingerprints. ticket tor patches

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