CCF BSoftware Engineering and PL2022: BPublisher: USENIX
HotOSUSENIX Workshop on Hot Topics in Operating Systems
HotOS is a rank B conference in Software Engineering, System Software and Programming Languages in the CCF list's 7th edition (2026), as in 2022. The HotOS 2027 paper deadline is Feb 1, 2027, 23:59 AoE. HotOS 2027 takes place on May 24–26, 2027 in Burghausen, Bavaria, Germany.
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Data updated 8 November 2026 · rank from the CCF list's 7th edition
Current edition
HotOS 2027: call for papers timeline
- Feb 2, 2027, 11:59 UTC
- Apr 9, 2027As announced by the conferenceNotificationCommunity data · unverified
- May 24–26, 2027Local timeConferenceBurghausen, Bavaria, Germany
AoE (Anywhere on Earth) is UTC−12 (time zones explained). These dates come from the ccf-deadlines community project and have not yet been checked against the conference website; confirm them there before you submit. Conference website ↗
Past editions
Dates, venues, deadlines and acceptance rates
| Year | Paper deadline | Acceptance | Papers (dblp) | Dates | Venue |
|---|---|---|---|---|---|
| 2027 | 2027-02-01AoE | — | — | May 24–26, 2027 | Burghausen, Bavaria, Germany |
| 2025 | 2025-01-15AoE | — | 29 | May 14–16, 2025 | Banff, Alberta, Canada |
| 2023 | 2023-02-02AoE | — | 29 | Jun 22–24, 2023 | Providence, Rhode Island, USA |
| 2021 | 2021-02-03AoE | — | 34 | Jun 1–3, 2021 | Virtual |
| 2019 | — | — | 30 | — | — |
| 2017 | — | — | 29 | — | — |
Paper counts are dblp's main proceedings only, without workshop volumes; acceptance rates link to the page they come from. dblp ↗
CCF list
HotOS in the CCF list
- 7th edition (2026)
- CCF B Software Engineering, System Software and Programming Languages · no. 19
- 6th edition (2022)
- CCF B Software Engineering, System Software and Programming Languages
- Name in the list
- USENIX Workshop on Hot Topics in Operating Systems
- Publisher
- USENIX
- dblp
- conf/hotos ↗
CCF counts the full (regular) papers of a listed conference: short papers, demos, technical briefs, summaries, Findings and the workshops held with a conference are outside the list. CCF also says the list is a recommendation and should not be used on its own to evaluate research; your institution's rules decide. What counts, case by case →
FAQ
About HotOS
What CCF rank is HotOS?
HotOS is a rank B conference in Software Engineering, System Software and Programming Languages in the CCF list's 7th edition (2026), as in 2022.
When is the HotOS 2027 deadline?
Paper: Feb 1, 2027, 23:59 AoE (Feb 2, 2027, 11:59 UTC). The dates come from the ccf-deadlines community project; check the conference website before you submit.
Where is HotOS 2027?
HotOS 2027 takes place on May 24–26, 2027 in Burghausen, Bavaria, Germany.
Do HotOS workshop and short papers count as CCF B?
CCF counts the full (regular) papers of a listed conference: short papers, demos, technical briefs, summaries, Findings and the workshops held with a conference are outside the list. CCF also says the list is a recommendation and should not be used on its own to evaluate research; your institution's rules decide.
In more detail: Which CCF conference papers count · How to read conference deadlines
Sources: the CCF list of recommended international conferences and journals, 7th edition (published 31 March 2026, corrected 9 April 2026) and 6th edition (2022); editions, deadlines and acceptance rates from the ccf-deadlines community project (MIT licence), marked as community data until checked against each conference's website, then marked as checked with the website's own words; proceedings and paper counts from dblp (CC0).