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The Internet Engineering Task Force makes the Internet work better.

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  1. @IETF@ietf
    The #IETF126 Vienna meeting starts today (18-24 July 2026)! Registration for remote or onsite participation is still available. Catch up on the sessions with new topics, and watch livestreams of selected sessions—and recordings of all working sessions:
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  2. @IETF@ietf
    We've continued reduce waste and make our meetings more sustainable over the past year. We've also calculated the IETF's carbon footprint as part of a multi-year net zero effort. Read the full update for 2025:
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    2251.4K
  3. @IETF@ietf
    WATCH! Working sessions at #IETF124 start today with the first livestream begins at 2200 UTC on 3 November. Check out the IRTF Open session with always-excellent Applied Networking Research Prize (ANRP) talks:
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    2191.3K
  4. @IETF@ietf
    In January, the AI Preferences (AIPREF) WG began work to make it easier to express how AI models should use Internet content. After extensive discussion and collaboration at an interim meeting earlier this month, a new proposal is being considered:
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    006886
  5. @IETF@ietf
    The NETwork MODeling (NETMOD) WG is getting ready to publish the long-awaited updated versioning scheme for YANG modules published by the IETF. Read about importance and impact YANG Module Versioning and Semver will have on Internet-Draft authors:
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    026779
  6. @IETF@ietf
    ICYMI: Tracking standards adoption, involved in deployments and operations, or just curious about emerging Internet protocol trends? The "What's new at the IETF?" presented at the #RIPE91 meeting this week is for you!
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  7. @IETF@ietf
    UPDATED! Check out the newly-updated Suggested "Sessions for Getting Familiar with New Topics" post to see what's coming up at #IETF124 Montreal 1-7 November:
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    104703
  8. @IETF@ietf
    Don't forget! #IETF124 Montreal early registration cut off is 20 October 2025 UTC 23:59. Join 1000+ leading technologists working on emerging Internet technologies 1-7 October in Montreal and online:
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    002607
  9. @IETF@ietf
    The final agenda for #IETF124 Montreal on 1-7 November is now published! Check out the details of the upcoming #IETFHackathon, 100+ working sessions, and more. Register today before early registration rates end on 20 October. More information at:
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    001587
  10. @IETF@ietf
    Looking for new topics at the upcoming #IETF124 Montreal meeting 1-7 November? Check out sessions likely to include discussions and proposals accessible to Internet technologists whether they are new to the IETF or long-time participants:
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    002577
  11. @IETF@ietf
    If it were widely deployed, technology developed in the #SIDRops Working Group could quickly detect and defeat route hijack attacks that cause malicious rerouting of Internet traffic. Read more about a recent event affecting DNS:
    102413
  12. @IETF@ietf
    @IETF
    RT @inretafo: Submit nominations for the 2026 award period of the Applied Networking Research Prize until November 17, 2025
    010514
  13. @IETF@ietf
    The #IETF124 Montreal preliminary agenda is published! Details of the #IETFHackathon, 100+ working sessions scheduled for 1-7 November are now available. Get registration information and more at:
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    012512
  14. @IETF@ietf
    Registration is now open for #IETF125 Shenzhen! Plan to join 1000+ leading Internet technologist in person and online 14-20 March 2026 for 100+ working sessions, an #IETFHackathon, and more. Details at:
    Download
    027785
  15. @IETF@ietf
    DEADLINE: #IETF124 Birds-of-a-Feather (BOF) are due UTC 23:59 on 19 September 2025! Organizing a Birds-of-a-Feather (BOF) session is one way to bring a topic of discussion or possible new work the attention of the IETF community. More info at:
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    312563
  16. @IETF@ietf
    REMINDER: Super early registration for #IETF124 Montreal ends at UTC 23:59 on 15 September 2025! Don't miss out on joining 1000+ leading Internet technologists from around the world 1-7 November in-person or online. More info at:
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  17. @IETF@ietf
    The maintenance has been complete. All services are available.
    @IETF @ietf
    REMINDER: IETF Datatracker, Mail Archives, and other services will be unavailable during a maintenance window for IETF IT services starting at 1900 UTC on 14 August 2025.
    004894
  18. @IETF@ietf
    REMINDER: IETF Datatracker, Mail Archives, and other services will be unavailable during a maintenance window for IETF IT services starting at 1900 UTC on 14 August 2025.
    @IETF @ietf
    IETF IT service window: A 2-hour service window starting at 1900 UTC on 14 August 2025 is planned to allow a change in the underlying cloud infrastructure, improving performance, reliability, and manageability of the affected services. Read more:
    0282.1K
  19. @IETF@ietf
    IETF IT service window: A 2-hour service window starting at 1900 UTC on 14 August 2025 is planned to allow a change in the underlying cloud infrastructure, improving performance, reliability, and manageability of the affected services. Read more:
    0071.6K
  20. @IETF@ietf
    Have an idea for a topic of discussion or possible new work in the IETF? Organizing a Birds-of-a-Feather (BOF) session is one way to bring it to the attention of the IETF community. Submissions are being accepted now for BOFs during #IETF124. More info at:
    Download
    1214930